JP2018198950A - Absorbent article - Google Patents

Abstract

To diffuse body fluid effectively over a non-compression region, and to absorb the body fluid in a wide range, even if compression lines are not formed close, in an absorbent article obtained by forming compression lines on an absorber.SOLUTION: In an absorbent article including a liquid-permeable top sheet 10, a back sheet 20, and at least two absorbers 30, 40 arranged in the laminated state between the top sheet 10 and the back sheet 20, the two absorbers have a plurality of compression lines 31, 41 formed by hollowing the absorbers in a thickness direction, and the compression lines of the two absorbers are intersected at least partially as a view from a plane direction.SELECTED DRAWING: Figure 1

Description

  The present invention relates to an absorbent article that is attached to a crotch of a wearer and absorbs and holds a liquid such as urine.

  2. Description of the Related Art Absorbent articles that are worn on a wearer's crotch are known for the purpose of absorbing and holding excreted body fluid. Examples of absorbent articles are disposable diapers, urine pads, and sanitary napkins. In addition, as disposable diapers, for example, a pants type in which the left and right sides of the front body and the back body are joined, or a tape type that is worn with a fastening tape attached to the back body attached to the front body It has been known.

  In addition, some absorbent articles are configured to be able to absorb a large amount of body fluid so that they can be worn for a long time or can be excreted by an adult. For example, as such an absorbent article, a urine absorbing pad with a high absorption amount used for nursing care is known. A high-absorption urine collection pad is generally used by being inserted into a tape-type or pants-type disposable diaper, and is replaced as appropriate after excretion. Such a urine collection pad generally includes an absorbent body composed of a large amount of absorbent material so as to absorb a large amount of body fluid, and its shape also covers a large area of the wearer's body. It is enlarged so that it can.

  However, even if the urine absorbing pad has a high absorption amount as described above, body fluid leaks out if worn for a long time, and the tape-type or pants-type disposable diaper placed under it will be soiled. Sometimes. That is, if it continues to wear for a long time, it will continue to absorb body fluid repeatedly at one place (especially the crotch part) of the absorbent body. For this reason, if the diffusibility of the absorber is poor, the absorption load is partially increased, and body fluid that cannot be completely absorbed when the absorption amount is saturated flows out from the urine collection pad. For this, in order to increase the amount of absorption in the crotch part of the absorbent body, it may be possible to increase the absorption of body fluids partially by increasing the absorbent material in the crotch part. Since the thickness is increased, there is a concern that the feeling of wearing becomes worse and the comfort is lowered.

  Then, in order to improve the diffusibility of a large sized absorber with such a high absorption amount, the absorbent article which compressed the part of the absorber in the thickness direction and formed the pressing line is known (patent document 1). And Patent Document 2). The absorbent body (absorbent core) disclosed in Patent Document 1 is subjected to dense embossing on a part that requires large body fluid absorbability and diffusibility of the absorbent body such as an inseam, and sparse embossing on the other part. The embossing is a continuous pattern as a whole. Moreover, the absorber disclosed by patent document 2 is comprised so that the grid-shaped pressing groove may be formed in the surface side, and the extending direction of this pressing groove may differ from a product longitudinal direction and a product width direction. Yes. Thus, even if a large amount of body fluid is locally disposed by forming a compression line on the absorber, the body fluid will be diffused along the compression line. The body fluid can be absorbed in a wide range, and as a result, the diffusibility of the absorber can be improved.

JP 2004-16373 A JP2015-16218A

  However, in the absorbent body in which the pressing line is formed, there is a large difference between the diffusibility of the portion where the pressing line is formed and the diffusibility of the region where the pressing line is not formed (non-squeezing region). Due to this difference in diffusivity, the body fluid diffuses widely along the squeezing line, but the phenomenon that the absorption into the non-squeezed area does not proceed, the body fluid reaches the end of the absorbent body along the squeezing line. There was a problem of leaking from the end.

  More specifically, in an absorbent body with a squeezed line, when the body fluid is absorbed by the absorbent body, the body fluid diffuses in time along the squeezed line due to capillarity, and the non-compressed body In the region, it will diffuse later. Thus, there is a time difference in the diffusion time of the body fluid between the part where the compression line is formed and the non-compressed region. When the basis weight of the absorbent material constituting the absorbent body is low, the time difference of the diffusion time is not a big problem, but if the basis weight of the absorbent material is increased to increase the amount of absorbed body fluid, The liquid absorption time in the pressing area becomes slower. For this reason, in the absorbent body with high absorption, the time difference in the diffusion time of the body fluid is further increased between the site where the compression line is formed and the non-compression area, and in some cases, only the compression line is wet with the body fluid, There may also be situations where the body fluids are hardly absorbed in the region. Furthermore, since the absorbent material is compressed, the site | part in which the pressing line was formed has little absorption amount of a bodily fluid compared with a non-pressing area | region. Therefore, a large amount of body fluid may reach the end of the absorbent body along the squeezing line and cause leakage to the outside.

  Moreover, in order to eliminate said problem, the countermeasure of narrowing the space | interval of the compression line formed in an absorber and making a body fluid osmose | permeate easily to a non-compression area | region is also considered. However, since the rigidity of the absorbent body increases around the squeezing line, increasing the density by narrowing the space between the squeezing lines makes the entire absorbent body harder and impairs the wearing feeling of the absorbent article. There is.

  Therefore, the present invention is effective in a non-squeezed region without forming the squeezing line densely in the absorbent article in which the squeezing line is formed in the absorbent body in order to improve the diffusibility while increasing the absorption amount of the body fluid. The problem to be solved is to diffuse the body fluid so that the body fluid can be absorbed in a wide range.

  The inventor of the present invention has intensively studied the means for solving the above problems, and as a result, the absorbent body is laminated in two or more layers to increase the amount of absorbed body fluid, while forming the squeezed line on each absorbent body. It was decided to cross the squeezed lines formed in the. As a result, it has been found that body fluid can be effectively diffused in the non-squeezed region without absorbing the compression line in each absorber, and the body fluid can be absorbed in a wide range. . The inventor has conceived that the above problem can be solved based on this knowledge, and has completed the present invention. More specifically, the present invention has the following configuration.

  The present invention relates to absorbent articles such as disposable diapers, urine pads, and sanitary napkins. The absorbent article includes a liquid-permeable top sheet 10, a back sheet 20, and at least two absorbers 30 and 40 that are stacked between them. The back sheet 20 is preferably a liquid-impermeable sheet member, but a liquid-permeable sheet member can also be used. Each of the two absorbent bodies 30 and 40 has a plurality of pressing lines 31 and 41 in which the absorbent body is recessed in the thickness direction. And the pressing lines 31 and 41 of two absorbers cross | intersect at least partially seeing from a planar direction. In addition, even if the pressing line 31 and 41 may be a thing in which the top sheet side (skin opposing surface side) of an absorber was depressed, the back sheet side (skin non-facing surface side) may be recessed. It may be good, or both sides may be depressed. Further, “viewed from the plane direction” means viewed from the direction facing the top sheet 10 or the back sheet 20.

