JP2015051185A - Absorbent article - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an absorbent article which hardly causes twists and vertical creases on a side part in a longitudinal direction of the absorbent article when being worn and improves wearing feeling.SOLUTION: A liner 1 of one embodiment according to the present invention includes a surface sheet 2, a rear surface sheet 3, and an absorber 4 which is arranged between both sheets 2, 3 and has a thickness of 2 mm or less, and has a fiber sheet 5 between the surface sheet 2 and the absorber 4. The density of the fiber sheet 5 is lower than that of the surface sheet 2. The surface sheet 2 and the fiber sheet 5 extend to the outside of both side edges 4s, 4s in a Y direction of the absorber 4 by the same width. In a plane view of the liner 1, a vertically-long oblique lattice shape 7 described by a compression part 71 is arranged in a pattern where the oblique lattice shape is aligned to make contact with the entire peripheral edge part 6 of the liner 1. The area of a region enclosed by the entire peripheral edge part 6 is larger than the area of each of the oblique lattice shapes 7.

Description

  The present invention relates to an absorbent article such as a panty liner (corimono sheet), a sanitary napkin, and an incontinence pad.

  Conventionally, absorbent articles such as panty liners and sanitary napkins in which a so-called second sheet made of a nonwoven fabric is disposed between a top sheet and an absorbent body are known (for example, Patent Document 1). In the sanitary napkin described in Patent Document 1, since the liquid guiding fiber layer is disposed as the second sheet between the top sheet and the absorbent body, the body fluid of the wearer is quickly transferred from the top sheet to the absorbent body. Can be made.

JP-A-7-328060

  However, in the sanitary napkin described in Patent Document 1, the liquid guiding fiber layer, which is a second sheet, is formed to have a width substantially the same as the width of the absorber. Therefore, in the side part along the longitudinal direction of the sanitary napkin, a step consisting of the thickness of the fiber layer for liquid introduction and the thickness of the absorbent body is formed, and the side part of the sanitary napkin is caused by the step when worn. Drowning or downspout will occur. In particular, when the technology is used in the case of a product having a small thickness, such as a panty liner, the problem is likely to be remarkable.

  Therefore, this invention is providing the absorbent article which can eliminate the fault which the prior art mentioned above has.

  The present invention comprises a top sheet, a back sheet, and an absorbent body having a thickness of 2 mm or less disposed between both sheets, and a vertically long absorbent having a fiber sheet between the top sheet and the absorbent body. The fiber sheet has a density lower than that of the top sheet, and the top sheet and the fiber sheet have the same width outward from both side edges along the longitudinal direction of the absorber. The top sheet and the fiber sheet are joined by a pattern in which a vertically long slanted lattice shape drawn in the squeezed portion is arranged in contact with the entire peripheral edge of the absorbent article in plan view. The top sheet, the back sheet, and the fiber sheet are integrally fixed at the entire peripheral edge, and the area of the region surrounded by the total peripheral edge is surrounded by the diagonal lattice shape. Area area And provides a greater absorbent article.

  ADVANTAGE OF THE INVENTION According to this invention, it is hard to generate | occur | produce the side part along the longitudinal direction of an absorbent article, or a vertical wrinkle at the time of wear, and a wear feeling improves. Moreover, the side leakage suppression of a bodily fluid is favorable.

FIG. 1 is a plan view of a panty liner according to an embodiment of the present invention as viewed from the top sheet side. 2 is a cross-sectional view taken along the line II of FIG. 3 is a cross-sectional view taken along line II-II in FIG. 4 is a cross-sectional view taken along line III-III in FIG. 5 is a cross-sectional view taken along line IV-IV in FIG.

