Incontinence diaper with landing marking zones

The enhanced design of incontinent diapers with strategically placed landing zones and side sections addresses the issue of poor fit and comfort, resulting in improved alignment, closure, and extended usage life.

DE102023124235A1Pending Publication Date: 2025-03-13PAUL HARTMANN AG
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Patent Information

Application Number
DE102023124235
Authority / Receiving Office
DE · DE
Patent Type
Applications
Current Assignee / Owner
Filing Date
2023-09-08
Publication Date
2025-03-13

AI Technical Summary

Technical Problem

Existing incontinent diapers often lack proper design and professional engineering, leading to inadequate wearing comfort and early expiration due to poor fit, especially in hip and leg opening areas.

Method used

The design features a main part with rear hip and front hip areas, including rear side longitudinal edges with added side sections that stretch across in the transverse direction, and a landing zone on the front area with visually recognizable first and second landing zones to facilitate correct positioning and closure.

Benefits of technology

This design enhances the fit and wearing comfort of the diaper by ensuring proper alignment and closure of the side sections, thereby improving outlet protection and extending the diaper's usage life.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present invention relates to an incontinence diaper (100) with a front section (110) having a landing zone on its outer surface (142) and fastening means (136, 138) being attachable to the landing zone, so that rear side sections (132, 134) for putting on and closing the incontinence diaper (100) on a user can be placed around the user's body and brought into an overlapping arrangement with the front section (110); and wherein the landing zone comprises a first landing zone (22a) and a second landing zone (22b), the first landing zone (22a) being located on one side of the longitudinal center axis (20) and the second landing zone (22b) being located on the other side of the longitudinal center axis (20);and wherein the first landing zone (22a) has a first landing marker zone A (112) and the second landing zone (22b) has a second landing marker zone B (114), wherein the first and second landing marker zones A (112) and B (114) are spaced apart from each other in the transverse direction (30), and wherein a distance ABO (10) in an upper section of the first and second landing marker zones A (112) and B (114) is smaller than a distance ABU (11) in a lower section of the first and second landing marker zones A (112) and B (114).;
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Description

[0001] The present invention relates to an incontinence diaper for the absorption of body excretions for use by adults. Such incontinence diapers, particularly those intended for single use, are known and frequently comprise a main body (chassis) with a front region and a rear region, the main body usually already comprising a fluid-absorbing absorbent body, and with rear side sections attached to both sides of the rear lateral longitudinal edges of the rear region, separate from one another, and preferably provided with fastening means. These rear side sections extend in the transverse direction of the diaper beyond the rear lateral longitudinal edges of the main body and connect the front region and the rear region to one another when the diaper is worn.This open diaper type, in contrast to the “pant-type,” is usually applied to the body in such a way that the rear side sections of the diaper overlap with an outer side of the front area to varying degrees depending on the anatomical conditions and are removably attached there, in particular by means of adhesive and / or mechanical fasteners.

[0002] Incontinence diapers of the generic type with transversely flared rear side sections are often not applied correctly and professionally during use. This can result in a reduction in comfort or the inner lining of the incontinence diaper not sealing effectively against the wearer's skin, particularly in the hip or leg opening areas, leading to premature leakage.

[0003] The object of the present invention is to make it easier for the user to correctly put on a generic incontinence diaper.

[0004] This object is achieved by an incontinence diaper having a longitudinal direction and a transverse direction, having a longitudinal central axis and a transverse central axis, and having an inner side and an outer side, and having a main part with a rear hip edge and a front hip edge, comprising a rear region and a front region, wherein - the main part has rear lateral longitudinal edges in the rear area; - rear side sections are attached to the rear lateral longitudinal edges, which extend transversely beyond the respective rear lateral longitudinal edges and each carry a closure means in the region of their free end in the transverse direction; - the front region has a landing zone on its outer side, and the closure means can be secured to the landing zone, so that the rear side sections can each be placed around the user's body and brought into an overlapping arrangement with the front region for applying and closing the incontinence diaper to a user; and wherein the landing zone comprises a first landing zone and a second landing zone, the first landing zone being located on one side of the longitudinal center axis and the second landing zone being located on the other side of the longitudinal center axis; - the first landing zone has a first landing marking zone A and the second landing zone has a second landing marking zone B, wherein the first and second landing marking zones A and B are spaced apart from one another in the transverse direction, and wherein a distance ABO in an upper portion of the first and second landing marking zones A and B is smaller than a distance ABU in a lower portion of the first and second landing marking zones A and B.