  Like the said structure, the absorption amount of the whole absorbent article can be raised by laminating | stacking and arrange | positioning the two absorbers 30 and 40 in the thickness direction. Moreover, the diffusibility of a bodily fluid can be improved by forming the pressing lines 31 and 41 in each absorber 30,40. And by arrange | positioning each absorber 30 and 40 so that the mutual pressing lines 31 and 41 may cross | intersect, a bodily fluid can be effectively osmose | permeated also to the area | region (non-squeezing area | region) in which the pressing line is not formed. It becomes possible. That is, the body fluid diffused along the squeezing line of one absorbent body is easily absorbed by the non-compressed region of the other absorbent body. For this reason, the bodily fluid which spread | diffused along the pressing line of one absorber becomes difficult to reach an edge part, and the situation which leaks outside can be prevented effectively. In addition, since the body fluid can be absorbed in a wide range of the two-layer absorbers 30 and 40, the amount of body fluid absorbed is improved, and it is difficult for the wearer to feel uncomfortable even when worn for a long time. . Furthermore, by forming the pressing lines 31 and 41 on the two layers of the absorbers 30 and 40, it is not necessary to form the pressing lines densely on each absorber. For this reason, it can avoid that the touch of each absorber becomes hard.

  In the absorbent article of the present invention, the two absorbent bodies 30 and 40 may each include a plurality of non-squeezed regions 32 and 42 surrounded by pressing lines 31 and 41, respectively. In this case, it is preferable that at least a part of the squeezing line of one absorber overlaps the non-squeezing region of the other absorber.

  Since the non-compressed areas 32 and 42 are parts surrounded by the compressed lines 31 and 41 as in the above-described configuration, body fluid can be easily guided to the non-compressed areas 32 and 42. Moreover, it becomes easy to introduce the bodily fluid diffused through the squeezing line into the non-compressed region because a part of the squeezing line of at least one absorber overlaps the non-squeezed region of the other absorber.

  In the absorbent article of the present invention, the two absorbent bodies 30 and 40 may have a plurality of intersection portions 33 and 43 where the pressing lines 31 and 41 intersect, respectively. In this case, it is preferable that at least a part of the intersection of one absorbent body overlaps the non-compressed region of the other absorbent body.

  Like the said structure, since the pressing lines 31 and 41 cross | intersect at the intersection parts 33 and 43 formed in each absorber 30,40, a bodily fluid is easy to stay. And it becomes possible by making the intersection part of this one absorber overlap the non-compressed area | region of another absorber so that the bodily fluid staying at the intersection part can be effectively permeated into the non-compressed area.

  In the absorbent article of the present invention, when each absorber 30, 40 has a plurality of intersection portions 33, 43, the intersection portion of one absorber and the intersection portion of the other absorber are at least partially. It is preferable to overlap. That is, it is only necessary that at least a part of the plurality of intersections formed on one absorber overlaps at least a part of the plurality of intersections formed on the other absorber.

  Like the above-described configuration, the body fluid can be effectively circulated from one absorbent body to the other absorbent body through the overlapped intersection sections by overlapping the intersection sections of the respective absorbent bodies. That is, the body fluid diffused along the pressing line of one absorbent body once stays at the intersection, but at that time, moves to the pressing line of the other absorbent body through the intersection of the other absorbent body. Thus, the liquid-diffusion function of the pressing line of both absorbers can be effectively exhibited by overlapping the intersection parts of each absorber.

  In the present invention, it is assumed that the two absorbent bodies are the first absorbent body 30 located on the top sheet 10 side and the second absorbent body 40 located on the back sheet 20 side. In this case, the 2nd absorber 40 is formed with the pressing line 41 in which the surface by the side of the 1st absorber 30 was depressed, and in the site | part in which the said pressing line 41 was formed, the 1st absorber 30 and It is preferable that a gap is formed between them.

  As in the above-described configuration, since the gap is formed between the first absorbent body 30 and the second absorbent body 40, the body fluid absorbed by the first absorbent body 30 from the top sheet 10 side, It flows into the gap and is effectively diffused into the second absorber 40.

  In the absorbent article of the present invention, the first absorbent body 30 is formed with a pressing line 31 in which the surface on the second absorbent body side is depressed, and the second absorbent body is formed at the site where the pressing line 31 is formed. It is preferable that a gap is formed between 40 and 40.

  Like the above-described configuration, the body fluid that has penetrated the first absorbent body 30 easily flows down to the second absorbent body 40 by forming the squeezed wire 31 in which the surface on the back side of the first absorbent body 30 is recessed. Become.

  The absorbent article of the present invention further includes a third absorbent body 70 between the top sheet 10 and the first absorbent body 30 or between the back sheet 20 and the second absorbent body 40. It is good. In this case, similarly to the first absorber 30 and the second absorber 40, the third absorber 70 preferably has a plurality of pressing lines 71 in which the absorber is recessed in the thickness direction.

  By further providing the third absorbent body 70 as in the above configuration, the amount of absorption of the entire absorbent main body can be improved. Moreover, liquid diffusibility can be maintained by forming the pressing wire 71 also in the 3rd absorber 70. FIG.

  In the absorbent article of the present invention, the pressing line of one absorbent body extends in the longitudinal direction of the absorbent article, and the pressing line of the other absorbent body extends in the width direction of the absorbent article. It may be extended.

  Like the above configuration, the body fluid is diffused in the longitudinal direction by crossing the squeezing line of one absorbent body extending in the longitudinal direction and the squeezing line of the other absorbent body extending in the width direction. It becomes possible to diffuse. In particular, the body fluid is difficult to diffuse in the longitudinal direction, and the body fluid tends to leak from the end in the width direction. For this reason, it is preferable to form a pressing line extending in the longitudinal direction on the absorbent body arranged in the upper layer and forming a pressing line extending in the width direction on the absorbent body arranged in the lower layer. Thereby, the body fluid which contacted the upper absorbent body first can be diffused in the longitudinal direction, and thereafter, the bodily fluid that has permeated the lower absorbent body can be diffused in the width direction as an auxiliary. As a result, body fluid can be efficiently diffused in the longitudinal direction, and leakage from the end in the width direction can be prevented.

  In the absorbent article of the present invention, one absorbent body has a plurality of non-squeezed regions surrounded by a squeezing line, and the squeezing line of the other absorbent body is directed toward the longitudinal direction of the absorbent article. It may extend or extend in the width direction of the absorbent article.

  Like the said structure, the compression line formed in one absorber forms a non-squeeze area surrounded by the compression line as a grid pattern, for example, and the compression line formed in the other absorber Can be formed so as to extend in the longitudinal direction or the width direction. Even in such a form, the squeezing lines 31 and 41 of the two absorbent bodies are at least partially intersected when viewed from the plane direction, so that the body fluid is effectively diffused in the non-squeezed region, and the body fluid in a wide range. Can be absorbed.

  According to the present invention, in an absorbent article in which a squeezing line is formed on the absorbent body in order to improve the diffusibility while increasing the amount of absorption of body fluid, it is effective in a non-squeezed region without forming the squeezing line densely. It is possible to diffuse the body fluid and absorb the body fluid over a wide range. As a result, leakage of body fluid from the end of the absorbent body can be prevented without impairing the wearing feeling of the absorbent article.