The present invention will be described below based on preferred embodiments with reference to the drawings.
The absorbent article of the present embodiment is a panty liner, and the panty liner 1 (hereinafter also referred to as “liner 1”) of the present embodiment includes a top sheet 2 and a back surface as shown in FIGS. The sheet 3 and the absorbent body 4 having a thickness of 2 mm or less disposed between both the sheets 2 and 3 are provided, and the fiber sheet 5 is interposed between the top sheet 2 and the absorbent body 4 and is vertically long.
In the present specification, the “skin facing surface” is a surface disposed on the skin side of the wearer when worn, out of the front and back surfaces of each member such as the surface sheet 2 constituting the liner 1. The “surface” is a surface that is directed to the side opposite to the wearer's skin side during wearing, among the front and back surfaces of each member such as the surface sheet 2 constituting the liner 1.
Further, the “Y direction” shown in each figure is a direction parallel to the center line CL extending in the longitudinal direction of the liner 1. The “X direction” shown in each figure is a direction orthogonal to the center line CL, and is also the same direction as the width direction of the liner 1.

  As shown in FIGS. 1 to 2, the liner 1 of the present embodiment includes a liquid-permeable top sheet 2, a liquid-impermeable back sheet 3, and a liquid-retaining property disposed between the two and 3. An absorber 4 is provided. In addition, the liner 1 includes a fiber sheet 5 between the top sheet 2 and the absorbent body 4 that quickly transfers the wearer's body fluid from the top sheet 2 to the absorbent body 4. The liner 1A is an excretory part region A which is an area disposed opposite to the wearer's liquid discharge part (such as the vaginal opening), and a front area B which is disposed on the abdomen side of the wearer from the excretion part region A when the liner 1A is worn. And a rear region C disposed on the back side of the wearer from the excretory region A when the liner 1A is worn. The liner 1A is long in the Y direction and has a shape constricted toward the center line CL in the excretory region A.

  As shown in FIG. 2, each of the topsheet 2 and the fiber sheet 5 extends outwardly with the same width from both side edges 4 s and 4 s along the longitudinal direction (Y direction) of the absorbent body 4. Specifically, the top sheet 2, the back sheet 3 and the fiber sheet 5 included in the liner 1A each have a vertically long shape in the Y direction, as shown in FIG. Each of the front region B and the rear region C has a contour that matches the contour of the main body of the liner 1A. Thus, the top sheet 2, the back sheet 3, and the fiber sheet 5 are formed in the same shape and size in the liner 1A, and are all long in the Y direction and are on the side of the center line CL in the excretory region A. It has a shape wrapped in In the liner 1A, the top sheet 2 and the fiber sheet 5 are formed in the same size in the longitudinal direction (Y direction) and the width direction (X direction), and are formed in the same shape and size. However, it should just be formed in the same width at least in the width direction (X direction).

  And the surface sheet 2, the back surface sheet 3, and the fiber sheet 5 are integrally fixed by the whole peripheral part 6, as shown in FIG. Specifically, in the liner 1 </ b> A, the fiber sheet 5 covers the skin facing surface of the absorbent body 4 that is long in the longitudinal direction (Y direction), and the top sheet 2 further covers the skin facing surface of the absorbent body 4. 5, the back sheet 3 covers the non-skin facing surface of the absorbent body 4 that is long in the longitudinal direction (Y direction), and those extensions extending from the outer peripheral edge of the absorbent body 4. The protruding portion is integrally fixed by an adhesive such as hot pressing, ultrasonic sealing, or hot melt to form a peripheral seal portion on the entire peripheral edge 6.

  As the surface sheet 2, it can be used without particular limitation as long as it is normally used for an absorbent article such as a panty liner. For example, a hydrophilic and liquid-permeable nonwoven fabric can be used. Specifically, from the viewpoint of absorbability for quickly absorbing excreted bodily fluid and transmitting it to the absorber 4, and from the viewpoint of good touch, hydrophilic thermal bond nonwoven fabric, air-through nonwoven fabric, hydrophilic spunlace weave A cloth or the like is preferable.

The back sheet 3 can be used without particular limitation as long as it is usually used for absorbent articles such as panty liners. For example, a moisture permeable film alone or a laminate of a moisture permeable film and a nonwoven fabric, An aqueous nonwoven fabric or the like can be used. From the viewpoint of quickly removing the humidity (so-called wearing humidity) between the absorbent article such as a panty liner and the body, it is most effective to impart moisture permeability and further breathability to the back sheet 3. is there.
Here, the “moisture permeability” is a property of diffusing water vapor from the high humidity side to the low humidity side according to the second law of thermodynamics without airflow movement as in the concept disclosed in JIS Z0208 or ASTM E398. It is a property expressed in a porous film having extremely small pores and a non-porous film highly compatible with water. On the other hand, “breathability” is literally a property of breathing, and is typically a property of airflow passing through like various fabrics.

