Absorbent articles

Abstract

To provide an absorbent article that prevents liquid from leaking from the edges of the top sheet. [Solution] The absorbent article comprises a top sheet, a back sheet, and an absorbent body. The top sheet is a semi-hydrophilic nonwoven fabric. The back sheet is a hydrophobic sheet placed on the top sheet at a predetermined interval. The absorbent body is placed between the top sheet and the back sheet. In an absorbent article where the top sheet is a semi-hydrophilic nonwoven fabric, the time it takes for a liquid that comes into contact with the surface of the top sheet to penetrate and spread is longer than when a hydrophilic nonwoven fabric is used for the top sheet. Therefore, most of the liquid that comes into contact with the surface of the top sheet passes through the top sheet and reaches the absorbent sheet before it can penetrate and spread along the plane. Thus, with an absorbent article, the liquid that comes into contact with the surface of the top sheet penetrates along the plane before it passes through the top sheet, and leakage from the edges is suppressed.

Description

Technical Field

[0001] The present disclosure relates to absorbent articles.

Background Art

[0002] Absorbent articles that include an absorber and absorb liquids such as urine mainly composed of water are known. Patent Document 1 (Japanese Unexamined Patent Application Publication No. 2020-121092) discloses an absorbent article in which a hydrophobic backsheet (liquid-impermeable sheet), an absorber, and a topsheet (liquid-permeable sheet) formed of a hydrophilic nonwoven fabric are arranged in this order.

Summary of the Invention

Problems to be Solved by the Invention

[0003] Most of the liquid that contacts the surface of the topsheet penetrates the topsheet and then passes through the topsheet in the thickness direction and is absorbed by the absorber. When the topsheet is formed of a hydrophilic nonwoven fabric, there is a problem that a part of the liquid that contacts the surface of the topsheet penetrates along the plane direction of the topsheet before passing through and leaks from the edge.

[0004] An object of the present disclosure is to provide an absorbent article that suppresses leakage of liquid from the edge of the topsheet.

Means for Solving the Problems

[0005] The absorbent article of the first aspect includes a topsheet, a backsheet, and an absorber. The topsheet is a semi-hydrophilic nonwoven fabric. The backsheet is a hydrophobic sheet arranged at a predetermined interval from the topsheet. The absorber is arranged between the topsheet and the backsheet.

[0006] In absorbent articles where the top sheet is a semi-hydrophilic nonwoven fabric, the time it takes for liquid that comes into contact with the surface of the top sheet to penetrate and spread is longer than when a hydrophilic nonwoven fabric is used for the top sheet. Therefore, much of the liquid that comes into contact with the surface of the top sheet passes through the top sheet and reaches the containment sheet before it can penetrate and spread along the plane. Thus, with absorbent articles, the liquid that comes into contact with the surface of the top sheet penetrates along the plane before it passes through the top sheet, and leakage from the edges is suppressed.

[0007] The absorbent article of the second perspective is the absorbent article of the first perspective, wherein the top sheet is formed of a semi-hydrophilic nonwoven fabric in a first strip-shaped region of a predetermined width including the edges, and the area other than the first strip-shaped region is formed of a hydrophilic nonwoven fabric.

[0008] With this absorbent material, liquids that come into contact with the surface of the top sheet can quickly penetrate the hydrophilic nonwoven fabric. Therefore, this absorbent material can effectively suppress leakage of liquids from the edges.

[0009] The absorbent article of the third perspective is an absorbent article of the first or second perspective, wherein the top sheet is formed of a hydrophobic sheet in a second band-shaped region, which is a band-shaped region of a predetermined width including the edges, and the area other than the second band-shaped region is formed of a semi-hydrophilic nonwoven fabric.

[0010] According to this absorbent article, the hydrophobic sheet forming the second zone suppresses leakage from the edges of the liquid in contact with the surface of the top sheet. Therefore, this absorbent article can effectively suppress leakage from the edges of the liquid.