Drawing 1 is a top view showing an absorptive article concerning a 1st embodiment. 2 is a cross-sectional view taken along the line II-II shown in FIG. FIG. 3 shows a state where the upper layer absorber and the lower layer absorber of the absorbent article according to the first embodiment are separated. FIG. 4 shows a state in which the upper layer absorber and the lower layer absorber of the absorbent article according to the first embodiment are overlapped. FIG. 5 is an enlarged view of a pattern of pressing lines formed on the upper layer absorber and the lower layer absorber. FIG. 6 shows a state where the upper layer absorber and the lower layer absorber of the absorbent article according to the second embodiment are separated. FIG. 7 shows a state in which the upper layer absorbent body and the lower layer absorbent body of the absorbent article according to the second embodiment are overlapped. FIG. 8 is an enlarged view of a pattern of pressing lines formed on the upper layer absorber and the lower layer absorber. FIG. 9 shows a state where the upper layer absorber and the lower layer absorber of the absorbent article according to the third embodiment are separated. FIG. 10 shows a state in which the upper layer absorber and the lower layer absorber of the absorbent article according to the third embodiment are overlapped. FIG. 11 shows an example of cross-sectional shapes of the upper layer absorber and the lower layer absorber. FIG. 12 shows examples of cross-sectional shapes of the upper layer absorber, the lower layer absorber, and the additional absorber.

  Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings. This invention is not limited to the form demonstrated below, The thing suitably changed in the range obvious to those skilled in the art from the following forms is also included.

In the present specification, “A to B” means “A or more and B or less”.
Further, in the present specification, the “longitudinal direction” means a direction in the absorbent article that connects the front body located on the wearer's abdomen side and the back body located on the wearer's back side. The “width direction” means a direction perpendicular to the longitudinal direction of the absorbent article. In FIG. 1 of the present application, the longitudinal direction of the absorbent article is indicated by the Y axis, and the width direction of the absorbent article is indicated by the X axis.
Moreover, in this-application specification, a "skin opposing surface" means the surface which opposes a wearer's skin at the time of wear of an absorbent article. The “non-skin facing surface” means a surface that does not face the wearer's skin when the absorbent article is worn.

[1. First Embodiment]
With reference to FIGS. 1-5, the absorbent article which concerns on the 1st Embodiment of this invention is demonstrated. The absorbent article according to the first embodiment is configured as a large urine collection pad. FIG. 1 is a plan view of the entire absorbent article 100, and FIG. 2 schematically shows a cross-sectional shape taken along the line II-II shown in FIG. In the cross-sectional view of FIG. 2, in order to show the configuration of the absorbent article 100 in an easy-to-understand manner, gaps are drawn between various components, but in reality, there are gaps between the components. Is hardly formed.

  As shown in FIG. 1, the absorbent article 100 includes a front body 1 located on the wearer's abdomen side, a back body 2 located on the wearer's back side, and a crotch 3 located therebetween. And can be divided in the longitudinal direction. Specifically, the absorbent article 100 has a shape that can be expressed as a gourd type or an hourglass type in a plan view. In other words, the absorbent article 100 has a constricted portion at the crotch 3 which is a portion where the lateral width of the absorbent article 100 is the narrowest. On the other hand, the front body 1 and the back body 2 of the absorbent article 100 have side flaps that are portions extending from the constricted portion of the crotch 3 to the left and right outer sides in the width direction. That is, in the portion where the side flaps are formed, the width of the front body 1 and the back body 2 is wider than the width of the constricted portion of the crotch 3. Thus, the absorbent article 100 can be a gourd type (hourglass type). However, the shape of the absorbent article 100 can be changed as appropriate, for example, a simple rectangular shape.

  As shown in FIGS. 1 and 2, the absorbent article 100 basically includes a liquid-permeable top sheet 10, a liquid-impermeable back sheet 20, and a plurality of them interposed therebetween. Absorbers 30 and 40 are provided. In the present specification, the absorber positioned on the top sheet 10 side is referred to as “upper layer absorber 30” (first absorber), and the absorber positioned on the back sheet 20 side is referred to as “lower layer absorber 40” (second absorber). Absorber). As shown in the sectional view of FIG. 2, the upper layer absorber 30 and the lower layer absorber 40 are overlapped in the thickness direction. Moreover, the upper layer absorber 30 and the lower layer absorber 40 are joined using an adhesive such as a hot-melt adhesive so that the relative positions of both do not shift. The top sheet 10 covers the skin facing surface side of the laminated absorbent bodies 30 and 40, and the back sheet 20 covers the skin non-facing surface side of the laminated absorbent bodies 30 and 40. As shown in FIGS. 1 and 2, the top sheet 10 and the back sheet 20 are joined to each other by a hot melt adhesive, heat seal, ultrasonic seal, or the like around each absorber 30, 40. Yes. As a result, the absorbent bodies 30 and 40 are surrounded by the joint between the top sheet 10 and the back sheet 20. In addition, a pair of three-dimensional gathers 50 are formed on both the left and right sides of the absorbent article 100 in the width direction. The pair of three-dimensional gathers 50 stands on both the left and right sides of the absorber, and functions as a leak-proof wall for preventing urine leakage. Furthermore, the absorbent article 100 may include a cover sheet 60 that covers the skin non-facing surface of the back sheet 20. Hereinafter, each member which comprises the absorbent article 100 is demonstrated.

  The top sheet 10 is a sheet-like member that is in direct contact with the skin of the wearer's crotch and allows body fluids such as urine to pass through the absorbers 30 and 40. For this reason, the top sheet 10 is composed of a liquid-permeable material having high flexibility. Examples of the liquid permeable material constituting the top sheet 10 are a woven fabric, a non-woven fabric, or a porous film. Further, for example, a fiber made of a thermoplastic resin such as polypropylene, polyethylene, polyester, or nylon, which has been subjected to a hydrophilization treatment and further made into a non-woven fabric may be used. Examples of the nonwoven fabric include air-through nonwoven fabric, point bond nonwoven fabric, spunbond nonwoven fabric, and melt blown nonwoven fabric.

  The backsheet 20 is a sheet-like member for preventing body fluid that has passed through the topsheet 10 and is absorbed by the absorbers 30 and 40 from leaking out of the diaper. For this reason, it is preferable that the back sheet 20 is comprised with a liquid-impermeable material. An example of the liquid-impermeable material constituting the backsheet 20 is a liquid-impermeable film made of polyethylene resin. In particular, as the back sheet 20, it is preferable to use a microporous polyethylene film in which a plurality of fine pores of 0.1 to 4 μm are formed in order to ensure air permeability while maintaining liquid impermeability.