[0005] The invention recognizes that when putting on an incontinence diaper with rear side sections, particularly in the case where each rear side section has a single fastening means, such as a hook-and-loop tape or adhesive tape, the fastening means and, with it, the side sections must be secured obliquely to the longitudinal direction (pointing downwards toward the transverse center axis of the incontinence diaper) on an outer side of the main part in order to correctly secure the incontinence diaper to a person's body. The invention further recognizes that the user is highly likely to be prompted to the desired oblique positioning of the fastening means by the inventive design and location of the first landing marking zone A and second landing marking zone B.This allows the tensile forces acting via the closure means to seal the respective longitudinal edge areas of the main part in a crotch area of ​​the main part, i.e., the respective leg opening areas of the main part, against the skin of the diaper wearer, especially if the leg opening areas are elasticated in the usual way. This has a beneficial effect on both the fit and thus the wearing comfort, as well as the leakage protection.

[0006] In the context of the present invention, a landing marking zone is understood to mean a zone within the landing zone which, due to its visually perceptible nature, is visually recognizable and thus visually distinguishable, in particular visually distinguishable from an area adjacent to the landing marking zone.

[0007] A respective first or second landing marking zone A, B can be designed to be visually recognizable by one or more means, in particular selected from the group of graphics, characters, numbers, patterns, lines, symbols or, in particular, areally extending colored zones.

[0008] In particular, the landing marking zones A, B can have visually recognizable closure means positioning aids, in particular visually recognizable closure means positioning guide lines. The following assumes that the terms "closure means positioning aid" and "closure means positioning guide line" already have the characteristic "visually recognizable."

[0009] In the context of the present invention, “visually recognizable” means “recognizable with the naked human eye.”

[0010] The term "color" or "colored" used in the present invention refers to the visual perception property of light output derived from the light spectrum and, as such, perceivable by humans via the eye. Colors are typically known as black, red, blue, green, yellow, and mixtures thereof.

[0011] A landing zone represents a zone on which a fastening device of the incontinence diaper can be secured. Because the first landing marking zone A and the second landing marking zone B are spaced further apart in the transverse direction in a lower section of the respective landing marking zones A, B than in an upper section of the respective landing marking zones A, B, users are encouraged to adopt a pronounced oblique orientation of the fastening devices to be secured on the landing zone.

[0012] According to a first exemplary embodiment of the incontinence diaper according to the invention, the first landing marking zone A has an edge A, wherein the edge A delimits the transverse extent of the first landing marking zone A in the direction of the longitudinal central axis, and the second landing marking zone B has an edge B, wherein the edge B delimits the transverse extent of the second landing marking zone B in the direction of the longitudinal central axis. The edge A or B can in particular be the limit of the extent of a respective colored landing marking zone.

[0013] According to an alternative, the edge A or B can be designed in particular in the form of a visually recognizable, in particular colored, line. In this case, a line can be a continuous, uninterrupted line or a broken, in particular dot-shaped or dash-dot-shaped line. In such a case, the respective first or second landing marking zone A, B can also be designed to be visually recognizable solely by its respective edge A, B.

