JP2013075082A - Absorbent article - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an absorbent article having improved decorativeness while suppressing deterioration of absorption performance.SOLUTION: An absorbent article 1 includes a surface sheet 10, a back sheet 20, and an absorption body 30 positioned between the surface sheet and the back sheet. The absorption body has a colored layer 31 containing a colorant and an absorption layer 32 positioned closer to the surface sheet than the colored layer. Compression parts 80, where the surface sheet, absorption layer and colored layer are compressed from the surface sheet side to the back sheet side, are formed on the absorption body. The colored layer is formed by laminating colored fibers. The absorption layer is formed by laminating fibers using the airlaid method, and does not contain a binder for binding the fibers to each other.

Description

  The present invention relates to an absorbent article such as a sanitary napkin.

  In an absorbent article such as a sanitary napkin, in order to improve decorativeness, coloring that can be visually recognized by the wearer is performed from the surface sheet side. For example, Patent Document 1 discloses a sanitary napkin as an absorbent article having a liquid-permeable top sheet, a liquid-impermeable back sheet, and an absorbent body disposed between the top sheet and the back sheet. Describes providing a colored layer between the top sheet and the absorber.

  The surface sheet, the colored layer, and the absorbent body in the sanitary napkin described in Patent Document 1 are configured such that a compressed portion is formed by embossing, and the colored layer can be visually recognized through the compressed portion. The colored layer is made of a hot melt resin having a colorant. The part in which the pressing part was formed is crimped | bonded, and a surface sheet and an absorber can be adhere | attached through a colored layer.

JP 2009-207684 A (FIG. 1 etc.)

However, the sanitary napkin described above has the following problems.
The colored layer of the sanitary napkin described above is composed of a hot melt resin having a colorant. For example, to increase the color of the colored layer, it is conceivable to increase the amount of hot melt resin having a colorant. However, if the amount of hot melt resin is too large, the permeability of body fluid may be reduced.
On the other hand, if the amount of hot melt resin is reduced, the adhesion between the topsheet and the absorber may be reduced.

  This invention is made | formed in view of the above-mentioned subject, and it aims at providing the absorbent article which can improve a decorating property, suppressing the fall of absorption performance.

  In order to solve the problems described above, an absorbent article (absorbent article 1) according to the present disclosure includes a liquid-permeable top sheet (top sheet 10), a liquid-impermeable back sheet (back sheet 20), and the above An absorbent article having an absorber (absorber 30) disposed between a top sheet and the back sheet, wherein the absorber includes a colored layer (colored layer 31) containing a colorant, and the colored layer An absorbent layer (absorbing layer 32) disposed on the top sheet side than the top sheet, and the absorbent body includes the top sheet, the absorbing layer, and the colored layer from the top sheet side to the back surface. A compressed part (pressed part 80) compressed on the sheet side is formed, the colored layer is laminated with colored fibers, the absorbent layer is laminated with fibers by the airlaid method, and the fibers are separated from each other. Has a binder to bond The gist that no.

  As for the absorbent article which concerns on this indication, the pressing part is formed in the surface sheet, the absorption layer, and the coloring layer, and the part in which the pressing part was formed will be in the state where it dented from the surface sheet side toward the back sheet side. . Since the thickness of the surface sheet and the absorption layer in the portion where the pressing part is formed becomes thin, the wearer can visually recognize the colored layer through the pressing part from the surface sheet side.

  In the absorbent layer, fibers are laminated by the airlaid method, and the fibers are not bonded. Therefore, the fiber which comprises an absorption layer is movable to the circumference | surroundings of a pressing part, when a pressing part is formed. The fiber of the absorption layer of the part in which the pressing part was formed becomes thin, and a wearer becomes easy to visually recognize a colored layer from the surface sheet side.

  Moreover, the colored layer is laminated with colored fibers, and voids are formed between the fibers. Since voids are formed between the fibers, body fluid can be passed through the voids. For example, if the colored layer is colored by printing with a hydrophobic pigment, the body fluid absorption performance may be reduced. However, since the fibers themselves are colored, it is not necessary to separately perform a coloring process such as printing, and the body fluid absorption performance can be maintained. Therefore, the decorativeness can be enhanced while maintaining the absorption performance.