  As a constituent material of the fiber sheet 5, as long as it is normally used for absorbent articles such as panty liners, it can be used without particular limitation, and for example, an air-through nonwoven fabric can be used.

  The fiber sheet 5 is preferably larger in thickness than the surface sheet 2 from the viewpoints of compression recovery in the thickness direction and liquid return to the skin side after absorbing body fluid. The thickness is more preferably 1.5 times or more and 4 times or less, and particularly preferably 2 times or more and 3 times or less the thickness of the topsheet 2. Specifically, the thickness of the fiber sheet 5 is preferably 0.4 mm or more and 4 mm or less, and more preferably 0.6 mm or more and 1.5 mm or less. The thickness of the topsheet 2 is preferably 0.1 mm or more and 1 mm or less, and more preferably 0.2 mm or more and 0.5 mm or less.

Moreover, the density of the fiber sheet 5 is lower than the density of the surface sheet 2, and is 30% or more and 70% or less of the density of the surface sheet 2 from the viewpoint of liquid returnability to the skin side after absorbing the body fluid. It is preferable that the density is 40% or more and 60% or less of the density of the topsheet 2. Specifically, the density of the fiber sheet 5 is preferably 0.03 g / cm ³ or more and 0.08 g / cm ³ or less, and preferably 0.04 g / cm ³ or more and 0.06 g / cm ³ or less. Further preferred. The density of the surface sheet 2 is preferably 0.07 g / cm ³ or more 0.13 g / cm ³ or less, and more preferably not more than 0.08 g / cm ³ or more 0.1 g / cm ^3.

  Furthermore, the fiber sheet 5 is preferably such that the fiber diameter of the constituent fibers of the fiber sheet 5 is larger than the fiber diameter of the constituent fibers of the top sheet 2 from the viewpoint of compression recovery in the thickness direction. The fiber diameter is preferably 1.3 times to 4 times the fiber diameter of the constituent fiber, and more preferably 1.5 times to 2.7 times the fiber diameter of the constituent fiber of the topsheet 2. Specifically, the fiber diameter of the constituent fibers of the fiber sheet 5 is preferably 3 dtex or more and 10 dtex or less, and more preferably 4 dtex or more and 8 dtex or less. The fiber diameter of the constituent fibers of the topsheet 2 is preferably 1 dtex or more and 3 dtex or less, and more preferably 1.2 dtex or more and 2.4 dtex or less.

  In the liner 1 </ b> A, the front sheet 2, the back sheet 3, and the fiber sheet 5 described above are configured to include heat-sealing fibers. In particular, the top sheet 2 and the fiber sheet 5 contain latent crimpable heat-sealing fibers in which crimps are developed. The heat-sealed fiber in which crimps are manifested is in a coiled crimped state. Examples of the latent crimpable heat-fusible fiber include an eccentric core-sheath type composite fiber or a side-by-side type composite fiber containing two types of thermoplastic polymer materials having different shrinkage rates as components. As an example of two types of thermoplastic polymer materials having different shrinkage rates, for example, a combination of an ethylene-propylene random copolymer (EP) and polypropylene (PP) is preferably exemplified.

  The absorbent body 4 can be used without particular limitation as long as it is normally used for absorbent articles such as panty liners. For example, polymer sheets that are various known sheet-like absorbent materials are used. A fiber aggregate such as pulp fiber (may be a non-woven fabric) or an absorbent core formed by holding particles of a water-absorbing polymer on the core is covered with a core wrap sheet made of water-permeable thin paper or non-woven fabric. Can be used.

