JP2016209111A - Absorbent article - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an absorbent article which is excellent in absorption speed and anti-liquid return, can suppress wrinkles formed on a top sheet when worn, and prevent lateral leak caused by formation of the wrinkles.SOLUTION: An absorber is provided with absorption members on upper and lower two layers. A first absorption member of the upper layer is formed into a block shape divided into a longitudinal direction and a width direction. A second absorption member of the lower layer is not formed into a long block shape. The first absorption member is thinner than the second absorption member, low in SAP content rate and in density. A top sheet and the first absorption member are integrated by adhesive continuing at least in the longitudinal direction. The top sheet is recessed along a groove part in the longitudinal direction of the block shape of the first absorption member.SELECTED DRAWING: Figure 1

Description

  The present invention relates to an absorbent article.

  In general, absorbent articles such as disposable diapers are composed of a liquid-permeable top sheet, a liquid-impermeable back sheet, and an absorbent body made of cotton-like pulp or the like disposed between both sheets. ing. Thereby, body fluids, such as urine and blood, are absorbed by the absorber through the top sheet. In such absorbent articles, it is important to prevent body fluids such as urine and blood from leaking to the outside, so-called side leakage and longitudinal leakage. In addition to improving the amount of absorption itself, the absorber has slits, embossing, etc. A technique for improving the absorption rate and the liquid return is provided. However, such processing tends to cause excessive wrinkles between the top sheet and the absorbent body, which sometimes causes side leakage.

  As an absorbent article having improved absorption speed and liquid return by a method other than slitting or embossing, for example, Patent Document 1 has a high-density, high-basis-weight region in the absorber, and a recess in the region. An absorbent article is disclosed. Patent Document 2 discloses an absorbent article in which a band-shaped high-density part and a low-density part are provided in an absorber, a depression is formed in the high-density part from the top sheet, and the absorber and the top sheet are joined in the depression. Has been. Furthermore, Patent Document 3 discloses an absorbent article in which the absorbent body has a high basis weight portion and a low basis weight portion alternately in front, back, left, and right, and a concave groove is formed from the top sheet to the absorbent body.

JP 2009-131417 A JP 2011-255116 A JP2013-0099946A

  However, an absorbent article having a high density and high basis weight area formed on the absorbent body cannot suppress excessive wrinkles that occur between the top sheet and the absorbent body when worn, and prevents leakage due to the wrinkles. It was difficult.

  Therefore, an object of the present invention is to provide an absorbent article that is excellent in absorption rate and liquid return, and that suppresses wrinkles generated on the top sheet when worn, thereby preventing side leakage.

The present invention is grasped by the following composition.
(1) An absorbent article according to one aspect of the present invention includes a liquid-permeable top sheet, a liquid-impermeable back sheet disposed to face the top sheet, the top sheet, and the back sheet. An absorbent article provided between the first absorbent member and the first absorbent member, the absorbent article comprising a highly water-absorbing resin. A second absorbent member provided on the contact surface side, wherein the first absorbent member is formed in a block shape divided in the longitudinal direction and the width direction, and the second absorbent member is formed in the longitudinal direction and The first absorbent member is not formed in a block shape divided in the width direction, and the first absorbent member has a lower water-absorbing resin content than the second absorbent member. The first absorbent member is thinner than the second absorbent member, and the second absorbent portion The top sheet and the first absorbent member, which have a lower density than the material and are disposed on the skin contact surface side of the first absorbent member, are integrated with at least a continuous adhesive in the longitudinal direction, and The top sheet is recessed along a longitudinal groove portion of the block shape of the first absorbent member.
(2) An absorbent article according to another aspect of the present invention is the absorbent article according to (1), wherein the top sheet has a basis weight of 20 g / m ² or more and 1.3 dtex or more and 5.0 dtex or less. It is characterized by being a short-fiber thermal bond nonwoven fabric having a fineness of 10 mm.
(3) An absorbent article according to another aspect of the present invention is the absorbent article according to (1) or (2) above, wherein each of the first absorbent member and the second absorbent member is 2 mm. It has a thickness of 6 mm or less.
(4) An absorbent article according to another aspect of the present invention is the absorbent article according to (1) to (3) above, wherein each of the first absorbent member and the second absorbent member is 20 parts. It has a superabsorbent resin content of not less than 50% by weight and not more than 50% by weight.

  ADVANTAGE OF THE INVENTION According to this invention, the absorbent article which is excellent in an absorption rate and liquid return, can suppress the wrinkles which arise in a top sheet at the time of wear, and can prevent the side leakage by it can be provided.