It is the top view seen from the skin contact surface side of the absorptive article concerning a 1st embodiment. It is a rear view of the absorbent article shown in FIG. It is a schematic cross section of the AA cross section shown in FIG. It is an expanded sectional view of B section shown in FIG. It is the top view seen from the skin contact surface side of the absorptive article concerning a 2nd embodiment. It is a schematic cross section of CC cross section shown in FIG. It is the top view seen from the skin contact surface side of the absorbent article which concerns on 3rd Embodiment. It is the top view seen from the skin contact surface side of the absorbent article which concerns on 4th Embodiment. It is a schematic cross section of the DD cross section shown in FIG. It is the top view seen from the skin contact surface side of the absorbent article which concerns on 5th Embodiment. It is the figure which expanded the pressing part shown in FIG.

(First embodiment)
With reference to FIGS. 1-4, the absorbent article 1 which concerns on the 1st Embodiment of this invention is demonstrated. FIG. 1 is a plan view of the absorbent article. FIG. 2 is a rear view of the absorbent article shown in FIG. FIG. 3 is a cross-sectional view taken along line AA shown in FIG. FIG. 4 is an enlarged cross-sectional view schematically showing a portion B shown in FIG. The absorbent article 1 according to the present embodiment is, for example, a sanitary napkin.

  In the following description of the drawings, the same or similar parts are denoted by the same or similar reference numerals. However, it should be noted that the drawings are schematic and ratios of dimensions are different from actual ones. Accordingly, specific dimensions and the like should be determined in consideration of the following description. Moreover, the part from which the relationship and ratio of a mutual dimension differ also in between drawings is contained.

  In addition, in the following schematic cross-sectional view, for convenience of explanation, the thickness dimension of the absorbent article is shown enlarged compared to the length dimension in the longitudinal direction and the width direction, but in the actual absorbent article, The dimension in the thickness direction is smaller than the length dimension in the longitudinal direction and the width direction.

  The absorbent article 1 according to the embodiment is a daytime sanitary napkin. The absorbent article 1 has a front region located on the front side of the wearer in the longitudinal direction and a rear region located on the rear side of the wearer, and the length of the front region in the longitudinal direction is It is the same as the length in the longitudinal direction of the side region.

  In the present embodiment, a sanitary napkin for daytime is described as an example, but the present invention can also be applied to a sanitary napkin for nighttime. The sanitary napkin for night use is configured such that the length of the rear region is longer than that of the front region.

  The absorbent article 1 includes a top sheet 10 that comes into contact with the wearer's skin, a liquid-impermeable back sheet 20 that does not transmit liquid, and an absorber 30. The absorber 30 is disposed between the top sheet 10 and the back sheet 20. Therefore, the absorber 30 is shown with a broken line in FIG.1 and FIG.2. The absorbent body 30 is disposed in the central portion in the longitudinal direction L of the absorbent article 1 and the width direction W orthogonal to the longitudinal direction L.

  The absorbent article 1 includes wing portions 43 and 44 provided outside the absorber 30 in the width direction W in the plan view shown in FIG. Furthermore, the absorbent article 1 includes side sheets 41 and 42 provided outside the absorber 30 in the width direction W.

  The top sheet 10 is a liquid-permeable sheet that transmits liquid such as body fluid. The top sheet 10 covers at least the surface of the absorber 30. The top sheet 10 is not particularly limited as long as it is a sheet-like material having a structure that allows liquid to permeate, such as a nonwoven fabric, a woven fabric, a perforated plastic sheet, and a mesh sheet. Either natural fibers or chemical fibers can be used as the woven or non-woven material.

  The back sheet 20 has substantially the same length as that of the top sheet 10. As the back sheet 20, a polyethylene sheet, a laminated nonwoven fabric mainly composed of polypropylene, a breathable resin film, a spunbond, a sheet obtained by bonding a breathable resin film to a nonwoven fabric such as spunlace, or the like can be used. The back sheet 20 is preferably made of a material having flexibility that does not cause a sense of incongruity when worn. The back sheet 20 is desirably liquid-impervious and moisture-permeable, and can be constituted by a microporous sheet obtained by stretching a melt-kneaded inorganic filler such as polyethylene or polypropylene. .