  The absorbent body 4 in the liner 1A extends from the front region B to the rear region C as shown in FIGS. 1 and 2, and is substantially rectangular in the longitudinal direction (Y direction) in plan view. have. In liner 1A, absorber 4 is formed using a polymer sheet, and is formed by folding the polymer sheet. Specifically, both side portions along the longitudinal direction (Y direction) of a rectangular sheet that is long in the longitudinal direction (Y direction) are folded back to the non-skin facing surface side, and the side edge portions of the both side portions are connected to each other. Are folded so as to overlap each other to form a substantially rectangular absorbent body 4.

  From the viewpoint of reducing the uncomfortable feeling when the fiber sheet 5 is attached due to a step due to the thickness of the absorbent body, the thickness of the fiber sheet 5 is preferably larger than the thickness of the absorbent body 4. The thickness is preferably 101% or more and 180% or less, and more preferably 120% or more and 150% or less of the thickness of the absorber 4. Specifically, the thickness of the absorber 4 is 2 mm or less, preferably 0.3 mm or more and 2 mm or less, and more preferably 0.5 mm or more and 1.5 mm or less. In addition, the thickness of the fiber sheet 5 and the absorber 4 is measured with the following method, respectively.

<Method for measuring thickness>
The absorber or fiber sheet, which is the object to be measured, is placed in a horizontal place so as not to be wrinkled or bent, and the thickness under a load of 5 cN / cm ² is measured. A thickness meter PEACOCK DIAL UPRIGHT GAUGES R5-C (manufactured by OZAKI MFG.CO.LTD.) Was used for measuring the thickness in the present invention. At this time, a circular plate or a square plate (acrylic plate having a thickness of about 5 mm) in a plan view is disposed between the tip of the thickness meter and the measurement portion of the measurement object, and the load is 5 cN / cm ² . Adjust the size of the plate so that

  As shown in FIGS. 1 to 2, the top sheet 2 and the fiber sheet 5 have a vertically elongated diagonal lattice shape 7 in the Y direction drawn in the compressed portion 71 in a plan view and are formed on the entire peripheral edge portion 6 of the liner 1 </ b> A. They are joined by a pattern that is lined up so as to touch. And the pressing part 71 is fuse | melted and formed by thermally pressing the surface sheet 2 and the fiber sheet 5 containing a heat-fusion fiber. In the liner 1 </ b> A, each of the four sides forming each of the vertically elongated diagonal lattice shapes 7 in the Y direction is formed by a plurality of dot-shaped compressed portions 71. This will be specifically described below. In the liner 1 </ b> A, a dot-like linear shape 70 is formed by a plurality of uniform circular squeezed portions 71. In addition, there is no restriction | limiting in particular in the shape of the pressing part 71, For example, a continuous line, a dot-like line shape, an intermittent line shape, etc. may be sufficient, and a dot-like line | wire is especially by the several pressing part 71. When the shape or intermittent linear shape is formed, the shape of each pressing part 71 may be a perfect circle, an ellipse, a polygon, or the like. Moreover, the size of each pressing part 71 may be uniform or non-uniform.

  More specifically, as shown in FIG. 1, the dot-like line 70 of the liner 1 </ b> A extends from the right front of the front area B to the left rear of the rear area C and intersects the center line CL. A plurality of dot-like first linear portions 70a and a plurality of dot-like second linear portions that intersect and extend from the left diagonal front of the front region B to the right diagonal rear of the rear region C with respect to the center line CL 70b. The intersection angle α between the plurality of dot-like lines 70a and the plurality of dot-like lines 70b is preferably 50 ° or more, more preferably 55 ° or more, and 70 ° or less. Preferably, it is preferably 65 ° or less, specifically 50 ° or more and 70 ° or less, and more preferably 55 ° or more and 65 ° or less.

  The intervals between adjacent dot-like lines 70a, 70a may be equal or unequal, but are evenly arranged in the liner 1A. The interval between adjacent dot-like linear shapes 70a, 70a is preferably 7 mm or more and 12 mm or less, and more preferably 8 mm or more and 11 mm or less. The interval between the adjacent dot-like lines 70b and 70b may be equal or non-uniform, but the liner 1A is equally arranged. The distance between adjacent dot-like linear lines 70b, 70b is preferably 7 mm or more and 11 mm or less, and more preferably 8 mm or more and 11 mm or less.

