Washable and reusable absorbent underwear

Abstract

The present disclosure relates to a washable and reusable absorbent underwear (1) comprising an absorbent assembly (10) comprising a wearer-facing top layer (15), a moisture barrier (12) and optionally one or more intermediate layers (11, 16) wherein the wearer-facing top layer (15) defines a circumferential outer edge (20) of the absorbent assembly (10). The circumferentially outer edge (20) comprises one or more sealed edge sections (21a, 21b), each sealed edge section (21a, 21b) providing a continuous seal along said sealed edge section (21a, 21b) between the wearer-facing top layer (15) and the moisture barrier (12).

Description

Technical Field

[0001] The present disclosure relates to a washable and reusable absorbent undergarment. Background Art

[0002] Absorbent articles, such as absorbent undergarments, are worn to absorb bodily fluids, such as urine and vaginal fluids. A washable and reusable absorbent undergarment comprises a fabric of woven or knitted material. Traditionally, such washable and reusable absorbent undergarments include an integral absorbent assembly that is positioned toward the wearer's crotch region when the undergarment is worn. After use, the absorbent undergarment is washed or cleaned before reuse.

[0003] Reusable absorbent underwear can be suitable for different volumes of body fluids, from small amounts to medium or large amounts of body fluids.

[0004] There is a need for reusable absorbent underwear, particularly those suitable for medium to high flows of bodily fluids, that is comfortable to wear and provides a good fit and aesthetics. It would be desirable to provide reusable absorbent underwear suitable for varying flows of bodily fluids, wherein the required capacity for absorbing bodily fluids is provided without unnecessary bulk and / or aesthetically undesirable effects, such as undesirable folds and / or creases. Summary of the Invention

[0005] It is an object of the present invention to meet one or more of the above needs, or to provide a useful alternative.

[0006] This object is met by a washable and reusable absorbent underwear according to claim 1 and a washable and reusable absorbent assembly for underwear according to claim 27 .

[0007] Thus, a washable and reusable undergarment is provided that includes one or more fabric panels forming a front side and a back side, the front side and the back side being joined so that the undergarment defines a waist opening and a pair of leg openings, wherein a crotch region extends between the leg openings. The central longitudinal axis of the undergarment extends along the one or more fabric panels of the undergarment in a direction from the back side toward the front side, and the transverse axis of the undergarment extends along the one or more fabric panels perpendicular to the central longitudinal axis and divides the undergarment into the front side and the back side.

[0008] In light of the above, the central longitudinal axis is centrally located, as viewed across the total transverse width of the underwear. The transverse axis divides the underwear into a front side and a back side. The location of the transverse axis, i.e., the division between the front and back sides, can be determined by unfolding the entire underwear, with the back facing the support surface and the front facing the viewer. The waist edge of the front of the underwear will be superimposed on the waist edge of the back of the underwear. When the underwear is laid flat in this manner, the front of the underwear faces the viewer, the back of the underwear faces the support surface, and the transverse axis extends between them, i.e., along the fold formed between the front and back sides in the crotch region of the underwear. Therefore, the transverse axis can be the central transverse axis and centrally located, as viewed across the total longitudinal length of the underwear.

[0009] The underwear further comprises an absorbent assembly disposed in at least a portion of the crotch region and comprising a top layer facing the wearer and a moisture barrier superimposed along a height axis perpendicular to the longitudinal axis and the transverse axis. Optionally, the absorbent assembly further comprises one or more intermediate layers superimposed between the top layer and the moisture barrier along the height axis.

[0010] The absorbent assembly is configured to absorb fluid contaminants, such as urine or menstrual fluid, that may contact the contaminated area located in the central crotch region of the underwear. The absorbent assembly may be permanently attached to the one or more fabric pieces. For example, the absorbent assembly may be permanently attached to the one or more fabric pieces by one or more mechanical joints, such as seams.

[0011] The wearer-facing top layer is arranged to face the user's skin when the underwear is in use.

[0012] The moisture barrier prevents liquid from leaking through the absorbent assembly and can be in the form of a liquid-impermeable barrier layer, for example. However, in other variations, the moisture barrier can be a liquid-impermeable coating, for example, provided on the garment-facing side of the intermediate layer, or alternatively, on the wearer-facing side of the fabric sheet underlying the intermediate layer or layers.

[0013] The optional one or more intermediate layers may, for example, include one or more absorbent layers and / or auxiliary layers, such as a wicking layer.

[0014] In addition, the wearer-facing top layer of the absorbent assembly defines a circumferential outer edge of the absorbent assembly. For example, at least the wearer-facing top layer can extend in a plane spanned by the transverse axis and the longitudinal axis so as to substantially coincide with the circumferential outer edge of the absorbent assembly.

[0015] When wearing an underwear, most fluid contaminants, such as urine or menstrual fluid, will contact the central crotch region of the underwear, i.e., the insult zone. Therefore, the portion of the peripheral outer edge surrounding the central crotch region and the insult zone of the absorbent assembly is relatively susceptible to leakage, and an effective seal is required to prevent fluid from leaking from the absorbent assembly via the peripheral outer edge.

[0016] However, some portions of the circumferential outer edge may be less susceptible to leakage. For example, portions of the circumferential outer edge that are relatively far from the contaminated area of the undergarment may be less susceptible to leakage because fluid received at the contaminated area would need to travel a relatively long distance to reach portions closer to the circumferential outer edge. Therefore, portions of the circumferential outer edge that are believed to be less susceptible to leakage may have a flat, flexible, continuous seal while still providing an adequate seal to prevent fluid from leaking from the absorbent assembly via the circumferential outer edge.

[0017] As proposed herein, the peripheral outer edge comprises one or more sealed edge segments, wherein the bottom surface of the wearer-facing top layer is sealingly attached to the top surface of the moisture barrier, and the bottom surface of the moisture barrier or the bottom surface of the wearer-facing top layer is directly attached to the top surface of at least one fabric sheet. The sealed edge segments provide a continuous seal along the sealed edge segments and between the wearer-facing top layer and the moisture barrier. Thus, the sealed edge segments provide a continuous seal to prevent fluid from leaking from the absorbent assembly through the sealed edge segments.

[0018] As used herein, "direct attachment" includes that two adjacent layers may be directly joined via a fluid seal to form a fluid tight joint.

[0019] The sealed edge section can be selected to be a portion of the circumferential outer edge of the absorbent assembly that is less prone to leakage. For example, this can be a portion of the circumferential outer edge that is relatively far away from the contaminated area of the absorbent assembly. As a result, fluid from the fluid contamination can be distributed throughout the relatively large volume of the absorbent assembly before reaching the circumferential outer edge, meaning that little or no fluid will reach the circumferential outer edge when the absorbent article is in use. Furthermore, the sealed edge section can be selected based on the comfort and fit of the underwear. Examples of such areas include areas of the absorbent assembly that face the front and / or back of the underwear.

[0020] Thus, in each sealed edge segment, the fluid seal provides a continuous seal along the sealed edge segment as seen in one or more directions along the circumferential direction.

[0021] Thus, each sealed edge segment may be arranged to hinder leakage of fluid from the absorbent assembly via the sealed edge portion to outside the circumferential outer edge.

[0022] As will be appreciated from the foregoing, the arrangement of the sealed edge segments of the circumferential outer edge thus effectively prevents fluid from leaking from the absorbent assembly via the sealed edge segments. Thus, the one or more sealed edge segments will effectively prevent fluid from leaking from a portion of the circumferential outer edge that is located relatively far from the insult area of the absorbent assembly through the sealed edge segments to the outside of the circumferential outer edge.

[0023] Thus, at least a portion of the circumferential outer edge can, for example, form a sealed front edge section of the absorbent assembly and face the front of the underwear. Thus, at least a portion of the front outer edge of the absorbent assembly can include a sealed edge section, along which a continuous seal is formed between the top layer facing the wearer and the moisture barrier, so as to prevent fluid from leaking from the absorbent assembly via the sealed edge section to the outside of the circumferential outer edge. When at least a portion of the front edge of the absorbent assembly has a sealed edge section, the front edge region can adapt to the body shape and movements of the user. In addition, the shape of the circumferential outer edge of the absorbent assembly in the front edge region can be selected more freely, since there is less need to consider leakage from the absorbent assembly.

[0024] At least a portion of the circumferential outer edge can form a sealed rear edge section of the absorbent assembly and face the rear portion of the underwear. Therefore, at least a portion of the rear outer edge of the absorbent assembly can include a sealed edge section that forms a continuous seal along the sealed edge section between the top layer facing the wearer and the moisture barrier so as to prevent fluid from leaking from the absorbent assembly to the outside of the circumferential outer edge via the sealed edge section. When at least a portion of the rear edge of the absorbent assembly has a sealed edge section, the rear edge region of the absorbent assembly can adapt to the body shape and movement of the user. In addition, the shape of the circumferential outer edge of the absorbent assembly in the rear edge region can be more freely selected because there is less need to consider leakage from the absorbent assembly.

[0025] In another example of an undergarment disclosed herein, the absorbent assembly may include a sealed front edge segment facing the front of the undergarment and a sealed rear edge segment facing the rear of the undergarment. Thus, the circumferential outer edge of the absorbent assembly may include a portion of the front edge including the sealed front edge segment facing the front of the undergarment and a portion of the rear edge including the sealed rear edge segment facing the rear of the undergarment, as described above.

[0026] With regard to the term "circumferential outer edge portion" or "portion of the circumferential outer edge" as used herein, it should be understood that a portion of the circumferential outer edge extends along the circumferential direction of the circumferential outer edge.

[0027] The first fluid seal is arranged to extend between the bottom surface of the top layer facing the wearer and the top surface of the moisture barrier in one or more sealed edge sections. One or more optional intermediate layers in the absorbent assembly are arranged not to extend all the way to the circumferential outer edge of the absorbent assembly (as viewed in the transverse and / or lateral directions). This will enable a flatter and more flexible seal to be formed, thereby better adapting to the wearer's body.

[0028] Thus, as used herein, the term "first fluid seal" refers to a fluid seal that provides a continuous seal along the sealed edge segment between the wearer-facing topsheet and the moisture barrier. Thus, the first fluid seal provides a continuous seal in a plane spanned by the longitudinal axis and the transverse axis and between the wearer-facing topsheet and the moisture barrier.

[0029] The first fluid seal may extend along a circumferential outer edge of the one or more sealed edge segments at a distance from the circumferential outer edge of less than 5 mm, such as less than 2 mm, such as less than 1 mm. For example, the distance between the first fluid seal and the circumferential outer edge measured along any direction in a plane spanned by the longitudinal axis and the transverse axis may be less than 5 mm, such as less than 2 mm, such as less than 1 mm from the circumferential outer edge.

[0030] For example, the first fluid seal may be arranged to substantially coincide with the peripheral outer edge of the absorbent assembly.

[0031] For example, the fluid seal can be arranged to engage the circumferential outer edge of the wearer-facing top layer with the circumferential outer edge of the moisture barrier. For example, the first fluid seal can extend generally along the circumferential outer edge of the wearer-facing top layer and the moisture barrier of the absorbent assembly.

[0032] Alternatively, in one or more sealed edge sections, the first fluid seal may be arranged to extend along the circumferential outer edge and be at a distance from the circumferential outer edge.

[0033] For example, the first fluid seal may be arranged to extend along the circumferential outer edge and at a constant distance from the circumferential outer edge, ie the first fluid seal has a shape following the contour of the circumferential outer edge.

[0034] In another example, the first fluid seal may be arranged to extend at a varying distance from the circumferential outer edge.Thus, the shape of the first fluid seal may deviate from the contour of the circumferential outer edge.

[0035] For example, the distance may be less than 5 mm. For example, the distance may be less than 2 mm, such as less than 1 mm.

[0036] Direct joining of the wearer-facing topsheet and the moisture barrier means that the absorbent assembly can be relatively thin at the location of the first fluid-tight joint, thereby reducing the stiffness and bulk of the fluid-tight joint to help the undergarment more easily adapt to the wearer's body shape and movements.

[0037] The second fluid seal is arranged to extend between the bottom surface of the moisture barrier or the bottom surface of the wearer-facing top layer and the top surface of the at least one fabric sheet along the circumferential outer edge in one or more sealed edge segments at a distance from the circumferential outer edge. The second fluid seal may be provided at a distance of less than 5 mm, for example less than 2 mm, for example less than 1 mm, from the circumferential outer edge.

[0038] In addition to providing an additional fluid-tight joint along the one or more sealed edge sections, the second fluid seal provides attachment of the absorbent assembly to the fabric sheet at least in the area of the circumferential outer edge comprising the sealed edge section.

[0039] Thus, a washable and reusable underwear can be provided which is suitable for absorbing body fluid flows while providing a satisfactory fit to the user's body and having an appearance similar to conventional underwear.