[0011] The absorbent article of the fourth perspective is an absorbent article of any of the first, second, or third perspectives, wherein a strip-shaped region of a predetermined width is directly joined from the edge of the back sheet to the opposing surface of the top sheet.

[0012] This absorbent material prevents liquid that has permeated components other than the top sheet and back sheet from leaking out from the edges through the joint between the top sheet and back sheet.

[0013] The absorbent articles of the fifth perspective are absorbent articles of any of the first, fourth, or fourth perspectives, The absorbent material is housed in multiple compartments made of nonwoven fabric. The compartments are positioned apart from each other between the top sheet and the back sheet.

[0014] Because the absorbent material is housed in multiple compartments that are spaced apart from each other, this absorbent article prevents the absorbent material from being unevenly distributed between the top sheet and the back sheet.

[0015] The absorbent article of the sixth perspective is the fifth absorbent article, wherein the first storage section adjacent to the edge of the absorbent article has a smaller distance between it and another adjacent storage section, the second storage section, in the direction of extension of the edge, than the distance between it and the third storage section, which is a storage section other than the second storage section.

[0016] In this absorbent article, a portion of the absorbent material with increased volume forms a linear section where absorbent material is connected linearly with other adjacent absorbent material. As a result, this absorbent article can hold more liquid while suppressing uneven distribution of absorbent material, and can effectively prevent liquid from leaking from the edges.

[0017] The seventh aspect of the absorbent article is the fifth or sixth aspect of the absorbent article, wherein the containment compartments are arranged in a plan view along a first direction and a second direction intersecting the first direction, and the distance between adjacent containment compartments in the first direction is smaller than the distance between yet another adjacent containment compartment in the second direction.

[0018] In this absorbent article, a portion of the absorbent material with increased volume forms a linear section in which absorbent materials are connected linearly together with other adjacent absorbent materials in the first direction. As a result, this absorbent article can hold more liquid while suppressing uneven distribution of absorbent materials, and can effectively prevent liquid from leaking from the edges.

[0019] The absorbent article according to the eighth aspect is the absorbent article according to the seventh aspect, and the first direction intersects the orientation direction of the non-woven fabric included in the topsheet.

[0020] According to this absorbent article, the penetration of the liquid held in the absorber to the edge along the orientation direction of the non-woven fabric included in the topsheet is suppressed.

Brief Description of the Drawings

[0021] [Figure 1] It is a plan view of the absorbent article 100 according to one embodiment. [Figure 2] It is a cross-sectional view of the absorbent article 100 cut along A-A' in FIG. 1. [Figure 3] It is an enlarged view of the portion surrounded by the frame B in FIG. 1. [Figure 4] It is a plan view of the absorbent article 100 showing the state where the absorber 30 is swollen. [Figure 5] It is a plan view of the absorbent article 100 according to Modification A and Modification B. [Figure 6] It is a plan view of the absorbent article 100 according to Modification C. [Figure 7] It is an enlarged view of the portion surrounded by the frame C in FIG. 6. [Figure 8] It is a plan view of the absorbent article 100 according to Modification C showing the state where the absorber 30 is swollen. [Figure 9] It is a plan view of the absorbent article 100 according to Modification D showing the state where the absorber 30 is swollen. [Figure 10] It is a plan view of the absorbent article 100 according to another example of Modification D showing the state where the absorber 30 is swollen.

Modes for Carrying Out the Invention

[0022] <First Embodiment> (1) Overall Configuration Figure 1 is a plan view of an absorbent article 100 according to one embodiment. Figure 2 is a cross-sectional view of the absorbent article 100 taken along line A-A' in Figure 1. Figure 3 is an enlarged view of the area enclosed by frame B in Figure 1. The absorbent article 100 comprises a top sheet 10, a containment sheet 20, an absorbent body 30, a cover sheet 40, and a back sheet 50. The absorbent article 100 absorbs liquids such as urine, which are mainly composed of water, with the absorbent body 30. For convenience, a portion of the top sheet 10 is shown as transparent in Figure 1.

