BR112017028186B1 - ABSORBENT ARTICLE - Google Patents

Abstract

ABSORBENT ARTICLE. An absorbent article is provided in which the location in the vertical direction in which the openings are formed is offset between the dorsal side and ventral side outer members. An absorbent article (100) having a ventral side outer member (104) positioned in the horizontal direction, and a dorsal side outer member (106) being positioned in the horizontal direction and having end sections in the horizontal direction that are connected to the end sections of the limb. external side of the ventral side (104) in the horizontal direction, characterized in that the ventral side outer member (104) and the dorsal side outer member (106) are each equipped with a non-skin side sheet (118) on the non-skin side thereof , a skin side sheet (120) on the skin side thereof, and rubber threads (140) provided between the non-skin side sheet (118) and the skin side sheet (120); a plurality of linear ventral side openings (150) being formed in rows on at least the skin side sheet (118) and the skin side sheet (120); a plurality of linear ventral side openings (150) being formed in rows on at least the non-side skin sheet (118) of the ventral side outer member (104); a plurality of linear dorsal lateral openings (150) being formed in rows on at least the non-lateral sheet of skin (118) of the dorsal lateral outer member (106); dorsal side openings (150) not being present in the vertical direction positions in which the ventral dorsal side openings (150) are formed in rows; and ventral side openings (150) not being present in the positions in the vertical direction in which the dorsal side openings (150) are formed in rows.

Description

[Technical Field]

[0001] The present invention relates to absorbent articles.

[Background]

[0002] Absorbent articles such as disposable diapers are usually manufactured as a combination of an outer layer body and an absorbent main body. The outer layer body is generally composed of a superimposed product of an inner outer member and an outer outer member. With respect to said absorbent articles, users have demanded a fastening quality similar to that of underwear. Whereas conventional disposable diapers have been made of paper or fabric, super absorbent polymer, non-woven material, etc. that are employed these days, their performance to satisfy as a demand is currently superior to the fabric diaper.

[0003] The non-woven material has advantages as follows: if the non-woven material is made by occasional coupling, its strength and extension will not be directional, mass production-enabled and inexpensive, easy combination of a plurality of materials, easy changing its thickness and spacing, and others. But, non-woven material has some disadvantages: its strength is inferior to woven material, and it is difficult to be transparent. To overcome these disadvantages, the following measures are often taken: increasing the thickness of the material itself to improve the strength of the material of the absorbent article made of non-woven material, or stacking a plurality of sheets of material in the thickness direction. However, in an absorbent article whose material strength is improved as mentioned above, air permeability decreases. In contrast, to improve the air permeability of an absorbent article, if one or more openings are/are formed along the lateral direction, the strength of the material of the absorbent article decreases. Thus, the air permeability compensates for the strength of the material.

[0004] From these points of view, an absorbent article is desired to have openings formed in the surface of the absorbent article to ensure the passage of air through the openings, and thus permitting to improve the strength of the material while attempting to decrease the humidity and internal temperature. of the absorbent article.

[0005] For example, LPT 1, shows a pull-up diaper 10 in which opening portions 38 are formed. As shown in Fig. 13, the pull-on diaper 10 is formed using an outer body 11 consisting of a front 21 and a back 23. The outer body 11 is configured with an outer layer material 33 (first sheet material) on one side of the surface. not contacting the skin, and an inner layer material 31 (second sheet material) on one side of the surface contacting the skin which are overlapped and joined together. The outer layer material 33 and the inner layer material 31 are made of non-woven material or the like. The outer layer material 33 partially has a plurality of laterally elongated opening portions 38 which are each formed along a width direction (X direction) of the pull-up diaper 10. A plurality of opening portions 38 harmonized in a direction of height (Y direction) constitutes an opening region 71. The opening portions 38 are each formed as a broadly narrow, long cut in the first sheet material serving as the outer layer material 33.

[Citation List] [Patent Literature]

[0006] [LPT 1] Japanese Patent Application Publication No. 2014-221122

[Invention Summary] [Technical problem]

[0007] However, the pull-up diaper 10 of the LPT 1 has vertical positions (positions in the Y direction) in which openings 38 are formed in the front part 21 corresponding to vertical positions in which openings 38 are formed in the back part 23. accordingly, as seen from the side through the waist part, in the positions in which openings are formed in the front part 21, there will also be openings 38 in the rear part 23. In some vertical positions, the number of sheet materials will be less than the materials sheets in other vertical positions. This could lead to the absorbent article breaking by the shape in an attempt to tear the absorbent article laterally, the force being produced in particular when the wearer pulls on the absorbent article with both hands.

[0008] [Problem Solution]

[0009] In order to address the above-described problem, one aspect of the present invention is for an absorbent article including a front outer member and a rear outer member each of which having openings formed therein, the vertical positions of the openings being different between the front outer limb and the rear outer limb.

[0010] Thus a main aspect of the present invention to achieve the above-described aspect is an absorbent article having a vertical direction, a lateral direction, and a thickness direction that are orthogonal to each other, the absorbent article including: a front outer member that is disposed along the lateral direction, and a front outer member and the rear outer member each including a non-side skin sheet positioned on a non-skin side, a skin side sheet positioned on a skin side and an elastic thread provided between the non-side sheet of the skin and the side sheet of the skin, at least the non-side sheet of the skin of the front outer member having a plurality of linear front openings formed in a row, at least the non-side sheet of the skin of the outer member rear opening having a plurality of linear rear openings formed in a row, no rear opening being provided in an upright position in which the front openings s are formed in a row, no front openings being provided in a vertical position in which the rear openings are formed in a row.

[Advantageous Effects of Invention]

[0011] According to the absorbent article of the present invention, it will be possible to reduce the possibility of breakage of the absorbent article,

[0012] Other problems and their solutions which are shown here, will become apparent from the detailed description of the embodiments of the invention, with respect to the accompanying drawings. [Brief Description of the Drawings] - Figure 1 is a perspective view of an absorbent article 100, such as a three-piece disposable diaper, in accordance with the present invention; - Figure 2 is a schematic plan view of the absorbent article 100 in an open state when viewed from a side of the skin; - Figure 3A is a cross-sectional view taken along A-A or C-C in Fig. two; - Figure 3B is a cross-sectional view taken along B-B in Fig. 3; - Figure 4 is a cross-sectional view taken along VI-VI in Fig. two; - Figure 5 shows a positional relationship between elastic members 140 and openings 150 of a front outer member 104 and elastic members 140 and openings 150 of a rear outer member 106; - Figure 6 shows another example of a way in which openings 150 are formed in a front outer member 104 and a rear outer member 106; - Figure 7 shows yet another example of a way in which openings 150 are formed in the front and rear outer members 104, 106; - Figure 8 shows yet another example of a way in which openings are formed in the front and rear outer members 104, 106; - Figure 9 shows yet another example of a way in which openings 150 are formed in the front and rear outer members 104, 106; - Figure 10 shows yet another example of a way in which openings 150 are formed in the front and rear outer members 104, 106; - Figure 11 shows yet another example of a way in which openings 150 are formed in the front and rear outer members 104, 106; - Figure 12 shows yet another example of a way in which openings are formed in the front and rear outer members 104, 106; - Figure 13 is a perspective view of a pull-up diaper 10 of the prior art.

[Settings Description]

[0013] While the present invention is susceptible to various modifications and alternatives, specific configurations thereof are shown by way of example in the drawings and will be described in detail herein. It should be understood, however, that the description herein of these specific configurations should not be understood to limit the invention to the particular forms shown, but rather the invention covers all modifications, equivalents, and alternatives falling within the spirit and scope of the present invention as defined by the attached claims.