[0014] In the rare case that the anatomical conditions of the wearer of the incontinence diaper exceptionally require that the fastening means and with them the side sections be fixed close to the hip opening in an upper section of a respective first and second landing marking zones A, B - for example, if an incontinence diaper is put on a person that is too small - it has proven advantageous if the fastening means and with them the side sections are fixed in an upper section not obliquely, but perpendicular to the longitudinal direction, thus in the hip circumferential direction. Therefore, it is particularly provided that the edge A and the edge B in the upper section of the first and second landing marking zones A, B run parallel to the longitudinal center axis of the incontinence diaper.

[0015] In comparison to a “lower section” in the context of the present invention, an “upper section” is understood to mean a section of the incontinence diaper that is closer to the front hip edge in the longitudinal direction than a lower section.

[0016] The longitudinal center axis of the incontinence diaper runs longitudinally and bisects the maximum extension of the main body of the incontinence diaper in the transverse direction. The transverse center axis of the incontinence diaper runs perpendicular to the longitudinal center axis and bisects the maximum extension of the main body of the incontinence diaper in the longitudinal direction. The transverse center axis divides the main body such that the front area is located on one side of the transverse center axis and the back area is located on the other side of the transverse center axis. Thus, the front area extends from the transverse center axis to the front hip edge, and the back area from the transverse center axis to the rear hip edge.

[0017] According to a further exemplary embodiment of the incontinence diaper according to the invention, the edge A in the lower section of the first landing marking zone A and the edge B in the lower section of the second landing marking zone B run at least partially straight and oblique to the longitudinal direction, such that the distance ABU increases downwards, i.e. with increasing distance from the front hip edge. This has the advantage that the oblique, at least partially straight course of the respective edge A or B can serve as a further optical aid for the desired positioning, in particular of a closure means with a rectilinear distal closure means edge, since the user tends to arrange the distal closure means edge essentially parallel to the course of the respective edge A or edge B when securing.

[0018] According to a further embodiment, the lower section of the first landing marking zone A has a first lower section A21 and a second lower section A22, wherein the second lower section A22 is spaced further from the front hip edge in the longitudinal direction than the first lower section A21. Further in particular, the edge A runs rectilinearly in the first lower section A21 at an angle α1 to the longitudinal direction and in the second lower section A22 rectilinearly at an angle α2 to the longitudinal direction, where α1 < α2 applies. Further in particular, the lower section of the second landing marking zone B has a first lower section B21 and a second lower section B22, wherein the second lower section B22 is spaced further from the front hip edge in the longitudinal direction than the first lower section B21.In particular, the edge B runs in a straight line at an angle β1 to the longitudinal direction in the first lower section B21 and in a straight line at an angle β2 to the longitudinal direction in the second lower section B22, where β1 < β2. This has the advantage of encouraging the user to position the fastening means more obliquely when securing it on the landing zone with increasing distance from the front hip edge. "Oblique" in this case means forming a larger angle to the transverse direction, with reference to the direction of the tensile forces acting when positioning and securing the fastening means.

[0019] Preferably, the angles α1, β1 are 5-45°, in particular 10-40°, more particularly 15-35°. Preferably, the angles α2, β2 are 10-70°, in particular 20-60°, more particularly 30-55°, more particularly 40-50°.

[0020] According to further advantageous embodiments, the respective second lower section A22, B22 of the first and second landing marking zones A, B can have further sections following one another in the longitudinal direction, in particular 1-5 further sections with a distance ABU which is each greater in the direction of the transverse central axis.

[0021] According to a further advantageous embodiment, the edge A or B runs in a curved manner in one or more of the respective sections, in particular at least in some areas along a circular path with a variable or constant radius.

[0022] A respective first or second landing marking zone A, B can, in particular alternatively or in addition to the edges A, B, be designed to be visually recognizable by one or more means selected from the group of graphics, characters, numbers, patterns, symbols, lines, and areally extending colored zones.