It is a top view of an absorptive article concerning an embodiment of the present invention. It is sectional drawing of the absorbent article which concerns on embodiment of this invention, Comprising: It is sectional drawing in the A-A 'line | wire of FIG. It is sectional drawing which extracted the absorber and top sheet which concern on embodiment of this invention. It is the top view which extracted the 1st absorption member which concerns on embodiment of this invention, and the 1st absorption member of the comparative example. 4 (a) to 4 (c) are plan views schematically showing the block shape of the first absorbent member according to the embodiment of the present invention, and FIG. 4 (d) and FIG. 4 (e). These are the top views which showed typically the block shape of the 1st absorption member of a comparative example. It is a schematic diagram explaining the manufacturing method of the absorbent article which concerns on embodiment of this invention. In the manufacturing method of the absorbent article which concerns on embodiment of this invention, it is a schematic diagram which shows the application pattern of an adhesive agent.

  With reference to FIGS. 1-6, the absorbent article which concerns on embodiment of this invention, and its manufacturing method are demonstrated in detail. In the description of the embodiments, the same numbers are assigned to the same elements throughout. In the description of the present specification, the body fluid refers to a liquid discharged from the body such as urine, blood, and water in loose stool. Furthermore, the time when the absorbent article is worn means at least one of the time when the absorbent article is worn and after the wear. In addition, in description of this specification, the longitudinal direction of an absorbent article is a direction over a wearer's front and back when an absorbent article is worn, and is a direction shown with the code | symbol Y in a figure. Moreover, the width direction of an absorbent article is a direction which is transverse or orthogonal to the longitudinal direction, and is a direction indicated by a symbol X in the figure.

  1 is a plan view of an absorbent article according to an embodiment of the present invention, and FIG. 2 is a cross-sectional view of the absorbent article according to the embodiment of the present invention, taken along the line AA ′ of FIG. It is sectional drawing. As an absorbent article according to an embodiment of the present invention, a sanitary napkin as illustrated in FIG. 1 is exemplified, but is not limited thereto, panty liner, pants-type disposable paper diaper, tape-type disposable It may be a disposable diaper, a light incontinence pad, a urine collecting pad, or other absorbent article. As shown in FIGS. 1 and 2, the absorbent article 1 includes a liquid-permeable top sheet 20 disposed on the skin contact surface side, and a liquid-impermeable back disposed to face the top sheet 20. The sheet | seat 30 and the absorber 10 arrange | positioned between the top sheet | seat 20 and the back sheet | seat 30 are provided. Thereby, the absorber 10 has a structure sandwiched between the top sheet 20 and the back sheet 30. The absorbent body 10 includes a plurality of absorbent members including a first absorbent member 11 and a second absorbent member 12 provided closer to the non-skin contact surface than the first absorbent member 11.

(Top sheet)
The top sheet 20 allows body fluid to pass quickly toward the absorber 10, and is disposed to face the back sheet 30 with the absorber 10 in between. Since the top sheet 20 is a sheet that comes into contact with the skin, the base sheet does not irritate the skin with a soft feel, for example, a nonwoven fabric such as a thermal bond nonwoven fabric typified by an air-through nonwoven fabric, a thermal bond / span It is formed from a material such as a composite nonwoven fabric in which bonds are laminated, an open film such as an open polyethylene film, a foam film such as polyethylene foam or urethane foam, or a composite sheet in which these are laminated. The top sheet 20 may be provided as a single layer or a plurality of layers, and a plurality of through holes may be formed in order to impart dry touch properties. As the nonwoven fabric, those obtained by a known processing method such as a spunlace method or a spunbond method using synthetic fibers such as polyethylene, regenerated fibers such as rayon, and natural fibers such as cotton can be used. From the viewpoint of processability and strength, the top sheet 20 is preferably a short fiber thermal bond nonwoven fabric having a basis weight of 20 g / m ² or more and 40 g / m ² or less and a fineness of 1.3 dtex or more and 5.0 dtex or less, and 20 g / m ^2. and m ² or more 30 g / ^{m 2} or less of basis weight, more preferably a short fiber thermal bond nonwoven fabric having 4.0dtex following fineness than 2.0 dtex. The top sheet 20 may contain a lotion, an antioxidant, an anti-inflammatory component, a pH adjuster, an antibacterial agent, a moisturizing agent and the like in order to reduce irritation to the skin. The top sheet 20 may be provided in an hourglass shape, a rectangular shape, or the like having a constricted portion at the longitudinal center where the wearer's crotch is positioned, and is provided to extend slightly outward from the side edge of the absorbent body 10. May be.