[0040] In one variation of the sealed edge segments disclosed herein, an undergarment having an absorbent assembly is provided wherein a first fluid seal is arranged to extend between a bottom surface of a top layer facing the wearer of one or more sealed edge segments and a top surface of a moisture barrier, as described above. The first fluid seal extends along a circumferential outer edge of the one or more sealed edge segments at a distance of less than 5 mm, such as less than 2 mm, and for example less than 1 mm, from the circumferential outer edge.

[0041] At least in the sealed edge sections, the one or more optional intermediate layers in the absorbent assembly are arranged not to extend all the way to the peripheral outer edges of the absorbent assembly (as seen in the transverse and / or lateral direction).

[0042] The first fluid seal provides a continuous seal between the wearer-facing topsheet and the moisture barrier along a sealed edge section. Thus, the first fluid seal provides a continuous seal in a plane spanned by the longitudinal axis and the transverse axis and between the wearer-facing topsheet and the moisture barrier.

[0043] The second fluid seal is arranged to extend between the bottom surface of the moisture barrier and the top surface of the at least one fabric sheet at a distance from the circumferential outer edge in one or more sealed edge segments along the circumferential outer edge. The second fluid seal may be provided at a distance of less than 5 mm, such as less than 2 mm, for example less than 1 mm, from the circumferential outer edge.

[0044] For example, the second fluid seal may be arranged to substantially coincide with the peripheral outer edge of the absorbent assembly.

[0045] For example, the second fluid seal may be arranged so as to engage the circumferential outer edge of the top layer facing the wearer and the circumferential outer edge of the moisture barrier layer. For example, the second fluid seal may extend generally along the circumferential outer edge of the top layer facing the wearer and along the circumferential outer edge of the moisture barrier layer of the absorbent assembly.

[0046] Optionally, in one or more sealed edge sections, the second fluid seal may be arranged to extend along the circumferential outer edges of the wearer-facing topsheet and the moisture barrier at a certain distance from the circumferential outer edges. For example, the second fluid seal may be arranged to extend along the circumferential outer edges of the wearer-facing topsheet and the moisture barrier at a constant distance from the circumferential outer edges, i.e. the second fluid seal has a shape that follows the contours of the circumferential outer edges of the wearer-facing topsheet and the moisture barrier along the sealed edge section.

[0047] In addition to providing an additional fluid-tight joint along the one or more sealed edge sections, the second fluid seal provides attachment of the absorbent assembly to the fabric sheet at least in the area of the circumferential outer edge comprising the sealed edge section.

[0048] Thus, a washable and reusable underwear can be provided which is suitable for absorbing body fluid flows while providing a satisfactory fit to the user's body and having an appearance similar to conventional underwear.

[0049] In another example, the second fluid seal may be arranged to extend at a varying distance from the circumferential outer edge of the top layer facing the wearer. Thus, the shape of the second fluid seal may deviate from the contour of the circumferential outer edge of the top layer facing the wearer.

[0050] In another variation of the sealed edge segments disclosed herein, an undergarment having an absorbent assembly is provided wherein a first fluid seal is arranged to extend between a bottom surface of a top layer facing the wearer of one or more sealed edge segments and a top surface of a moisture barrier, as described above. The first fluid seal extends along a circumferential outer edge of the one or more sealed edge segments at a distance of less than 5 mm, such as less than 2 mm, and for example less than 1 mm, from the circumferential outer edge.

[0051] The first fluid seal provides a continuous seal between the wearer-facing topsheet and the moisture barrier along the sealed edge section. Thus, the first fluid seal provides a continuous seal in a plane spanned by the longitudinal axis and the transverse axis and between the wearer-facing topsheet and the moisture barrier.

[0052] Also in this variation, at least in the sealed edge sections, the one or more optional intermediate layers in the absorbent assembly are arranged so as not to extend all the way to the circumferential outer edge (as viewed in the transverse and / or lateral directions) of the absorbent assembly. However, in this variation, the wearer-facing top layer may extend beyond the moisture barrier, and the bottom surface of the wearer-facing top layer may be directly attached to the top surface of the fabric sheet. Thus, in the sealed edge sections, the wearer-facing top layer extends beyond the outer edge (as viewed in the transverse and / or lateral directions) of the moisture barrier so that its bottom surface may be attached to the top surface of the fabric sheet outside of the outer edge of the moisture barrier.

[0053] The wearer facing top layer may extend beyond the moisture barrier by a distance of 1 to 30 mm, wherein the distance between the first fluid seal 24a and the outer edge of the wearer facing top layer may be 1-20 mm, preferably 1-10 mm, more preferably 3-10 mm.

[0054] The second fluid seal is arranged to extend between the bottom surface of the top layer facing the wearer and the top surface of the at least one fabric sheet along the circumferential outer edge in the one or more sealed edge segments at a distance from the circumferential outer edge. The second fluid seal extends along the circumferential outer edge of the one or more sealed edge segments and at a distance from the circumferential outer edge, the distance from the circumferential outer edge being less than 5 mm, for example less than 2 mm, for example less than 1 mm.

[0055] Thus, a washable and reusable underwear can be provided which is suitable for absorbing body fluid flows while providing a satisfactory fit to the user's body and having an appearance similar to conventional underwear.

[0056] For example, the second fluid seal may be arranged to substantially coincide with the peripheral outer edge of the absorbent assembly (ie with the peripheral outer edge of the top layer facing the wearer).

[0057] For example, the second fluid seal may be arranged to join the peripheral outer edge of the wearer-facing top layer to the fabric sheet.For example, the second fluid seal may extend generally along the peripheral outer edge of the wearer-facing top layer of the absorbent assembly.

[0058] Optionally, in one or more sealed edge sections, the second fluid seal may be arranged to extend along and at a distance from the circumferential outer edge of the top layer facing the wearer.

[0059] For example, the second fluid seal may be arranged to extend along and at a constant distance from the circumferential outer edge of the top layer facing the wearer, i.e. the second fluid seal has a shape that follows the contour of the circumferential outer edge of the top layer facing the wearer along the sealed edge segment.

[0060] In another example, the second fluid seal may be arranged to extend at a varying distance from the circumferential outer edge of the top layer facing the wearer. Thus, the shape of the second fluid seal may deviate from the contour of the circumferential outer edge of the top layer facing the wearer.

[0061] For example, the distance may be less than 5 mm. For example, the distance may be less than 2 mm, such as less than 1 mm from the peripheral outer edge of the top layer facing the wearer.

[0062] In addition to providing a further fluid seal along the one or more sealed edge sections, the second fluid seal provides attachment of the absorbent assembly to the fabric sheet at least in the area of the circumferential outer edge comprising the sealed edge section.

[0063] Fluid seals can be achieved in several different ways.

[0064] The first fluid seal and / or the second fluid seal can be a fluid-tight joint achieved by sealingly joining the layers of the absorbent assembly. For example, the fluid-tight joint can be a fluid-tight adhesive joint (such as a hot melt adhesive joint) or a fluid-tight weld joint (such as a heat weld joint or an ultrasonic weld joint).

[0065] The fluid tight joint may be a fluid tight tape, such as a double sided tape, where the tape is a tape having adhesive on both sides so that it can adhere to both the upper and lower layers.

[0066] In one example, the first fluid-tight seal can be achieved by sealingly joining the layers of the absorbent assembly together with a first fluid-tight joint. For example, the wearer-facing top layer and the moisture barrier can be directly joined by a first fluid-tight joint (such as a fluid-tight adhesive joint, such as a hot melt adhesive joint) or a fluid-tight welded joint (such as a heat welded joint or an ultrasonic welded joint) to provide an adhesive connection between the wearer-facing top layer and the moisture barrier.

[0067] For example, the bottom surface of the wearer-facing topsheet and the top surface of the moisture barrier may be directly joined by a fluid-tight double-sided tape.

[0068] The second fluid seal can be achieved by sealingly joining the layers of the absorbent assembly together with a second fluid-tight joint. For example, the bottom surface of the moisture barrier or the bottom surface of the wearer-facing top layer can be directly joined to the top surface of the fabric sheet by a fluid-tight joint (such as a fluid-tight adhesive joint, such as a hot melt adhesive joint) or a fluid-tight welded joint (such as a heat welded joint or an ultrasonic welded joint), thereby providing an adhesive connection of the wearer-facing top layer or moisture barrier to the fabric sheet.

[0069] For example, the bottom surface of the moisture barrier or the bottom surface of the wearer-facing topsheet may be directly bonded to the top surface of the fabric sheet by a fluid-tight double-sided tape.

[0070] For example, and in one variation of the underwear, the first fluid seal can be achieved by sealingly joining the bottom surface of the top layer facing the wearer and the top surface of the moisture barrier by a first fluid-tight joint, and the second fluid seal can be achieved by directly joining the bottom surface of the moisture barrier to the top surface of the fabric piece by a second fluid-tight joint. The first and second fluid-tight joints can be fluid-tight adhesive joints (such as hot melt adhesive joints) or fluid-tight welded joints (such as heat welded joints or ultrasonic welded joints). For example, the first and second fluid-tight joints can be achieved by fluid-tight double-sided tape.

[0071] For example, and in another variation of the underwear, the first fluid seal can be achieved by sealingly joining the bottom surface of the top layer facing the wearer and the top surface of the moisture barrier by a first fluid-tight joint, and the second fluid seal can be achieved by directly joining the bottom surface of the top layer facing the wearer to the top surface of the fabric piece by a second fluid-tight joint. The first fluid-tight joint and the second fluid-tight joint can be fluid-tight adhesive joints (such as hot melt adhesive joints) or fluid-tight welded joints (such as heat welded joints or ultrasonic welded joints). For example, the first fluid-tight joint and the second fluid-tight joint can be achieved by fluid-tight double-sided tape.

[0072] As will be appreciated from the foregoing, the arrangement of the sealed edge segments of the circumferential outer edge will thus effectively prevent fluid from leaking from the absorbent assembly via the sealed edge segments. Thus, the one or more sealed edge segments will effectively prevent fluid from leaking through the sealed edge segments resulting from fluid contamination, which typically occurs in a fluid contamination region of the absorbent assembly relatively far from the circumferential outer edge.

[0073] When wearing an underwear, most fluid insults, such as urine or menstrual fluid, will contact the central crotch region of the underwear, i.e., the insult zone. It has been recognized that due to the proximity of the leg openings to the insult zone, combined with the wearer's movements, these areas of the underwear are more susceptible to leakage than other areas.

[0074] In one variation of the undergarments described herein, a pair of sealed assembly sides may be positioned opposite one another and on each side of the longitudinal axis (y), wherein optionally each sealed assembly side extends longitudinally along at least a portion of the crotch region of the undergarment.

[0075] In each sealed component side, the top surface of the top layer facing the wearer is sealingly attached to the moisture barrier or to one or more fabric pieces. By means of a sealed attachment from the top surface of the top layer facing the wearer to the moisture barrier or to one or more fabric pieces in the sealed component side, the risk of leakage from the absorbent component can be further reduced. This is particularly desirable in the crotch area of underwear. However, as mentioned above, the sealed component side may risk becoming stiffer and more bulky than the sealed edge sections.

[0076] In each sealed assembly side, at least a portion of the peripheral outer edge of the absorbent assembly follows the contour of the corresponding leg opening of the undergarment.

[0077] Each sealed component side may include a fluid-sealing member that provides a continuous seal between the top surface of the top layer facing the wearer and the bottom surface of the moisture barrier or the bottom surface of one or more fabric sheets in the sealed absorbent component side so as to prevent fluid from leaking from the absorbent component through the sealed component side to the outside of the circumferential outer edge.

[0078] Therefore, the sealed component side may include a fluid-tight member that is arranged to hinder fluid from leaking from the absorbent assembly to the outside of the circumferential outer edge via the sealed component side. In this case, the fluid-tight member is a fluid-tight member that provides a continuous seal along the sealed component side between the top layer facing the wearer and the moisture barrier. The fluid-tight member in the sealed component side can, for example, be provided by a sealing strip that is arranged to fold from the top surface of the top layer facing the wearer, over the circumferential outer edge of the top layer facing the wearer and any intermediate layer, over the circumferential outer edge of the moisture barrier, and fold to the bottom surface of the moisture barrier. Alternatively, the sealing strip can be arranged to fold from the top surface of the top layer facing the wearer, over the circumferential outer edge of the top layer facing the wearer and any intermediate layer, over the circumferential outer edge of the moisture barrier and over the circumferential outer edge of one or more fabric sheets to the bottom surface of one or more fabric sheets.

[0079] The fluid sealing member may be, for example, an elastic band.

[0080] Additionally, each sealed assembly side portion may extend longitudinally along at least a portion of the crotch region of the undergarment.