[0014] At least the following matters will be clarified in the description of the present invention with reference to the accompanying drawings.

[0015] An absorbent article having a vertical direction, a lateral direction and a thickness direction that are orthogonal to each other, the absorbent article including: a front outer member which is disposed along the side direction, and a rear outer member which is disposed along the lateral direction, a lateral end part of the front outer member being connected to a lateral end part of the rear outer member, the front outer member and the rear outer member each including a non-skin side sheet positioned on a non-skin side skin, a skin side sheet positioned on a skin side, and an elastic thread provided between the non-skin side sheet and the skin side sheet, at least the non-skin side sheet of the front outer member having a plurality of openings linear fronts formed in a row, at least the non-skin side sheet of the hind outer limb having a plurality of linearly formed rear openings and in a row, no rear opening provided in a vertical position in which the front openings are formed in a row, no front opening provided in a vertical position in which the rear openings are formed in a row.

[0016] With said absorbent article, the front openings and the rear openings are formed in different vertical positions to each other. Accordingly, the strength of the material can be ensured even though air permeability is maintained by forming the openings in the front outer member and the rear outer member.

[0017] In the above-described absorbent article, it will be desirable that a configuration of the absorbent article satisfies at least one of the conditions: the elastic thread of the rear outer member being present in a vertical position in which the front openings are formed in a row; and the elastic thread of the front outer member being present in an upright position in which the rear openings are formed in a row.

[0018] In positions where the openings of both one member of the front outer limb and the outer rear limb, the elastic thread of the other limb will be present. Thus, the elastic thread of the other member functions as reinforcing members for parts of a member where openings are formed. With said absorbent article, the strength of the material can be increased even further.

[0019] In the absorbent article described above, it will be desirable for a vertical gap of one of the front openings formed in the rows and the rear openings formed in the rows to vary depending on a vertical position of one of the front openings and the rear openings, a vertical gap of the elastic threads varying depending on a vertical position of the elastic thread, and the elastic threads being arranged so that an elastic thread is disposed between two vertically adjacent front openings or between two vertically adjacent rear openings.

[0020] If the slope of the elastic members varies depending on the vertical position, the distance between the vertically adjacent openings varies, and the elastic members are arranged so that an elastic wire is disposed between two vertically adjacent openings. With said absorbent article, the strength of the material can be increased and in addition to the individual openings it can be securely opened.

[0021] In the absorbent article described above, it will be desirable that the front outer member and the rear outer member each include: an inner overlapping region that vertically and laterally overlaps an absorbent main body; a lower flank region that vertically and laterally overlaps an absorbent main body; a lower flank region that overlaps the absorbent main body that does not laterally overlap the absorbent main body; an upper flank region that does not vertically or laterally overlap the absorbent main body; and an inner upper region which does not vertically overlap the absorbent main body and which laterally overlaps the absorbent main body; and a sum of the lengths of the front openings in the upper flank region per unit of vertical length and in the upper inner region per unit of vertical length is less than a sum of the lengths of the front openings in the lower flank region per unit length, or a sum of the lengths of the front openings in the lower flank region per unit length. sum of lengths of rear openings in the upper flank region per unit of vertical length and in the upper inner region per unit of vertical length is less than a sum of lengths of rear openings in the flank region per unit of length.

[0022] The regions that the absorbent main body vertically overlaps have a high degree of rigidity against a force laterally attempting to tear the absorbent article. Accordingly, with said absorbent article, the passage of air can be ensured by forming a large number of openings in those regions on which the absorbent main body vertically overlaps. In addition, the strength of the material can be ensured simultaneously with the safe passage of air, by forming fewer openings in the regions where the absorbent main body does not overlap vertically.

[0023] In the absorbent article described above, it would be desirable for a sum of lengths of the front openings of the front outer member to be less than a sum of lengths of the rear openings of the rear outer member.

[0024] With said absorbent article, it will be possible to improve comfort during use by the safe passage of air by forming more openings on the back side of the absorbent article, where the user tends to perspire more.

[0025] In the above-described absorbent article, it will be desirable that the front outer member and the rear outer member each include: an inner overlapping region that vertically and laterally overlaps an absorbent main body; a lower flank region that vertically overlaps the absorbent main body and does not laterally overlap the absorbent main body; and an inner upper region which does not vertically overlap the absorbent main body and which laterally overlaps the absorbent main body; and that no opening is formed in the upper inner region of the front outer member.

[0026] A part of the front outer member between the absorbent main body and the waist opening of the absorbent article, especially, the upper inner region is a part that is likely to be torn along the lateral direction when the absorbent article is pulled by a user. Although the same is applied to the outer hind limb, there is a need to ensure air permeability in the corresponding part of the outer hind limb as wearers of the absorbent article tend to sweat more on the hind side. In addition, when the wearer leans forward with their back bent, the wearer will be able to move more easily if openings are formed in the posterior outer limb. With said absorbent article, not forming openings in the upper inner region of the front outer member, it becomes possible to reduce the possibility of breakage, and being able to ensure the strength of the material.

[0027] In the above-described absorbent article, it will be desirable that no openings are formed in the upper inner region and upper flank region of the front outer member.

[0028] The parts of the outer front member which are located between the main body of the absorbent and the waist opening and in which the outer front member does not vertically overlap the main body of the absorbent, i.e. the upper inner region and the region of upper flank of the front outer member being parts likely to be torn off along the lateral direction when the absorbent article is pulled by a wearer. Although it is applied to the outer hind limb, there is a need to ensure air permeability in the corresponding part of the outer hind limb as users of the absorbent article tend to sweat more on the hind side. In addition, when the wearer leans forward with their back bent, the wearer will be able to move more easily if openings are formed in the hind outer limb. With said absorbent article, not forming openings in the upper inner region and in the upper flank region of the front outer member, it becomes possible to reduce the possibility of rupture and its strength of the material can be ensured.

[0029] In the above-described absorbent article, it will be desirable that in at least one member of the front outer member and the rear outer member, an extreme part of the non-skin side sheet is folded to a side of the skin side sheet and joined to the sheet. side of the skin on the side of the skin.

[0030] As said absorbent article, the strength of a part that is likely to break along the lateral direction when the wearer pulls on the absorbent article can be increased by increasing the number of layers constituting that part.

[0031] In the above-described absorbent article, it will be desirable that on at least one member of the front outer member and the rear outer member, a reinforcing sheet is provided on the skin side of an extreme part of the skin side sheet with respect to the direction vertical.

[0032] With said absorbent article, the strength of a part that is likely to break along the lateral direction when the wearer pulls on the absorbent article may be increased by increasing the number of layers constituting that part.

[0033] Present Configuration

[0034] Fig. 1 is a perspective view of an absorbent article 100, such as a three-piece disposable diaper, in accordance with the present invention.

[0035] Fig. 2 is a schematic plan view of the absorbent article 100 in an open state when viewed from the non-skin side.

[0036] As shown in Figs. 1 and 2, the absorbent article 100 has a vertical direction, a lateral direction, and a thickness direction that are orthogonal to each other. The absorbent article 100 has an absorbent main body 102 for covering a wearer's crotch region and absorbing fluid such as excreta, a front outer member 104 for covering a front of the wearer, and a rear outer member 106 for covering a back of the wearer. of user.