  The three-dimensional gather 40 forms a confinement space for bodily fluids and feces, for example, and can prevent side leakage thereof. The three-dimensional gather 40 includes a three-dimensional gather sheet 41 and an elastic stretchable member 42 disposed along the free end of the three-dimensional gather sheet 41.

In order to promote body fluid diffusion to the upper surface of the absorbent body 10, a liquid diffusable sheet can be provided between the top sheet 20 and the first absorbent member 11. Examples of the liquid diffusive sheet include an air-through nonwoven fabric, a point bond nonwoven fabric, a spunbond nonwoven fabric and a meltblown nonwoven fabric, or a composite nonwoven fabric obtained by laminating spunbond / meltblown and spunbond / meltblown / spunbond. The thickness of the liquid diffusion sheet is preferably 0.1 mm or more, and the basis weight is preferably 15 g / m ² or more. If the thickness is less than 0.1 mm or the basis weight is less than 15 g / m ² , body fluid is not sufficiently diffused over the entire top surface of the first absorbent member 11, which is not preferable. In addition, the shape of the liquid diffusive sheet is not particularly limited, but the surface of the first absorbent member 11 may be completely covered so that liquid such as urine diffuses throughout the first absorbent member 11. A shape that can be formed is preferable.

(Back sheet)
The back sheet 30 is liquid-impermeable so that body fluid does not leak to the outside of the absorbent article 1, and a water-permeable sheet material is used. However, the back sheet 30 may have moisture permeability to prevent stuffiness. . Examples of the material of the back sheet 30 include thin plastic sheets such as polyethylene and polyethylene laminated nonwoven fabric. The back sheet 30 may be provided in an hourglass shape having a constricted portion at the longitudinal center where the wearer's crotch is positioned, a substantially rectangular shape, or the like, and is provided extending slightly outward from the side edge of the absorbent body 10. May be. Although not shown, an adhesive layer for fixing the absorbent article to the underwear or the like when worn may be provided on the non-skin contact surface side of the back sheet 30. When it has an adhesive layer, you may have a peeling sheet for protecting or exposing an adhesive layer further. The release sheet may be used as a packaging sheet for absorbent articles. The top sheet 20 and the back sheet 30 may constitute a flap that is fixed by a hot melt adhesive, heat seal, or the like without sandwiching the absorbent body 10 in at least a part of an end such as a longitudinal end. Good.

(Absorber)
The absorbent body 10 includes a first absorbent member 11 and a second absorbent member 12 provided on the non-skin contact surface side with respect to the first absorbent member, and the first absorbent member 11 has a longitudinal direction. The second absorbent member 12 is configured not to form the block shape 50 divided in the longitudinal direction and the width direction.

  3 (a) to 3 (c) are plan views schematically showing the block shape of the first absorbent member according to the embodiment of the present invention, and FIG. 3 (d) and FIG. 3 (e). These are the top views which showed typically the block shape of the 1st absorption member of a comparative example. As shown in FIG. 3A to FIG. 3C, a groove 51 is configured by a longitudinal groove 51 </ b> Y extending in the longitudinal direction of the absorbent article 1 and a lateral groove 51 </ b> X extending in the width direction of the absorbent article. The partitioned part becomes the land portion 52 of the block shape 50. The groove 51 can be applied to the first absorbent member 11 by a cutting means such as a cutter to form the block shape 50. In FIG. 3, the land portion 52 is shown as a rectangle in FIG. 3, but is not limited thereto, and may be a circle or an ellipse. Further, the width and length of the land portion 52 are preferably 1 cm or more and 5 cm or less from the viewpoint of improving the wearability of the wearer, and the width of the groove portion 51 is 0.2 cm or more and 1.0 cm or less from the point of absorption speed. preferable.