  The absorbent body 30 has a colored layer 31 and an absorbent layer 32 disposed on the surface sheet 10 side of the colored layer 31, and absorbs body fluid discharged from the wearer. The configuration of the absorber 30 will be described in detail later. The absorber 30 has a shape extending in the front-rear direction, and is approximately one size smaller than the back sheet 20. The length of the absorbent body 30 in the width direction W corresponds to the crotch interval of adult women.

  The side sheets 41 and 42 are disposed on both sides of the top sheet 10. The side sheets 41 and 42 can be selected from the same material as the top sheet 10. However, in order to prevent menstrual blood from flowing over the side sheets 41 and 42 to the outside of the absorbent article 1, it is preferable to have hydrophobicity or water repellency. The side sheets 41 and 42 cover a part of the side edge of the absorber 30 and the wing parts 43 and 44.

  An intermediate sheet 35 is provided between the top sheet 10 and the absorption layer 32. By providing the intermediate sheet 35, the body fluid absorption performance can be enhanced. The absorbent article may not have the intermediate sheet 35. In addition, the adhesive which is not illustrated is attached | subjected to the non-skin contact surface of a back surface sheet. The absorbent article can be adhered to the undergarment via the adhesive.

  The intermediate sheet should just be comprised by the sheet | seat which has liquid permeability, and may have absorptivity and does not need to have absorptivity. Examples of the method for producing the intermediate sheet include through air, spunlace, spunbond, SMS, tissue, and airlaid. Examples of the material for the intermediate sheet include polyolefin fibers (polyethylene, polypropylene, polyethylene terephthalate single fiber or composite fiber) and absorbent fibers (cotton, rayon, pulp, etc.).

  In the absorbent article 1, the periphery of the surface sheet 10, the intermediate sheet 35, the side sheets 41 and 42, and the back sheet 20 is joined, and the absorber 30 is enclosed.

  The absorbent article 1 is formed with a pressing portion 80 formed by pressing (embossing) at least the top sheet 10 and the absorbent body 30 in the thickness direction. The pressing unit 80 includes a first pressing groove 81 that surrounds the central area CA including the center of the excretion opening contact area that is disposed to face the excretion opening of the wearer, and a second pressing groove 82 that surrounds the first pressing groove 81. And having.

  The pressing unit 80 further includes a plurality of intermittently formed point-like pressing units, a first point-like pressing unit 83 formed in the central region CA inside the first pressing groove 81, and a first. A second point-like compressed part 84 formed outside the compressed groove 81 and inside the second compressed groove 82, and a third point-like compressed part arranged outside the second compressed groove 82. 85.

  The point-like compressed parts are arranged at a predetermined interval. It should be noted that a plurality of point-like compressed parts may be provided intermittently, and the shape is not limited to a circle, and may be an ellipse, a star, a hardware, a diamond, or the like, and is not limited.

  The pressing part 80 is formed by pressing the top sheet 10, the intermediate sheet 35, and the absorber 30. The pressing part 80 is formed by being compressed from the top sheet 10 side toward the back sheet 20 side, and is recessed from the top sheet 10 side toward the back sheet 20 side.

  The center of the excretory opening contact area is the center in the longitudinal direction and the width direction of the area in which the wearer's excretion opening contacts, and coincides with the center of the central area. For example, in an absorbent article having a wing portion, the center in the longitudinal direction of the wing portion is the center in the longitudinal direction of the excretory opening contact region. Moreover, in the absorbent article which does not have a wing part, the position where the length dimension of the width direction of an absorber is the shortest becomes the center of the longitudinal direction of an excretion opening | mouth contact | abutting area | region. The excretory opening contact region is included in a region that contacts the wearer's crotch, and is located between the wearer's legs. In the present embodiment, the center in the longitudinal direction and the center in the width direction of the absorber 30 coincide with the center of the excretory opening contact region and the center of the central region.