[0037] The main body of the absorber 102 is arranged so that its longitudinal direction extends in the vertical direction. The front outer member 104 is arranged so that its longitudinal direction extends in the lateral direction, and is arranged and attached to an extreme longitudinal part of the main body of the absorbent 102 from a non-skin side with respect to the thickness direction. The rear outer member 106, which is a separate member having a larger area than the front outer member 106, which is a separate member having a larger area than the front outer member 104, being arranged so that its longitudinal direction extends in the side, and is arranged and attached to the other longitudinal end portion of the absorbent main body 102 from the non-skin side with respect to the thickness direction.

[0038] As shown in Fig. 2 showing the open state, the front and rear outer members 104, 106 are aligned parallel to each other with a space between them, and in this state, the absorbent main body 102 extends between these members, and also end parts 102ea and 102eb of the main body of the absorber 102 with respect to the longitudinal direction thereof and being attached to their closest members, i.e. the front and rear outer members 104, 106, respectively, and thus forming a substantially H-shaped outer shape in the flat view. From the above-described state, the absorbent main body 102 is folded in half along a substantially central portion 102ax, which serves as a folding position, with respect to the longitudinal direction thereof, then when the front and outer outer members back 104, 106 opposing each other in the double folded state are connected together at portions 104e and 106d (side end portions 104e 106e) which contact the sides of the wearer, the front and rear outer members 104, 106 being joined together , forming an annular shape and thus the absorbent article 100 in a worn state in which a waist opening APWC and a pair of leg openings APtc are formed as shown in Fig. 1 being obtained.

[0039] Various types of connection structures may be used to connect the front and rear outer members 104, 106 together. For example, if a removable connection structure formed by the use of deposition is employed, for example, a pant-like absorbent article 100 could be made, whereas a removable connection structure with an attachment tape, which is not shown or otherwise is employed, an open type absorbent article 100 could be made. In the present example, the above connecting structure is employed, and thus the absorbent article 100 is a pant-like absorbent article.

[0040] As shown in Figs. 2B and 3B, the absorbent main body 102 includes an absorbent core 108 which is produced by forming liquid absorbent fibers such as cellulose fibers into a predetermined shape such as an hourglass shape when viewed in plan view, a face sheet member 110 covering the absorbent core 108 on a skin side, and a backside sheet member 112 covering the absorbent core 108 on a non-skin side to then form an exterior of the main body of the absorbent 102. The core absorbent 108 may contain liquid absorbent particulate matter such as superabsorbent polymer, or it may contain a liquid absorbent material other than liquid absorbent fibers and a liquid absorbent particulate matter. In addition, the absorbent core 108 may still be covered with a liquid permeable sheet such as tissue paper which is not shown.

[0041] Front facing sheet member 110 is a liquid permeable nonwoven material having a larger flat size than absorbent core 1-8. The backside sheet member 112 is also a sheet having a larger flat size than the absorbent core 108, and for example, the sheet member 112 may have a two-layer structure in which a liquid impermeable leakproof sheet 112a made of polyethylene, polypropylene, or the like and an outer sheet 112b made of a non-woven or other material being bonded together. In a state where the absorbent core 108 is sandwiched between the front facing and back facing sheet members 112, 110, the leak proof sheet 112a, the front facing sheet member and the back facing sheet member 112, 110, the leak-proof sheet 112a of the back face sheet member 112 and the front face sheet member 110 are bonded together in a frame-like manner in portions extending outward from the four sides of the absorbent core 108, and thus the body main absorbent 102 is formed.

[0042] As shown in Figs. 1, 3 and 3B, LCG barrier sheaths and LG barrier sheaths may also be formed with the outer sheet 112b. The LCG barrier sheaths refer to the LCG leak-proof wall parts which are provided to rise from the respective lateral ends of the front face sheet member 110, and leg cuffs LG refers to extensible portions LG that are formed along respective leg openings APtc of absorbent article 100. The lateral size of outer sheet 112b is set to be sufficiently larger than that of the leak-proof sheet 112a, i.e., the outer sheet 112b extending farther outwardly along the lateral direction of the two sides of the leak-proof sheet 112a. Portions 112bf extend to the outside of leakproof sheet 112a being folded toward a central portion with respect to the lateral direction at the folded positions defining respective lateral end portions 102es of the main body of the absorbent 102. Elastic members such as elastic threads are fixed in the vicinity of the respective bending positions along the vertical direction in a vertically extended state, and thus the leg hems LG are formed. The folded portions 112bg further extend towards the central side with respect to the lateral direction, and being joined to the respective side ends of the front face sheet member 110 in positions where the folded portions 112bg cover the side edges of the sheet member. of the front face 110. These parts joined to the lateral end parts function as base end parts LCGb of the respective LCG barrier sheaths. Parts extending farther towards the respective leading ends with respect to the lateral direction than the base end parts LCGb constitute free end parts LCGf and are enabled to rise from the front face sheet member 110. Elastic members 116 as threads elastics extending in the vertical direction are attached to the main end parts of the respective free end parts LCGf in a state in which the elastic members 116 are vertically extended. Accordingly, when the elastic members 116 contract vertically, the main body of the absorbent 102 being vertically curved so that the side of the sheet member of the front face 110 is situated on the inner circumferential side, and when the main absorbent body 102 is curved in this way, the contraction force applied to the elastic members 116 causes the free end parts LCGf to vertically contract and rise from the front face sheet member 110, and thus the free end parts LCGf functioning as barrier sheaths LCG .

[0043] A liquid permeable sheet such as tissue paper may also be interposed, as a second sheet, between the front face sheet member 110 and the absorbent core 108 or between the back face sheet member 112 and the absorbent core 108 .

[0044] Both the front and rear outer members 104, 106 may be formed using a sheet member made from a flexible sheet as a non-woven material and having a substantially rectangular shape when viewed in plan view. As shown in Figs. 3A and 3B, the front and rear outer members 104, 106t are formed by placing a non-skin side sheet 118 and a skin side sheet 120, which are made of non-woven material, one on top of the other and joining the two together. . The non-skin side and skin side sheets 118, 120 need not be of the same sizes, and for example, a configuration such as that shown in Fig. 4, which is a cross-sectional view taken along VI-VI of Fig. 2, may be adopted. This is to say that a configuration can be adopted in which the vertical size of the non-skin side sheet 118 and the non-skin side sheet 120 can be differentiated from each other so that the non-skin side sheet 118, which is positioned on the non-skin side of the skin with respect to the direction of the skin, extends further vertically on the outside of the skin side sheet 120. In this case, as shown in Fig. 4, the portions 118f of the non-skin side sheet 118 that extend vertically to the outside of the skin side sheet 120 are folded toward the vertical center along fold positions which are respectively close to the extreme vertical edges of the skin side sheet 120. 120. In addition, the folded parts 118g are arranged and joined to the skin side sheet 120. The folded parts 118g may further be folded so that the vertical end parts 102ea and 102eb of the absorbent main body 102 are partially covered by the respective folded parts. 118g from the skin side of the absorbent main body 102.

[0045] As shown in Figs. 1 and 2, the outer front and rear members 104, 106 respectively have overlapping inner regions 132be and 132re whose main body of the absorbent 102 overlaps vertically and laterally, lower flank regions 134be and 134re whose main body of the absorber 102 overlaps vertically, laterally, upper flank regions 136be and 136re whose main body of the absorber 102 does not overlap vertically or laterally, and upper inner regions 138be and 138re whose main body of the absorbent 102 does not overlap vertically but not laterally.