  In the liner 1 </ b> A, the dot-like lines 70 a and 70 b are formed such that each pressing portion 71 is provided separately and independently at regular intervals. Each pressing portion 71 of the liner 1A has a perfect circle shape. In the liner 1A, the diameter of each pressing portion 71 and the interval between the adjacent pressing portions 71 and 71 constituting the same dot-like linear shape 70a and 70b. Are formed in the same size. Specifically, each pressing part 71 has a diameter of preferably 0.5 mm or more and 3 mm or less, and more preferably 1 mm or more and 2 mm or less. Moreover, it is preferable that the space | interval of the adjacent pressing parts 71 and 71 which comprise the same dot-like linear shape 70a, 70b is 0.5 mm or more and 3 mm or less, and it is still more preferable that they are 1 mm or more and 2 mm or less.

  In the liner 1A, the dot-like linear shapes 70a and 70b in which the compressed parts 71 are separately provided at regular intervals are regularly intersected at a uniform acute crossing angle α. Yes. Therefore, in plan view, each of the vertically slanted lattice shapes 7 is formed in a rhombus that is long in the same Y direction so that the slanted lattice shape 7 of the rhombus is in contact with the entire peripheral edge portion 6 of the liner 1A. It is arranged in a regular pattern. Therefore, the area S1 of each diagonal lattice shape 7 is formed identically. The area S1 of the diagonal lattice shape 7 means the area of a region surrounded by four sides forming the oblique lattice shape 7.

  As shown in FIG. 3 to FIG. 5, each rhombic diagonal lattice shape 7 is formed in a convex shape on the skin facing surface side in a cross-sectional view of the layer composed of the surface sheet 2 and the fiber sheet 5 fused and integrated. It is formed in a raised shape. The height h1 (see FIGS. 3 and 4) of the layer at the center of the oblique lattice shape 7 is such that the dot-like lines 70a and 70b that form the four sides of the oblique lattice shape 7 are formed from the viewpoint of body fluid absorption and diffusibility. It is higher than the height h2 (see FIG. 5) of the layer at an intermediate position between adjacent embossed portions 71, 71 constituting the same. The height h1 at the center of the oblique lattice shape 7 is preferably 1.1 to 2 times the height h2 at the intermediate position between the adjacent embossed portions 71 and 71, and 1.2 to 1 More preferably, it is 6 times or less. Specifically, the height h1 at the center of the diagonal lattice shape 7 is preferably 0.5 mm or more and 2 mm or less, and more preferably 0.7 mm or more and 1.5 mm or less. Further, the height h2 at the intermediate position between the adjacent embossed portions 71, 71 is preferably 0.3 mm or greater and 1.2 mm or less, and more preferably 0.5 mm or greater and 1 mm or less. Note that the height h1 at the center of the diagonal lattice shape 7 and the height h2 at the intermediate position between the adjacent embossed portions 71, 71 are the above-described layers composed of the top sheet 2 and the fiber sheet 5. Measured in the same manner as the thickness of the absorbent body and the fiber sheet.

  In the present invention, the area S2 of the region surrounded by the entire peripheral edge 6 is formed larger than the area S1 of each diagonal lattice shape 7. Specifically, the ratio of the area of one diagonal lattice shape 7 to the area S2 of the region surrounded by the entire peripheral edge portion 6 is 0. 0 from the viewpoint of reducing difficulty and improving fit to the body. It is preferably 4% or more and 2% or less, and more preferably 0.5% or more and 1% or less.

  In the liner 1, a fixing member 8 that fixes the liner 1 to clothing is provided on the non-skin facing surface of the back sheet 3. The fixing member 8 is formed by applying an adhesive. The fixing member 8 is formed in a rectangular shape that is long in the longitudinal direction (Y direction) when the liner 1 is viewed in plan from the back sheet 3 side.