[0023] According to a preferred embodiment of the incontinence diaper according to the invention, the lower section of the first and second landing marking zones A, B each has at least one, in particular a plurality of visually recognizable, in particular parallel and spaced-apart fastener positioning aids, in particular fastener positioning aid lines. The fastener positioning aids can in particular be designed in the form of a colored line. In this case, a line can be a continuous, uninterrupted line or an interrupted, in particular dot-shaped or dash-dot-shaped line. Advantageously, the fastener positioning aids run parallel to and spaced from the respective edge A, B of a respective landing marking zone A, B in the lower section.

[0024] In the event that, as described above, the lower section of the first landing marking zone A has a first lower section A21 and a second lower section A22, and the lower section of the second landing marking zone B has a first lower section B21 and a second lower section B22, it is provided in particular that a respective first lower section A21, B21 or a respective second lower section A22, B22, in particular all lower sections A21, B21, A22, B22, each have at least one, in particular a plurality of visually recognizable closure means positioning aids, in particular closure means positioning auxiliary lines, which run in particular parallel and spaced from one another. The closure means positioning auxiliary lines can in particular be designed in the form of a colored line.In this case, a line can be a continuous, uninterrupted line or a broken, particularly dot-shaped or dash-dotted line. Advantageously, the closure means positioning aids run parallel to and spaced from the respective edge A, B of a landing marking zone A, B in the respective first or second lower section. The closure means positioning aids facilitate the user's intuitive correct positioning of the closure means.

[0025] According to a further embodiment, the upper section of the first and second landing marking zones A and B each have at least one, in particular a plurality of visually recognizable closure means positioning aids, in particular closure means positioning aid lines, which run in particular parallel and spaced apart from one another.

[0026] It can be provided that the at least one, in particular the plurality of visually recognizable closure means positioning aids, in particular closure means positioning aid lines, run parallel to the edge A in one or more of the respective sections of the first landing marking zone A and run parallel to the edge B in one or more of the respective sections of the second landing marking zone B.

[0027] According to a further exemplary embodiment of the incontinence diaper according to the invention, the first landing marking zone A and / or the second landing marking zone B are formed at least in some regions, in particular in one or more of the respective sections of the first landing marking zone A and / or the second landing marking zone B, in particular entirely as a colored zone extending over the entire surface.

[0028] A colored zone or a respective edge A, B, or graphics, characters, numbers, patterns, symbols, lines, or a fastener positioning aid (hereinafter collectively referred to as the "colored area") can be formed or incorporated in various ways. It is conceivable that the colored area is formed by a coating or a print and / or by other means.

[0029] "Coating" or "print" refers to any additive applied to the surface of a flat material, such as a nonwoven fabric or film, that results in a visual, possibly combined with a haptic and / or technical change to the flat material. The coating / print can be designed as a raised, particularly tactile, perceptible layer with a certain coating thickness, applied to one side, or additionally or exclusively as a layer penetrating the flat material.

[0030] The methods known in the prior art for obtaining a color area include, for example, direct coating using letterpress, gravure, planographic, rotary, or non-contact coating methods such as spraying. Color areas can also be created using coloring processes such as pigment printing, spray printing, or stencil printing.

[0031] Materials or components that form a color area can be, for example, an adhesive, in particular hot melt, a printing ink as a paste or an ink.

[0032] It is preferred that the respective color area is designed as a single-color print.

[0033] Within the scope of the present invention, it is assumed that the first and second landing marking zones A, B are visually recognizable when viewed from the outside of the front region of the incontinence diaper, thus an outside of the landing zone. Thus, the material forming the landing zone, in the case of printing or coating, can be visually recognizable on an outer side, i.e., a side facing away from the body during use, or—if the material is sufficiently transparent—on an inner side, i.e., a side facing towards the body during use. If the material forming the landing zone is sufficiently transparent, a material located on an inner side of the landing zone material can also bear the visually recognizable coloring.

[0034] According to a further exemplary embodiment of the incontinence diaper according to the invention, the landing marking zones A and B are arranged symmetrically to each other with respect to the longitudinal center axis.