[0046] On the outer front and rear members 104, 106, the end portions 102ea and 102eb of the main body of the absorbent 102 with respect to the vertical direction are covered by the corresponding overlapping inner regions 132be and 132re of the non-skin side of the absorbent main body 102 , and the inner overlapping regions 132be and 132re of the front and rear outer members 104, 106, respectively, being arranged and joined to corresponding end portions 102ea and 102eb.

[0047] The main body of the absorbent 102 is disposed in the overlapping inner regions 132be and 132re of the outer front and rear members 104, 106 respectively, without having the main body of the absorbent 102 in the upper inner regions 138be and 138re. Thus, the upper inner regions 138be and 138re of the outer front and rear members 104, 106, respectively, each constitute a strip-shaped portion whose main body of the absorbent 102 does not overlap vertically along the entire lateral length of the strip-shaped portion. range. These upper inner regions 138be and 138re serve as parts constituting the waist opening APwc of the absorbent article 100, and elastic members 140 being provided in the upper inner regions 138be and 138re in a continuously extended manner over substantially the entire lateral length of the upper inner regions 138be and 138re. Furthermore, with respect to the vertical dimensions Lbe and Lre of the respective upper inner regions 138be and 138re, in which the absorbent main body 102 does not overlap, the size of the rear outer member 106 is set to be larger than the size of the outer member. front 104 (Lre > Lbe) and fully, the position of the main body of the absorbent 102 being shifted towards the side of the front outer member even more than the side of the rear outer member 106. Thus smooth absorption of fluid as excreta will be ensured. Alternatively, the relationship between dimensions Lbe and Lre can be reversed (Lre < Lbe), or dimensions Lbe and Lre can be equal to each other (Lre = Lbe).

[0048] In the absorbent article 100 according to the present invention, the plurality of elastic members 40 such as elastic threads extending in the lateral direction are provided between the non-skin side sheet 118 and the skin side sheet 120. The elastic members 140 are attached to one or both of the skin-side and non-skin-side sheets 118, 120 in adhesion regions formed by settling (coating) an adhesive such as a heat-melt adhesive at a predetermined coating weight (weight per unit area) , in a state in which the elastic members 140 are laterally extended. The formation of the adhesion regions may be accomplished by sedimentation of the adhesive on the skin side and non-skin side sheets 118, 120 or by depositing the adhesive on the skin side or non skin side sheets 118, 120 or by depositing the adhesive on the elastic members. 140, or both.

[0049] As shown in Fig. 2 , on each of the outer front and rear members 104, 106, a pair of adhesion regions 142 are formed by overlapping the elastic members 140 on the inner sides laterally of the vertical end portions 102ea or 102eb of the main body of the absorbent 102. In each region of internal adhesion 142, the entire region is coated with an adhesive using a coating method such as spiral coating, seam control coating, or full surface coating using a notch coater,

[0050] In the absorbent article 100 according to the present invention, the contraction force in the lateral direction is adjusted by cutting at least a part of the elastic members 140.

[0051] The elastic members 140, which are arranged in a laterally extended state, are cut with a cutter or the like between the pair of internal adhesion regions 142, for example, at the centerline CL. However, the position where the elastic members 140 are cut is not limited to the centerline CL; the elastic members 140 may be cut at an offset position from the centerline CL, or they may be cut at a plurality of positions between the two sets of elastic members 114 for the leg cuff LG of the elastic members 116 for the barrier cuff LCG. Furthermore, the elastic members 140 are not necessarily cut by a single cutting process (cutting operation), and may also be cut by a plurality of cutting processes. The elastic members 140 that have been cut contract from the positions when the elastic members 140 are cut on the outer sides laterally of the elastic members 114 for the leg cuffs LG and the elastic members 116 for the barrier cuffs LCG. Hereinafter, this operation will be referred to as “reduction”.

[0052] The stretch factors in the parts on the elastic members 140 located in the regions that overlap the main body of the absorbent 102 (regions where reductions occur) have a greater stretch factor than the elastic members 140 in other regions or other elastic members. The above described configuration is adopted as a low stretch factor of the elastic members 140 may result in insufficient reduction. “Strain factor” refers to the extent to which each elastic member is extended when attached to a sheet or the like in an extended state, and the greater the stretch factor of an elastic member, the greater contraction force of the elastic member will be exhibited. . For example, there is a risk that if the stretch factor is low, the elastic members 140 may not contract sufficiently by being cut at the centerline CL, and thus a part of the elastic members 140 may be left on the inner sides laterally of the elastic members 114 for the leg cuffs LG and the elastic members 116 for the LCG barrier baths. To solve this problem, the stretch factor of the elastic members 140 in the regions overlapping with the main body of the absorbent 102 is set to be greater than that of the other elastic members and others, and thus allowing those elastic members 140 to properly contract due to the reduction. It will thus be possible to suppress the occurrence of a situation in which some of the elastic members 140 which have contracted laterally are left on the inner sides laterally of the elastic members 114 for the leg cuffs LG and the elastic members 116 for the barrier cuffs LCG.

[0053] The reduction of the elastic members 140 while securely controlling the position where the elastic members 140 contract in a way that allows for precise adjustment of a restraining force around the waist, which in turn may provide better fixation of the absorbent article 100 Furthermore, as a result of the reduction, the elastic members 114 for the leg cuffs LG and the elastic members 116 for the barrier cuffs LCG will no longer cross the elastic members 140, and thus are no longer likely to exert a contraction force. on elastic members 140 and vice versa. Thus, when wearing the absorbent article 100, the wearer will be able to move their legs easily.

[0054] Returning to Figs. 1 and 2, on the front and rear outer members 104, 106 formed by arranging the skin-side and non-skin-side sheets 118, 120 one on top of the other, a plurality of laterally elongated openings 150 of the absorbent article 100 are formed in the regions of lower flank 134be and 134re and the upper flank regions 136be and 136re. The openings 150 are formed so that a plurality of the openings are aligned in rows at predetermined intervals (slope of the opening) along the lateral direction of the absorbent article 100. Referring to Fig. 2, for example, in the lower flank regions 134be and 134re, four openings 150 each having a length (aperture length) of 3 [mm] are formed in each row with an opening slope of 8 [mm]. In the upper flank regions 136be and 136re, five apertures having an aperture length of 2 [mm] are formed in each row with an aperture slope of 8 [mm]. A plurality of rows 150 are formed at predetermined vertical intervals in accordance with the vertical intervals of elastic members 140. Usually, the openings are portions each formed by making a narrow cut in at least one of the skin side and non skin side sheets 118. , 120. It will be desirable for linear cuts 150 to have a length of 5 mm to 15 mm. By having an aperture length of 5 [mm] or more, apertures 150 are easily prevented from curling. The openings 150 may be linear openings, or they may be cutting portions having a certain width. When consideration is given to the strength of the members, linear openings are preferred. The openings 150 may be formed in at least one of the front and rear outer members 104, 106, or may be similarly formed in the front and rear outer members 104, 106. In addition, the openings 150 may be formed in at least one of the sheets. skin side and not skin side 118, 120.