The first absorbent member 11 and the top sheet 20 are integrated with at least a continuous adhesive in the longitudinal direction, and the top sheet 20 is recessed along the longitudinal groove 51Y of the block shape 50 of the first absorbent member 11. ing. The adhesive is not particularly limited as long as it is generally used in absorbent articles. For example, SIS (styrene / isoprene / styrene block copolymer) -based hot melt adhesive, SBS (styrene / butadiene / styrene). Block copolymer) hot melt adhesive, SEBS (styrene / ethylene / butylene / styrene block copolymer) hot melt adhesive, and the like. The coating amount of the hot melt adhesive applied from the softness retention point when worn, is preferably 1 g / ^{m 2} or more 20 g / ^{m 2} or less, 3 g / ^{m 2} or more 15 g / ^{m 2} or less It is more preferable that With this configuration, body fluid mainly moves quickly from the groove 51 to the absorbent body 10, and at the same time, suppresses excessive wrinkles that occur between the top sheet 20 and the absorbent body 10, and prevents leakage due to the wrinkles. be able to.

  The base material of the absorbent body 10 is not particularly limited as long as it is generally used for absorbent articles such as sanitary napkins, diapers, and urine pads. For example, fluff pulp, cotton, rayon, acetate, tissue, absorbent paper It is formed from a material such as a hydrophilic nonwoven fabric. Among these, fluff pulp is preferable from the viewpoint of absorbability to body fluids. Examples of such fluff pulp include wood pulp, synthetic fibers, polymer fibers, etc. and non-wood pulp defibrated into cotton. Moreover, the base material of the absorber 10 contains a superabsorbent polymer (SAP: Superabsorbent Polymer). Examples of the superabsorbent resin include polyacrylate cross-linked products, self-crosslinked polyacrylates, saponified products of acrylic ester-vinyl acetate copolymer cross-linked products, cross-linked products of isobutylene / maleic anhydride copolymer, polysulfone Examples include cross-linked acid salts, and partially cross-linked water-swellable polymers such as polyethylene oxide and polyacrylamide. Among these, as the highly water-absorbing resin, acrylic acid or acrylate-based resins that are excellent in water absorption and water absorption speed are preferable.

  The base material and SAP of the absorbent body 10 are preferably formed by mixing SAP particles in the base material, or an SAP sheet in which superabsorbent polymer particles are fixed between the base materials. In order to prevent leakage of SAP particles and to stabilize the shape of the absorbent body 10, it is preferable to wrap the absorbent body 10 in a carrier sheet. As a base material of a carrier sheet, what is necessary is just to have hydrophilicity, and hydrophilic nonwoven fabrics, such as tissue, an absorbent paper, an airlaid nonwoven fabric, can be mention | raise | lifted. In the case where a plurality of carrier sheets are provided, the base material of the carrier sheet may be the same or different.

The first absorbent member 11 is thinner than the second absorbent member 12. Thereby, the shape of the absorbent body 10 composed of the upper and lower layers can be stabilized, the body fluid can be effectively prevented from leaking, and an excellent wearing feeling can be provided. The thicknesses of the first absorbing member 11 and the second absorbing member 12 are preferably 2 mm or more and 6 mm or less, respectively. If it is less than 2 mm, the amount of absorption is small, and if it exceeds 6 mm, the wearability after absorbing body fluid is reduced. The first absorbent member 11 has a lower density than the second absorbent member 12. Thus, the density of the first absorbent member 11 and the second absorbent member 12, from the viewpoint of the balance of the liquid permeability and durability, respectively and 0.06 g / cm ³ or more 0.2 g / cm ³ or less It is preferable.

  The content of the superabsorbent resin in the first absorbent member 11 is lower than the content of the superabsorbent resin in the second absorbent member 12. Thereby, expansion | swelling at the time of the bodily fluid absorption of the 2nd absorption member 12 can be restrained low, maintaining the bodily fluid absorption amount as the absorber 10 whole, and the foreign material feeling at the time of wear can be reduced. Moreover, it is preferable that the content rate of each super absorbent polymer is 20 to 50 weight% with respect to the weight of each absorption member. More preferably, the content of the superabsorbent resin in the first absorbent member 11 is 15 wt% or more and 30 wt% or less, and the content of the superabsorbent resin in the second absorbent member 12 is 30 wt%. % To 50% by weight.

(Production method)
Next, with reference to FIG.5 and FIG.6, the manufacturing method of the absorbent article 1 which concerns on embodiment of this invention is demonstrated. Here, the method to manufacture the absorbent article 1 is demonstrated, conveying the continuous body of the structural member of the absorbent article 1 to a longitudinal direction.

  First, a continuous body that becomes the first absorbent member 11 is formed and fed into a block shape by the first absorbent member spreader 110. Next, in a plan view, using the compression roll 140, a continuous body that is the second absorbent member 12 formed and fed by the second absorbent member stacking machine 120 and the first absorbent member 11 are obtained. Secure the continuum. In this state, the absorbent body 10 including the second absorbent member 12 and the first absorbent member 11 is formed by cutting using the cutter 170.