  The absorbers 30 and 40 are members for absorbing body fluid such as urine and holding the absorbed body fluid. The absorbers 30 and 40 are disposed between the liquid-permeable top sheet 10 and the liquid-impermeable back sheet 20. It is preferable that the upper layer absorber 30 and the lower layer absorber 40 are joined by a hot melt adhesive or the like so that the relative positions of each other are not shifted. Each absorber 30 and 40 is comprised by the absorbent material 34 and 44 and the core wrap sheet | seats 35 and 45 which coat | cover it. As the absorptive materials 34 and 44, for example, fluff pulp obtained by pulverizing fiber materials such as conifers and hardwoods, superabsorbent polymer (SAP), and hydrophilic sheets may be used. Moreover, as the absorptive materials 34 and 44, one kind of fluff pulp, a super absorbent polymer, or a hydrophilic sheet may be used alone, or two or more kinds may be used in combination. Generally, the absorptive materials 34 and 44 are comprised by what spread | dispersed the super absorbent polymer in the fluff pulp. The core wrap sheets 35 and 45 are sheet members for holding the shape by covering the absorbent materials 34 and 44. As the core wrap sheets 35 and 45, sheet members having liquid permeability are used. As examples of the core wrap sheets 35 and 45, a thin paper such as tissue paper or a known nonwoven fabric can be used.

  In the present invention, it is preferable that the sizes of the upper absorber 30 and the lower absorber 40 are different. In particular, in the present invention, the length and width of the upper layer absorber 30 are preferably smaller than the length and width of the lower layer absorber 40. In this case, the upper layer absorbent body 30 is arranged on the lower layer absorbent body 40 with the crotch part 3 of the absorbent article 100 as the center. Thereby, the amount of absorption in the crotch part 3 with a large amount of body fluid excretion can be increased. However, the size and shape of the upper layer absorber 30 and the lower layer absorber 40 may be exactly the same.

  The pair of three-dimensional gathers 50 stands on both the left and right sides of the absorber, and serves as a leak-proof wall for preventing urine leakage. The three-dimensional gather 50 is generally constituted by a side sheet 51 and one or a plurality of elastic elastic members 52. In the crotch 3, the side sheet 51 is open at the outer side portion in the width direction to the skin facing surface side of the top sheet 10 and the back sheet 20, and the inner side portion in the width direction is joined. And the one or some elastic elastic member 52 is being fixed to the inner side edge part of the open | released side seat 51 in the expansion | extension state along the longitudinal direction. For this reason, when the elastic expansion / contraction member 52 contracts, the inner end portion of the side sheet 51 rises due to the contraction force of the elastic expansion / contraction member 52, and a crease (gather) is formed at the portion where the elastic expansion / contraction member 52 contracts. As the side sheet 51, for example, a non-woven sheet obtained by a manufacturing method such as card embossing or spunbond can be used, and it is particularly preferable to use a non-woven sheet such as SMS or SMMS having high waterproofness and air permeability.

  The cover sheet 60 is a member for reinforcing the back sheet 20 and improving its feel. The cover sheet 60 is bonded to the skin non-facing surface side of the back sheet 20. As the material constituting the cover sheet 60, a woven fabric or a non-woven fabric is used. In particular, it is preferable to use a nonwoven fabric or a wet nonwoven fabric made of a thermoplastic resin such as polyethylene, polypropylene, or polyester as a material constituting the cover sheet 60.

  As shown in FIG. 1 and FIG. 2, the absorbent article 100 according to the present invention has a plurality of compressed lines 31, 41 in which the absorbent bodies 30, 40 are recessed in the thickness direction. This is one of the features. That is, a plurality of pressing lines 31 and 41 are formed in each of the upper layer absorber 30 and the lower layer absorber 40. The pressing lines 31 and 41 can be formed by partially pressing and compressing the absorbent bodies 30 and 40 from both sides or either one of the skin facing surface side and the skin non-facing surface side. For this reason, in the site | part in which the pressing lines 31 and 41 were formed, the density of the absorptive material 34 and 44 in each absorber 30 and 40 will increase. And the pressing line 31 formed in the upper layer absorber 30 and the pressing line 41 formed in the lower layer absorber 40 have the pattern which mutually cross | intersect at least partially when it sees from a plane direction. Below, the pattern of the pressing line 31 formed in the upper layer absorber 30 and the pattern of the pressing line 41 formed in the lower layer absorber 40 are demonstrated in detail.

  FIGS. 3A and 3B are plan views in which the upper layer absorber 30 and the lower layer absorber 40 are conceptually separated and displayed side by side. Moreover, FIG.3 (c) and (d) have shown typically the cross-sectional shape of each absorber 30 and 40 in the III-III line. FIG. 4A shows a state in which the upper layer absorber 30 and the lower layer absorber 40 are overlapped, and FIG. 4B schematically shows the cross-sectional shape of the absorber along the line IV-IV. Yes. Furthermore, FIG. 5 expands and shows the pattern of the pressing line 31 formed in the upper layer absorber 30 and the pattern of the pressing line 41 formed in the lower layer absorber 40.

  As shown in FIGS. 3 to 5, pressing lines 31 are formed in the upper layer absorber 30 in a square lattice pattern. Here, the “square grid pattern” means that a plurality of squeezing lines extending in parallel with the longitudinal direction intersect with a plurality of squeezing lines extending in parallel with the width direction to define a square non-squeezed region. A pattern. In particular, in this embodiment, the pattern of the pressing line 31 in the upper layer absorbent body 30 is a regular pattern (a square lattice pattern) in which all the non-pressing areas 32 surrounded by the pressing line 31 are square. It has become. Thus, the upper layer absorbent body 30 is formed with a plurality of pressing lines 31, a non-squeezing region 32 surrounded by the pressing lines 31, and an intersection 33 where the pressing lines 31 intersect with each other. can do. Below, for convenience, the pressing line 31 in the upper layer absorbent body 30 is referred to as an “upper pressing line 31”, the non-pressing area 32 is referred to as an “upper non-pressing area 32”, and the intersection portion 33 is referred to as an “upper intersection section 33”.

  On the other hand, in the lower layer absorber 40, pressing lines 41 are formed in a rhombic lattice pattern. Here, the “rhombic grid pattern” is a pattern in which a plurality of squeezing lines extending in a direction inclined with respect to the longitudinal direction and the width direction intersect to define a rhombic (diamond) non-squeezed region. Say. In particular, in this embodiment, the pattern of the squeezing line 41 in the lower layer absorbent body 40 is a regular pattern in which all the non-squeezed areas 42 surrounded by the squeezing line 41 are orthorhombic (rhombic). A square lattice pattern). Thus, also in the lower layer absorber 40, it is an idea that a plurality of squeezed lines 41, a non-squeezed area 42 surrounded by the squeezed lines 41, and an intersection 43 where the squeezed lines 41 intersect are formed. can do. Below, for convenience, the pressing line 41 in the lower layer absorbent body 40 is referred to as a “lower pressing line 41”, the non-squeezing region 42 is referred to as a “lower non-squeezing region 42”, and the intersection portion 43 is referred to as a “lower intersection portion 43”. .

  Moreover, in this embodiment, the upper pressing line 31 is formed by compressing and denting the upper layer absorber 30 from the skin facing surface side. Similarly, the lower pressing line 41 is formed by compressing and recessing the lower layer absorbent body 40 from the skin facing surface side. For this reason, a gap will be formed between the upper layer absorbent body 30 and the lower layer absorbent body 40 in a portion where the lower pressing line 41 is formed in the lower layer absorbent body 40.