[0055] As shown in Fig. 2, the lower flank regions 134be and 134re and the upper flank regions 136be and 136re in which the apertures are formed have a width W in the lateral direction, and are located on opposite sides of the inner overlapping regions 132be and 132re and the upper inner regions 138be and 138re, the overlapping inner region 132be and 132re and the upper inner region 138be or 138re having a lateral width M. In the above-described regions having width W, widths 150 are formed within inner regions having a width W1 (hereinafter these regions will be referred to as "opposite side opening regions SSA") excluding the outer side parts W2 in the vicinity of the corresponding joint base parts of the side seal regions, within a distance W2 of the respective extreme side parts 104e and 106e of the front and rear outer members 104, 106. In addition, the upper flank regions 136be and 136re and the upper inner regions 138be and 138re having a vertical length H1 from the vertical end portions of the front and rear outer members 104, 106, respectively, the end portions forming the waist opening APwc of the absorbent article 100. The lower flank regions 134be and 134re and the inner overlap regions 132be and 132re have a vertical length H2 from the vertical end portions of the front and rear outer members 104, 106, respectively, the end parts forming the leg openings APtc of the absorbent article 100. Thus, the vertical length H of the front outer members and later 104, 106 will be set to H = H1 + H2. In the parts of the inner overlapping regions 132be and 132re having the vertical length H2 from the respective end parts on the sides of the leg openings APtc, the parts within a distance H20 of these respective end parts are subjected to the above-described reduction processing, and thus, no elastic members 140 will be present in the parts where the absorbent core 108 overlaps. In the lower flank regions 134be and 134re relatively large openings are formed in the parts within distance H20 of the respective vertical end parts of the front and rear outer members 104, 106, the end parts forming the openings of the APtc legs of the absorbent article 100. In others parts of the lower flank regions 134be and 134re having a vertical length H21, relatively short openings 150 are formed. The vertical length H2 of the lower flank regions 134be and 134re and the overlapping inner regions 132be and 132re are defined as H2 = H20 + H21. In the upper flank regions 136be and 136re, relatively short openings 150 are formed.

[0056] The inner overlapping regions 132be and 132re and the upper inner regions 138be and 138re, which have the lateral width M, constitute regions in which no apertures 150 are formed (hereinafter these regions will be referred to as "regions without NSA apertures"). Furthermore, the outer side parts W2 in the vicinity of the side seal regions constitute regions without openings for the entire vertical length H of the front and rear outer members 104, 106.

[0057] As described above, the opposing side opening regions SSA of the front and rear outer members 104, 106 are harmonized so as to be aligned in the width direction, i.e. in the lateral direction spaced with the regions without openings NSA between them . The regions without openings NSA, the main body of the absorber 102 vertically and laterally overlap the outer front and rear members 104, 106 and thus the regions without openings NSA constitute parts having a high degree of rigidity against the rupture forces in the vertical and lateral directions. . The lateral length M of the non-apertured regions NSA of the front and rear outer members 104, 106 may be properly established with consideration given to the effects of the opposing side-aperture regions SSA and the strength of the junction between the skin side and non skin side sheets. 118, 120.

[0058] In the regions where the lateral skin and non-lateral skin sheets 118, 120 are arranged on top of each other, the two sheet members are joined together and integrated into a single piece, which has elasticity in the direction around the waist, i.e., the lateral direction of the absorbent article 100. The opposing side opening regions SSA of the non-skin side sheet 118 are joined to an inner layer material 31 and having elasticity. In the opposing side opening regions SSA, the non-lateral skin and skin side sheets 118, 120 are joined together in a surface-to-surface contact manner over the vertical length H and having elasticity. Elasticity may be increased by interposing elastic members 140 between the non-side skin and skin side sheets 118, 120 in a state being stretched, and thus having elasticity. Alternatively, both or one of the non-skin side and skin side sheet 118, 120 may be composed of an extensible material.

[0059] In the regions of opposite side openings SSA, the lateral contraction of the front and rear outer members 104, 106 that have elasticity, increasing the gap between the two edges constituting each opening 150, and the increase of the slits serving as holes for air passage of the front and rear outer members 104, 106. In addition, when the wearer wears the absorbent article 100 the front and rear outer members 104, 106 are stretched or contracted due to body movement or the like, the through holes of air opening and closing according to the movement, and thus promoting the discharge of moisture from the interior of the absorbent article 100 a still increasing the permeability to air. Furthermore, having a plurality of openings 150, the opposing side opening regions SSA of the non-lateral skin sheet 118 deform more easily than the non-apertured regions NSA and having greater flexibility. Also, due to the elasticity, each of the openings are braided, creating fine wrinkles and so the waist region becomes smooth.

[0060] The plurality of elastic members 140 are matched, joined and secured between the non-lateral sheets of the skin of lateral skin 118, 120 in the vertical intervals in a state in which the elastic members 140 are laterally stretched, avoiding the openings 150 which are formed in rows. Thus, the elastic members 140 are securely held, joined and secured between the non-lateral skin sheet and the skin side 118, 120 without being exposed to the outside through the openings 150. Thus, the elastic members 140 integrate the non-lateral skin sheet 118. and the skin side sheet 120, which form the front and back outer members 104, 106 in a single member, and impart elasticity in the around-the-waist direction, i.e., in the lateral direction. It will be preferable that the elastic members 140 are continuously joined to the non-side skin and skin side sheets 118, 120 in a surface-to-surface contact manner not only at the opposing side opening regions SSA but also at the inner overlapping regions 132be and 132re and the outer side parts W2 using a hot melt adhesive as described above. Thus, not only does the heat-melt adhesive applied to the elastic members 140 properly have the sheet surfaces of the non-skin-side and skin-side sheets 118, 120 contributing to secure the elastic threads, and thus loosening of the elastic threads can be prevented .

[0061] Here, Fig. 5 shows a positional relationship between elastic members 140 and openings 150 and a front outer member 104 and elastic members 140 and openings 150 of a rear outer member 106.

[0062] As mentioned above, absorbent article 100 includes absorbent main body 102 having absorbent core 108; the front outer member 104, and the rear outer member 106. The front and rear outer members 104, 106 each include the non-skin side sheet 118, the skin side sheet 120, and the elastic members 140 provided between the non-skin side sheets 118, the skin side sheet 120, and the elastic members 140 provided between the non-skin side sheets. of the skin and the side of the skin 118, 120. The plurality of linear openings 150 are formed laterally in rows on at least the non-skin side sheet 118 of the front outer member 104. At the same time, the plurality of linear openings 150 are formed laterally in rows on at least the non-skin side sheet 120 of the outer hind limb 106. A feature of the absorbent article 100 in accordance with the present configuration is that as shown in a cross-sectional view taken from the long X-X, the outer hind limb 106 not containing openings 150 in the upright positions in which the plurality of openings 150 are formed in rows on the front outer member 104, and on the other hand, the front outer member 104 containing no openings 150 in the upright positions in which the plurality of openings 150 are formed in rows in the member ex150 in the upright positions in which the plurality of openings 150 are formed in rows in the rear outer member 106.

[0063] With this configuration of the absorbent article 100, in the vertical direction, the openings on the front side are not formed in the same vertical positions as the openings 150 on the rear side. Thus, the strength of the material can be ensured even when air permeability is maintained by the formation of openings 150 in the front and rear outer members 104, 106.

[0064] In addition, as shown in the cross-sectional view taken along X-X, the elastic members 140 of the rear outer member 106 may be present in those upright positions on the rear outer member 106 which are the same upright positions in which the plurality of openings 150 are formed in rows on the outer front member 104. In addition, the elastic members 140 of the outer front member 106 may be present in those upright positions on the outer front member 104 which are the same upright positions whose plurality of openings 150 are formed in rows on the member. rear exterior 106.