[0081] As will be understood from the above, the sealed component side parts themselves may have an extension in the transverse direction as well as in the longitudinal axis. The sealed component side parts extending longitudinally along at least a portion of the crotch region of the underwear means that the sealed component side parts have an extension in at least a portion of the crotch region at least along the longitudinal axis.

[0082] Depending on the size and style of the undergarment, the longitudinal length of the crotch region can vary significantly.

[0083] Alternatively, the sealed component side portions may have a longitudinal extent over the entire crotch region of the underwear. For example, the sealed component side portions may have a longitudinal extent that extends beyond the crotch region of the underwear toward the front and / or back of the underwear. This variation may be particularly useful for underwear styles with relatively short crotch regions (i.e., low leg cut styles, such as boxer or short styles).

[0084] Alternatively, the sealed component side portions may have a longitudinal extension over only a portion of the crotch region of the underwear. For example, the sealed component side portions may have a longitudinal extension over 20 to 80% of the crotch region, such as 25 to 75%. This variation may be particularly useful for underwear styles with relatively long crotch regions (i.e., high leg cut styles, such as thong or Brazilian styles).

[0085] Optionally, in some variations, in each sealed assembly side, at least a portion of the circumferential outer edge of the absorbent assembly follows the contour of the corresponding leg opening of the undergarment.

[0086] Optionally, in each sealed assembly side, at least a portion of the peripheral outer edge of the absorbent assembly substantially coincides with the contour of the corresponding leg opening of the undergarment.

[0087] For example, as described above, when the sealed assembly sides have a longitudinal extension over a portion of the crotch region of the undergarment, the peripheral outer edges of the absorbent assembly may substantially coincide with the contours of the corresponding leg openings throughout the entire portion of the crotch region.

[0088] Thus, the sealed assembly side portions will extend over at least a portion of the longitudinal extension of the leg openings of the underwear. Alternatively, the sealed assembly side portions may extend over the entire longitudinal extension of the leg openings of the underwear.

[0089] Alternatively, each fluid seal in the sealed assembly side portion may extend continuously over a longitudinal side seal length. In other words, the side seal length is the extension of the sealed assembly side portion as seen along the longitudinal axis.

[0090] For example, the longitudinal side seal length may be at least 5 cm, such as at least 7 cm. For example, the longitudinal side seal length may be at least 10 cm.

[0091] For example, the longitudinal side seal length may be less than 45 cm, such as less than 35 cm.

[0092] Thus, the longitudinal side seal length may for example be in the range of 5 cm to 45 cm, such as 10 cm to 35 cm.

[0093] In this way, the longitudinal side seal length can be selected to provide appropriate protection against fluid leakage.

[0094] However, as discussed above, the configuration of the seals for the sides of the sealed assembly may increase the stiffness of the absorbent assembly at the sealed locations.

[0095] By combining one or more sealed component sides with one or more sealed edge sections as described herein, which have a flatter and more flexible seal, it has been found possible to provide an undergarment that provides adequate resistance to fluid leakage and a better fit. For example, unwanted folds or creases visible from the front or back of the undergarment when worn by the user can be reduced or avoided.

[0096] Thus, in addition to a pair of sealed assembly side portions located opposite each other and on each side of the longitudinal axis y and extending longitudinally along at least a portion of the crotch region, the circumferential outer edge advantageously comprises one or more portions provided with sealed edge sections.

[0097] Optionally, the peripheral outer edge forms a rear edge portion, the rear edge portion being the portion of the peripheral outer edge located longitudinally between the rearmost longitudinal ends of the sealed assembly sides and the rearmost end of the absorbent assembly.

[0098] Optionally, the rear edge portion comprises one or more sealed rear edge sections.

[0099] An absorbent assembly having a circumferential outer edge forming a rear edge portion, the rear edge portion extending longitudinally from the rearmost longitudinal end of the sealed assembly side portion towards the rear of the underwear, enabling variants with an extended rear side of the absorbent assembly to be achieved, which may be particularly suitable for underwear intended for nighttime use. By including such a rear edge portion with one or more sealed rear edge sections, a better fit and more versatility can be achieved when it comes to selecting the shape of the rear edge portion, as outlined above.

[0100] Optionally, the entire rear edge portion constitutes a sealed edge section.Thus, the entire rear edge portion is sealed to prevent leakage from the absorbent assembly.

[0101] The top layer and the moisture barrier layer facing the wearer can extend beyond one or more optional intermediate layers in at least a portion of the rear edge portion (such as in the entire rear edge portion). Like this, the rear edge portion can be relatively thin, and therefore can provide better coordination for the user.

[0102] Advantageously, the wearer-facing top layer and the moisture barrier may extend beyond the one or more optional intermediate layers in at least a portion of the rear edge portion, for example, in the entire rear edge portion extending longitudinally along the rear portion of the absorbent assembly. In other words, the one or more optional intermediate layers may not extend beyond the sealed assembly side portions in a direction toward the rear portion of the absorbent assembly. As a result, the rear portion of the absorbent assembly may be relatively thinner, thereby providing a better fit for the user.

[0103] The rear edge portion may have a rear edge length along the longitudinal axis.

[0104] The rear edge length of rear edge portion can for example be at least 2mm, such as at least 4mm.Alternatively, the rear edge length of rear edge portion can be extended, for example at least 2cm, for example at least 4cm or at least 8cm.The rear edge length of rear edge portion can optionally be adapted to make absorbent assembly extend on the whole longitudinal extension range of underwear back side, promptly extend to the waist of underwear, such as extend to the waistband of underwear.In other selection, rear edge portion can be adapted to make absorbent assembly extend on a part of extension range of underwear back side, make between the waist of underwear (for example waistband) and the rear end of absorbent assembly, distance.For example, rear edge length can be less than 40cm, for example less than 30cm or less than 25cm.Alternatively, rear edge length can be 2cm to 40cm, for example 4cm to 30cm.

[0105] Alternatively or additionally, the peripheral outer edge may form a front edge portion, which is the portion of the peripheral edge located longitudinally between the forward-most longitudinal ends of the sealed assembly sides and the forward-most end of the absorbent assembly.

[0106] Optionally, the front edge portion comprises one or more sealed front edge sections.

[0107] The present invention discloses an absorbent assembly having a circumferential edge forming a front edge portion, the front edge portion extending longitudinally from the forward-most longitudinal end of the sealed assembly side portion toward the front of the underwear, making it possible to provide variants having an extended front side of the absorbent assembly, which may be particularly suitable for underwear intended for nighttime use. By including such a front edge portion of one or more sealed front edge sections, a better fit and more versatility can be achieved when it comes to selecting the shape of the front edge portion, as outlined above.

[0108] Optionally, the entire front edge portion constitutes a sealed edge section.Thus, the entire front edge portion is sealed to prevent leakage from the absorbent assembly.

[0109] Alternatively, the wearer-facing top layer and the moisture barrier may extend beyond one or more optional intermediate layers in at least a portion of the leading edge portion (e.g., throughout the leading edge portion). Like this, the leading edge portion may be relatively thin, thereby providing a better fit for the user.

[0110] Optionally, the wearer-facing top layer and the moisture barrier may extend beyond the one or more optional intermediate layers throughout the entire portion of the absorbent assembly that extends longitudinally along the front edge portion. In other words, the one or more optional intermediate layers may not extend beyond the sealed assembly side portions in the longitudinal direction toward the front of the absorbent assembly. As a result, the front edge portion of the absorbent assembly may be relatively thin, thereby providing a better fit for the user.

[0111] The front edge portion may have a front edge length along the longitudinal axis.

[0112] The front edge length of the front edge portion can for example be at least 2mm, such as at least 4mm. Alternatively, the front edge length of the front edge portion can be extended, for example can be 2cm, for example at least 4cm or at least 10cm. The front edge length of the front edge portion can optionally be adapted to make the absorbent assembly extend on the whole longitudinal extension range of the underwear front side, namely extend always to the waist of the underwear, such as extend to the waistband of the underwear. In other selections, the front edge portion can be adapted to make the absorbent assembly extend on a part of extension range of the underwear front side, so that there is a distance between the waist (for example waistband) of the underwear and the front end of the absorbent assembly. For example, the front edge length can be less than 40cm, such as less than 30cm or less than 25cm. Alternatively, the front edge length can be 2cm to 40cm, for example 4cm to 30cm.

[0113] For example, in some variations, the absorbent assembly may include sealed assembly sides and a sealed rear edge section, wherein the rear edge length is equal to or greater than the side seal length. This may be particularly suitable for undergarments intended for nighttime use. For example, in some variations, the absorbent assembly may include sealed assembly sides, a sealed rear edge section, and a sealed front edge section, wherein the rear edge length and / or the front edge length is equal to or greater than the side seal length.

[0114] Alternatively, as will be appreciated from the above, the circumferential outer edge may consist of a sealed front edge section, a sealed rear edge section and a pair of sealed assembly sides interconnecting the front and rear edge portions.

[0115] Optionally, and providing for many alternative variations, such as several of the variations described above, the circumferential outer edge can be comprised of a first sealed edge segment, a second sealed edge segment, and a pair of sealed assembly sides that interconnect the first sealed edge segment and the second sealed edge segment.

[0116] The shape of the absorbent assembly may be adapted to the design of, for example, an undergarment, taking into account the need for adequate absorption and a satisfactory fit.

[0117] The absorbent assembly may include a front edge directed toward the front of the underwear, a rear edge directed toward the rear of the underwear, and a pair of side edges, wherein each side edge is at least partially directed toward a respective leg opening and connects the front and rear edges.

[0118] Each side edge may be arranged at least partially along a respective leg opening of the underwear. "Along" in this context means that the side edge follows the shape of the leg opening and is arranged adjacent to or at the respective leg opening.

[0119] For example, each side edge may be at least partially arranged at a corresponding leg opening of the underwear.This means that the outer edge of the underwear towards each leg opening at least partially comprises the side edge of the absorbent assembly.

[0120] For example, the minimum transverse assembly crotch width of the absorbent assembly, ie, the minimum distance between the side edges of the absorbent assembly, can be equal to the minimum transverse underwear crotch width of the central region of the underwear.

[0121] For example, each side edge of the absorbent assembly may be arranged at a corresponding leg opening of the undergarment in at least the front central region.

[0122] For example, substantially the entirety of each side edge of the absorbent assembly may be positioned within a corresponding leg opening of the undergarment.

[0123] In other variations, each side edge can be arranged at least partially along a corresponding leg opening of the underwear and at a distance from the corresponding leg opening. For example, each side edge can be arranged entirely along a corresponding leg opening and at a distance from the leg opening.

[0124] In some variations, the side edges may include concave portions, as seen toward the central longitudinal axis Y. For example, the side edges may be generally concave, thereby allowing the shape of the absorbent assembly to be relatively wider toward the front and back of the underwear, and narrower in the crotch region of the underwear, as described above.

[0125] In some variations, the front edge can project from the transverse axis. Thus, at the location of the central longitudinal axis y, the front edge can project beyond the side edges of the absorbent assembly toward the front of the undergarment. This can be beneficial for the fit of the undergarment to the body and helps avoid unwanted creases in the fabric sheet.

[0126] The rear edge of the absorbent assembly may be shaped to allow for a proper fit and comfort for the user.

[0127] As described above, the absorbent assembly comprises a wearer-facing top layer, a moisture barrier, and optionally one or more intermediate layers superimposed between the wearer-facing top layer and the moisture barrier along a height axis perpendicular to the central longitudinal axis and the transverse axis. Thus, the absorbent assembly comprises at least two layers, namely, the wearer-facing top layer and the moisture barrier. Such an absorbent assembly is particularly suitable for light to moderate flow rates of body fluids.

[0128] Optionally, the absorbent assembly comprises a wearer-facing top layer, a moisture barrier and at least one intermediate layer.

[0129] Optionally, the absorbent assembly comprises a wearer-facing top layer, a moisture barrier and at least two intermediate layers.

[0130] Optionally, the absorbent assembly comprises a top layer facing the wearer, a moisture barrier, and at least three intermediate layers. Thus, the absorbent assembly comprises at least four layers plus the moisture barrier, which in some embodiments is formed by a moisture barrier layer. Thus, the ability of the absorbent assembly to absorb relatively high body fluid flows can be further improved, for example, to provide an absorbent assembly suitable for high body fluid flows.

[0131] For example, the absorbent assembly may include no more than nine layers.

[0132] Thus, the absorbent assembly may comprise two, three, four, five, six, seven or eight intermediate layers.

[0133] As used herein, a "layer" is a layer of material. A layer can be made of laminated materials.

[0134] The longitudinal and transverse extension (ie the outer shape) of the absorbent assembly itself is defined at least by the longitudinal and transverse extension of the top layer facing the wearer.

[0135] In some variations, one or more optional intermediate layers may be arranged to have longitudinal and lateral extensions that are inconsistent with the extension of the absorbent assembly.