  4 and 5 show a state in which the pattern of the upper pressing line 31 in the form of a square lattice and the pattern of the lower pressing line 41 in the shape of an orthorhombic lattice are overlapped. As can be seen from each drawing, in the present embodiment, the area of the upper non-squeezed region 32 is larger than the area of the lower non-squeezed region 42. For this reason, when the upper layer absorber 30 and the lower layer absorber 40 are overlapped, the lower non-squeezed region 42 (the orthorhombic rectangular shape) is accommodated in the range of the upper non-squeezed region 32 (square).

  Moreover, in this embodiment, four lower side intersections that define a certain lower non-squeezed region 42 (an orthorhombic rectangle) on each of the four upper compressed lines 31 that define a certain upper non-squeezed region 32 (square). The part 43 has overlapped. For this reason, as FIG.4 and FIG.5 shows, it turns out that the lower non-pressing area | region 42 (rhombic square) fits in the range of the upper non-pressing area | region 32 (square). That is, the center of the upper non-squeezed region 32 (square) (intersection of diagonal lines) and the center of the lower non-squeezed region 42 (rectangular rectangle) (intersection of diagonal lines) coincide. Furthermore, as shown in FIG. 3, the length L in the longitudinal direction of the upper non-squeezed region 32 (square) is the length D1 of the diagonal line along the longitudinal direction of the lower non-squeezed region 42 (rhombus). Almost equal (L = D1). Further, the length B in the width direction of the upper non-squeezed region 32 (square) is substantially equal to the length D2 of the diagonal along the width direction of the lower non-squeezed region 42 (B = D2). Note that “almost” in this specification means that an error of ± 5% is allowed. By satisfying these conditions, four lower intersections defining a certain lower non-squeezed region 42 (rhombic square) on each of the four upper compressed lines 31 defining the upper non-squeezed region 32 (square). The part 43 will overlap.

  Moreover, as FIG.4 and FIG.5 shows, the upper side intersection part 33 has overlapped with the center (intersection of a diagonal line) of the lower non-pressing area | region 42 (rhombus square), respectively. From another point of view, there are a plurality of lower non-compressed regions 42 (rectangular squares) that overlap with the upper intersection 33 and those that do not overlap with the upper intersection 33. In the example shown in FIG.4 and FIG.5, the row | line | column of the upper intersection part 33 and the row | line | column which the upper intersection part 33 does not overlap are alternated every other row among the several row | line | columns of the lower non-pressing area | region 42. You can see that they are lined up. Similarly, it can be seen that among the plurality of rows of the lower non-squeezed region 42, every other row includes rows in which the upper intersection portion 33 overlaps and rows in which the upper intersection portion 33 does not overlap.

  As described above, by forming the pattern of the upper squeezing line 31 (square grid shape) and the pattern of the lower squeezing line 41 (rhombic rectangular grid shape), the compression line is not formed densely in one absorber. However, the body fluid can be effectively diffused in the non-compressed region, and the body fluid can be absorbed in a wide range of the entire two-layer absorber. That is, the body fluid diffused along the upper pressing line 31 of the upper layer absorbent body 30 is absorbed by the lower non-pressed region 42 of the lower layer absorbent body 40. For this reason, the bodily fluid which spread | diffused along the upper side compression line 31 of the upper layer absorber 30 becomes difficult to reach an edge part, and the situation which leaks outside can be prevented effectively. In addition, since the body fluid can be absorbed in a wide range of the two-layer absorbers 30 and 40, the amount of body fluid absorbed is improved, and it is difficult for the wearer to feel uncomfortable even when worn for a long time. . Since the squeezing lines 31 and 41 intersect at the intersections 33 and 43 formed in the absorbent bodies 30 and 40, the body fluid tends to stay. Therefore, the body fluid staying at the upper intersection 33 is effectively infiltrated into the lower non-compressed region 42 by overlapping the upper intersection 33 of the upper absorbent body 30 on the lower non-compressed region 42 of the lower absorbent 40. Is possible.

  Moreover, the body fluid which has penetrated into the upper-layer absorbent body 30 is further distant by setting the columns and rows of the lower non-compressed region 42 where the upper intersecting point portion 33 overlaps every other column and every other row as in this embodiment. It is possible to diffuse to the region. For this reason, the body fluid that has permeated the upper layer absorber 30 can be diffused and permeated over a wide area of the lower layer absorber 40.

  Moreover, a pressing line has the function to flow a liquid as a groove | channel, and the function to diffuse a liquid along a pressing part using a capillary phenomenon to the non-squeezing area | region around a pressing part. Even when used in a form that does not function as a groove, the liquid is transferred from the squeezing line of one absorbent body to the squeezing line or non-squeezed region of the other absorbent body. The reason is as follows. That is, the squeezing line is obtained by crushing the absorbent material constituting the absorbent body with pressure. For this reason, when an absorber absorbs a liquid in the site | part in which the pressing line was formed, thickness will change. That is, when the pulp or SAP in the pressing line absorbs liquid, the interval between the pulps is loosened over time and the SAP swells, so that the pressing line gradually becomes shallower, and finally the non-squeezed region after swelling The thickness is almost the same. In this way, even if the squeezed line has a depth before absorption, the depth gradually decreases as the liquid absorption proceeds. For this reason, it becomes easy to deliver a liquid from the pressing line of one absorber to the pressing line or non-pressing area | region provided in the other absorber which overlaps it. That is, since the squeezing line is a groove in the initial state, the liquid flows in preference to the squeezing line. And since the pressing line swells as the liquid absorption proceeds in the portion where the pressing line is formed, as described above, the liquid is applied to the pressing line or the non-squeezing region provided on the other absorbent body overlapping the swollen pressing line. Moving.

  Here, the specific numerical value regarding the component of an absorbent article is demonstrated. For example, the thickness of each absorber 30, 40, that is, the thickness of the non-compressed regions 32, 42 is preferably 5 mm to 20 mm, and particularly preferably 8 mm to 15 mm. Moreover, it is preferable that the thickness of each absorber 30 and 40 in the site | part in which the pressing lines 31 and 41 were formed is 1 mm-10 mm, and it is especially preferable that they are 2 mm-5 mm. However, as a matter of course, the thickness of the portion where the pressing lines 31 and 41 are formed is smaller than the thickness of the non-squeezing regions 32 and 42. For example, the thickness of the site | part in which the pressing lines 31 and 41 were formed is 3%-50% with respect to the thickness of the non-pressing area | regions 32 and 42, and it is preferable that it is especially 5%-20%.

  Moreover, it is preferable that the width | variety of each pressing wire 31 and 41 is 1 mm-5 mm, and it is preferable that it is especially 2 mm-4 mm. Moreover, it is preferable that the length L of the upper non-pressing area | region 32 shown in FIG. 2 is 10 mm-50 mm, and it is especially preferable that it is 20 mm-40 mm, or 30 mm. A preferable numerical range of the width B of the upper non-compressed region 32 is the same as the length L described above. The length L and the width B are preferably substantially equal, but may be different. That is, the shape of the upper non-squeezed region 32 is not limited to a square, but may be another square. Moreover, it is preferable that the length D1 of the diagonal in the longitudinal direction of the lower non-pressing area | region 42 shown in FIG. 2 is 10 mm-50 mm, and it is especially preferable that it is 20 mm-40 mm, or 30 mm. A preferable numerical range of the length D2 of the diagonal line in the width direction of the lower non-compressed region 42 is the same as the length D1 described above. The length D1 and the length D2 are preferably substantially equal, but may be different. In other words, the shape of the lower non-squeezed region 42 is not limited to an orthorhombic shape (regular rhombus), and may be other rhombuses. Further, as described above, it is preferable that the length L and the length D1 are substantially equal, and the width B and the length D2 are substantially equal, but the present invention is not limited to this.