[0065] With this configuration of the absorbent article 100, in those positions in which the plurality of openings 150 of the front outer member 104 or the rear outer member 106 are formed, the elastic members 140 of the other member will be present. Thus, the elastic members 140 of the other member function as reinforcing members for parts of a member where the openings 150 are formed in rows. Thus, the strength of the material can be further increased.

[0066] The vertical gaps of the rows of the above-described openings 150 formed in the lateral gaps may vary depending on the vertical position on the absorbent article 100. In this case, it will be preferable that the vertical gaps of the elastic members 140 vary depending on the vertical position, and the members elastics 140 being arranged so that an elastic member 140 is disposed between every two rows of openings 150 which are vertically adjacent to each other.

[0067] With said configuration of the absorbent article 100, if the inclination of the elastic members 140 varies depending on the vertical position, the distance between the openings 150 that are vertically adjacent to each other will also vary, and the elastic members 140 being arranged so that a elastic member 140 is disposed between each two openings 150 which are vertically adjacent to each other. With this configuration, the strength of the material can be increased, and the individual openings 150 can be securely opened.

[0068] Here, users wearing the absorbent article 100 generally tend to sweat more on the back side than the front side. Accordingly, it will be desirable to set the density of the openings 150 in the outer rear member 106 to be greater than the density of the openings 150 in the outer front member 104. Furthermore, in the overlapping inner regions 132be and 132re, the materials are arranged one on top of the other. the other in the thickness direction, and thus the regions constituted by the lower flank regions 134be and 134re, which vertically overlap the inner overlapping regions, and the inner overlapping regions 132be and 132re have a high degree of rigidity against stress laterally attempting to break the article absorbent 100. Accordingly, it will be desirable that the aperture density in the lower flank regions 134be and 134re be set to be greater than the fiber density in the upper inner regions 138be and 138re and in the upper flank regions 136be and 136re.

[0069] Accordingly, the plurality of openings 150 that are formed as shown in Fig. 2 satisfy [(L(be) + L(be)mus)/H1] < [L(be)bis/H2], where L(be)bus represent the sum of the opening lengths 150 in the upper flank regions 136b and the front outer member 104, L(be)mus representing the sum of the lengths of the openings 150 in the upper inner region 138be, and L(be)bls representing the sum of the lengths of the openings 150 in the lower flank regions 134be. This is to say that in the outer front member 104, the sum of the lengths of the openings 150 in the upper flank regions 136be per unit of vertical length and in the upper inner region 138be per unit of vertical length is less than the sum of the lengths of the openings 150 in the lower flank regions 134be per unit length.

[0070] In addition, the plurality of openings 150 that are formed as shown in Fig. 2 satisfies [(L(re)bus)/H1 < [L(re)bls/H2], where L(re)bus represents the sum of the lengths of the openings 150 in the upper flank regions 136r and the rear outer member 106, L (re)mus represents the sum of the lengths of openings 150 in the lower flank regions 134re. Thus, in the rear outer member 106, the sum of the lengths of the openings 150 in the upper flank regions 136re per unit of vertical length and in the upper inner region 138re per unit of vertical length is less than the sum of the lengths of the openings 150 in the regions of vertical length. lower flank 134re per unit length.

[0071] The regions that the main body of the absorbent overlaps have a high degree of rigidity against a force trying to tear the absorbent article 100 laterally. Thus, the passage of air can be ensured by the formation of a large number of openings 150 in those regions whose main body of absorber 102 vertically overlaps as mentioned above. At the same time, the strength of the material can be ensured while ensuring the passage of air by forming fewer openings 150 in regions in which the main body of the absorber 102 does not overlap vertically.

[0072] Furthermore, in the above-described case, the plurality of openings 150 that are formed as shown in Fig. 2, satisfying [(L(be)bus + L(re)bus ) + L(re)bus/H1] < [L(be)bls + L(re)bls)/H2. Thus, the value obtained by dividing the total length of the main body of the absorber 102 does not overlap vertically or laterally by the vertical length H1 of the upper flank regions 136be and 136re being less than the value obtained by dividing the total length of the linear openings 150 in the lower flank regions 134be and 134re, whose main body of the absorber 102 vertically overlaps the front and rear outer members 104, 106 but does not laterally overlap by the vertical length H2 of the lower flank regions 134be and 134re.

[0073] The purpose of this is who as described above, since the regions whose main body of the absorbent 102 vertically overlaps have a high degree of rigidity against the force attempting to tear the absorbent article 100 in the lateral direction, the air passage being ensured by forming a large number of openings 150 in those regions whose main body of the absorbent 120 vertically overlaps, and at the same time, the strength of the material can be ensured while ensuring the passage of air by forming fewer openings 150 in regions whose body absorbent core 10 does not overlap vertically.

[0074] The plurality of openings 150 that are formed as shown in Fig. 2 satisfies L(be) < L(re), where L(be) represents the sum of lengths of openings 150 in front outer member 104, and L(re) represents the sum of lengths of openings 150 in rear outer member 106. The formation of the openings 10 in this way makes it possible to ensure the passage of air by forming more openings 150 on the rear side where the wearers of the absorbent article 100 tend to sweat more and improve comfort during use.

[0075] Furthermore, it will still be possible not to form openings 150 in the upper inner region 138b and of the outer front member 104. A part of the upper front member 104 between the main body of the absorbent 102 and the waist opening APwc of the absorbent article 100, especially the upper inner region 138be is a part that is likely to tear along the lateral direction when the absorbent article 100 is pulled by the wearer. While this applies to the outer hind limb 106, there is a need to ensure air permeability in the corresponding part of the outer hind limb 106 as wearers of the absorbent article 100 tend to sweat more on the rear side. In addition, when the wearer leans forward with his legs bent, the wearer will be able to move more easily if openings are formed in the outer rear member 106. Accordingly, the non-forming of openings 150 in the upper inner region 138b and the front outer member 104 may reduce the possibility of breakage and may ensure the strength of the material. It will further be possible not to form openings 150 in the upper inner region 138be and upper flank regions 136be of the outer front member 104. As described above, not forming openings in the upper inner region 138be and the upper flank regions 136be of the outer front member 104 may reduce the possibility of breakage and may ensure strength to the material.

[0076] The openings 150 may be formed in various ways by changing the length, interval and number of openings 150.

[0077] Fig. 6 shows another example of the manner in which openings 150 are formed in the front and rear outer members 104, 106.

[0078] In Fig. 6, the plurality of apertures 150 are formed only in the lower flank regions 134be and 134re of the front and rear outer members 104, 106 and not formed in the upper inner regions 138be and 138re and in the upper flank regions 136be and 136re. In each row of openings 150 along the lateral direction of the absorbent article 100, four openings 150 are formed on each side. The openings are 3 [mm] long and the four openings 150 are formed at 8 [mm] intervals. 12 [mm] and 8 [mm].

[0079] When the plurality of openings 150 are formed as shown in Fig. 5, in the outer front member 104, the sum of the lengths of the openings 150 in the upper flank regions 136b and per unit of vertical length and in the upper inner region 138b per unit of vertical length is less than the sum of the lengths of the openings 150 in the regions of lower flank 134be per unit length.

[0080] In addition, the plurality of openings 150 are formed as shown in Fig. 5, in the rear outer member 106, the sum of the lengths of the openings 150 in the upper flank regions 136re per unit of vertical length and in the upper inner region 138re per unit of vertical length being less than the sum of the lengths of the openings 150 in the regions of vertical length. lower flank 134er per unit length.