  Next, the configuration of the absorber 30 will be described in detail. The absorber 30 includes a colored layer 31 and an absorption layer 32 laminated on the colored layer 31. The absorbent layer 32 is formed by laminating short fibers including absorbent fibers by the airlaid method. The absorption layer 32 does not have a binder for bonding short fibers to each other, and the fibers in the absorption layer 32 are configured to be relatively movable. In addition, the absorption layer 32 should just be comprised so that fibers may not be adhere | attached with the binder, and the fibers may be adhere | attached by the pressing part 80. FIG.

  The short fiber in the present embodiment is a fiber that has been cut. The length of the short fiber is, for example, 15 mm to 100 mm, and a short fiber of about 35 mm to 60 mm can be suitably used.

  For example, the absorbent layer 32 may be constituted by a sheet containing rayon or an air-through nonwoven fabric, or may be constituted by a sheet containing pulverized pulp and having a relatively high absorbability of body fluid. Moreover, the absorption layer 32 can be comprised by the air laid sheet containing a synthetic fiber, the air laid sheet which does not contain a synthetic fiber, and the air laid sheet containing a pulverized pulp, for example.

  The colored layer 31 is laminated with colored fibers. The fibers of the colored layer 31 are colored with a color different from that of the absorbing layer 32. The colored layer 31 is formed by laminating fibers by the airlaid method. The colored layer 31 has a binder for bonding the fibers to each other, and the fibers in the colored layer 31 are bonded to each other.

  The binder only needs to have a configuration capable of bonding fibers together, and various configurations can be adopted. For example, the binder may be made of thermoplastic fibers (polyethylene, polypropylene) that can be heated to bond the fibers, or may be hydrophilic so that an emulsion dispersed in water can be applied by spray coating. It may be composed of a resin (vinyl acetate, ethylene-vinyl acetate copolymer (EVA), styrene-butadiene copolymer, etc.). In addition, when arranging a coloring agent in a binder, a pigment can be kneaded into the above-mentioned thermoplastic fiber, or the above-mentioned hydrophilic resin and pigment can be used by dispersing or dissolving in water. For example, when a pigment is dissolved in water in which a hydrophilic resin is dispersed, the whole can be colored uniformly.

  The colored layer 31 may be made of a nonwoven fabric containing absorbent fibers, or may be made of a nonwoven fabric not containing absorbent fibers. Nonwoven fabrics include, for example, SMS nonwoven fabrics and spunbond nonwoven fabrics. For example, by configuring the colored layer 31 with an SMS nonwoven fabric that does not include absorbent fibers, it is possible to increase the adhesion by the compressed portion 80, and by configuring the colored layer 31 with a nonwoven fabric that includes absorbent fibers such as pulverized pulp, The absorption performance of body fluid can be improved.

  The colorant is a hydrophilic dye and may be contained in a binder that joins fibers together or may be contained in fibers. Thus, by providing the binder or fiber with a colorant, the entire colored layer can be uniformly colored.

  In addition, the colored layer 31 may be comprised so that a coloring effect may be exhibited by providing a printing layer in the surface at the side of the absorber of the colored layer 31. FIG. However, when the printing layer is provided, the absorption performance of the body fluid may be deteriorated because the pigment or the like is hydrophobic. Moreover, coloring may not be performed on the entire colored layer 31 due to variations in the printed layer, and the portion where the compressed portion 80 is formed may not be colored.

  On the other hand, the whole colored layer 31 can be easily colored by exhibiting a coloring effect by the fibers and binders constituting the colored layer 31. Furthermore, when the colorant is formed by kneading fibers or binders instead of printing, a material exhibiting functions such as aroma, deodorant, and antibacterial can be easily mixed in addition to the colorant.

  Furthermore, by using a binder having a hydrophilic dye, a coloring effect can be exhibited without impairing the absorption performance. Moreover, even if it is a case where dye is melt | dissolved by bodily fluid, since the surface sheet 10 and the absorption layer 32 are arrange | positioned between the colored layer 31 and a wearer's skin, it is that a dye adheres to skin. Can be suppressed.