[0023] The absorbent article 100 is a pet sheet. The absorbent article 100 may also be used as a diaper, toilet training pants, incontinence pad, sanitary napkin, sweat pad, portable toilet, etc.

[0024] In this embodiment, the absorbent article 100 is formed to be rectangular in a plan view. In the following description, any two parallel edges 100e of the absorbent article 100 in a plan view will be called the first edge 100e1, and two parallel edges perpendicular to the first edge 100e1 will be called the second edge 100e2 (see arrows in Figure 1).

[0025] (2) Detailed configuration (2-1) Top sheet 10 The top sheet 10 is a sheet into which the liquid to be absorbed by the absorbent article 100 is absorbed. The top sheet 10 is a sheet containing a semi-hydrophilic nonwoven fabric. The top sheet 10 is typically positioned on the side facing the pet's skin during use. In this embodiment, the top sheet 10 is formed in a rectangular shape using a semi-hydrophilic nonwoven fabric.

[0026] In this specification, hydrophilicity, semi-hydrophilicity, and hydrophobicity are defined by the liquid strike-through time (liquid strike-through time [seconds]) measured using the method specified in ISO 9073-8:1995 (Textiles - Test methods for nonwovens - Part 8: Determination of liquid strike-through time (simulated urine)). Specifically, materials with a liquid strike-through time of less than 1 second are referred to as hydrophilic (liquid permeable) materials, materials with a liquid strike-through time of 1 second or more but less than 10 seconds are referred to as semi-hydrophilic materials, and materials with a liquid strike-through time of 10 seconds or more are referred to as hydrophobic (liquid impermeable) materials. Although not limited to these, AVGOL's RD220721E and RD220721F can be given as examples of semi-hydrophilic nonwoven fabrics.

[0027] (2-2) Capacity sheet 20 The containment sheet 20 is a sheet that contains the absorbent material 30 between the top sheet 10 and the back sheet 50. The containment sheet 20 is contained between the top sheet 10 and the back sheet 50. The containment sheet 20 has a plurality of containment sections 21.

[0028] The accommodating section 21 is a recess that accommodates the absorbent 30 between the top sheet 10 and the back sheet 50. The accommodating section 21 has a top surface 21u and a side surface 21s. The top surface 21u is a surface formed along the planar direction of the top sheet 10 and / or the back sheet 50. The side surface 22s is a surface formed to extend from the edge of the top surface 21u toward the back sheet 50. Adjacent accommodating sections 21 are joined to each other by a joint 22, which is a surface formed along the planar direction from the edge of the side surface 22s toward the back sheet 50. As a result, multiple accommodating sections 21 are arranged apart from each other between the top sheet 10 and the back sheet 50.

[0029] Each accommodating portion 21 accommodates substantially the same amount of absorbent body 30. Although not limiting, the accommodating sheet 20 is formed using an SMS non-woven fabric with a melt-blown layer sandwiched between spunbond layers.

[0030] In the present embodiment, in plan view, the edge 20e of the accommodating sheet 20 is formed in substantially the same shape as the top sheet 10. The size of the accommodating sheet 20 in plan view is slightly smaller than the top sheet 10 and the back sheet 50 so that it can be accommodated in the top sheet 10 and the back sheet 50. The top surface 21u is formed in a rectangular shape. The accommodating portion 21 has four side surfaces 21s. The plurality of accommodating portions 21 are arranged along the first edge 100e1 and the second edge 100e2.

[0031] In the present embodiment, a first accommodating portion 21a, which is an arbitrary accommodating portion 21 adjacent to the edge 100e, has an interval ga1 between it and a second accommodating portion 21b, which is another accommodating portion 21 adjacent to it in the direction in which the edge 100e extends, smaller than an interval ga2 between it and a third accommodating portion 21c, which is an accommodating portion 21 other than the second accommodating portion 21b (ga1 < ga2) (see FIG. 3).