[0081] Furthermore, when the plurality of openings 150 are formed as shown in Fig. 6, the value obtained by dividing the total length of the linear openings 150 in the upper flank regions 136be and 136re, whose absorbent main body 102 does not overlap in the vertical or lateral direction, by the vertical length H1 of the upper flank regions 136be and 136re being less than the value obtained by dividing the total length of the linear openings 150 into the lower flank regions 134be and 134re, whose main body of the absorber 102 vertically overlaps the front and rear outer members 104, 106 but does not overlap laterally, at vertical length H2 of lower flank regions 134be and 134re.

[0082] Fig. 7 shows yet another example of the manner in which openings 150 are formed in the front and rear outer members 104, 106.

[0083] In Fig. 7, the plurality of apertures 150 are formed in the lower flank regions 134be and 134re of the outer rear members 104, 106 and not formed in the upper inner regions 138be and 138re and the lower flank regions 136be and 136re. The openings 150 formed in the front and rear outer members 104, 106 are each 3 [mm] long. In the front outer member 104, the plurality of openings 150 are formed such that the closest vertical position of the rows in which the openings 150 are laterally aligned with the opening of the pear APtc, the closest openings 150 are laterally aligned with the opening of the APtc leg. , the closest openings 150 are to the absorbent main body 102 in the lateral direction. The openings 150 in the rear outer member 106 are formed in the same manner as in the case of Fig. 5. A total of 36 openings 150 are formed in the front outer member 104, and a total of 48 openings 150 are formed in the rear outer member 106.

[0084] Accordingly, when the plurality of openings 150 are formed as shown in Fig. 7, in the front outer member 104, the sum of the lengths of the openings 150 in the upper flank regions 136b and per unit of vertical length and in the upper inner region 138be per unit of vertical length will be less than the sum of the lengths of the openings 150 in the regions of vertical length. lower flank 134be per unit length.

[0085] Furthermore, when the plurality of openings 150 are formed as shown in Fig. 7, the rear outer member 106, the sum of the lengths of the openings 150 in the upper flank regions 136re per unit of vertical length and in the upper inner region 138re per unit of vertical length will be less than the sum of the lengths of the openings 150 in the regions of flank 134re per unit length.

[0086] Furthermore, when the plurality of openings 150 are formed as shown in Fig. 7, the value obtained by dividing the total length of the linear openings 150 in the upper flank regions 136be and 136re, whose main body of the absorber 102 does not overlap in the vertical direction nor in the lateral direction, by the vertical length H1 of the upper flank regions 136be and 136re will be less than the value obtained by dividing the total length of the linear openings 150 into the lower flank regions 134b and 134re, whose main body of the absorber 102 vertically overlaps the front and rear outer members 104, 106 but does not overlap laterally, at least vertical length H2 of lower flank regions 134be and 134re.

[0087] On the front outer member 104 in Fig. 7, the openings 150 are formed so that the closest vertical position of the openings 150 to the leg opening APtc, the closest openings 150 are to the center of the absorbent article 100. Thus, when the absorbent article 100 is worn, the rigidity The bending of the absorbent article 100 in the vertical direction will be reduced in parts corresponding to the area around the leg/hip joint, and when the legs are moved, the absorbent article 100 easily bends along the shape of the inguinal region. In addition, the strength of the material in a part covering the inguinal region is reduced, and so the front outer member 104 easily attaches to the inguinal region due to the contraction of the elastic members 140. The ease of attachment makes it difficult for any space to be formed. between the front outer member 104 and the front side of the wearer, so that air heated by body heat is unlikely to be trapped. Furthermore, the openings 150 provide air passage and thus air permeability will be improved.

[0088] Fig. 8 shows yet another example of the manner in which openings 150 are formed in the front and rear outer members 104, 106. In Fig. 8, the plurality of apertures 150 are formed only in the lower flank regions 134be and 134re of the front and rear outer members 104, 106 and not formed in the upper inner regions 138be and 138re and the upper flank regions 136be and 136re. In Fig. 8, openings 150 are formed in the front and rear outer members 104, 106 being configured as multi-apertures 150 in each of which three openings having a length of 3 [mm] being made within a region having a side length of 3 [mm] mm] in the lateral direction and a length of 2 [mm] in the vertical direction. With this configuration, the non-skin side sheet 118 between the slits of each of the multi-apertures 150 constitutes a plurality of band-shaped portions, and those band-shaped portions twisting independently, and thus resulting in openings more easily. visually recognized.

[0089] When the plurality of multi-apertures 150 are formed as shown in Fig. 8, in the outer front member 104, the sum of the lengths of the openings 150 in the upper flank regions 136be and 136re per unit of vertical length and in the upper inner region 138be per unit of vertical length being less than the sum of the lengths of the openings 150 in the lower flank regions 134be per unit length.

[0090] Furthermore, when the plurality of multi-apertures 150 are formed as shown in Fig. 8, in the rear outer member 106, the sum of the lengths of the openings 150 in the upper flank regions 136re per unit of vertical length and in the upper inner region 138re per unit of vertical length being less than the sum of the lengths of the openings 150 in the regions of lower flank 134re per unit length.

[0091] Furthermore, when the plurality of multi-apertures 150 are formed as shown in Fig. 8, the value obtained by dividing the total length of the linear openings 150 in the upper flank regions 136be and 136re whose main body of the absorber 102 does not overlap in the vertical or lateral direction, by the vertical length H1 of the upper flank regions 136be and 136re being less than the value obtained by dividing the total length of the linear openings 150 into the lower flank regions 134be and 134re, whose main body of the absorber 102 vertically overlaps the front and rear outer members 104, 106 but not laterally overlapping, at vertical length H2 of lower flank regions 134be and 134re.

[0092] Fig. 9 shows yet another example of the manner in which openings are formed in the front and rear outer members 104, 106.

[0093] In Fig. 9, the plurality of apertures 150 are formed only in the lower flank regions 134be and 134re of the front and rear outer members 104, 106 and not formed in the upper inner regions 138be and 138re and in the upper flank regions 136be and 136re. In the lower flank regions 134be and 134re, two different matching patterns of apertures 150 in the individual rows in which apertures 150 are laterally aligned are employed. For example, in Fig. 6, four apertures 150 each having a length of 3 [mm] are formed in the intervals of 8 [mm], 12 [mm], and 8 [mm], where in Fig. 9, one of the two patterns is a pattern in which only 150 odd-numbered openings are formed. As shown in this drawing, the above-described two patterns are alternatively formed at different vertical positions in the lower flank regions 134be and 134re.

[0094] When the plurality of openings 150 are formed as shown in Fig. 9, in the outer front member 104, the sum of the lengths of the openings 150 in the upper flank regions 136be per unit of vertical length and in the upper inner region 138be per unit of vertical length will be less than the sum of the lengths of the openings 150 in the regions of vertical length. lower flank 134be per unit length.

[0095] Furthermore, when the plurality of openings 150 are formed as shown in Fig. 9, in the rear outer member 106, the sum of the lengths of the openings 150 in the upper flank regions 136re per unit of vertical length and in the upper inner region 138re per unit of vertical length being less than the sum of the lengths of the openings 150 in the regions of lower flank 134re per unit length.

[0096] Furthermore, when the plurality of openings 150 are formed as shown in Fig. 9, the value obtained by dividing the total length of the linear openings 150 in the upper flank regions 136be and 136re, whose main body of the absorber does not overlap in the vertical or lateral direction, by the vertical length H1 of the upper flank regions 136be and 136re being less than the value obtained by dividing the total length of the linear openings 150 into the lower flank regions 134be and 134re, whose main body of the absorber 124 vertically overlaps with the front and rear outer members 104, 106 but not laterally overlapping by the vertical length H2 of lower flank regions 134be and 134re.