  Moreover, the pressing lines 31 and 41 formed in the absorbent bodies 30 and 40 have a wide range in the longitudinal direction so that the body fluid discharged in the vicinity of the crotch can be diffused widely to the front body and the back body. It is preferable to be formed. Specifically, the length in the longitudinal direction of the region where the pressing lines 31 and 41 are formed is preferably 60% or more with respect to the length in the longitudinal direction of each absorbent body 30 and 40, 60% to Particularly preferred is 100%, 70% to 100%, or 80% to 100%. Moreover, the pressing lines 31 and 41 formed in the absorbent bodies 30 and 40 have a wide range in the width direction so that the body fluid discharged in the vicinity of the center in the width direction can be widely diffused outward in the width direction. It is preferable to be formed. Specifically, it is preferable that the maximum width in the width direction of the region where the pressing lines 31 and 41 are formed is 60% or more with respect to the minimum width in the width direction of the absorbent bodies 30 and 40. Particularly preferred is 100%, 70% to 100%, or 80% to 100%.

  In this embodiment, the upper squeezing line 31 is formed in a square lattice pattern in which the area of the non-squeezed area is relatively large, and the lower squeezing line 41 is a positive line in which the area of the non-squeezed area is relatively small. An example in which a rhombic lattice pattern is formed has been described. However, the pattern of this pressing line can be replaced with the upper pressing line 31 and the lower pressing line 41. That is, it is also possible to apply the above-described square grid pattern as the pattern of the lower pressing line 41 and apply the orthorhombic grid pattern as the pattern of the upper pressing line 31.

  Moreover, in the figure, the example in which the pressing lines 31 and 41 were formed by denting both the absorptive materials 34 and 44 and the core wrap sheets 35 and 45 which comprise each absorber 30 and 40 is shown. However, the pressing lines 31 and 41 should just be formed by compressing at least the absorptive material 34 and 44 and making it dent. That is, after compressing the absorptive materials 34 and 44 and forming the pressing lines 31 and 41, it is good also as joining the core wrap sheets 35 and 45 so that the absorptive material 34 and 44 may be coat | covered. In this sense, it is sufficient that the squeezing lines 31 and 41 are formed on the absorbent materials 34 and 44 constituting the respective absorbent bodies 30 and 40.

[2. Second Embodiment]
Then, with reference to FIGS. 6-8, the absorbent article which concerns on the 2nd Embodiment of this invention is demonstrated. In the second embodiment, description of the same configuration as that of the first embodiment will be omitted, and description will be made centering on a configuration different from that of the first embodiment.

  6 (a) and 6 (b) separately show the upper absorber 30 and the lower absorber 40, and FIGS. 6 (c) and 6 (d) show the cross-sectional shapes at VI-VI. . Fig.7 (a) shows the state which accumulated the upper layer absorber 30 and the lower layer absorber 40, and FIG.7 (b) has shown the cross-sectional shape in VII-VII. Moreover, FIG. 8 expands and shows the pattern of the pressing line 31 formed in the upper layer absorber 30, and the pattern of the pressing line 41 formed in the lower layer absorber 40. FIG. 6 and 7, conceptually, only the upper absorber 30 and the lower absorber 40 are extracted and shown. Although not shown in FIGS. 6 and 7, the second embodiment described here also includes at least a top sheet 10 and a back sheet 20, as in the first embodiment described above. Further, a pair of three-dimensional gathers 50 and a cover sheet 60 may be provided.

  The second embodiment is different from the first embodiment in the pattern of the pressing lines 31 and 41 formed on the absorbers 30 and 40, respectively. As shown in FIG. 6 to FIG. 8, the upper pressing line 31 is formed in an orthorhombic grid pattern in the upper absorbent body 30, and the lower pressing line 41 is square in the lower absorbent body 40. It is formed in a lattice pattern. Here, the orthorhombic grid pattern and the square grid pattern are basically the same as those described in the first embodiment. However, in the second embodiment, an orthorhombic grid pattern formed on the upper absorber 30 and a square formed on the lower absorber 40 in a state where the upper absorber 30 and the lower absorber 40 are overlapped. The relative positional relationship of the grid pattern is different from that of the first embodiment.

  As shown in FIGS. 7 and 8, in the second embodiment, the upper intersection 33 of the upper absorber 30 and the lower intersection 43 of the lower absorber 40 in a state where the absorbers 30 and 40 are stacked. And overlap. Further, among the plurality of upper intersection portions 33 in the upper layer absorbent body 30, there are those that overlap with the center (intersection of diagonal lines) of the lower non-squeezed region 42 of the lower layer absorbent body 40. In particular, in the range where the pattern of the upper pressing line 31 of the upper layer absorbent body 30 and the pattern of the lower pressing line 41 of the lower layer absorbent body 40 overlap, the upper intersection part 33 is within the range of all the lower non-pressed areas 42. Will exist. For this reason, in 2nd Embodiment, it turns out that the upper pressing line 31 has overlapped in the position corresponded to the diagonal of the lower non-pressing area | region 42 which makes square shape. Furthermore, in 2nd Embodiment, it turns out that the lower pressing line 41 has overlapped in the range of the upper non-pressing area | region 32. FIG.

  Thus, in 2nd Embodiment, the lower pressing line 41 overlaps in the range of the upper non-squeezing area 32, the upper pressing line 31 and the upper intersection part 33 overlap in the range of the lower non-squeezing area 42, In addition, the upper intersection 33 and the lower intersection 43 overlap each other. Therefore, the body fluid diffused along the upper pressing line 31 of the upper layer absorbent body 30 falls on the lower layer absorbent body 40 and is absorbed by the lower non-pressed region 42. Further, the body fluid staying at the upper intersection portion 33 of the upper layer absorber 30 falls to the lower layer absorber 40 and diffuses along the lower pressing line 41 through the lower intersection portion 43. Furthermore, the body fluid diffused along the lower pressing line 41 of the lower layer absorbent body 40 is absorbed by the upper non-pressed region 32 of the upper layer absorbent body 30. The lower pressing line 41 can also diffuse body fluid in the diagonal direction of the lattice pattern of the upper pressing line 31. Thus, by forming such a pattern, it is possible to quickly guide the body fluid to the non-squeezed areas 32 and 42 that have been conventionally considered to have a slow absorption time.

  Thus, it can be said that the pattern of the second embodiment has a faster body fluid absorption rate than the pattern of the first embodiment. In contrast, it can be said that the pattern of the first embodiment has a wider diffusion range of body fluids than the pattern of the second embodiment. Which of the pattern of the first embodiment and the pattern of the second embodiment is adopted may be appropriately determined in consideration of the performance required for the absorbent article.