  The adhesive that forms the fixing member 8 can be used without particular limitation as long as it is normally used for absorbent articles such as panty liners. For example, a hot melt adhesive can be used. Examples of the hot melt adhesive include blocks such as styrene-isoprene-styrene block copolymer (SIS), styrene-butadiene-styrene block copolymer (SBS), and styrene-ethylene-butylene-styrene copolymer (SEBS). Copolymer-based hot melt adhesives may be mentioned.

The effect at the time of using the liner 1 of embodiment of this invention mentioned above is demonstrated.
In the liner 1, as shown in FIGS. 1 and 2, each of the top sheet 2 and the fiber sheet 5 has both side edges 4 s along the longitudinal direction (Y direction) of the absorbent body 4 having the same width and a thickness of 2 mm or less. It extends outward from 4s. Moreover, the density of the fiber sheet 5 is lower than that of the top sheet 2. Therefore, in the side part along the longitudinal direction (Y direction) of the liner 1, it is difficult to form a step composed of the thickness of the fiber sheet 5 and the thickness of the absorbent body 4, and the side part is bent due to the step when worn. Is unlikely to occur. In particular, in the liner 1, since the thickness of the fiber sheet 5 is larger than the thickness of the absorbent body 4, a step composed of the thickness of the fiber sheet 5 and the thickness of the absorbent body 4 is difficult to be formed. The side portion is more difficult to bend. In this way, if the side portion is less likely to sag, the lateral leakage of body fluid is better suppressed.

  Further, in the liner 1, as shown in FIG. 1, the top sheet 2 and the fiber sheet 5 are integrally fixed to each other at the entire peripheral edge portion 6, and are vertically slanted drawn in the embossed portion 71 in plan view. The lattice shape 7 is joined by a pattern arranged so as to be in contact with the entire peripheral edge portion 6. Furthermore, the area of the region surrounded by the entire peripheral edge 6 is larger than the area of each diagonal lattice shape 7. Therefore, when the liner 1 is worn, the vertical sheet is less likely to occur in the top sheet 2. In this way, when vertical warp is less likely to occur, the lateral leakage of body fluid is better suppressed.

  Further, in the liner 1, as shown in FIG. 1, when viewed in a plan view, a vertically long diagonal lattice shape 7 includes a plurality of dot-like linear shapes 70 a and a plurality of dot-like linear shapes 70 b intersecting. The slanted lattice shape 7 is formed in a pattern arranged in contact with the entire peripheral edge 6 of the liner 1A. Therefore, when the liner 1 is worn, the liner 1 easily bends along the plurality of dot-like linear shapes 70a and the dot-like linear shapes 70b and easily follows the movement of the body. In addition, body fluid is likely to diffuse in the longitudinal direction (Y direction), and side leakage is unlikely to occur. In particular, in the liner 1, the dot-like lines 70 a and 70 b are formed by a plurality of embossed portions 71 being regularly provided at regular intervals and independently, and excessively dot-like lines. The liner 1 is prevented from bending along the shapes 70a and 70b, and it is easier to follow the movement of the body.

  In the liner 1, as shown in FIG. 2, the fiber sheet 5 has a density lower than that of the top sheet 2, and the thickness of the fiber sheet 5 is larger than the thickness of the top sheet 2. Is formed. The area of the region surrounded by the entire peripheral edge 6 is larger than the area of each diagonal lattice shape 7. Therefore, when the liner 1 is worn, the compression recovery property of each diagonal lattice shape 7 portion becomes good, the body fluid does not easily return, the dry feeling is improved, and the usability is improved. Moreover, since the fiber diameter of the constituent fiber of the fiber sheet 5 is larger than the fiber diameter of the constituent fiber of the surface sheet 2, when the liner 1 is worn, the liquid return of the body fluid is less likely to occur, and the dry feeling is further improved.

  Further, as shown in FIG. 2, the liner 1 is formed by folding the absorbent material in the form of a sheet of the absorbent body 4, so that the rigidity is improved. Is less likely to occur and the usability is improved.