[0035] The incontinence diaper is an adult incontinence diaper. This entails larger dimensions, both longitudinally and transversely, and across the entire surface area, particularly compared to baby diapers. The length L1 of the incontinence diaper is advantageously 500–1200 mm, preferably 600–1100 mm, and more preferably 600–1000 mm. The length L1 of the incontinence diaper is the maximum longitudinal extent measured in mm in the longitudinal direction of the incontinence diaper, from the rear hip edge of the main body of the incontinence diaper to the front hip edge of the main body of the incontinence diaper.

[0036] A maximum width of the incontinence diaper, i.e., the maximum transverse extension measured in mm in the transverse direction, in the area of ​​the rear side sections, hereinafter referred to as the rear product span MS, is in particular 350-1200 mm, preferably 400-1100 mm, more preferably 450-1050 mm. The rear product span MS comprises the transverse extension of the main part together with the side sections. A front maximum width VS of the incontinence diaper, i.e., the maximum transverse extension measured in mm in the transverse direction in the front area, is in particular 200-700 mm, in particular 250-550 mm, more particularly 300-500 mm.

[0037] A ratio of the rear product span MS to the front maximum width VS is preferably 1.3 - 2.8, in particular 1.4 - 2.7, further in particular 1.5 - 2.6, further in particular 1.6 - 2.5.

[0038] Particularly in the previously described embodiment with a very large rear product span MS compared to the relatively small front maximum width VS, the inventive design and location of the first and second landing marking zones A, B can advantageously contribute to encouraging the user to correctly position the fastening means. The inventors have recognized that when handling generic incontinence diapers, i.e. diapers with a large surface area in the rear region and a relatively small surface area in the front region, users find it difficult to correctly position the fastening means on the outside of the front region.

[0039] At this point, it should be noted that, within the scope of the present invention, any dimensioning specifications regarding the transverse extent, longitudinal extent, or spacing of sections or any components of the incontinence diaper are determined in the flat, spread-out state of the flat materials forming the incontinence diaper. If, for example, the incontinence diaper has been elasticized using thread-like elasticizing agents in the so-called "stretchbond process," the flat materials are considered, as indicated in the figures, to be stretched to the extent that they are supplied as flat materials by the manufacturer or can subsequently be stretched out to their natural initial extent without elasticizing agents and placed on a flat surface. The transverse extents, longitudinal extents, dimensions, or spacing are then determined in this flat surface.This condition occurs naturally with non-stretchable chassis materials based on nonwovens or nonwoven-film composites or film layers.

[0040] The incontinence diaper in question here can have front side sections on both sides of the front area of ​​the main body, which extend transversely beyond the front lateral longitudinal edges. In this case, the front side sections can be attached to the main body as a separate component. However, designs of an incontinence diaper are also conceivable in which no side sections are attached to the front area, but rather the front lateral longitudinal edges of the main body each form a free-ending longitudinal edge of the incontinence diaper.

[0041] The landing zone on the outside of the front area is designed to attach the fastening means thereto, thus holding it in place, in order to fix the diaper to a person's body during use. Fastening means are known to those skilled in the art. A fastening means can be equipped with pressure-sensitive adhesive areas, layers, or elements. However, a fastening means can also be equipped with mechanically adhesive areas, layers, or elements. However, a fastening means can also be equipped with pressure-sensitive adhesive and mechanically adhesive areas, layers, or elements. Mechanical elements are preferably hook-and-loop fasteners. The fastening means preferably have mechanical fastening elements such as hook-and-loop fasteners, in particular in combination with pressure-sensitive adhesive areas, by means of which the fastening means can be adhesively engaged in the area of ​​the landing zone at least with the front area of ​​the incontinence diaper.The closure means are particularly designed as a tab and are arranged in particular on a side edge of the side sections, in particular such that, in use, they extend with a distal section beyond the side edge of the side sections, whereas a proximal section is permanently connected to the side edge of the side sections. Before use, the closure means can be folded back onto an inner side of the side sections or onto the inner side of their proximal section. In particular, a distal edge of the closure means runs parallel to the longitudinal direction of the incontinence diaper. Preferably, the distal section of the closure means has a rectangular contour.