[0097] Fig. 10 shows yet another example of the manner in which openings 150 are formed in the front and rear outer members 104, 106.

[0098] Harmonization of openings 150 in Fig. 10 is achieved by replacing the openings 150 in the rear outer member 106 from the matching openings 150 in Fig. 6 with multi-apertures 150. Similar to Fig. 8, n Fig. 10, the openings 150 formed in the rear outer member 106 are configured as multi-apertures 150 in each of which three openings having a length of 3 [mm] are made in a region having a length of 3 [mm] in the lateral direction and a length of 2 [mm] in the vertical direction. Furthermore, the plurality of openings 150 or multi-apertures 150 are formed only in the lower flow regions 134be and 134re of the front and rear outer members 104, 106 and are not formed in the upper inner regions 138be and 138re and the upper flank regions. 136be and 136re.

[0099] Accordingly, the plurality of openings 150 and multi-apertures 150 which are formed as shown in Fig. 10 satisfies L(be) < L(re), where L(be) represents the sum of the lengths of the openings 150 in the front outer member 104, and L(re) represents the sum of the lengths of the openings 150 constituting the multi-apertures 150 on the hind outer limb 106.

[00100] Furthermore, when the plurality of openings 150 are formed as shown in Fig. 10, in the front outer member 104, the sum of the lengths of the openings 150 in the upper flank regions 136be per unit of vertical length and in the upper inner region 138be per unit of vertical length will be less than the sum of the lengths of the openings 150 in the regions of vertical length. lower flank 134be per unit length.

[00101] Furthermore, when the plurality of openings 150 and multi-apertures 150 are formed as shown in Fig. 10, the outer rear member 106, the sum of the lengths of the openings 150 constituting the multi-apertures 150 in the upper flank regions 136re per unit of vertical length and in the upper inner region 138re per unit of length shall be less than the sum of the lengths of the apertures 150 constituting the multi-apertures 150 in the lower flank regions 134re per unit length.

[00102] Furthermore, when the plurality of openings 150 and multi-apertures 150 are formed as shown in Fig. 10, the value obtained by dividing the total length of the linear openings 150 in the upper flank regions 136be and 136re, whose main body of the absorber 102 does not overlap in the lateral direction nor in the vertical direction, by the vertical length H1 of the upper flank regions 136be and 136re being less than the value obtained by dividing the total length of the linear openings 150 into the lower flank regions 134be and 134re, whose main body of the absorber 102 vertically overlaps the rear outer members 104, 106 but does not overlap laterally, by the length vertical H2 of the lower flank regions 134be and 134re.

[00103] Harmonization of the opening in Fig. 11 is the same harmonization of the opening of Fig. 6, but the openings 150 are X-shaped. Furthermore, the matching of the opening in Fig. 12 is the same matching as the opening in Fig. 6, but the openings come out each in a U-shape.

[00104] The operations and effects of matching the apertures 150 shown in Figs. 11 and 12 are the same as those of the matching apertures 150 shown in Fig. 6.

[00105] The above description merely provides an illustration of the particular embodiments of the invention and is not intended to limit the invention to those embodiments described above. Thus, the invention is not limited to only those configurations described above. Rather, it will be appreciated that a person skilled in the art can devise alternative configurations within the scope of the invention. [List of Reference Signs] 100: absorbent article, 102: main body of the absorbent, 104: front outer member, 106: rear outer member, 108: absorbent core, 110: front face sheet member, 112: sheet member from the back face, 114,116: elastic member, 118: non-skin side sheet, 120: skin side sheet, 132be, 132re: inner overlapping region, 134b, 134re: lower flank region, 136be, 136re: upper flank region, 138be, 138re: upper inner region, 140: elastic member (elastic thread), 150: opening

Claims (9)

1. "Absorbent article", having a vertical direction, a lateral direction and a thickness direction, which are orthogonal to each other, characterized in that it comprises a front outer member which is arranged along the lateral direction, a rear outer member which is arranged along the lateral direction, a lateral end portion of the front outer member being connected to a lateral end portion of the rear outer member, and in that the front outer member and the rear outer member each include a non-skin side sheet located on a non-skinned side. of the skin, a side sheet of the skin located on a side of the skin, and an elastic thread provided between the non-side sheet of the skin and the side sheet of the skin, and in that at least the non-side sheet of the skin of the outer front member has a plurality of linear front openings formed in a row, at least the non-lateral skin sheet of the hind outer limb has a plurality of linear rear openings formed in a row one row, and no opening is provided in a vertical position in which the front openings are formed in a row, and no opening is provided in a vertical position in which the rear openings are formed in a row. "Absorbent article" according to claim 1, characterized in that a configuration of the absorbent article satisfies at least one of the conditions that the elastic thread of the rear outer member is present in a vertical position in which the front openings are formed in the row, and the elastic thread of the front outer member is present in an upright position in which the rear openings are formed in the row. 3. "Absorbent article" according to any one of the preceding claims, characterized in that a vertical gap of one of the front openings formed in the row and the rear openings formed in the rows varies depending on a vertical position of one of the front openings and the openings and in that a vertical gap of the elastic threads varies depending on a vertical position of the elastic thread, and in that the elastic threads are arranged so that an elastic thread is disposed between two vertically adjacent front openings or between two vertically adjacent rear openings. An "absorbent article" according to any one of the preceding claims, characterized in that the front outer member and the rear outer member each include an inner overlapping region that vertically and laterally overlaps a main body of the absorbent, a lower flank region that vertically overlaps the absorbent main body, an upper flank region that does not overlap vertically or laterally the absorbent main body, and an inner upper region that does not vertically overlap the absorbent main body and laterally overlaps the absorbent main body, and for a sum of the lengths of the front openings in the upper flank region per unit of vertical length and an upper inner region per unit of vertical length is less than a sum of the lengths of the front openings in the lower flank region per unit of length, or a sum of the lengths of the posterior openings in the region of upper flank per unit of vertical length and in the upper inner region per unit of vertical length be less than a sum of the lengths of the rear openings in the lower flank region per unit of length. An "absorbent article" according to any one of the preceding claims, characterized in that a sum of the lengths of the front openings of the front outer member is less than a sum of the lengths of the rear openings of the rear outer member. An "absorbent article" according to any one of the preceding claims, characterized in that the front outer member and the rear outer member each include an inner overlapping region that vertically and laterally overlaps the main body of the absorbent, a lower flank region that vertically overlaps the absorbent main body and does not laterally overlap the absorbent main body, an upper flank region that does not vertically or laterally overlap the absorbent main body, and an inner upper region that does not vertically overlap the absorbent main body and which laterally overlaps the main body of the absorbent, and in that no opening is formed in the upper inner region of the front outer member. 7. "Absorbent article" according to claim 6, characterized in that no opening is formed in the upper inner region and upper flank region of the front outer member. An "absorbent article" according to any one of the preceding claims, characterized in that in at least one member of the front outer member and the rear outer member, an extreme part of the non-lateral sheet of the skin is folded to a side of the side sheet. of the skin and attached to the side sheet of the skin on the side of the skin. "Absorbent article", according to any one of the preceding claims, characterized in that on at least one of the front outer member and the rear outer member, a reinforcing sheet is provided on the side of the skin with an extreme part of the side sheet of the skin with respect to the vertical direction.

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