[0136] In some variations, one or more optional intermediate layers are arranged so as not to extend all the way to the peripheral outer edge of the absorbent assembly.

[0137] For example, all optional intermediate layers of the absorbent assembly may not have longitudinal and lateral extensions that are substantially consistent with the extension of the absorbent assembly. That is, all layers of the absorbent assembly may not have the same longitudinal and lateral extensions.

[0138] In other variations, the longitudinal and / or lateral extension of one or more optional intermediate layers is different from the longitudinal and / or lateral extension of the absorbent assembly.

[0139] The absorbent assembly disclosed herein can be made from synthetic materials or fibers, natural materials or fibers, or blends thereof.The top layer can, for example, have a basis weight of 80-450 gsm, or optionally 80 to 200 gsm.

[0140] Optionally, one or more of the optional intermediate layers are absorbent layers.For example, when the absorbent assembly comprises at least three intermediate layers, at least two of the at least three intermediate layers may be absorbent layers.

[0141] The basis weight of the absorbent layer may, for example, be in the range of 150-450 gsm.

[0142] For example, the absorbent layer may have fibers of natural origin, synthetic fibers, or a blend or mixture of fibers of natural origin and / or synthetic fibers.

[0143] Optionally, one or more optional middle layers can be wicking layers. For example, the wicking layer can be positioned adjacent to the top layer facing the wearer. Optionally, the wicking layer has a basis weight of 180-250 gsm.

[0144] The absorbent assembly of the undergarment may be manufactured integrally with the undergarment, so that the one or more joints joining the absorbent assembly together may also join the absorbent assembly to one or more fabric panels of the undergarment.

[0145] Alternatively, the absorbent assembly of the underwear can be manufactured as a separate component. As mentioned above, the absorbent assembly can also be permanently attached to the underwear using one or more joints when it is manufactured as a separate article.

[0146] While the option of permanently attaching the absorbent assembly to the underwear is preferred, the absorbent assembly may also be releasably attached to the underwear. For example, the garment-facing side of the absorbent assembly may include a fastening member for releasably fastening the absorbent assembly to the underwear. Such a fastening member may be adapted to be attached directly to a fabric sheet of the underwear, or the fastening member may be adapted to be attached to a corresponding fastening member of the underwear.

[0147] Thus, in a second aspect, a washable and reusable absorbent assembly for underwear is provided, comprising a wearer-facing top layer, a moisture barrier, and optionally one or more intermediate layers superimposed between the wearer-facing top layer and the moisture barrier along a height axis perpendicular to the longitudinal axis and the transverse axis, the wearer-facing top layer defining a circumferential outer edge of the absorbent assembly.

[0148] At least a portion of the circumferential outer edge of the absorbent assembly includes one or more sealed edge segments, wherein the bottom surface of the top layer facing the wearer is sealingly attached to the top surface of the moisture barrier, and the moisture barrier or the bottom surface of the top layer facing the wearer is configured to be directly attached to the top surface of at least one fabric piece of the underwear, each sealed edge segment providing a continuous seal along the sealed edge segment between the top layer facing the wearer and the moisture barrier so as to prevent fluid from leaking from the absorbent assembly through the sealed edge segment to the outside of the circumferential outer edge.

[0149] Therefore, all features and advantages explained above with respect to the absorbent assembly of the undergarment are applicable to the absorbent assembly itself and are encompassed by the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0150] The present disclosure will now be described in more detail with reference to the figures shown in the accompanying drawings, in which

[0151] Figure 1 shows a front view of a variation of an absorbent undergarment including an absorbent assembly;

[0152] Figure 2a Shown in a flat, spread-out state. Figure 1 a wearer-facing side view of a first form of the undergarment with the joint between the front and back sides of the undergarment removed;

[0153] Figure 2b Shown in a flat, spread-out state. Figure 1 a second embodiment of the undergarment, viewed from the wearer-facing side, wherein the joint between the front and back sides of the undergarment is removed;

[0154] Figure 2c Shown in a flat, spread-out state. Figure 1 a third embodiment of the undergarment, a wearer-facing side view, wherein the joint between the front and back sides of the undergarment is removed;

[0155] Figure 3a shows a front view of another variation of an absorbent undergarment including an absorbent assembly;

[0156] Figure 3b shows a view from the wearer-facing side of the first version of the undergarment of FIG. 3 when in a flat, laid-out condition, with the joint between the front and back sides of the undergarment removed;

[0157] Figure 3c Shown in a flat, spread-out state. Figure 1 a second embodiment of the undergarment, viewed from the wearer-facing side, wherein the joint between the front and back sides of the undergarment is removed;

[0158] Figure 4 is a schematic cross-sectional view of a variation of a sealing assembly side portion of an absorbent assembly, such as may be used in Figures 1 to 3c In underwear,

[0159] as well as

[0160] Figure 5a -c is a schematic cross-sectional view of different variations of sealed edge section joints through an absorbent assembly, such as may be used Figure 1-3c in underwear. DETAILED DESCRIPTION

[0161] Various aspects of the present disclosure will be described more fully below with reference to the accompanying drawings. However, the embodiments of the absorbent underwear disclosed herein can be implemented in many different forms, such as different sizes and absorbency levels, and should not be construed as limited to the aspects set forth herein. Throughout the drawings in the following detailed description, the same reference numerals will be used to refer to the same elements.

[0162] As used herein, the term "absorbent underwear" refers to a garment worn and intended to be placed against the wearer's skin to absorb and contain body fluids such as urine and vaginal fluids (including menstrual fluid). The underwear can be, for example, an undershirt, panties, pants, or a fabric swimsuit. The underwear is intended for adult users. The underwear can be for female use. The underwear according to the present disclosure is washable, that is, it is intended to be washed or otherwise restored after use for reuse as a sanitary product.

[0163] By "washable" is meant that the absorbent underwear can be cleaned by washing. Thus, the absorbent underwear can be subjected to an aqueous solution containing a detergent without losing its structural characteristics. As part of the washing process, the aqueous solution can be heated to, for example, 40°C or 60°C.

[0164] The term "fabric" as used in this disclosure may refer to a single layer or multiple layers of fabric. The fabric may be knitted or woven.

[0165] "Permanently attached" means that the absorbent assembly is not intended to be separated from the body fabric before, during or after use. The absorbent assembly is not necessarily directly joined to the fabric sheet, but may be attached to the fabric via auxiliary components such as leg opening edges or reinforcement patches.

[0166] Knitting is a method of constructing fabric by interlocking a series of loops of one or more yarns. There are two major categories of knitting, warp knitting and weft knitting.

[0167] Weaving is the method or process of interlacing two yarns of similar material so that they cross each other at right angles to produce a woven fabric. The warp yarns run lengthwise in the fabric and the filler yarns (weft) or filling yarns run from one side to the other.

[0168] Jacquard is a weaving or knitting system that utilizes a universal pattern mechanism to produce complex designs through the use of punched cards that control the pattern produced. Jacquard knitting may be effective for circular knitting, flat knitting, warp knitting, or weft knitting.

[0169] Figure 1 An example of a variation of the washable and reusable absorbent underwear 1 is shown in the form of shorts. However, as outlined above, the underwear 1 proposed herein can have a variety of styles, such as leggings, boxers, hiking pants, high waists, thongs, Brazilian underwear, or other suitable underwear styles. The underwear can be in a form intended to be worn under other clothing. Alternatively, the underwear is in the form of a washable absorbent garment, such as pajamas or sleep pants, yoga pants, swimwear, sweatpants, or shorts.

[0170] The underwear 1 may include one or more fabric panels 2 that form a front side 3 and a back side 4, the front side 3 and the back side 4 being joined so that the underwear 1 defines a waist opening 5 and a pair of leg openings 6a, 6b, with a crotch region 7 extending between the leg openings 6a, 6b. A central longitudinal axis y of the underwear 1 extends along the one or more fabric panels 2 of the underwear 1 in a direction from the back side 4 toward the front side 3, and a transverse axis x of the underwear 1 extends perpendicular to the central longitudinal axis y along the one or more fabric panels 2 and divides the underwear 1 into the front side 3 and the back side 4.

[0171] In view of the above, the central longitudinal axis y will be centrally located when viewed across the total transverse width of the underwear 1. The transverse axis x divides the underwear 1 into the front side 3 and the back side 4. The position of the transverse axis x, i.e., the division between the front side 3 and the back side 4, can be determined by laying the entire underwear 1 flat with the back of the underwear 1 facing the support surface and the front of the underwear 1 facing the viewer, as shown in FIG. Figure 2a As shown, the waist edge of the front portion of the underwear 1 is superimposed on the waist edge of the back portion of the underwear 1. When the underwear 1 is laid flat in this manner, the front side 3 of the underwear 1 faces the viewer, the back side 4 of the underwear 1 faces the support surface, and the transverse axis x extends therebetween, i.e., along the fold between the front side 3 and the back side 4 formed adjacent to the crotch region 7 of the underwear. Thus, when the underwear 1 is worn, the front side 3 will be visible from the front of the wearer, and when the underwear 1 is worn, the back side 4 will be visible from the back of the wearer. As will be understood from the above, the transverse axis x can be the central transverse axis of the underwear 1.

[0172] Figure 1The illustrated undergarment includes a single fabric panel 2 that is cut to form a front side 3 and a back side 4, with a waist opening 5 and leg openings 6a, 6b. However, in other variations, multiple fabric panels may be joined to form the front side 3, the back side 4, and the crotch region 7. For example, the undergarment 1 may include a front panel, a back panel, and a crotch panel. One or more fabric panels may all comprise the same fabric, giving the undergarment a consistent appearance, or one or more fabric panels may comprise different fabrics, for example, to provide an aesthetically pleasing undergarment including, for example, a lace fabric.

[0173] According to the cutting of one or more fabric pieces 2, different underwear styles can be formed. Figure 1 In the underwear style shown, the leg openings 6a, 6b may have a relatively high cut, such as a bikini style or a Brazilian style. In other examples, such as Figure 3a In the underwear style shown, the underwear 1 may include leg portions that extend beyond the crotch region 7 in a direction away from the waist opening 5 when the underwear 1 is worn.

[0174] In order to join the front side 3 and the back side 4 to form the waist opening 5 and the leg openings 6a, 6b, a pair of side joints 17 may be provided, as in the example shown. The side joints 17 and any other joints joining one or more fabric panels 2 may be conventional joints in the art, such as seams made by conventional adhesives and / or mechanical bonding (such as conventional adhesives or sewing techniques).

[0175] Thus, the absorbent underwear 1 can be designed and manufactured according to conventional sewing techniques. For example, the absorbent underwear can include a waistband 14 arranged along the waist opening 5 of the absorbent underwear 1. For example, the absorbent underwear 1 can include edges 22a, 22b arranged along the leg openings 6a, 6b.

[0176] As mentioned above, the central longitudinal axis y of the underwear 1 is defined along one or more fabric pieces 2 of the underwear 1 from the back side 4 towards the front side 3. Figure 1 In the example shown, when the underwear 1 is seen from the front side 3, the central longitudinal axis y will point towards the waist opening 5 of the underwear 1. However, when the underwear 1 is seen from the back side 4 (not shown), the central longitudinal axis y will point away from the waist opening 5 of the underwear 1.

[0177] exist Figure 2a middle, Figure 1 The absorbent underwear 1 is shown in a flat, unfolded state with the side tabs 17 of the underwear 1 removed. As seen in this unfolded state, the central longitudinal axis y is defined along the one or more fabric pieces 2 and in a direction from the back of the underwear 1 towards the front of the underwear 1. Figure 2a , the absorbent underwear 1 is shown from the wearer-facing side of the article 1. Figure 1As shown, one or more fabric sheets 2 will have an outer side 9 facing away from the wearer and an inner side 8 facing in a direction towards the wearer. Thus, Figure 2 shows the underwear 1 seen from the inner side 8 in a flat laid-out state.

[0178] like Figure 2a As shown, the underwear 1 forms leg openings 6a, 6b. The crotch region 7 is defined as the portion of the underwear 1 extending transversely between the leg openings 6a, 6b. Thus, the crotch region 7 has a longitudinal extension corresponding to the longitudinal extension of the leg openings 6a, 6b, as shown in FIG. Figure 2a It will be appreciated that the longitudinal extension of the crotch region 7 according to this definition may vary considerably depending on the style of the underwear, ie the cut of the leg openings.

[0179] The underwear 1 also includes an absorbent assembly 10. For example Figure 4 As shown, the absorbent assembly 10 comprises a top layer 15 facing the wearer, a moisture barrier 12 and optionally one or more intermediate layers 11, 16 superimposed between the top layer 15 facing the wearer and the moisture barrier 12 along a height axis z perpendicular to the central longitudinal axis y and the transverse axis x. Figure 4 The layers 11, 12, 15, 16 of the absorbent assembly 10 are further described.