[0032] (2-3) Absorbent body 30 The absorbent body 30 absorbs and holds the liquid that has passed through the top sheet 10. The absorbent body 30 is disposed between the top sheet 10 and the back sheet 50 in a state of being accommodated in the accommodating portion 21. The absorbent body 30 is a superabsorbent polymer (SAP: Super Absorbent Polymer). SAP generally has an average particle size of about 10 μm to 1,000 μm in a state before absorbing and holding liquid, and swells several times to several hundred times in volume after holding the liquid. Although not limiting, examples of the material of SAP include sodium polyacrylate.

[0033] (2-4) Cover sheet 40 The cover sheet 40 is a sheet that closes the opening 23 of the storage sheet 20. The opening 23 is an opening in the storage section 21 facing the top surface 21u, surrounded by the joint 22. In a plan view, the cover sheet 40 is formed to cover the entire storage sheet 20. With the cover sheet 40 covering the storage sheet 20 from the opening 23 side, it is joined to the joint 22 of the storage sheet 20 using adhesive such as hot melt adhesive or heat welding. The cover sheet 40 is made of nonwoven fabric. Examples of nonwoven fabrics, though not limited to them, include spunlace nonwoven fabric and air-through nonwoven fabric.

[0034] (2-5) Backseat 50 The backsheet 50 retains any moisture that the absorbent material 30 could not absorb in the absorbent article 100. The backsheet 50 is a sheet that is laminated on the top sheet 10 with a predetermined spacing to accommodate the containment sheet 20. The backsheet 50 is a waterproof film formed using a hydrophobic material. Examples of materials for the backsheet 50 include, but are not limited to, polyolefins (e.g., polypropylene, polyethylene), polyesters (e.g., PET), polyamides (e.g., nylon), etc. The backsheet 50 is typically positioned on the side that does not come into contact with the pet's skin during use.

[0035] The backsheet 50 is joined to the opposing surface of the topsheet 10 by a strip-shaped region 50a of a predetermined width from its edge 50e using hot-melt adhesive bonding or heat welding. In this embodiment, the strip-shaped region 50a is joined such that the edge 50e of the backsheet 50 overlaps with the edge 10e of the topsheet 10 in a plan view. As a result, the edge 10e of the topsheet 10 and the edge 50e of the backsheet 50 become the edge 100e of the absorbent article 100.

[0036] (3) Function of absorbent article 100 Liquid that comes into contact with the surface of the top sheet 10 penetrates the top sheet 10, passes through the top sheet 10, and reaches the containment sheet 20. The liquid that reaches the containment sheet 20 penetrates the containment sheet 20, and is then absorbed and held by the absorbent material 30 contained in the containment section 21. As a result, the absorbent article 100 holds the liquid that comes into contact with the surface of the top sheet 10 in the absorbent material 30, preventing the liquid from adhering to and wetting the surface on which the absorbent article 100 is installed, such as the floor.

[0037] The absorbent article 100, in which the top sheet 10 is a semi-hydrophilic nonwoven fabric, prevents liquid from leaking out from the edges 100e of the top sheet 10.

[0038] Furthermore, in the absorbent article 100, a portion of the absorbent material 30, whose volume has increased, breaks through the side surface 21s and joint 22 that form the gap ga1, and together with other adjacent absorbent materials 30 across the gap ga1, forms a linear portion 30a in which the absorbent materials 30 are connected in a linear fashion. Figure 3 is a plan view of the absorbent article 100 showing the state in which the absorbent material 30 has swollen.

[0039] (4) Features (4-1) The absorbent article 100 comprises a top sheet 10, a back sheet 50, and an absorbent body 30. The top sheet 10 is a semi-hydrophilic nonwoven fabric. The back sheet 50 is a hydrophobic sheet laminated on the top sheet 10 at predetermined intervals. The absorbent body 30 is placed between the top sheet 10 and the back sheet 50.