  Next, the hot melt adhesive 60 is applied at least in the longitudinal direction to the top sheet 20 side of the first absorbing member 11 with a coating device 180. By applying the hot melt adhesive 60 in the longitudinal direction, the block shape 50 is hardly broken. FIG. 6 is a schematic diagram showing an adhesive application pattern in the method of manufacturing an absorbent article according to the embodiment of the present invention. The hot melt adhesive can be applied in a non-contact manner, and the curtain coating method and the spiral method are preferable from the viewpoint of not inhibiting the water absorption of the absorbent body 10.

  Further, in the collecting drum 210, the continuous body that is the top sheet 20 fed from the original fabric roll 200 and the original fabric roll 190 is fed from the skin contact surface side of the absorber 10 in the collecting drum 210. The continuous body joined to the continuous body to be the three-dimensional gather 40 is supplied to the absorbent body 10, and the back sheet 30 fed from the raw roll 250 from the non-skin contact surface side of the absorbent body 10 The resulting continuous body is supplied to the absorber 10 and joined together, and joined to each other at a predetermined position. The top sheet 20 and the first absorbent member 11 are bonded with the applied hot melt adhesive 60. The periphery of the top sheet is fixed by hot melt adhesive or heat sealing, and the absorbent article 1 is formed by cutting the peripheral edge with a cutter 220. Then, after folding the absorbent article 1 by the folding machine 240, the absorbent article 1 is fed to the packaging machine 230 to package a plurality of absorbent articles 1 together. In addition, the general manufacturing process used for the manufacturing method of this kind of absorbent article can be used for the arrangement | positioning process of each structure, the adhesion process of a periphery, and a cutting process.

  The following examples further illustrate the present invention. In addition, this invention is not limited to description of a following example, unless the summary is exceeded.

<Example 1>
As an absorptive article of Example 1, what has the same composition as absorptive article 1 shown in Drawing 1-Drawing 4 was produced. A short fiber thermal bond nonwoven fabric having a basis weight of 20 g / m ² and a fineness of 2.0 dtex was used as the top sheet, and a polyethylene film having a basis weight of 20 g / m ² was used as the back sheet. As the first absorbent member, an absorption of 10 g of fluff pulp with a thickness of 3 mm, a density of 0.096 g / cm ³ , and an SAP content of 20.0% by weight containing 2.5 g of a particulate superabsorbent resin. Member 11 was created. As the second absorbent member, an absorption having a thickness of 4 mm, a density of 0.105 g / cm ³ , and an SAP content of 32.1% by weight containing 8.5 g of a particulate super absorbent polymer with respect to 18 g of fluff pulp. Member 12 was created. The block shape was the pattern shown in FIG. Other characteristics such as dimensions were set to the values shown in Table 1.

<Examples 2 and 3 and Comparative Examples 1 to 5>
In other examples and comparative examples, the fluff pulp amount, the SAP amount, and the thickness, which are base materials of the absorber, were adjusted with the compositions shown in Table 1. Moreover, the absorbent article of Comparative Example 1 did not form a block shape, and the absorbent article of Comparative Example 2 was formed with grooves only in the longitudinal direction.

(Measurement of block shape)
The width and length of the block-shaped land portion of the first absorbing member, and the interval between the groove portions are photographed from the top of the first absorbing member, and using Win ROOF (manufactured by Mitani Corporation) which is image analysis software Image processing was performed and measured. In addition, the measured value was taken as the average value of what was performed about all N = 3 samples.

(Thickness and density)
The thicknesses of the first absorbent member and the second absorbent member were measured using a thickness gauge (a dial thickness gauge “PEACOCK” manufactured by Ozaki Seisakusho). The measurement conditions were a measurement load of 250 gf, a probe diameter of 30 mm, a sample was placed between the probe and the measurement table, and the gauge when the probe was lowered at a speed of 1 mm or less per second was read. In addition, the density was expressed by a volume cm ³ per unit g by dividing the thickness by the basis weight measured based on JIS P8124. The basis weight, thickness, and density were measured after maintaining the equilibrium state under the temperature and humidity conditions (23 ± 1 ° C., 50 ± 2% RH) specified in JIS P8111.