  As described above, the compressed portion 80 is formed by being compressed from the top sheet 10 side to the back sheet 20 side. The part in which the pressing part 80 was formed is dented from the surface sheet side, and the colored layer can be visually recognized through the pressing part. Since the part in which the pressing part is formed and the part in which the pressing part 80 is not formed look different colors, it is possible to display a pattern, a character, or the like depending on the shape of the pressing part, and to improve decorativeness. For example, by displaying characters and patterns on the absorbent article 1, it is possible to add cute and design added value such as fashion, and emotional value such as feeling breathability and high absorption performance.

  In addition, since the absorbent layer has fibers laminated by the airlaid method and the fibers are not bonded, the fibers constituting the absorbent layer can move around the compressed portion when compressed. Therefore, the fiber of the absorption layer of the part in which the pressing part was formed becomes thin, and a wearer becomes easy to visually recognize a colored layer from the surface sheet side.

In addition, even if the fiber in the portion where the compressed portion is formed is thin, the fibers constituting the colored layer are bonded by the binder and do not move to the periphery when the compressed portion is formed. The absorption performance can be maintained.
Therefore, the decorativeness can be enhanced while maintaining the absorption performance.

  In the colored layer 31, colored fibers are laminated, and voids are formed between the fibers. Since voids are formed between the fibers, body fluid can be passed through the voids. For example, if the colored layer is colored by printing with a hydrophobic pigment, the body fluid absorption performance may be reduced. However, since the fibers themselves are colored, it is not necessary to separately perform a coloring process such as printing, and the body fluid absorption performance can be maintained. Therefore, the decorativeness can be enhanced while maintaining the absorption performance.

  Moreover, since the colored layer 31 is arrange | positioned rather than the absorption layer 32 at the non-skin contact surface side, it can prevent that a coloring agent adheres to skin. Therefore, the skin trouble by the coloring agent of the colored layer 31 touching skin can be suppressed. Moreover, since the colored layer 31 is arrange | positioned rather than the absorption layer 32 at the non-skin contact surface side, the display part visually recognized via a pressing part, and the part by which the pressing part is not formed and is not colored Brightness and darkness can be emphasized, and the squeezed part can be made conspicuous.

  Furthermore, since the colored layer 31 is disposed on the non-skin contact surface side with respect to the absorbent layer 32, the colored layer 31 can increase the stiffness of the back sheet 20, and the back sheet can be easily attached to the underwear, The tearing of the back sheet 20 can be prevented. In addition, for example, the colored layer 31 has fibers laminated by an airlaid method, and menstrual blood is less likely to diffuse than a pulp layer. The wearer can visually recognize the state in which menstrual blood is not diffused when visually recognizing from the back sheet side, and can obtain a sense of security by wiping away the fear of leakage.

  Furthermore, the part in which the pressing part 80 was formed is a part where the fiber which comprises an absorption layer or a colored layer is compressed, and the density of a fiber is comparatively high. The portion where the density of the fibers is high has a higher body fluid drawability. For example, the bodily fluid of the whole center area | region was drawn in to the absorption layer 32 by the 1st point-like pressing part 83 arrange | positioned intermittently, and was drawn in to center area | region CA by the 1st pressing groove 81 surrounding central area | region CA. The body fluid can be absorbed and retained, and the spread of the body fluid from the central region to the surrounding region can be suppressed. Thus, the wearer can grasp a portion having high absorption performance and obtain a sense of security by making the compressed portion having relatively high absorption performance stand out by coloring.

  Since the body fluid is drawn by the pressing unit 80, the replacement time can be grasped by the absorption state of the pressing unit. Moreover, since the fiber part has melt | fused the part in which the pressing part 80 was formed, even if it is a case where a bodily fluid is absorbed, it is hard to swell. Therefore, the color of the colored layer 31 can be continuously recognized even in a wet state where the body fluid is absorbed.

  The colored layer 31 is formed longer than the absorbing layer 32 in the longitudinal direction and the width direction. By providing the colored layer larger than the absorbing layer, the edge of the absorbing layer 32 can be made to stand out. The wearer can easily recognize the size of the absorbent layer 32 and can visually grasp the leakage prevention effect. Furthermore, since the wearer can easily recognize the size of the absorbent layer 32, the wearer can be a guide of the mounting position and can suppress the shift of the mounting position. Furthermore, since the colored layer 31 is less diffusive than the absorbent layer 32, menstrual blood stops at the edge of the absorbent layer 32, and functional side leakage and longitudinal leakage are less likely to occur.