[0180] like Figure 2a As shown, in the underwear 1 shown, the absorbent assembly 10 is located on the inner side 8 of at least one fabric sheet 2. The absorbent assembly 10 is arranged in at least a portion of the crotch region 7 of the underwear 1.

[0181] While in some variations the absorbent assembly 10 may extend longitudinally beyond the crotch region 7 in a direction towards the front of the undergarment 1, in other variations, e.g. Figure 2a In the variant shown, the absorbent assembly 10 does not extend beyond the crotch region 7 in the longitudinal direction towards the front side 3 of the underwear 1 .

[0182] The longitudinal extent of the absorbent assembly 10 towards the rear of the underwear 1 may depend, for example, on the design of the underwear 1. In some variations, for example Figure 2a In the variant shown, the absorbent assembly 10 may extend in the longitudinal direction towards the rear region 4 of the undergarment 1 not beyond the crotch region 7 .

[0183] Therefore, if Figure 2a In the embodiment shown, the absorbent assembly 10 may be confined to the crotch region 7 where the need for absorption is immediately prevalent.

[0184] However, in other variations, the absorbent assembly 10 may extend beyond the crotch region 7, e.g. Figure 2bFurthermore, other options are also available, including that the absorbent assembly 10 optionally or additionally extends beyond the crotch region 7 in a direction toward the front of the underwear, as for example Figure 2c .

[0185] As illustrated in the illustrated undergarment 1 , the absorbent assembly 10 defines a peripheral outer edge 20 forming a closed perimeter of the absorbent assembly 10 .

[0186] When underwear 1 is worn, the majority of fluid contaminants (e.g., urine or menstrual fluid) will contact the central crotch region of underwear 1, i.e., stain zone 25. It has been recognized that due to the proximity of leg openings 6a, 6b to stain zone 25, combined with the wearer's movements, these areas of underwear 1 are more susceptible to leakage than other areas.

[0187] "Leg opening" in this context refers to the portion of the underwear 1 through which the legs extend from the crotch region 7 of the underwear 1. Thus, if the side tabs 17 of the underwear 1 are removed, e.g. Figure 2a As shown, and with the crotch region 7 having the absorbent assembly 10 laid flat, the leg openings 6a, 6b are understood to be openings viewed in the plane of the transverse axis x and the longitudinal axis y, through which the user's legs will extend along an axis z perpendicular to the transverse axis x and the longitudinal axis y when the article is worn. Therefore, when determining the extent of the leg openings 6a, 6b, any portion of the underwear 1 that is intended to extend along the wearer's legs is disregarded. That is, when the entire underwear 1 is in the plane as shown, the leg openings 6a, 6b are considered to be the same as the leg openings 6a, 6b. Figure 1 In the flat state shown, any portion of the undergarment extending beyond the transverse axis x in a direction away from the waist opening 5 will be disregarded (eg may be cut off) when determining the extent of the leg openings 6a, 6b.

[0188] As disclosed herein and as Figure 2a 、 2b , 2c, 3b and 3c show an absorbent assembly 10 in the underwear 1 comprising one or more sealed edge sections 21a, 21a', 21a", 21a*, 21a**, 21b, 21b', 21b", 21b*, 21b**.

[0189] Figures 5a-5c Different examples of sealed edge sections 21a, 21a', 21a", 21a*, 21a**, 21b, 21b', 21b", 21b*, 21b** are shown. Figures 5a-5c, the absorbent assembly 10 comprises a wearer-facing top layer 15 facing the user's skin and a fluid-impermeable moisture barrier 12. Two optional intermediate layers 11, 16 (in this case, two absorbent layers 11 and 16) are located between the wearer-facing top layer 15 and the liquid-impermeable moisture barrier 12. The liquid-impermeable moisture barrier 12 prevents liquid from leaking from the optional intermediate layer or layers 11 into the fabric sheet 2. The liquid-impermeable barrier 12 can be in the form of a liquid-impermeable barrier layer 12, such as Figure 5a However, in other variations, the fluid-impermeable barrier 12 may be a coating on the wearer-facing side of the fabric sheet 2 or on the garment-facing side of the absorbent layer 11 .

[0190] The different layers in the absorbent assembly 10 are joined in sealed edge sections 21a, 21a', 21a", 21a*, 21a**, 21b, 21b', 21b", 21b*, 21b** by any type of fluid seals and / or fluid tight joints conventionally known in the art. Figure 5a 、 5b 5c show different non-limiting examples of schematic cross-sectional views of fluid seals 24a, 24b that may be included in sealed edge segments 21a, 21a', 21a", 21a*, 21a**, 21b, 21b', 21b", 21b*, 21b**, as for example Figures 2a to 2c or Figures 3b to 3c shown.

[0191] In case one or more intermediate layers 11, 16 do not extend into the circumferential edge, the joining of the top layer 15 facing the wearer and the moisture barrier 12 is achieved by means of a first fluid seal 24a, such as Figure 5a As shown. A first fluid seal 24a is arranged to extend between the bottom surface of the wearer-facing topsheet 15 and the top surface of the moisture barrier 12 at a distance from the circumferential outer edge of the one or more sealed edge segments. The fluid seal 24a provides a continuous seal between the wearer-facing topsheet 15 and the moisture barrier 12 in the sealed edge segments.

[0192] In addition to the first fluid seal 24a, a second fluid seal 24b is arranged to extend between the bottom surface of the moisture barrier 12 and the top surface of the at least one fabric sheet 2 in one or more sealed edge sections 21a, 21b along the circumferential outer edge 20 at a distance therefrom. In addition to providing a further fluid seal along the one or more sealed edge sections 21a, 21b, the second fluid seal 24b also provides additional attachment of the absorbent assembly 10 to the fabric sheet 2.

[0193] However, other variations are possible in which the fabric panels 2 are not included in the seal created by the fluid seal 24b, but the absorbent assembly 10 is permanently attached to one or more fabric panels 2 of the undergarment 1 by other means, such as by seams.

[0194] The advantage of joining the bottom surface of the top layer 15 facing the wearer directly to the moisture barrier 12 without involving any intermediate layers 11, 16 is that a flatter and more flexible outer edge portion is provided, thereby allowing a more appropriate fit and comfort to the user of the underwear 1 while still preventing fluid leakage in the transverse direction x.

[0195] Figure 5b and Figure 5a The absorbent assembly 10 is similar in that the one or more optional intermediate layers 11, 16 in the absorbent assembly 10 are arranged so as not to extend all the way to the peripheral outer edge 20 (as seen in the transverse and / or lateral directions) when the wearer-facing top layer 15 and the moisture barrier 12 are joined. The first fluid seal 24a is arranged to extend between the bottom surface of the wearer-facing top layer 15 and the top surface of the moisture barrier 12 at a distance from the peripheral outer edge of the one or more sealed edge segments. The fluid seal 24a provides a continuous seal between the wearer-facing top layer 15 and the moisture barrier 12 in the sealed edge segments 21a, 21b.

[0196] Figure 5b and Figure 5a The difference is that the wearer-facing top layer 15 extends beyond the first fluid seal 24a (as seen in the transverse and / or lateral direction) and the bottom surface of the wearer-facing top layer 15 is directly attached to the top surface of at least one fabric sheet 2 via the second fluid seal 24b.

[0197] The wearer-facing top layer 15 may extend beyond the moisture barrier 12 by a distance of 1 to 30 mm, wherein the distance between the first fluid seal 24a and the outer edge of the wearer-facing top layer may be 1-20 mm, preferably 1-10 mm, more preferably 3-10 mm.

[0198] Figure 5c and Figure 5a and 5bThe absorbent assembly 10 is similar in that the one or more optional intermediate layers 11, 16 in the absorbent assembly 10 are arranged so as not to extend all the way to the peripheral outer edge 20 (as viewed in the transverse and / or lateral directions) when the wearer-facing top layer 15 and the moisture barrier 12 are joined. The first fluid seal 24a is arranged to extend between the bottom surface of the wearer-facing top layer 15 and the top surface of the moisture barrier 12 at a distance from the peripheral outer edge of the one or more sealed edge segments. The fluid seal 24a provides a continuous seal between the wearer-facing top layer 15 and the moisture barrier 12 in the sealed edge segments 21a, 21b.

[0199] Similar to the variant in 5b, the wearer-facing top layer 15 in variant 5c extends beyond the first fluid seal 24a (as viewed in the transverse and / or lateral direction), and the bottom surface of the wearer-facing top layer 15 is directly attached to the top surface of at least one fabric sheet 2 via the second fluid seal 24b. Figure 5c In a variation of Figure 5b The top layer 15 is wider in the middle and extends into the area below the first seal 24a. This provides an additional fluid seal if some fluid should enter through the portion of the top layer 15 that extends to the outside of the first seal 24a facing the wearer.

[0200] Furthermore, this may provide a smoother outer edge as it reduces the risk of wrinkling of the outer edge of the top layer 15 facing the wearer at the location of the second seal 24b.

[0201] Optionally, the second seal 24b extends into the area below the first seal 24a (or even beyond it). Thus, the second seal 24b can have a first portion that forms a seal between the bottom side of the wearer-facing top layer 15 and the top side of the fabric sheet 2, and a second portion that forms a seal between the bottom side of the moisture barrier 12 and the top side of the fabric sheet 2.

[0202] like Figure 2a As shown, the fluid seals 24a, 24b can be arranged to substantially coincide with the peripheral outer edge 20 of the absorbent assembly 10.

[0203] In other variations, the fluid seals 24 a , 24 b may be arranged to extend along and be at a distance from the circumferential outer edge 20 .

[0204] In some variations, this distance may be constant, ie, the one or more fluid seals 24a , 24b may generally follow the contour of the circumferential outer edge 20 .

[0205] In other variants, this distance may vary, ie one or more fluid seals 24 a , 24 b may have a shape that differs more or less from the contour of the circumferential outer edge 20 .

[0206] In either case, the one or more fluid seals 24a, 24b can advantageously extend relatively close to the peripheral outer edge 20 so that a majority of the absorbent assembly 10 is available for intake and distribution of body fluids. Thus, this distance can be, for example, less than 5 mm. For example, the distance can be less than 2 mm or less than 1 mm.

[0207] Optionally, the fluid seals 24a, 24b may include one or more fluid-tight joints. As in the example shown, each fluid seal 24a, 24b includes a fluid-tight joint. For example, such a fluid-tight joint may be achieved by a fluid-tight adhesive joint or a fluid-tight welded joint (such as a heat welded joint or an ultrasonic welded joint).

[0208] In the case of a welded seal, the fluid seal can be formed from a molten material. For example, the seal can include a hot melt adhesive. In another example, the seal can include molten material from, for example, the layers to be joined together, such as an ultrasonic seal or a heat seal.

[0209] The fluid seal may be a double-sided tape. In some variations, both the first fluid seal 24a and the second fluid seal 24b may be a double-sided tape.

[0210] In some variations, the bottom surface of the wearer-facing topsheet 15 and the top surface of the moisture barrier 12 may be directly joined by at least one of the fluid-tight joints 24a.

[0211] In other variations, the bottom surface of moisture barrier 12 and the top surface of fabric sheet 2 may be joined by a fluid-tight joint 24b.

[0212] In other variations, the bottom surface of the wearer-facing top layer 15 and the top surface of the fabric sheet 2 may be joined by a fluid-tight joint 24b.

[0213] In some examples, such as those shown in the accompanying drawings, the circumferential outer edge 20 of the absorbent assembly 10 also includes a sealed portion that is not a sealed edge segment as defined herein. Such a sealed portion can be made using various other sealing arrangements, for example, to provide even higher leakage resistance than a sealed edge segment. For example, as shown in the accompanying drawings, the circumferential outer edge 20 of the absorbent assembly 10 can include one or more sealed assembly side portions 30a, 30b that are positioned opposite each other and on each side of the longitudinal axis y.

[0214] For example, and as in a variation of the accompanying drawings, in each sealed assembly side 30a, 30b, the top surface of the wearer-facing top layer 15 can be sealingly attached to the moisture barrier 12 or to one or more fabric sheets 2. Each sealed assembly side 30a, 30b can extend longitudinally along at least a portion of the crotch region 7 of the underwear 1. The sealed assembly side 30a, 30b can include a fluid-tight sealing member 35a, 35b that is arranged to hinder fluid from leaking from the absorbent assembly 10 through the seal and assembly side 30a, 30b in the crotch region 7 to the outside of the circumferential outer edge 20. In this case, the fluid-tight sealing member 35a, 35b is a fluid-tight sealing member that provides a continuous seal along the sealed assembly side 30a, 30b and between the wearer-facing top layer 15 and the moisture barrier 12. The fluid-tight sealing members 35a, 35b in the sealed assembly sides 30a, 30b may be provided, for example, by sealing strips 35a, 35b arranged to be folded over the periphery of the wearer-facing top layer 15 and the moisture barrier 12, as will be described below in conjunction with Figure 4 Further explanation.