[0042] The landing zone is designed according to the closure means used in order to form a closure system together with the closure means.

[0043] The “inside” refers to the top side of the incontinence diaper facing the body of the wearer, and the “outside” refers to the top side of the incontinence diaper facing away from the body.

[0044] The landing zone can be formed at least partially, in particular entirely, by a film. However, the landing zone can also be formed at least partially by a textile material or a nonwoven fabric. In a further preferred embodiment, the landing zone is formed entirely by a nonwoven fabric.

[0045] If the landing zone is formed by a nonwoven fabric, the nonwoven fabric can be the outer layer of a nonwoven laminate or a nonwoven-film laminate. The nonwoven fabric preferably comprises or consists of a spunbond (S), meltblown (M), SM nonwoven, SMS nonwoven, SMMS nonwoven, or carded nonwoven, in particular of a polymer material such as polypropylene. The nonwoven fabric preferably has a basis weight of 5-25 g / m². 2 , 7 - 20 g / m 2 , especially from 8 - 15 g / m 2 on.

[0046] The landing zone can be attached as a separate element to the front region of the main part. However, the landing zone can also be formed as an integral part of the main part. In particular, the outer side of the backsheet of the main part is configured to engage with the closure means, thus forming the landing zone in the front region. In such a case, the entire outer side of the main part, thus both in the front region and in the rear region, can be engaged with the closure means. In this case in particular, the inventive design and location of the first and second landing marking zones A, B can advantageously contribute to encouraging the user to correctly position the closure means.

[0047] According to the invention, the landing zone has a first landing marking zone A and a second landing marking zone B. The first landing marking zone A is arranged on one side of the longitudinal center axis and the second landing marking zone B is arranged on the other side of the longitudinal center axis.

[0048] The first and second landing marking zones A, B can extend in the longitudinal direction across the entire front region, i.e., from the front hip edge to the transverse center axis. According to an advantageous embodiment, the first and second landing marking zones A, B extend over a length of 80-400 mm, in particular 100-350 mm, in particular 140-300 mm, in particular 160-240 mm. Relative to the length VL of the front region, a length LLM of the first and second landing marking zones A, B, i.e., their maximum extension in the longitudinal direction, is in particular 0.1xVL - 0.8xVL, in particular 0.15xVL - 0.6xVL, in particular 0.2xVL - 0.5xVL. It has also proven advantageous if the length LLM of the first and second landing marking zones A, B relative to a length LS of the rear side sections, i.e. their maximum extension in the longitudinal direction, is in particular 1.2xLS - 3.0xLS, in particular 1.4xLS - 2.5xLS, in particular 1.6xLS - 2.0xLS.

[0049] The first and second landing marking zones A, B can extend longitudinally directly to the front hip edge. However, the first and second landing marking zones A, B can also be arranged at a longitudinal distance from the front hip edge. According to a further inventive concept, the first and second landing marking zones A, B extend longitudinally directly to the transverse center axis. However, the first and second landing marking zones A, B can also be arranged at a longitudinal distance from the transverse center axis.

[0050] The first and second landing marking zones A, B are spaced apart from the longitudinal center axis in the transverse direction, such that the first and second landing marking zones A, B are spaced apart from one another. The distance ABO is preferably 2-20 cm, in particular 3-15 cm, more particularly 4-10 cm, more particularly at most 8 cm. The distance ABU is preferably 4-50 cm, in particular 6-40 cm, more particularly 8-30 cm, more particularly 10-25 cm. A respective distance ABU, ABO can be constant throughout the entire respective section, in particular when the respective sections of the first and second landing marking zones A, B have a respective edge A, B running in the longitudinal direction, in particular when the respective sections of the first and second landing marking zones A, B are rectangular.As explained in more detail above, a respective section of the first and second landing marking zones A, B can, however, also have a respective edge A, B which has a variable distance from the longitudinal center axis and thus also a distance ABO and / or ABU which is variable in the longitudinal direction, in particular such that a respective distance ABO or ABU increases downwards, that is to say with increasing distance from the front hip edge.