  The width of each pressing line 31, 41, the length D1 of the diagonal line in the longitudinal direction of the upper non-squeezing area 32, the length D2 of the diagonal line in the width direction, or the length L in the longitudinal direction of the lower non-squeezing area 42 The value of the width B is preferably in the same range as in the first embodiment described above.

[3. Third Embodiment]
Then, with reference to FIGS. 9-10, the absorbent article which concerns on the 3rd Embodiment of this invention is demonstrated. 9A and 9B show the upper layer absorber 30 and the lower layer absorber 40 separately, and FIGS. 9C and 9D show the cross-sectional shape in IX-IX. . Fig.10 (a) shows the state which accumulated the upper layer absorber 30 and the lower layer absorber 40, and FIG.10 (b) has shown the cross-sectional shape in XX. 9 and 10 conceptually show only the upper layer absorber 30 and the lower layer absorber 40 extracted. Although not shown, the third embodiment described here also includes at least a top sheet 10 and a back sheet 20 as in the first embodiment described above, and further includes a pair of three-dimensional gathers 50 and A cover sheet 60 may be provided.

  In the third embodiment, the upper layer absorbent body 30 is formed with a plurality of upper pressing lines 31 extending in the longitudinal direction. In the illustrated example, the upper layer absorbent body 30 includes a central pressing line 31a located at the center in the width direction, a left pressing line 31b positioned on the left side, and a right pressing line 31c positioned on the right side. Each pressing line 31a, 31b, 31c extends from the front body of the upper layer absorbent body 30 through the crotch part to the rear viewing time. The entire center pressing line 31a is formed in a straight line along the longitudinal direction. On the other hand, the left squeezing line 31b and the right squeezing line 31c are respectively a linear front linear part 36a located at the end on the front body 1 side and a linear rear side located at the end on the rear viewing side. The straight part 36b and the crotch part 3 are divided into a straight crotch straight part 36c that is located on the inner side in the width direction than the front straight part 36a and the rear straight part 36b. Furthermore, the left squeezing line 31b and the right squeezing line 31c respectively connect the front inclined part 36d that is inclined so as to connect the front straight part 36a and the crotch straight part 36c, and the rear straight part 36b and the crotch straight part 36c. Thus, it has the rear side inclination part 36e inclined diagonally. Thereby, the space | interval between the center pressing line 31a and the left and right pressing lines 31b and 31c is comparatively separated on the front body side and the rear viewing side, and relatively close on the crotch part. Since the crotch part of the upper-layer absorbent body 30 is a part that is easy to touch body fluid excreted from the crotch of the wearer, the body fluid can be easily diffused in the longitudinal direction by reducing the interval between the squeezing lines 31 in this part. Become. In the present embodiment, the upper absorbent body 30 is not formed with a pressing line extending in the width direction. For this reason, the upper layer absorbent body 30 does not have an intersection of compressed lines.

  On the other hand, the lower layer absorbent body 40 is formed with a plurality of lower pressing lines 41 extending in the width direction. In the illustrated example, in the lower layer absorbent body 40, linear lower pressing lines 41 extending in the width direction are arranged at regular intervals in the longitudinal direction from the front body to the back. In the present embodiment, the lower absorbent body 40 is not formed with a pressing line extending in the longitudinal direction. For this reason, the lower layer absorbent body 40 does not have an intersection of compressed lines.

  When the upper layer absorbent body 30 and the lower layer absorbent body 40 are overlapped in the thickness direction, as shown in FIG. 10, the upper compressed line 31 of the upper layer absorbent body 30 and the lower compressed line 41 of the lower layer absorbent body 40 intersect. . In this way, by allowing the plurality of upper pressing lines 31 extending in the longitudinal direction and the pressing lines of the other absorbent body extending in the width direction to intersect, the body fluid is diffused in the longitudinal direction and also diffused in the width direction. Is possible. In particular, the body fluid is difficult to diffuse in the longitudinal direction, and the body fluid tends to leak from the end in the width direction. For this reason, the upper pressing line 31 extending in the longitudinal direction is formed on the upper layer absorbent body 30, and the lower pressing line 41 extending in the width direction is formed on the lower layer absorbent body 40. Thereby, the body fluid which contacted the upper layer absorber 30 first can be diffused in the longitudinal direction, and thereafter the body fluid that has permeated the lower layer absorber 40 can be diffused in the width direction as an auxiliary. As a result, body fluid can be efficiently diffused in the longitudinal direction, and leakage from the end in the width direction can be prevented.

[4. Example of cross-sectional shape of absorber]
In 1st, 2nd, and 3rd embodiment mentioned above, the example which forms the pressing lines 31 and 41 which dented the skin opposing surface side of the upper layer absorber 30 and the lower layer absorber 40 was demonstrated. However, the present invention is not limited to this. Hereinafter, another example of the cross-sectional shape of each absorber will be described.

  FIG. 11 shows examples of cross-sectional shapes of the upper layer absorber 30 and the lower layer absorber 40. In the example shown to Fig.11 (a), the pressing line 31 of the upper layer absorber 30 has become depressed in the skin non-opposing surface side, and the pressing line 41 of the lower layer absorber 40 is the skin opposing surface. The side is recessed. For this reason, the upper layer absorber 30 and the lower layer absorber 40 are formed with squeezed lines 31 and 41 on opposite surfaces. By doing in this way, a clearance gap arises between the upper layer absorber 30 or the lower layer absorber 40 in the site | part in which the pressing lines 31 and 41 were formed. Thereby, the body fluid that has flowed down from the upper layer absorber 30 to the lower layer absorber 40 diffuses over a wide area of the lower layer absorber 40.

  In the example shown in FIG. 11 (b), the pressing line 31 of the upper layer absorbent body 30 has both the skin facing surface side and the skin non-facing surface side depressed, and the lower layer absorbent body 40 is pressed. The line 41 is formed by recessing only the skin facing surface side. Thus, the upper layer absorber 30 and the lower layer absorption are maintained while maintaining the diffusibility of the body fluid on the surface of the upper layer absorber 30 by recessing both the skin facing surface side and the non-skin facing surface of the upper layer absorber 30. More gaps between the bodies 40 can be secured. For this reason, body fluid can be diffused in a wide range of both the upper layer absorber 30 and the lower layer absorber 40.

  In the example shown in FIG. 11 (c), the squeezing line 31 of the upper layer absorbent body 30 has both the skin facing surface side and the skin non-facing surface side recessed, and the lower layer absorbent body 40 The pressing line 41 also has both the skin facing surface side and the skin non-facing surface side recessed. As a result, as in the example shown in FIG. 11 (b), more clearance is secured between the upper absorber 30 and the lower absorber 40 while maintaining the diffusibility of the body fluid on the surface of the upper absorber 30. it can. Further, by denting both the skin facing surface side and the skin non-facing surface side of the lower layer absorbent body 40, while maintaining the diffusibility on the surface of the lower layer absorbent body 40, the body fluid is also applied to the back surface side of the lower layer absorbent body 40. Can be efficiently infiltrated. That is, the back sheet 20 (see FIG. 2) is disposed on the back side of the lower layer absorber 40. Then, by providing a gap between the lower layer absorbent body 40 and the back sheet 20, the body fluid reaching the back sheet 20 is further diffused through the pressing line 41 of the lower layer absorbent body 40 and absorbed on the back side of the lower layer absorbent body 40. Is done. Thereby, a bodily fluid can be absorbed by the whole upper layer absorber 30 and lower layer absorber 40.