  In the present embodiment, the length of the colored layer 31 is longer than the length of the absorbing layer 32 in the longitudinal direction L and the width direction W, but at least one of the longitudinal direction L and the width direction W is configured. In this case, the length of the colored layer 31 may be longer than the length of the absorbing layer 32.

  Next, a part of manufacturing method of the absorbent article which concerns on this embodiment is demonstrated. In addition, about the method which is not demonstrated below, the existing method can be used. The manufacturing method of an absorbent article is equipped with an absorber formation process, an absorber joining process, and a pressing process process at least.

  In the absorbent body forming step, for example, the absorbent fiber 32 is formed by laminating the absorbent fiber by the airlaid method, the absorbent fiber 32 is laminated by the airlaid method, and the colorant and the binder resin are dispersed in water and sprayed. The sheet-like colored layer 31 is molded by joining the fibers. In addition, each layer may be molded by laminating water-absorbing fibers in the process of manufacturing a product, or after a layer formed by laminating absorbent fibers in advance is manufactured in a separate manufacturing process and then joined. May be. The airlaid method is a method in which fibers are dispersed in the air and the fibers are laminated.

  In the absorbent body joining step, the absorbent layer 32 and the colored layer 31 are joined to form the absorbent body 30, and the topsheet 10, the intermediate sheet 35, and the backsheet 20 are joined to the absorbent body 39.

  In the pressing process, the top sheet 10, the intermediate sheet 35, and the absorber 30 are pressed to form the pressing portion 80. At this time, the pressing part 80 is formed by performing a pressing process from the top sheet side toward the back sheet side. Specifically, the top sheet 10 and the like are covered between an upper roller in which a convex portion that forms a pressing groove and a pin that forms a point-like pressing portion project, and a lower roller that is disposed opposite to the upper roller. The compressed part formed by compressing the surface sheet 10, the intermediate sheet 35, and the absorber 30 in the thickness direction is formed by allowing the absorbent body 30 to pass through.

  The absorbent article 1 can be obtained by joining and cutting the back sheet to the absorbent body or the like thus configured. Further, by simultaneously embossing the top sheet 10, the absorbent layer 32, and the colored layer 31, the absorbent layer 32 and the top sheet 10 are formed into a film so that the color of the colored layer 31 can be recognized more clearly from the top sheet side. Become. Furthermore, by performing embossing at the same time, the colored layer 31 is integrated with the topsheet 10 and the like, and variations such as partial thinning or darkening of the color can be suppressed.

(Second Embodiment)
Next, an absorbent article 1A according to the second embodiment will be described with reference to FIGS. In the following embodiments, the same reference numerals are used for the same configurations as those in the first embodiment, and description thereof is omitted.

  The shape of the colored layer 31 according to the second embodiment in plan view is substantially the same as the shape of the absorption layer 32. Therefore, the colored layer 31 is not provided around the absorption layer 32 in plan view. The colored layer 31 disposed on the non-skin contact surface side of the absorbent layer 32 is configured to be visible only through the compressed portion 80.

  Further, in the absorbent article 1A according to the second embodiment, the intermediate sheet 35 is not disposed between the top sheet 10 and the absorbent body 30, and the top sheet 10 is formed on the skin contact surface side of the absorbent layer 32. Are joined.

  In addition, although the shape in planar view of the colored layer 31 in 2nd Embodiment is substantially the same as the absorption layer 32, the colored layer 31 may be comprised smaller than the absorption layer.

  Only the portion where the colored layer 31 is arranged is configured such that the shape of the absorption layer 32 in plan view is the same as the shape of the colored layer 31 in plan view or smaller than the shape of the colored layer 31 in plan view. Can stand out. For example, by arranging the colored layer 31 at the center, the wearer can visually recognize the colored layer 31 and grasp the center portion, which is a guide for positioning at the time of wearing. Further, for example, by providing the pressing portion 80 only in the excretion opening contact area, the excretion opening contact area can be emphasized.