The present invention is not limited to the embodiment described above, and can be modified as appropriate.
For example, in the liner 1 described above, as shown in FIG. 1, in a plan view, the vertically long diagonal lattice shape 7 is formed in a pattern arranged so as to be in contact with the entire peripheral edge portion 6 of the liner 1A. Even in the region of the entire peripheral edge 6, the diagonal lattice shape 7 may be formed side by side so as to overlap the entire peripheral edge 6.

  Further, in the liner 1 described above, as shown in FIG. 1, a plurality of embossed portions 71 are regularly provided at regular intervals and separately, and dot-like linear shapes 70a and 70b are formed. However, the embossed portion 71 may be a continuous line. At that time, the embossed portion 71 composed of continuous lines extends from the right diagonal front of the front area B to the left diagonal rear of the rear area C with respect to the center line CL, and the central line CL And a plurality of continuous lines extending from the diagonally left front of the front area B to the diagonally right rear of the rear area C, and the continuous diagonal lines 7 are regularly formed by intersecting these continuous lines. It will be arranged in a lined-up pattern.

  The absorbent article of the present invention can be suitably used for, for example, sanitary napkins, incontinence pads, and the like other than panty liners.

  The following absorbent articles are disclosed regarding the embodiment described above.

<1>
A vertically long absorbent article comprising a top sheet, a back sheet, and an absorber having a thickness of 2 mm or less disposed between both sheets, and having a fiber sheet between the top sheet and the absorber. The density of the fiber sheet is lower than the density of the surface sheet, and the surface sheet and the fiber sheet are extended outwardly with the same width from both side edges along the longitudinal direction of the absorber. The top sheet and the fiber sheet are joined by a pattern in which the oblique lattice shape vertically long in the longitudinal direction is arranged in contact with the entire peripheral edge of the absorbent article, as viewed in a plan view. The top sheet, the back sheet, and the fiber sheet are integrally fixed at the entire peripheral edge, and the area of the region surrounded by the total peripheral edge is more than the area of each diagonal lattice shape. large Osamusei goods.
<2>
The absorbent article according to <1>, wherein the fiber sheet has a thickness greater than that of the top sheet.
<3>
The thickness of the said fiber sheet is an absorbent article as described in said <2> which is 1.5 times or more and 4 times or less of the thickness of the said surface sheet.
<4>
The said fiber sheet is an absorbent article as described in any one of said <1>-<3> whose fiber diameter of the constituent fiber is larger than the fiber diameter of the constituent fiber of the said surface sheet.
<5>
The absorbent article according to <4>, wherein the fiber diameter of the constituent fibers of the fiber sheet is 1.3 times or more and 4 times or less the fiber diameter of the constituent fibers of the top sheet.
<6>
The absorbent sheet according to any one of <1> to <5>, wherein the fiber sheet has a thickness larger than a thickness of the absorber.
<7>
The absorbent article according to <6>, wherein the thickness of the fiber sheet is 101% or more and 180% or less of the thickness of the absorber.
<8>
The top sheet and the fiber sheet are each configured to include heat-fusible fibers, and the pressing parts are formed by hot pressing, and each of the four sides forming each of the diagonal lattice shapes. However, The absorbent article as described in any one of said <1>-<7> currently formed in the said several dot-shaped pressing part.
<9>
The diagonal lattice shape includes a plurality of first linear portions extending from the right front of the front region to the left rear of the rear region with respect to the longitudinal center line, and from the left front of the front region with respect to the center line. A plurality of second linear portions extending diagonally right rearward of the rear region are configured to intersect each other, and an intersection angle between the first linear portion and the second linear portion is 50 ° or more. The absorbent article according to any one of <1> to <8>, which is 70 ° or less.
<10>
The absorbent article according to any one of <1> to <9>, wherein the linear portions constituting the sides of the diagonal lattice are evenly spaced between adjacent linear portions. .
<11>
The absorbent article according to any one of <1> to <10>, wherein the absorbent body is formed by folding a sheet-like absorbent material.
<12>
The area of each of the oblique lattice shapes is the same, and the ratio of the area of the one oblique lattice shape in the area of the region surrounded by the entire peripheral edge is 0.4% or more and 2% or less The absorbent article as described in any one of <1>-<11>.
<13>
The absorbent article according to any one of the above items <1> to <12>, wherein an interval between the adjacent compressed parts constituting the same linear part is 0.5 mm or more and 3 mm or less.
<14>
Absorbent article as described in any one of said <1>-<13> whose said pressing part is a perfect circle.
<15>
The said diagonal grid | lattice shape is an absorbent article as described in any one of said <1>-<14> which protrudes convexly on the skin opposing surface side.
<16>
The height at the center of the oblique lattice shape is higher than the height of the layer at an intermediate position between adjacent embossed portions forming the dot-like line forming the four sides of the oblique lattice shape, <15 > The absorbent article as described.
<17>
The thickness of the said fiber sheet is an absorbent article as described in any one of said <1>-<16> which is 0.4 mm or more and 4 mm or less.
<18>
The thickness of the said surface sheet is an absorbent article as described in any one of said <1>-<17> which is 0.1 mm or more and 1 mm or less.
<19>
The absorbent article according to any one of <1> to <18>, wherein the absorber has a thickness of 0.3 mm to 2 mm.
<20>
The density of the said fiber sheet is an absorbent article as described in any one of said <1>-<19> which is 30% or more and 70% or less of the density of the said surface sheet.
<21>
The absorbent article according to the density of the fiber sheet any one of the at most 0.07 g / cm ³ or more ^{0.13g / cm 3 <1> ~} <20>.
<22>
The absorbent article according to any one of <1> to <22>, wherein a fiber diameter of constituent fibers of the fiber sheet is 3 dtex or more and 10 dtex or less.
<23>
The absorbent article according to any one of <1> to <22>, wherein a fiber diameter of a constituent fiber of the surface sheet is 1 dtex or more and 3 dtex or less.
<24>
The absorbent article according to any one of <1> to <23>, wherein the absorbent article is a panty liner.