[0040] In an absorbent article 100 where the top sheet 10 is a semi-hydrophilic nonwoven fabric, the time it takes for a liquid that comes into contact with the surface of the top sheet 10 to penetrate and spread is longer than when a hydrophilic nonwoven fabric is used for the top sheet 10. As a result, much of the liquid that comes into contact with the surface of the top sheet 10 passes through the top sheet 10 and reaches the containment sheet 20 before it can penetrate and spread along the planar direction. Therefore, with the absorbent article 100, the liquid that comes into contact with the surface of the top sheet 10 penetrates along the planar direction before passing through the top sheet 10, and leakage from the edge 100e is suppressed.

[0041] (4-2) The absorbent material 30 is housed in a plurality of containment sections 21 made of nonwoven fabric. The containment sections 21 are positioned apart from each other between the top sheet 10 and the back sheet 50.

[0042] Since the absorbent material 30 is housed in multiple storage compartments 21 that are spaced apart from each other, the absorbent article 100 prevents the absorbent material 30 from being unevenly distributed between the top sheet 10 and the back sheet 50. Furthermore, this eliminates the need to place extra absorbent material 30 to compensate for uneven distribution, thus reducing the amount of absorbent material 30 and lowering the manufacturing cost of the absorbent article 100.

[0043] (4-3) The first storage portion 21a, which is a storage portion 21 adjacent to the edge 100e of the absorbent article 100, has a distance ga1 between it and another adjacent storage portion 21, the second storage portion 21b, in the direction of extension of the edge 100e, which is smaller than the distance ga2 between it and the third storage portion 21c, which is a storage portion 21 other than the second storage portion 21b.

[0044] By arranging the containment section 21 such that the intervals ga1 and ga2 are in the above relationship, a portion of the absorbent 30, whose volume increases due to retaining and swelling with liquid, breaks the side surface 21s and joint 22 that form interval ga1 before the side surface 21s and joint 22 that form interval ga2. As a result, a portion of the absorbent 30, whose volume has increased, forms a linear section 30a in which the absorbent 30 is connected linearly together with other absorbent 30 adjacent to it via interval ga1.

[0045] The storage space for the absorbent 30, which was initially composed only of the storage section 21, expands when the side surface 21s and joint 22 are destroyed. As a result, the absorbent 30 contained in the linear section 30a can hold more liquid than when it was contained only in the storage section 21. Consequently, the absorbent article 100 can hold more liquid while suppressing the uneven distribution of the absorbent 30, and can effectively prevent liquid from leaking from the edges 100e.

[0046] Furthermore, as shown in Figure 4, by arranging the housing section 21 such that the linear portion 30a forms a rectangle along the edge 100e in a plan view, it is possible to suppress the outward flow of liquid that has returned from the absorbent 30 housed in the housing section 21 located inside the linear portion 30a, and prevent leakage from the edge 100e.

[0047] (4-4) A strip-shaped region 50a of a predetermined width extending from the edge 50e of the backsheet 50 is directly joined to the opposing surface of the topsheet 10.

[0048] This prevents liquid that has permeated components other than the top sheet 10 and back sheet 50 from leaking out from the edge 100e through the joint between the top sheet 10 and the back sheet 50.

[0049] (5) Variant (5-1) Variation A The top sheet 10 of the absorbent article 100 may have a first strip-shaped region 10a, which is a strip-shaped region of a predetermined width including the edge 100e, made of a semi-hydrophilic nonwoven fabric, while the area other than the first strip-shaped region 10a may be made of a hydrophilic nonwoven fabric. Figure 5 is a plan view of the absorbent article 100 according to modified examples A and B.

[0050] According to the absorbent article 100 of modified example A, the liquid that comes into contact with the surface of the top sheet 10 can quickly penetrate the hydrophilic nonwoven fabric. Therefore, the absorbent article 100 of modified example A can effectively suppress leakage of the liquid from the edges 100e.

[0051] (5-2) Variation B The top sheet 10 of the absorbent article 100 may have a second strip-shaped region 10b, which is a strip-shaped area of ​​a predetermined width including the edge 100e, made of a hydrophobic sheet, while the area other than the second strip-shaped region 10b may be made of a semi-hydrophilic nonwoven fabric.