[0215] Figure 4 An example of an absorbent assembly 10 is shown comprising a wearer-facing top layer 15, a moisture barrier 12 and optionally one or more intermediate layers 11, 16 superimposed between the wearer-facing top layer 15 and the moisture barrier 12 along a height axis z perpendicular to the central longitudinal axis y and the transverse axis x. Figure 4 In the figure, for better visibility, the layers 11, 12, 15, 16 are shown as being spaced apart from each other. However, in practice, these layers will be superimposed on each other, as seen in the height direction z, with each layer contacting the adjacent upper and / or lower layers.

[0216] In an absorbent assembly 10 comprising one or more optional intermediate layers 11, 16, all layers of the absorbent assembly 10 may extend to the peripheral outer edge 20 of the absorbent assembly 10, at least in some portions where fluid absorption is more desired. This may be the case, for example, in the sealed assembly side portions 30a, 30a*, 30a**, 30b, 30b*, 30b** extending longitudinally along the leg openings 6a, 6b, where most of the fluid contaminants (e.g. urine or menstrual fluid) will contact the central crotch region of the underwear 1. Therefore, the absorbent assembly 10 may comprise a top layer 15 facing the wearer and a moisture barrier 12, and have one or more intermediate layers 11, 16 along the sealed side edge length SSL. Here, it is advantageous to use a fluid sealing member 35a, 35b comprising a sealing strip, which is arranged to be folded over the peripheral edge of the absorbent assembly 10 comprising all layers (see Figure 4). The fluid sealing members 35a, 35b may be arranged to extend from the top side of the top layer 15 facing the wearer, over the outer peripheral edges of the top layer 15 facing the wearer, the optional one or more intermediate layers 16, 11 and the barrier layer 12. Figure 4 In the example shown, the fluid-sealing members 35a, 35b may also extend over the outer edges of one or more fabric sheets 2 and to the underside of one or more fabric sheets. Thus, the fluid-sealing members 25a, 25b may attach the absorbent assembly 10 to the one or more fabric sheets 2. In other variations (not shown), the fluid-sealing members 35a, 35b may extend from the top side of the wearer-facing top layer 15, past the outer peripheral edges of the wearer-facing top layer 15, the optional one or more intermediate layers 16, 11, and the barrier layer 12, and to the underside of the barrier layer 12.

[0217] Alternatively, a mechanical joint (eg, a seam) may join the layers 15 , 12 , 16 , 11 together within the peripheral edges of the layers 15 , 12 , 16 , 11 .

[0218] In this way, the fluid sealing members 35a, 35b, which may be elastic bands, for example, form a continuous seal between the top side of the top layer 15 facing the wearer and the moisture barrier 12, for example to the bottom side of the moisture barrier 12 or to the bottom side of one or more fabric layers 2, so as to prevent fluid leakage.

[0219] Each fluid seal 20a, 20b in the sealed assembly side 30a, 30b may extend continuously over a longitudinal side seal length SSL as seen along the longitudinal axis y.

[0220] In order to provide an adequate seal, the longitudinal side seal length SSL may for example be at least 5 cm, such as at least 10 cm.

[0221] The longitudinal side seal length SSL may for example be less than 45 cm, such as less than 35 cm.

[0222] As such, the longitudinal side seal length SSL may be selected to be suitable for providing sufficient resistance to fluid leakage through the sealed assembly sides 30a, 30a*, 30a**, 30b, 30b*, 30b**.

[0223] In some embodiments, the sealing members 35a, 35b do not extend over the peripheral edge of the fabric sheet 2. Instead, the absorbent assembly 10 including the sealing members 35a, 35b can be attached to the fabric sheet 2 via the edge 22a, which extends over the sealing members 35a, 35b and the peripheral edge of the fabric sheet 2. Thus, the edge 22a can be used to attach the absorbent assembly 10 to the fabric sheet 2 as described in any example or figure herein.

[0224] It should be understood that while the examples shown in the figures all include sealed assembly sides 30a, 30b, the present disclosure also encompasses variations that lack any such sealed assembly sides 30a, 30b.

[0225] As described above, areas of the absorbent assembly 10 that are less prone to leakage and / or have higher flexibility requirements may advantageously be provided with fluid seals that are thinner (i.e., flatter) and more flexible than seals in areas that are more prone to leakage. Thus, for example, in the sealed edge segments 21a, 21a', 21a", 21a*, 21a** and 21b, 21b', 21b", 21b*, 21b** provided in areas of the absorbent assembly 10 that face the front 3 and / or back 4 of the underwear 1, one or more intermediate layers 11, 16 (if present) may extend over less than the entire area of the absorbent assembly 10. In other words, in selected areas of the absorbent assembly 10, the assembly includes fewer than all of the layers of the absorbent assembly.

[0226] For example, the selected area of the absorbent assembly 10 may include only the top layer 15 and the moisture barrier 12 facing the wearer. This may be advantageous, for example, in areas of the absorbent assembly 10 where less fluid needs to be absorbed and / or where a better fit and shaping of the underwear 1 to the user's body is desired. For example, when the absorbent assembly 10 includes a sealed front edge section and / or rear edge section, the lateral area of the absorbent assembly 10 corresponding to the sealed front edge section and / or rear edge section may be the selected area that includes only the top layer 15 and the moisture barrier 12 facing the wearer. Therefore, the absorbent assembly 10 may include the top layer 15 and the moisture barrier 12 facing the wearer without an intermediate layer along the front edge length FEL and / or the rear edge length REL.

[0227] In some variations, such as in Figure 2a In the variant shown, in each sealed assembly side 30a, 30b, at least a portion of the peripheral outer edge 20 of the absorbent assembly follows the contour of the corresponding leg opening 6a, 6b of the undergarment 1. Figure 2a In the variant of FIG. 5 , throughout each sealed assembly side portion 30a, 30b, the peripheral outer edge 20 of the absorbent assembly follows the contour of the respective leg opening 6a, 6b.

[0228] However, in other variations (not shown), in each of the sealing assembly sides 30a, 30b, a portion of the circumferential outer edge 20 of the absorbent assembly may follow the contour of the corresponding leg opening 6a, 6b, and another portion of the circumferential outer edge 20 may deviate from the contour of the corresponding leg opening 6a, 6b.

[0229] Although the sealed assembly side portions 30a, 30b effectively prevent leakage, it has now been recognized that the sealed assembly side portions may become hard and thick. Therefore, it is proposed herein to provide sealed edge sections that can provide flatter and more flexible seals while providing sufficient sealing. Compared to an absorbent assembly 10 that is provided with, for example, a fluid-tight member that is arranged to be folded over the entire outer circumferential edge 20, the flatter and more flexible seals in the sealed edge sections provide improved aesthetics, fit, and comfort for washable and reusable underwear 1. In addition, and as will be described in further detail below, the sealed edge sections provide easy manufacturing while still achieving a leak-proof circumferential outer edge 20.

[0230] In some examples, such as those shown in the accompanying drawings, the sealed edge sections 21a, 21b are combined with sealed assembly sides 30a, 30b. For example, the sealed assembly sides 30a, 30b can be arranged generally along the leg openings of an undergarment (the sides of the absorbent assembly), where flexibility requirements may be less, while the sealed edge sections 21a, 21b can be arranged, for example, at the front and / or rear edges of the absorbent assembly, where flexibility requirements may be greater.

[0231] Furthermore, while it is naturally desirable to avoid leakage of bodily fluids from the absorbent assembly 10 as a whole, it has been recognized that the risk of leakage occurring is still relatively small for some portions of the peripheral outer edge 20. For example, portions of the peripheral outer edge 20 that are relatively far from the contamination area 25 of the undergarment 1 may be less prone to leakage because fluid received at the contamination area 25 would need to be distributed over a relatively long distance in order to reach portions closer to the peripheral outer edge 20.

[0232] Therefore, portions of the circumferential outer edge 20 which are considered to be less prone to leakage may advantageously be provided with sealed edge sections 21 a , 21 b .

[0233] However, other embodiments (not shown) are possible in which the absorbent assembly includes sealed edge segments 21a, 21b but does not include sealed assembly sides 30a, 30b as described herein. For example, the absorbent assembly may include sealed edge segments 21a, 21b around the entire outer circumferential edge of the absorbent assembly. Additionally, other embodiments are possible in which the sealed edge segments 21a, 21b are combined with any other type of sealing arrangement along a portion or portions of the circumferential outer edge of the absorbent assembly.

[0234] Each sealed edge segment provides a continuous seal along the sealed edge segment and between the wearer-facing top layer 15 and the moisture barrier 12 so as to prevent fluid from leaking from the absorbent assembly 10 through the sealed edge segment to the outside of the peripheral outer edge 20. The continuous sealing of the sealed edge segments is provided by sealingly attaching the bottom surface of the wearer-facing top layer 15 to the top surface of the moisture barrier 12 and attaching the bottom surface of the moisture barrier 12 or the bottom surface of the wearer-facing top layer 15 directly to the top surface of at least one fabric sheet 2.

[0235] Advantageously, in some variations, at least a portion of the peripheral outer edge 20 forms a sealed front edge section 21 a of the absorbent assembly 10 and faces the front portion 3 of the underwear 1. The sealed front edge section 21 a will provide a continuous seal along the sealed front edge section 21 a and between the wearer-facing top layer 15 and the moisture barrier 12 so as to prevent fluid from leaking from the absorbent assembly 10 to the outside of the peripheral outer edge 20 facing the front portion 3 of the underwear 1.

[0236] Advantageously, in some variations, at least a portion of the peripheral outer edge 20 forms a sealed rear edge section 21 b of the absorbent assembly 10 and faces the rear portion 4 of the underwear 1. The sealed rear edge section 21 b will provide a continuous seal along the sealed rear edge section 21 b and between the wearer-facing top layer 15 and the moisture barrier 12 so as to prevent fluid from leaking from the absorbent assembly 10 to the exterior of the peripheral outer edge 20 facing the rear portion 4 of the underwear 1.

[0237] In some variations, the peripheral outer edge 20 of the absorbent assembly 10 includes a sealed front edge section 21a facing the front 3 of the underwear 1 and a sealed rear edge section 21b facing the rear 4 of the underwear 1 .

[0238] Thus, as will be understood from the exemplary embodiments described herein, in some variations, one or more sealed component side portions 30a, 30a and one or more sealed edge segments 21a, 21b may be distributed along the circumferential outer edge 20 so as to provide a complete or substantially complete fluid seal of the absorbent assembly 10 to ensure a well-functioning absorbent underwear 1 while providing the desired comfort and fit.

[0239] For example, the sealed assembly sides 30a, 30b can be arranged in pairs such that the sealed assembly sides 30a, 30b in each pair are positioned opposite each other and on either side of the longitudinal axis y. Similarly, the sealed edge segments 21a, 21b can be arranged in pairs such that the sealed edge segments 21a, 21b in each pair are positioned opposite each other and on either side of the transverse axis x.

[0240] For example, Figure 2aAs shown in the variation of FIG, the peripheral outer edge 20 of the absorbent assembly 10 may include a pair of sealed assembly sides 30a, 30b provided with fluid-tight sealing members 35a, 35b (see FIG. Figure 4 ), the fluid-tight members 35a, 35b are positioned opposite each other and are located on each side of the longitudinal axis y. Each sealed assembly side portion 30a, 30b extends longitudinally along at least a portion of the leg openings 6a, 6b in the crotch region 7 of the underwear 1.

[0241] The peripheral outer edge 20 of the absorbent assembly 10 further comprises a pair of sealed edge segments 21a, 21b positioned opposite one another and on either side of the transverse axis x such that the sealed front edge segment 21a faces the front 3 of the undergarment 1 and the sealed rear edge segment 21b faces the rear 4 of the undergarment 1, as shown in FIG. Figure 2a shown.

[0242] As described above, by sealingly attaching the bottom surface of the wearer-facing top layer 15 to the top surface of the moisture barrier 12, and attaching the bottom surface of the moisture barrier 12 or the bottom surface of the wearer-facing top layer 15 directly to the top surface of at least one fabric sheet 2, a continuous seal is provided along the sealed edge sections 21a, 21b and between the wearer-facing top layer 15 and the moisture barrier 12. Therefore, the sealed edge sections 21a, 21b will effectively prevent fluid from leaking from the absorbent assembly 10 through the sealed edge sections 21a, 21b to the outside of the peripheral outer edge 20.

[0243] The pair of sealed assembly sides 30a, 30b together with the pair of sealed front edge segments 21a and back edge segments 21b will provide a continuous seal along the entire circumferential outer edge 20 of the absorbent assembly 10 so as to prevent fluid from leaking from the absorbent assembly 10 to the outside of the circumferential outer edge 20 of the absorbent assembly 10.