1 Panty liner (absorbent article)
2 Top sheet 3 Back sheet 4 Absorber Side edge 5 along the longitudinal direction (Y direction) of the absorber Fiber sheet 6 Full peripheral edge 7 Oblique lattice shape 70, 70a, 70b Dot-like linear 71 Embossed part 8 Fixing member A Excretion area B Front area C Rear area CL Center line extending in the longitudinal direction

Claims (7)

A vertically long absorbent article comprising a top sheet, a back sheet, and an absorber having a thickness of 2 mm or less disposed between both sheets, and having a fiber sheet between the top sheet and the absorber. ,
The fiber sheet has a density lower than that of the top sheet,
Each of the top sheet and the fiber sheet extends with the same width outward from both side edges along the longitudinal direction of the absorber,
The top sheet and the fiber sheet are joined together by a pattern in which the oblique lattice shape that is vertically elongated in the longitudinal direction is arranged in contact with the entire peripheral edge of the absorbent article, as viewed in plan. ,
The top sheet, the back sheet and the fiber sheet are integrally fixed at the entire peripheral edge,
The area of the region surrounded by the entire peripheral edge is an absorbent article that is larger than the area of each of the oblique lattice shapes.   The absorbent article according to claim 1, wherein the fiber sheet has a thickness greater than that of the top sheet.   The absorbent article according to claim 1 or 2, wherein the fiber sheet has a fiber diameter of a constituent fiber larger than a fiber diameter of a constituent fiber of the top sheet.   The absorbent article according to any one of claims 1 to 3, wherein a thickness of the fiber sheet is larger than a thickness of the absorber. Each of the surface sheet and the fiber sheet is configured to include a heat-fusible fiber,
The pressing part is formed by hot pressing,
The absorbent article according to any one of claims 1 to 4, wherein each of the four sides forming each of the oblique lattice shapes is formed by a plurality of dot-shaped pressing parts.   The absorbent article according to any one of claims 1 to 5, wherein the absorbent body is formed by folding a sheet-like absorbent material. The area of each of the diagonal lattice shapes is the same,
The absorption according to any one of claims 1 to 6, wherein a ratio of an area of the one oblique lattice shape in an area surrounded by the entire peripheral edge portion is 0.4% or more and 2% or less. Sex goods.

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