[0051] The first and second landing marking zones A, B can extend in the transverse direction, in the direction of the respective front lateral longitudinal edge of the main part, up to the front lateral longitudinal edge of the main part, or according to a variant can be located at a distance from the respective front lateral longitudinal edge of the main part.

[0052] Preferably, the extension of the rear side sections in the longitudinal direction, determined at the rear lateral longitudinal edge of the main part, is 80-250 mm, preferably 100-200 mm, in particular 120-180 mm.

[0053] Furthermore, the rear side sections each carry at least one closure means in the region of their free end in the transverse direction. In a preferred embodiment, the rear side sections each have exactly one closure means. In this case, the extension of the closure means in the longitudinal direction at the free end is 20-100 mm, preferably 30-80 mm, in particular 40-60 mm. If the respective rear side section each has exactly one closure means, it proves advantageous if this closure means is provided centrally in the longitudinal direction of the rear side section.

[0054] The rear side sections preferably have an extension Q in the transverse direction in a flat, but not stretched, state over the respective rear lateral longitudinal edge and are elastically stretchable in the transverse direction, in particular within this extension Q, and for this purpose preferably have at least one elastic or elasticated region. The elastic region extends in particular in the transverse direction, and more particularly in the longitudinal direction, preferably over the entire longitudinal extension of the rear side sections. This increases the wearing comfort and leakage resistance of the diaper. Preferably, a proximal section of the side sections extends in the transverse direction, starting from the rear lateral longitudinal edge, over a length which is 65% of the extension Q of the rear side section. This means that a distal section extends over a length which is 35% of the extension Q.Preferably, the respective elastic or elasticized region of the rear side sections extends to the associated rear lateral longitudinal edge, but without overlapping the rear lateral longitudinal edge. Further preferably, the respective elastic or elasticized region is located exclusively in the proximal section of the side sections. Preferably, the two rear side sections are permanently attached to the main part by a non-stretchable region that overlaps the main part.

[0055] The main part comprises at least one flat material, in particular a nonwoven material.

[0056] The main part preferably comprises a top sheet (cover sheet) which is at least partially liquid-permeable and a back sheet (back sheet) which is at least partially liquid-impermeable, which sandwich an absorbent body which absorbs and stores liquids.

[0057] The cover sheet material comprises in particular apertured film materials or preferably nonwoven materials, such as spunbonded nonwovens (S), meltblown nonwovens (M), SM nonwovens, SMS nonwovens, SMMS nonwovens or carded nonwovens.

[0058] The nonwoven materials preferably used for the topsheet preferably have a basis weight of 5 - 40 g / m 2 , especially 7 - 30 g / m 2 , preferably from 8 - 20 g / m 2 , and especially from 10 - 16 g / m 2 . The topsheet preferably comprises a hydrophilized spunbonded fabric, preferably made of polypropylene, in particular with a basis weight of 10 - 16 g / m 2 .

[0059] The topsheet material can preferably be a composite of a topsheet material and a barrier material. In a further advantageous embodiment, the topsheet material is a composite of a liquid-permeable topsheet material with longitudinal edges and adjacent longitudinal edge regions, and hydrophobic barrier materials attached to the longitudinal edges or longitudinal edge regions of the topsheet material at joints on both sides. This composite provides the region-specific requirement profiles in an incontinence diaper, namely, fluid absorption in the central region and retardation of lateral fluid leakage at the edge regions.

[0060] The barrier material preferably comprises nonwoven materials, such as spunbonded nonwovens, meltblown nonwovens, preferably laminates of one or more spunbonded (S) and / or meltblown (M) nonwoven layers, more preferably SMS laminates or SMMS laminates, in particular based on polyolefins, such as polyethylene or polypropylene.