  In the present embodiment, the length of the colored layer 31 is shorter than the length of the absorption layer 32 in the longitudinal direction L and the width direction W, but at least one of the longitudinal direction L and the width direction W is used. In this case, the length of the colored layer 31 only needs to be shorter than the length of the absorbing layer 32.

(Third embodiment)
Next, an absorbent article 1B according to the third embodiment will be described based on FIG. The absorbent layer 32 of the absorbent article 1B according to the third embodiment has a colorant having a color different from that of the colored layer 31. Therefore, the colored layer 31 and the absorbing layer 32 are colored with different colors. In addition, the shape of the colored layer 31 and the absorption layer 32 of 3rd Embodiment is the same as the shape of the colored layer 31 and the absorption layer 32 of 1st Embodiment.

  The portion where the compressed portion 80 is formed is configured so that the colored layer 31 is visible, and the portion where the compressed portion is not formed is configured so that the absorbent layer 32 is visible. Decoration can be performed by the color of the colored layer 31 and the color of the absorption layer 32 which are different colors, and the decoration effect can be further enhanced.

  Moreover, the part in which the pressing part 80 was formed can be made more conspicuous by making the color of the colored layer 31 darker than the absorption layer 32. FIG. A conspicuous feeling can be imparted to the wearer by conspicuously showing the squeezed portion 80 that exhibits absorption performance.

  In addition, by providing the color difference between the color of the colored layer 31 and the color of the absorption layer 32, the squeezed portion can be made conspicuous or the decoration effect can be enhanced. For example, the compressed portion can be made more conspicuous by making the two colors complementary. Further, the absorbing layer 32 may be a colored absorbing layer such as kenaf that is not bleached and is not colored with a colorant.

(Fourth embodiment)
Next, an absorbent article 1 </ b> C according to the fourth embodiment will be described based on FIGS. 8 and 9. In the absorbent article 1C according to the fourth embodiment, an intermediate sheet 35 is disposed between the absorbent body 30 and the top sheet 10, and the intermediate sheet 35 is colored with a color different from that of the colored layer 31. Is provided. The display unit 35a is configured to show a heart-shaped pattern in plan view. The wearer is configured to be able to visually recognize the display unit 35 a through the top sheet 10.

  In the present embodiment, the display unit 35a is configured to display a heart pattern. However, the display unit 35a may be configured to display a character or may be colored without showing a character or a pattern. It may be configured to display different colors.

  In a plan view, a pressing portion 80 is formed inside the display portion of the intermediate sheet 35. In the pressing part 80, the colored layer 31, the absorption layer 32, the top sheet 10, and the intermediate sheet 35 are compressed. The portion where the compressed portion 80 is formed is configured so that the colored layer 80 can be visually recognized. The design can be enhanced by the pattern of the intermediate sheet 35 and the shape of the pressing portion 80. For example, since the pattern of the absorption layer 32 and the pattern of the pressing unit 80 are arranged at different positions in the thickness direction, depth is given. Furthermore, it can be set as a three-dimensional design by interlocking the pattern of an absorption layer and the pattern of a pressing part.

  Further, since the intermediate sheet 35 is disposed on the surface sheet 10 side with respect to the absorbent body 30, even when body fluid such as menstrual blood is absorbed by the absorbent body 30, the printed portion of the intermediate sheet 35 is visually recognized. The effect is not lowered and the decorative effect can be continuously exhibited.

  In the present embodiment, the display unit 35a is formed by printing on the intermediate sheet 35. However, the configuration of the display unit 35a is not limited to this. For example, you may comprise a display part with hot-melt resin containing a coloring agent.

(Fifth embodiment)
Next, an absorbent article 1D according to the fifth embodiment will be described with reference to FIG. In the absorbent article 1D according to the fifth embodiment, the colored layer 31 is longer than the absorbent layer 32 in the longitudinal direction and the width direction. According to the absorbent article configured as described above, the decoration formed by the pattern formed on the intermediate sheet 35 and the compressed portion 80 can be given, and the outline of the absorbent layer 32 can be made conspicuous.