[0244] By providing an absorbent assembly 10 having a pair of sealed assembly sides 30a, 30b and a pair of sealed edge sections 21a, 21b disposed about the peripheral outer edge 20 of the absorbent assembly 10, fluid leakage from the contaminated area 25 inside the absorbent assembly 10 to the outside of the peripheral outer edge 20 can be prevented.

[0245] Thus, as will be understood from the exemplary embodiments described herein, one or more sealed component side portions 30a, 30a and one or more sealed edge segments 21a, 21b may be distributed along the circumferential outer edge 20 so as to provide a complete or substantially complete fluid seal of the absorbent component 10 to ensure a well-functioning absorbent underwear 1 while providing the desired comfort and fit.

[0246] So, for example, Figure 2aAs shown, the peripheral edge 20 may include a rear edge portion 20d toward the rear portion 4 of the underwear 1, a front edge portion 20c toward the front portion 3 of the underwear 1, and side edge portions 20a, 20b toward the leg openings 6a, 6b of the underwear. Figure 2a As shown in the variation of FIG, the side edge portions 20a, 20b can interconnect the front edge portion 20c and the rear edge portion 20d to form the entire circumferential edge 20. Similarly, as shown in FIG. Figure 2a As shown, sealed assembly sides 30a, 30b may extend along side edge portions 20a, 20b and interconnect a sealed front edge segment 21a extending along front edge portion 20c and a sealed rear edge segment 21b extending along rear edge portion 20d.

[0247] The shape of the absorbent assembly 10 can be adapted to various absorbent needs and various designs of the undergarment 1 in order to provide adequate absorption and a satisfactory fit.

[0248] For example, the side edge portions 20a, 20b may include a concave portion when viewed toward the central longitudinal axis y. Figure 2a In the variation shown, the entire side edge portions 20a, 20b are concave towards the central longitudinal axis y, ie, are curved inwardly towards the central longitudinal axis y. Thus, the absorbent assembly 10 may be adapted to fit between the legs of a wearer.

[0249] The front edge portion 20c of the absorbent assembly can be similarly shaped to take into account the comfort and fit requirements of the underwear 1. In some variations, such as in the underwear 1 shown, the front edge portion 20c can bulge from the transverse axis x, i.e., bend away from the transverse axis x. Figure 2a As shown, at the location of the central longitudinal axis y, the front edge 20c can therefore project toward the front of the underwear 1 beyond the extension of the side edge portions 20a, 20b of the absorbent assembly 10. This can be beneficial for the fit of the underwear to the body and helps to avoid unwanted creases in the fabric sheet 2.

[0250] In addition, the rear edge portion 20d of the absorbent assembly 10 can be shaped to take into account the comfort and fit requirements of the underwear 1. Figure 2a As shown, the rear edge portion 20d may for example be concave towards the transverse axis x, ie curved towards the central transverse axis x. In other variations, the rear edge portion 20d may protrude towards the rear of the underwear 1 beyond the extension of the side edge portions 20a, 20b of the absorbent assembly 10.

[0251] Figure 2b Another variation of the underwear 1 is shown. Figure 2a Features similar to those described are denoted by the same reference numerals. Figure 2aThe description of the features of the variants also applies to Figure 2b A variant of .

[0252] Figure 2b The absorbent assembly 10 shown includes a pair of sealed assembly sides 30a, 30b, as shown. Figure 2a shown.

[0253] In addition, if Figure 2b As shown, the peripheral outer edge 20 of the absorbent assembly 10 may form a rear edge portion 20d' that extends longitudinally from the rearmost longitudinal ends of the sealed assembly sides 30a, 30b toward the rear portion 4 of the underwear 1 to the rearmost end of the absorbent assembly 10. The rear edge portion 20d' may include one or more sealed edge segments 21b'. For example, Figure 2b As shown, the one or more sealed edge sections 21b' of the absorbent assembly 10 include a rear edge portion 20d', ie, the absorbent assembly 10 includes a sealed rear edge section 21b'.

[0254] Thus, an undergarment 1 is provided that has a sealed rear edge section 21b' extending rearwardly from the sealed assembly side portions 30a, 30b. This may be desirable, for example, to form an undergarment 1 particularly suitable for nighttime use. By ensuring that the rear edge portion 20d' is the sealed rear edge section 21b', the profile and extent of the absorbent assembly 1 in the rear edge portion 20d', due to the flat and flexible seal provided in the sealed rear edge section 21b', achieves a comfortable fit of the absorbent assembly 10 and a substantially invisible rear edge portion 20d'.

[0255] For example, the sealed rear edge segment 21b' can have a rear edge length (REL) along the longitudinal axis y. The rear edge length can be, for example, at least 2 cm, such as at least 4 cm or at least 10 cm. The rear edge length can be, for example, less than 40 cm, such as less than 30 cm. The rear edge length can be in the range of 2 cm to 40 cm, such as 4 cm to 30 cm.

[0256] Thus, for example, a garment 1 may be provided wherein the sealed assembly sides have a sealed side length (SSL) of between 5 and 35 cm and a rear edge length (REL) of at least 2 cm, for example between 4 and 30 cm.

[0257] In some variations, such as Figure 2b As shown, the rearmost end of the absorbent assembly 10 may be arranged at a distance from the rear waist end of the underwear 1 .

[0258] For example, the rearmost end of the absorbent assembly 10 may be disposed at a distance of at least 2 cm, such as at least 4 cm or at least 6 cm, from the rear waist end of the undergarment 1 .

[0259] like Figure 2b As shown, the absorbent assembly 10 may extend beyond the crotch region 7 of the underwear 1 , for example in a direction towards the back 4 of the underwear 1 .

[0260] Figure 2c Another variation of the underwear 1 is shown. Figure 2a or Figure 2b Features similar to those described are denoted by the same reference numerals and with respect to Figure 2a or Figure 2b The description of the characteristics of the variant also applies to Figure 2c A variant of .

[0261] As reference Figure 2b As mentioned, Figure 2c In a variation of the embodiment of the present invention, the peripheral outer edge 20 of the absorbent assembly 10 may form a rear edge portion 20d' located in a portion of the absorbent assembly 10 that extends longitudinally from the rearmost longitudinal ends of the sealed assembly sides 30a, 30b toward the rear portion 4 of the underwear 1 to the rearmost end of the absorbent assembly 10. The rear edge portion 20d' may include one or more sealed rear edge sections. For example, Figure 2c As shown, the one or more sealed edge sections 21 of the absorbent assembly 10 includes a rear edge portion 20d", ie, the rear edge portion 20d" is a sealed rear edge section 21b".

[0262] In addition, as in Figure 2c In a variation of the embodiment of the present invention, the peripheral outer edge 20 of the absorbent assembly 10 can form a front edge portion 20f located in a portion of the absorbent assembly 10 that extends longitudinally from the forward longitudinal ends of the sealed assembly sides 30a, 30b to the forwardmost end of the absorbent assembly 10. The front edge portion 20f can include one or more sealed edge segments 21a". For example, Figure 2c As shown, the one or more sealed front edge sections 21a" of the absorbent assembly 10 includes a front edge portion 20f, ie, the front edge portion 20f is a sealed front edge section 21a".

[0263] from Figure 2b and 2c As can be appreciated from the example, providing a sealed front edge section 21a" and / or a sealed rear edge section 21b" provides flexibility when selecting the shape and extension of the front edge section and / or the rear edge section. For example, Figure 2b As shown in the example of , the contour of the front edge portion 20c" and / or the rear edge portion 20d" may include a rounded shape, such as a bulb shape. In other examples, such as Figure 2c As shown, the outline of the front edge portion 20c" and / or the rear edge portion 20d" may include straight shapes, such as lines and / or corners.

[0264] Figure 3aAnother variation of the underwear 1 is shown, when the entire underwear 1 is placed in a flat state on a support surface. Figure 1 and Figures 2a to 2c Features similar to those described are denoted by the same reference numerals and with respect to Figure 1 and Figures 2a to 2c The description of the characteristics of the variant also applies to Figure 3a and 3b For simplicity, Figures 3a to 3c Compare Figure 1 and Figures 2a to 2c However, those skilled in the art will appreciate that the omitted details, such as the positions of the sealed component sides 30a*, 30a**, 30b* and 30b** and the sealed edge sections 21a*, 21a**, 21b* and 21b**, may apply equally to the Figures 3a to 3c variants.

[0265] Figure 3a Underwear 1 with Figure 1 and 2a The difference between the underwear shown in Figure 2c is that when the complete underwear is as shown in Figure 2c, the underwear is Figure 3a When laid out flat as shown, the undergarment 1 is of a style having legs extending beyond the transverse axis x in a direction away from the waist opening 5. As mentioned above, the extended legs are disregarded when determining the leg openings 6a, 6b as defined herein. Figure 3b and 3c In the figure, it is shown that Figure 3a An undergarment 1 of the type shown is shown in which any leg portion extending beyond the transverse axis x in a direction away from the waist opening 5 is cut away from the undergarment 1 .

[0266] Steering Figure 3b , which shows Figure 3a The underwear 1 is similar to Figures 2a to 2c In the cut-out state described in FIG, it is found that for this type of pattern, when determining the extension of the leg openings 6a, 6b, these openings can have a relatively short extension along the longitudinal axis y. Therefore, by definition, the crotch region 7 extending between the leg openings can similarly be relatively short.

[0267] like Figure 3b As shown in the example of FIG, the absorbent assembly 10 can extend beyond the crotch region 7 toward the front 3 and back 4 of the underwear 1. As described with respect to other examples, the absorbent assembly 10 can, for example, include a pair of sealed assembly side regions 30a*, 30b*, a sealed front edge region 21a*, and / or a sealed back edge region 21b*. For example, as in Figure 3bIn a variant of the invention, the absorbent assembly 10 may comprise a sealed front edge region 21a* and a sealed rear edge region 21b*. The extension and shape of the front edge region 21a* and / or rear edge region 21b* may be freely selected and may be, for example, Figure 3b As shown, the front edge region 21a* and the rear edge region 21b* are approximately similar. As mentioned above, the rearmost and / or frontmost ends of the absorbent assembly 10 may be arranged at a distance from the waist edge at the waist opening 5 of the undergarment 1 .

[0268] Figure 3c A further variant of the underwear 1 is shown. Figure 3c The overall style of underwear in Figure 3a and 3b Similar to the description above. Figure 1 and Figures 2a to 2c or Figures 3a to 3b Features similar to those described are denoted by the same reference numerals and with respect to Figure 1 and Figures 2a to 2c or Figures 3a to 3b The description of the characteristics of the variant also applies to Figure 3c A variant of .

[0269] For example, Figure 3c As shown, the absorbent assembly 10 may extend over substantially the entire front side 3 and / or back side 4 of the undergarment 1. Figure 3c As shown in the example of FIG, the rear end of the absorbent assembly 10 can coincide with the rear waist end of the underwear 1 formed by one or more fabric sheets 2. Figure 3c In the embodiment of the present invention, the front end of the absorption component 10 can coincide with the front waist end of the underwear 1.

[0270] like Figure 3c As shown, the absorbent assembly 10 may include sealed assembly side portions 30a**, 30b** that extend longitudinally over the entire front side 3 and / or back side 4 of the undergarment 1. Thus, the side seal length SSL corresponds to the total longitudinal extension of the absorbent assembly 10. The absorbent assembly may also include a sealed front edge segment 21a** and / or a sealed back edge segment 21b**. The sealed front edge segment 21a** and / or back edge segment 21b** may coincide with the front waist edge and / or back waist edge formed by one or more fabric panels 2, and may optionally be provided with a waistband 14.

[0271] In other variations, the side seal length SSL may be less than the total longitudinal extension of the absorbent assembly, as described above with respect to FIG. Figures 1 to 2c Similarly, regarding Figure 1 and 2a The characteristics and explanations given in 2c also apply to Figures 3a to 3c The style shown.

[0272] The wearer-facing top layer 15 may be constructed of any suitable fabric, including fibers of natural origin, synthetic fibers, or blends or mixtures of fibers of natural origin and / or synthetic fibers. The material used to construct the wearer-facing top layer should be soft and non-irritating to the skin and readily penetrated by any body fluids.

[0273] According to the present disclosure, the wearer-facing top layer should be washable. The wearer-facing top layer may comprise 20% to 100% naturally derived fibers, more preferably 40% to 100% naturally derived fibers, and most preferably 60% to 100% naturally derived fibers. The top, skin-facing layer 15 comprises a water-permeable material, thereby allowing body fluids to migrate to the one or more absorbent layers 11 below. The wearer-facing top layer 15 may have a basis weight of 80-200 gsm.