(Absorption rate)
A cylindrical measuring jig with a weight of 755.6 g and a bottom area of 16.8 cm ² with a hole with an inner diameter of 19 mm in the center is placed on the center of the sample of the absorbent article 1 and 9% from the hole at the top of the measuring jig. 40 ml of physiological saline was injected. The time from when the 9% physiological saline contacted the absorbent article 1 until the 9% physiological saline was completely sucked into the edge of the jig central hole was measured, and this was taken as the measured value of the absorption rate. The absorption rate was the average of those obtained for N = 3 samples. The shorter the absorption rate, the better the absorption performance.

(Reverse flow rate)
After injecting 200 mL of 9% physiological saline into the sample center of the absorbent article 1 at a time, the sample was allowed to stand for 10 minutes, placed on a filter paper (No. 2 filter paper manufactured by ADVANTEC, diameter 55 mm), and a load of 35 gf / cm ² was applied. It was left for 1 minute. After 1 minute, the weight of the filter paper was measured, and the weight of the original filter paper was subtracted to obtain the measured value of the reverse flow rate. The reverse flow rate was an average value obtained for N = 3 samples. The smaller the liquid return amount, the better the absorption performance.

(sensory evaluation)
About top sheet wrinkles, 20 adult women in their 30s to 60s wear absorbent samples of each sample, and “(a) top sheet wrinkles are difficult to move” or “(b) neither” , “(C) The top sheet is easy to lean” is selected. When the evaluation of (a) is 15 to 20 people, it is indicated as “none”, when it is 10 to 14 people, “a little”, and when the evaluation of (a) is 0 to 9 people, it is indicated as “present”.

  In addition, with regard to fit, 20 adult women in their 30s to 60s wear the absorbent articles of each sample, and “(a) easy to fit”, “(b) neither”, “(c ) “It's hard to fit” was selected. When the evaluation of (a) is 18 to 20 people, “◎”, when it is 13 to 17 people, “◯”, when (a) is 8 to 12 people, “△”, and (a) evaluation When “0” to “7” are indicated by “x”.

  As mentioned above, although this invention was demonstrated using embodiment, it cannot be overemphasized that the technical scope of this invention is not limited to the range as described in the said embodiment and embodiment. It will be apparent to those skilled in the art that various modifications or improvements can be made to the above embodiment. Further, it is apparent from the description of the scope of claims that embodiments with such changes or improvements can also be included in the technical scope of the present invention.

DESCRIPTION OF SYMBOLS 1 Absorbent article 10 Absorber 11 1st absorbent member 12 2nd absorbent member 20 Top sheet 30 Back sheet 40 Solid gather 41 Solid gather sheet 42 Elastic elastic member 50 Block shape 51 Groove part 51X Width direction groove part 51Y Longitudinal direction Groove 52 Land 60 Adhesive 110 First absorbent member fiber spreader 120 Second absorbent member spreader 190, 200, 250 Original fabric roll 140 Compression roll 170, 220 Cutter 180 Coating device 210 Collecting drum 230 Packaging machine 240 Folding machine

Claims (4)

An absorbent article comprising: a liquid-permeable top sheet; a liquid-impermeable back sheet disposed to face the top sheet; and an absorbent body disposed between the top sheet and the back sheet. Because
The absorber includes a highly water-absorbent resin, and includes a first absorbent member and a second absorbent member provided on the non-skin contact surface side with respect to the first absorbent member,
The first absorbent member is formed in a block shape divided in the longitudinal direction and the width direction,
The second absorbent member is not formed in a block shape divided in the longitudinal direction and the width direction,
The first absorbent member has a lower superabsorbent resin content than the second absorbent member,
The first absorbent member is thinner than the second absorbent member,
The first absorbent member has a lower density than the second absorbent member;
The top sheet and the first absorbent member arranged on the skin contact surface side of the first absorbent member are integrated with at least a continuous adhesive in the longitudinal direction,
The absorbent article according to claim 1, wherein the top sheet is recessed along a longitudinal groove portion of the block shape of the first absorbent member. ^2. The absorbent article according to claim 1, wherein the top sheet is a short-fiber thermal bond nonwoven fabric having a basis weight of 20 g / m ² or more and a fineness of 1.3 dtex or more and 5.0 dtex or less.   The absorbent article according to claim 1 or 2, wherein each of the first absorbent member and the second absorbent member has a thickness of 2 mm or greater and 6 mm or less.   The first absorbent member and the second absorbent member each have a high water-absorbent resin content of 20% by weight or more and 50% by weight or less. Absorbent article according to item.

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