  In the example shown in FIG. 11 (d), the squeezing line 31 of the upper layer absorbent body 30 is a depression of the skin facing surface side, and the squeezing line 41 of the lower layer absorbent body 40 is a non-skin facing surface. The side is recessed. For this reason, the upper layer absorber 30 and the lower layer absorber 40 are joined with almost no gap. Thus, it is also possible to join so as not to create a gap between the upper layer absorber 30 and the lower layer absorber 40.

  FIG. 12 shows an example of an absorbent article that further includes an additional absorber 70 (third absorber) in addition to the upper layer absorber 30 and the lower layer absorber 40. In the example of FIG. 12, the additional absorbent body 70 is disposed on the skin facing surface side of the upper layer absorbent body 30, that is, between the upper layer absorbent body 30 and the top sheet 10 (see FIG. 2). However, the additional absorbent body 70 can be disposed on the skin non-facing surface side of the lower layer absorbent body 40, that is, between the lower layer absorbent body 40 and the back sheet 20 (see FIG. 2). The additional absorbent body 70 preferably has a plurality of squeezed wires 71 as with the upper layer absorbent body 30 and the lower layer absorbent body 40. As shown in FIG. 12, the pressing line 71 may be one in which the skin facing surface side of the additional absorbent body 70 is recessed, or the skin non-facing surface side of the additional absorbent body 70 is recessed. There may be. Although the pattern of the pressing line 71 of the additional absorber 70 is not specifically limited, The pattern of the pressing line demonstrated in 1st, 2nd and 3rd embodiment is applicable suitably. In addition, although illustration is abbreviate | omitted, in addition to the additional absorber 70, it is also possible to superimpose one or several absorber.

  As mentioned above, in this specification, in order to express the content of this invention, embodiment of this invention was described, referring drawings. However, the present invention is not limited to the above-described embodiments, but includes modifications and improvements obvious to those skilled in the art based on the matters described in the present specification.

  For example, combining the pressing lines forming the lattice pattern described in the first embodiment and the second embodiment and the pressing lines extending in one direction of the longitudinal direction or the width direction described in the third embodiment. Is also possible. That is, of the two laminated absorbent bodies, one absorbent body has a plurality of non-squeezed areas surrounded by a squeezing line, and the other absorbent body extends in the longitudinal direction or the width direction. It can also have a plurality of pressing lines. For example, a square grid-like pressing line shown in FIG. 3 (a) is formed on the upper layer absorber 30, and a plurality of pressing lines extending along the width direction shown in FIG. 9 (b) are formed on the lower layer absorber 40. Can be formed and vice versa. Further, for example, a plurality of squeezing lines extending along the longitudinal direction shown in FIG. 9A are formed on the upper layer absorber 30, and the rhombic lattice shape shown in FIG. 3B is formed on the lower layer absorber 40. Squeezing lines can be formed and vice versa.

  In the specification of the present application, the case where the absorbent article according to the present invention is a urine collecting pad has been described as an example. However, the present invention is not limited to this, and a pants-type disposable diaper or a tape-type disposable is used. It is also applicable to diapers or sanitary napkins.

  The present invention relates to an absorbent article such as a urine collection pad and a disposable diaper. Therefore, the present invention can be suitably used in the manufacturing industry for absorbent articles and the like.

DESCRIPTION OF SYMBOLS 10 ... Top sheet 20 ... Back sheet 30 ... Upper layer absorber (1st absorber) 31 ... Upper pressing line 32 ... Upper non-pressing area 33 ... Upper intersection part 34 ... Absorbent material 35 ... Core wrap sheet 36a ... Front straight line Part 36b ... Rear straight part 36c ... Inseam straight part 36d ... Front slope part 36e ... Rear slope part 40 ... Lower layer absorber (second absorber)
DESCRIPTION OF SYMBOLS 41 ... Lower pressing line 42 ... Lower non-pressing area | region 43 ... Lower intersection part 44 ... Absorbent material 45 ... Core wrap sheet | seat 50 ... Solid gather 51 ... Side sheet 52 ... Elastic elastic member 60 ... Cover sheet 70 ... Additional absorption Body (third absorber)
71 ... pressing line 100 ... absorbent article

Claims (9)

A liquid-permeable top sheet (10), a back sheet (20), and at least two absorbers (30, 40) arranged between the top sheet (10) and the back sheet (20). And an absorbent article comprising:
Each of the two absorbent bodies (30, 40) has a plurality of squeezing lines (31, 41) in which the absorbent body is recessed in the thickness direction,
The said compression line (31, 41) of the said two absorbers has crossed at least partially seeing from the plane direction. The two absorbent bodies (30, 40) each have a plurality of non-squeezed areas (32, 42) surrounded by the pressing lines (31, 41),
The absorbent article according to claim 1, wherein at least a part of the pressing line of one of the absorbent bodies overlaps with the non-squeezing region of the other absorbent body. Each of the two absorbent bodies (30, 40) has a plurality of intersections (33, 43) intersecting with the pressing lines (31, 41),
The absorbent article according to claim 2, wherein at least a part of the intersection portion of one absorbent body overlaps the non-compressed region of the other absorbent body. The absorptive article according to claim 3. The intersection part of one absorber and the intersection part of the other absorber overlap at least partially. The two absorbers are a first absorber (30) located on the top sheet (10) side and a second absorber (40) located on the back sheet (20) side,
The said 2nd absorber (40) is the site | part in which the said pressing wire (41) in which the surface at the side of the said 1st absorber (30) side was dented was formed, and the said pressing wire (41) was formed The absorbent article according to claim 1, wherein a gap is formed between the first absorbent body (30) and the first absorbent body (30). The two absorbers are a first absorber (30) located on the top sheet (10) side and a second absorber (40) located on the back sheet (20) side,
In the first absorbent body (30), at least the pressing line (31) in which the surface on the second absorbent body side is depressed is formed, and the second absorbent is formed in the portion where the pressing line (31) is formed. The absorbent article according to claim 1, wherein a gap is formed between the absorbent body (40). The two absorbers are a first absorber (30) located on the top sheet (10) side and a second absorber (40) located on the back sheet (20) side,
Further, a third absorber is provided between the top sheet (10) and the first absorber (30) or between the back sheet (20) and the second absorber (40). (70)
The absorbent article according to claim 1, wherein the third absorbent body (70) has a plurality of pressing lines (71) in which the absorbent body is recessed in the thickness direction. The pressing line of one of the absorbent bodies extends in the longitudinal direction of the absorbent article,
The absorbent article according to claim 1, wherein the pressing line of the other absorbent body extends in a width direction of the absorbent article. One of the absorbent bodies has a plurality of non-squeezed areas surrounded by the pressing line,
The absorbent article according to claim 1, wherein the pressing line of the other absorbent body extends in a longitudinal direction of the absorbent article or extends in a width direction of the absorbent article.

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