[0052] According to the absorbent article 100 according to Modification B, the hydrophobic sheet forming the second strip-shaped region 10b suppresses the leakage of the liquid contacting the surface of the top sheet 10 from the edge 100e of the liquid. Therefore, the absorbent article 100 according to Modification B can effectively suppress the leakage of the liquid from the edge 100e of the liquid.

[0053] Incidentally, the difference between Modification A and Modification B is that the top sheet 10 of Modification B has a second strip-shaped region 10b instead of the first strip-shaped region 10a, and this difference is not shown in the plan view. Therefore, in FIG. 5, Modification A and Modification B are shown using the same plan view.

[0054] (5-3) Modification C The distance between the accommodating portions 21 and other adjacent accommodating portions 21 may vary depending on the direction. Specifically, in a plan view, the accommodating portions 21 arranged along an arbitrary first direction d1 and a second direction d2 intersecting the first direction d1 may have a distance gb1 between the accommodating portions 21 adjacent along the first direction d1 smaller than the distance gb2 between still other adjacent accommodating portions 21 along the second direction d2.

[0055] FIG. 6 is a plan view of the absorbent article 100 according to Modification C. FIG. 7 is an enlarged view of the portion surrounded by the frame C in FIG. 6. FIG. 8 is a plan view of the absorbent article 100 according to Modification C showing the state where the absorber 30 is swollen. In the absorbent article 100 according to Modification C, the first direction d1 is the same as the extending direction of the first edge 100e1, and the second direction d2 is the same as the second edge 100e2.

[0056] In the absorbent article 100 according to Modification C, for any accommodating portion 21, the distance gb1 between the accommodating portions 21 adjacent along the first direction d1 is smaller than the distance gb2 between still other adjacent accommodating portions 21 along the second direction d2 (gb1 < gb2, see FIG. 7).

[0057] Therefore, in the absorbent article 100 according to modified example C, the absorbent 30, whose volume increases by retaining liquid and swelling, destroys the side surface 21s and joint 22 that form the gap gb1 before the side surface 21s and joint 22 that form the gap gb2. As a result, in the absorbent article 100 according to modified example C, as shown in Figure 8, the absorbent 30, whose volume has increased, forms a linear section 30b in which the absorbent 30 is connected linearly together with other absorbent 30 adjacent to it via the gap gb1.

[0058] The storage space for the absorbent 30, which was initially composed only of the storage section 21, expands when the side surface 21s and joint 22 are destroyed. As a result, the absorbent 30 contained in the linear section 30b can hold more liquid than when it was contained only in the storage section 21. Consequently, the absorbent article 100 according to modified example C can hold more liquid while suppressing the uneven distribution of the absorbent 30, and can effectively prevent liquid from leaking from the edge 100e.

[0059] The first direction d1 preferably intersects with the orientation direction of the top sheet 10. This intersecting of the first direction d1 with the orientation direction of the top sheet 10 suppresses the penetration of the liquid held in the absorbent 30 constituting the linear portion 30b to the edge 100e along the orientation direction of the nonwoven fabric contained in the top sheet 10.

[0060] As shown in Figure 6, the top surface 21u of the storage section 21 of the absorbent article 100 according to Modified Example C is rectangular (rhombic) in shape, with each side forming an angle of 45° with respect to the edge 100e. Note that, as in the above embodiment, the shape of the top surface 21u of the storage section 21 may be such that each side is parallel to the edge 100e, or the angle between each side and the edge 100e may be other than 45°.

[0061] (5-4) Modification D The first direction d1 does not have to be the same as the extension direction of the first edge 100e1. Also, the second direction d2 does not have to be the same as the second edge 100e2. Figure 9 is a plan view of the absorbent article 100 according to modified example D, showing the absorbent material 30 after it has swollen.