  Moreover, the pressing part 80 is comprised by the high pressing part which embossed with the high compressive force, and the low compression part which embossed with the low compressive force. FIG. 11 is an enlarged view of the pressing unit 80, and schematically shows the high pressing unit 80A and the low pressing unit 80B. When comparing the high-pressure squeezed part 80A and the low-pressure squeezed part 70B, the high-pressure squeezed part 80A has a higher density than the low-pressure squeezed part 80B, and therefore the body fluid drawability is increased. However, if the entire squeezed part is configured by the high-pressure squeezed part 80A, there is a risk that problems such as breakage occur during squeezing or excessive hardness will occur. On the other hand, the low-pressure squeezed part 80B is less likely to break and does not become too hard compared to the high-pressure squeezed part 80A. Therefore, a durable squeezing part can be formed while maintaining the retractability of body fluid by performing two-stage squeezing with the high-pressure squeezing part 80A and the low-pressure squeezing part 80B.

  Although the contents of the present invention have been disclosed through the embodiments of the present invention as described above, it should not be understood that the descriptions and drawings constituting a part of this disclosure limit the present invention. From this disclosure, various alternative embodiments, examples, and operational techniques will be apparent to those skilled in the art.

  Although the display unit 35 a of the present embodiment is provided on the intermediate sheet 35, it may be provided on the top sheet 10, may be provided on the absorbent layer 32, or may be provided on the skin more than the colored layer 31. What is necessary is just to be provided in the contact surface side.

  The pressing part 80 should just be formed by pressing at least the surface sheet 10 and the absorber 30 in the thickness direction T, and can adopt various configurations. For example, it can be formed by pressing or embossing, and the shape thereof may be a lattice network or a honeycomb shape.

  In addition, the surface sheet, the absorbent layer 32, and the intermediate sheet 35 where the compressed portion 80 is not formed are colored with a hot melt resin having printing or a colorant so that the compressed portion 80 is more prominent. May be.

  DESCRIPTION OF SYMBOLS 1,1A, 1B, 1C, 1D ... Absorbent article, 10 ... Top sheet, 20 ... Back sheet, 30 ... Absorber, 31 ... Colored layer, 32 ... Absorbing layer, 35 ... Intermediate sheet, 35a ... Display part, 41 , 42 ... side sheet, 43, 44 ... wing part, 80 ... pressing part, 81 ... first pressing groove, 82 ... second pressing groove, 83 ... first point-like pressing part, 84 ... second point-like pressing part, 85 ... 3rd point compression part, CA ... central area

Claims (9)

An absorbent article having a liquid-permeable top sheet, a liquid-impermeable back sheet, and an absorber disposed between the top sheet and the back sheet,
The absorber includes a colored layer, and an absorbent layer disposed on the top sheet side of the colored layer,
In the absorbent body, a compressed portion is formed by compressing the topsheet, the absorbent layer and the colored layer from the topsheet side to the backsheet side,
The colored layer is laminated with colored fibers,
The absorbent layer is an absorbent article in which fibers are laminated by an airlaid method and does not have a binder that bonds the fibers together.   The absorbent article according to claim 1, wherein the fibers of the colored layer are laminated by an airlaid method, and the fibers are bonded to each other with a binder.   The absorbent article according to claim 2, wherein the binder has a hydrophilic dye that colors the fiber.   The absorbent article according to claim 1, wherein the absorbent layer has fibers colored with a color different from that of the colored layer.   The absorbent article according to any one of claims 1 to 4, wherein a display portion colored with a color different from that of the colored layer is provided closer to the skin contact surface of the wearer than the colored layer. . An intermediate sheet is disposed between the top sheet and the absorber,
The said display part is an absorbent article in any one of Claims 1-5 provided in the said intermediate sheet.   The absorbent article according to any one of claims 1 to 6, wherein the fibers of the colored layer are constituted by short fibers including an absorbing fiber.   The length of the colored layer is longer than the length of the absorbent layer in at least one of the longitudinal direction of the absorbent article and the width direction orthogonal to the longitudinal direction. Absorbent article as described in 1.   The length of the colored layer is shorter than the length of the absorbent layer in at least one of the longitudinal direction of the absorbent article and the width direction orthogonal to the longitudinal direction. Absorbent article as described in 1.

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