[0274] In some variations (not shown), a wicking layer 16 may be disposed beneath the top layer 15 facing the wearer. The wicking layer 16 has wicking properties to allow moisture to diffuse away from the wearer and into the one or more absorbent layers 11. In addition, wicking enables efficient diffusion of moisture, thereby allowing moisture to be received in a wider area of the one or more absorbent layers 11 below. This feature is particularly relevant for users suffering from stress urinary incontinence, as a sudden burst of urine may cause the absorbent layer 11 to quickly saturate at the point of impact. By spreading the volume of fluid over a wider receiving area in the absorbent layer 11, the wicking properties of the wicking layer 16 increase the total absorbent capacity of the absorbent layer. The wicking layer 16 may be constructed of any suitable fabric, including fibers of natural origin or mixtures thereof, synthetic fibers or mixtures thereof and / or blends or mixtures of fibers of natural origin and / or synthetic fibers. The basis weight of the wicking layer may be 180-250 gsm.

[0275] The absorbent assembly 10 of the absorbent underwear 1 may optionally include one or more absorbent layers 11 that are capable of absorbing liquid and releasing it during washing. The release of absorbed liquid is beneficial because it allows the absorbent underwear 1 to be recovered for reuse. Reusable absorbent underwear provides a more sustainable alternative to commonly used disposable hygiene articles that are not intended for reuse.

[0276] The one or more absorbent layers 11 may comprise any material capable of absorbing fluids, such as natural or synthetic fibers. The odor treatment may be silver ions, copper ions and zeolites or polyhexamethylbiguanide PHMB.

[0277] One or more absorbent layers 11 may also include materials having an open-cell porous structure, such as high loft or synthetic fibers having reservoir properties. The absorbent layers may contain between 20% and 100% fibers of natural origin, more preferably between 40% and 100% fibers of natural origin, and most preferably between 60% and 100% fibers of natural origin. The basis weight of each absorbent layer 11 may be 200-350 gsm. One or more absorbent layers 11 may be present in the absorbent assembly 10. For example, as in some of the illustrated variations, the absorbent assembly 10 may include two absorbent layers 11.

[0278] The liquid-impermeable barrier 12 may comprise any suitable material or combination of materials that prevents liquid from migrating from the absorbent assembly 10 to the fabric layer 2. As in the illustrated variation, the liquid-impermeable barrier 12 may be a liquid-impermeable barrier layer that has inherent hydrophobic properties or has been treated to become hydrophobic. The liquid-impermeable barrier layer 12 may comprise a microporous polymer film, or a laminate of a polymer film and a nonwoven material may also be used. Alternatively, the liquid-impermeable barrier 12 may be a coating of a moisture-impermeable material. The coating may be disposed, for example, on the surface of the absorbent layer 11 facing away from the wearer, or on the surface of the fabric sheet 2 facing the wearer.

[0279] The liquid-impermeable barrier 12 is preferably breathable to allow vapor to escape from the absorbent undergarment 1 while preventing liquid from passing through the fabric layers. Furthermore, the liquid-impermeable barrier 12 can be constructed of an elastic material to provide the absorbent assembly 1 with the necessary flexibility to adapt to the wearer's anatomy and movements. This improved fit increases the wearer's comfort during use and helps prevent leakage from migrating through the undergarment's leg openings 6a, 6b.

[0280] The fabric of one or more fabric sheets 2 can be made of any suitable fabric, including fibers of natural origin and mixtures thereof, synthetic fibers or their mixtures, or blends or mixtures of fibers of natural origin and / or synthetic fibers. The fiber can be a regenerated fiber. The fabric can include a stretchable fabric so that the absorbent underwear can provide a firm fit while adapting to the wearer's movement, thereby preventing any leakage from migrating through the leg openings and holding the absorbent assembly in place. The fabric is preferably breathable, to allow steam to escape from the wearer's skin and the absorbent assembly.

[0281] The present disclosure may vary within the scope of the appended claims.For example, the materials and dimensions of the different layers used to form the absorbent assembly may vary, as described above.

Claims

1. A washable and reusable underwear (1), comprising one or more fabric pieces (2) forming a front side (3) and a back side (4), the front side (3) and the back side (4) being joined so that the underwear (1) forms a waist opening (5) and a pair of leg openings (6a, 6b), wherein a crotch region (7) extends between the leg openings (6a, 6b), wherein a central longitudinal axis (y) of the underwear (1) extends along the one or more fabric pieces (2) of the underwear (1) in a direction from the back side (4) towards the front side (3), and a transverse axis (x) of the underwear (1) extends along the one or more fabric pieces (2) perpendicular to the central longitudinal axis (y), dividing the underwear (1) into the front side (3) and the back side (4); The underwear (1) further comprises an absorbent assembly (10) arranged in at least a portion of the crotch region (7) and comprising a wearer-facing top layer (15), a moisture barrier (12) and optionally one or more intermediate layers (11, 16), the one or more intermediate layers being superimposed between the wearer-facing top layer (15) and the moisture barrier (12) along a height axis (z) perpendicular to the longitudinal axis (y) and the transverse axis (x), the wearer-facing top layer (15) defining a peripheral outer edge (20) of the absorbent assembly (10), and the underwear (1) being characterized in that: At least a portion of the circumferential outer edge (20) of the absorbent assembly (10) includes one or more sealed edge segments (21a, 21b), wherein the bottom surface of the wearer-facing top layer (15) is sealingly attached to the top surface of the moisture barrier (12), and the bottom surface of the moisture barrier (12) or the bottom surface of the wearer-facing top layer (15) is directly attached to the top surface of at least one fabric sheet (2), the sealed edge segments (21a, 21b) providing a continuous seal between the wearer-facing top layer (15) and the moisture barrier (12) along the sealed edge segments (21a, 21b).

2. The underwear according to claim 1, wherein: At least a portion of the peripheral outer edge (20) forms a sealed front edge section (21a) of the absorbent assembly (10) and faces the front portion (3) of the undergarment (1).

3. The underwear according to claim 1, wherein: At least a portion of the peripheral outer edge (20) forms a sealed rear edge section (21b) of the absorbent assembly (10) and faces the rear portion (4) of the undergarment (1).

4. Underwear according to any one of the preceding claims, wherein the absorbent assembly comprises a sealed front edge section (21a) facing the front (3) of the underwear (1) and a sealed rear edge section (21b) facing the rear (4) of the underwear (1).

5. The underwear according to any one of the preceding claims, wherein: A first fluid seal (24a) is arranged to extend between the bottom surface of the wearer-facing top layer (15) of the one or more sealed edge sections (21a, 21b) and the top surface of the moisture barrier (12).

6. The underwear according to claim 5, wherein: The first fluid seal (24a) extends along the circumferential outer edge (20) of the one or more sealed edge segments (21a, 21b) at a distance from the circumferential outer edge (20) that is less than 5 mm, such as less than 2 mm, such as less than 1 mm.

7. The underwear according to claim 5 or 6, wherein: A second fluid seal (24b) is arranged to extend between the bottom surface of the moisture barrier (12) and the top surface of the at least one fabric sheet (2) along the circumferential outer edge (20) at a distance from the circumferential outer edge (20) in the one or more sealed edge sections (21a, 21b).

8. The underwear according to claim 7, wherein: The distance is less than 5 mm, such as less than 2 mm, such as less than 1 mm.

9. The underwear according to claim 5, wherein: In the one or more sealed edge sections (21a, 21b), the wearer-facing top layer (15) extends beyond the moisture barrier (12), and the bottom surface of the wearer-facing top layer (15) is directly attached to the top surface of the fabric sheet (2) via a second fluid seal (24b).

10. The underwear according to claim 9, wherein: The second fluid seal (24b) is arranged to extend between the bottom surface of the wearer-facing top layer (15) and the top surface of the at least one fabric sheet (2) along the circumferential outer edge (20) at a distance from the circumferential outer edge (20) in the one or more sealed edge sections (21a, 21b).

11. The underwear according to claim 10, wherein: The distance is less than 5 mm, such as less than 2 mm, such as less than 1 mm.

12. The underwear according to any one of claims 5 and 6, wherein in the one or more sealed edge sections (21a, 21b), the first and second fluid seals (24a, 24b) substantially coincide with the peripheral outer edge (20) of the absorbent assembly (10).

13. The underwear according to any one of claims 5 to 12, wherein: The first and / or second fluid seal (24a, 24b) is a fluid-tight joint.

14. The underwear according to claim 13, wherein: The fluid-tight joint is a fluid-tight adhesive joint, a hot melt adhesive joint, a fluid-tight welded joint, a heat welded joint, or an ultrasonic welded joint.

15. The underwear according to claim 13, wherein The fluid-tight joint is tape.

16. The underwear according to any one of claims 13 to 15, wherein: The wearer-facing topsheet (15) and the moisture barrier (12) are directly joined by at least one of the fluid-tight joints (24a, 24b).

17. The underwear according to any one of claims 13 to 15, wherein the moisture barrier (12) and the fabric sheet (2) are directly joined by at least one of the fluid-tight joints (24a, 24b).

18. The underwear according to any one of claims 13 to 15, wherein: The wearer-facing top layer (15) and the fabric sheet (2) are directly joined by at least one of the fluid-tight joints (24a, 24b).

19. The undergarment according to any one of the preceding claims, wherein: A pair of sealed component sides (30a, 30b) are positioned opposite to each other and, on each side of the longitudinal axis (y), in each sealed component side (30a, 30b), the top surface of the wearer-facing top layer (15) is sealingly attached to the moisture barrier (12) or to the one or more fabric pieces (2), and wherein, optionally, each sealed component side (30a, 30b) extends longitudinally along at least a portion of the crotch region (7) of the underwear (1).

20. The underwear according to claim 19, wherein In each sealed assembly side (30a, 30b), at least a portion of the peripheral outer edge (20) of the absorbent assembly (10) follows the contour of the corresponding leg opening (6a, 6b) of the undergarment (1).

21. The underwear according to any one of claims 19-20, wherein: Each sealed assembly side (30a, 30b) includes a fluid-sealing member (35a, 35b) that provides a continuous seal between the top surface of the wearer-facing top layer (15) and the bottom surface of the moisture barrier (12) or the bottom surface of the one or more fabric sheets (2) in the sealed absorbent assembly side (30a, 30b).

22. The underwear according to any one of claims 19 to 21, wherein: Each fluid sealing member (35a, 35b) in the sealed assembly side (30a, 30b) extends continuously over a longitudinal side seal length (SSL).

23. The underwear according to claim 23, wherein The longitudinal side seal length (SSL) is at least 5 cm, such as at least 10 cm.

24. The underwear according to claim 23, wherein The longitudinal side seal length (SSL) is less than 45 cm, such as less than 35 cm.

25. The underwear according to claim 24, wherein the sealed rear edge section (21b) of the absorbent assembly (10) is longitudinally located between the rearmost longitudinal end of the sealed absorbent assembly side (30a, 30b) and the rearmost end of the absorbent assembly (10), and the sealed front edge section (21a) of the absorbent assembly (10) is longitudinally located between the frontmost longitudinal end of the sealed absorbent assembly side (30a, 30b) and the frontmost end of the absorbent assembly (10).

26. An underwear according to any one of the preceding claims when combined with claims 2 and / or 3, wherein the sealed rear edge segment (21b) of the absorbent assembly (10) has a rear edge length (REL) along the longitudinal axis (y) and / or the sealed front edge segment (21a) of the absorbent assembly (10) has a front edge length (FEL) along the longitudinal axis (y), and wherein the rear edge length (REL) and / or the front edge length (FEL) is at least 2 mm, for example at least 4 mm, or at least 2 cm, for example at least 4 cm or at least 10 cm.

27. A washable and reusable absorbent assembly (10) for underwear (1), the assembly (10) comprising a top layer (15) facing the wearer, a moisture barrier (12) and optionally one or more intermediate layers (11, 16) superimposed between the top layer (15) facing the wearer and the moisture barrier (12) along a height axis (z) perpendicular to the longitudinal axis (y) and the transverse axis (x), The wearer-facing top layer (15) defines a peripheral outer edge (20) of the absorbent assembly (10), and the absorbent assembly (10) is characterized by: At least a portion of the circumferential outer edge (20) of the absorbent assembly (10) includes one or more sealed edge segments (21a, 21b), wherein the bottom surface of the wearer-facing top layer (15) is sealingly attached to the top surface of the moisture barrier (12), and the moisture barrier (12) or the bottom surface of the wearer-facing top layer (15) is configured to be directly attached to the top surface of at least one fabric piece (2) of the underwear, the sealed edge segments providing a continuous seal between the wearer-facing top layer (15) and the moisture barrier (12) along the sealed edge segments.

28. Washable and reusable absorbent assembly (10) according to claim 27, in combination with any one of the features of claims 2-15 and / or 17-26.

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