[0062] Modification D is another example of Modification C. In Modification D, the shape of the housing 21 is the same as that of the absorbent article 100 in Modification C, but the first direction d1 and the second direction d2 are different. Specifically, in Modification D, the first direction d1 forms a 45° angle with respect to the first edge 100e1 in a plan view. The second direction d2 forms a 45° angle with respect to the second edge 100e2 in a plan view. And the first direction d1 forms a 90° angle with respect to the second direction d2.

[0063] In modified form D, as in modified form C, the distance gb1 between the housing section 21 and other adjacent housing sections 21 along the first direction d1 is smaller than the distance gb2 between the housing section 21 and yet other adjacent housing sections 21 along the second arrangement direction ad2.

[0064] Therefore, in the absorbent article 100 according to modified example D, the absorbent 30, whose volume increases due to retaining liquid and swelling, destroys the side surface 21s and joint 22 that form the gap gb1 before the side surface 21s and joint 22 that form the gap gb2. As a result, in the absorbent article 100 according to modified example D, as shown in Figure 9, the absorbent 30, whose volume has increased, forms a linear portion 30c in which the absorbent 30 is connected linearly together with other absorbent 30 adjacent to it via the gap gb1.

[0065] The first direction d1 and the second direction d2 of the absorbent article 100 shown in Figure 9 may be reversed. Figure 10 is a plan view of the absorbent article 100 according to another example of modified example D, showing the absorbent material 30 when swollen. Specifically, in the absorbent article 100 shown in Figure 10, the first direction d1 of modified example D is the second direction d2, and the second direction d2 of modified example D is the first direction d1, with the storage section 21 arranged accordingly. Since other aspects are the same as modified example D, a detailed explanation is omitted.

[0066] While embodiments of this disclosure have been described above, it should be understood that various modifications to the form and details are possible without departing from the spirit and scope of this disclosure as described in the claims. [Explanation of Symbols]

[0067] 10: Top sheet 20: Storage Seat 21: Containment Unit 21a: First containment unit 21b: Second containment unit 21c: Third containment area 30: Absorbent material 40: Cover sheet 50: Back seat 100: Absorbent articles 100e: Edge d1: 1st direction d2 :Second direction [Prior art documents] [Patent Documents]

[0068] [Patent Document 1] Japanese Patent Publication No. 2020-121092

Claims

1. A top sheet containing a semi-hydrophilic nonwoven fabric, A hydrophobic backsheet laminated on the top sheet at predetermined intervals, An absorbent disposed between the top sheet and the back sheet, Equipped with Absorbent material.

2. The aforementioned top sheet is A first strip-shaped region, which is a strip-shaped region of a predetermined width including the edges, is formed of a semi-hydrophilic nonwoven fabric, and the region other than the first strip-shaped region is formed of a hydrophilic nonwoven fabric. The absorbent article according to claim 1.

3. The aforementioned top sheet is A second strip-shaped region, which is a strip-shaped area of ​​a predetermined width including the edges, is formed of a hydrophobic sheet, and the area other than the second strip-shaped region is formed of a semi-hydrophilic nonwoven fabric. The absorbent article according to claim 1.

4. The aforementioned back sheet is A strip-shaped region of a predetermined width is directly joined to the opposing surface of the top sheet from the edge. The absorbent article according to claim 1.

5. The absorbent body is It is housed in multiple compartments made of nonwoven fabric, The aforementioned housing section is Between the top sheet and the back sheet, they are arranged apart from each other. The absorbent article according to claim 1.

6. The first storage section, which is the storage section adjacent to the edge of the absorbent article, The distance between the edge and another adjacent housing portion, which is the second housing portion, in the direction of extension of the edge is smaller than the distance between the second housing portion and the housing portion other than the third housing portion. The absorbent article according to claim 5.

7. The aforementioned housing section is In a plan view, they are arranged along a first direction and a second direction intersecting the first direction. The distance between adjacent housing units in the first direction is smaller than the distance between adjacent housing units in the second direction. The absorbent article according to claim 5.

8. The first direction is, Intersecting the orientation direction of the nonwoven fabric contained in the top sheet, The absorbent article according to claim 7.

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