[0061] The nonwoven materials used for the barrier agent advantageously have a basis weight of 5 - 20 g / m 2 , preferably from 8 - 18 g / m 2 , especially from 10 - 15 g / m 2 .

[0062] The incontinence diaper can preferably have a cuff element on both sides of the inner side, forming a lateral leakage barrier and / or extending along a longitudinal extension of the absorbent body. The cuff element preferably comprises or is formed from a nonwoven material, in particular a hydrophobic nonwoven material. The basis weight of the nonwoven material used for this purpose is preferably 5-20 g / m 2 , preferably 7 - 16 g / m 2 , especially 8 - 14 g / m 2 , furthermore in particular 9-12 g / m 2 .

[0063] The cuff element material may comprise or be formed from the aforementioned barrier material.

[0064] The cuff elements preferably have a cuff elasticization system to ensure secure lifting and positioning of the cuff elements. Elasticization is achieved either by a surface-wide elasticization of the cuff elements, in which the cuff elements comprise elastically stretchable sheet materials in the longitudinal direction. In particular, it can be provided that essentially thread-like elasticization means or strip-like elasticization means are inserted into the cuff elements in the region of their free, liftable longitudinal edge.

[0065] Preferably, the at least partially liquid-impermeable backsheet comprises a film. The film preferably has a basis weight of 5 - 30 g / m 2 , preferably from 6 - 25 g / m 2 , especially from 7 -20 g / m 2 , furthermore in particular from 8 -14 g / m 2 on.

[0066] The film of the at least partially liquid-impermeable backsheet can advantageously be coated or laminated with a nonwoven fabric, at least in the area of ​​the landing zone, preferably over its entire surface, on its outer side, which can impart a textile appearance to the outer side of the incontinence diaper facing away from the body. The nonwoven fabric preferably comprises or consists of a spunbond (S), meltblown (M), SM nonwoven, SMS nonwoven, SMMS nonwoven, carded nonwoven, or through-air bonded carded nonwoven, in particular a spunbond made of polypropylene. The nonwoven fabric preferably has a basis weight of 5-25 g / m 2 , preferably from 7 - 20 g / m 2 , especially from 8 - 15 g / m 2 on.

[0067] The absorbent body is suitable and intended for absorbing and permanently storing bodily excretions, preferably bodily fluids, in particular urine. For this purpose, the absorbent body can advantageously contain superabsorbent polymer (SAP) material, preferably at a concentration of 5-100% by weight, in particular at a concentration of 6-90% by weight, more particularly at a concentration of 7-60% by weight, more particularly at a concentration of 8-30% by weight, more particularly at a concentration of less than 50% by weight, in particular at a concentration of less than 40% by weight, based on the total weight of the absorbent body. The SAP material can, for example, be particulate, fibrous, sheet, or foam-shaped. The SAP material can preferably absorb at least 15 times, in particular at least 20 times its weight in 0.9% by weight saline solution (measured according to NWSP 242.0.R2(15)). Alternatively or additionally, the absorbent body can contain other materials, such as cellulose fibers or plastic fibers.

[0068] The absorbent body may also comprise multiple layers that differ in their material and / or percentage composition (SAP, fiber type, chemical fiber composition), and which may, in particular, also have different extensions in the transverse and longitudinal directions. Layers that do not serve to distribute or transfer fluid or to permanently store fluid are not considered part of the absorbent body.

[0069] The absorbent body is preferably an integral component of the main part and, in such a case, is particularly permanently connected to the other components of the main part by the manufacturer. In such a case, the absorbent body is preferably permanently connected to a cover sheet material and / or to a backsheet of the main part.

[0070] According to an alternative embodiment, the absorbent body is detachable from the other components of the main part, particularly for the purpose of separate disposal of the used absorbent body loaded with body fluids. In this case, it may be advantageous to provide the absorbent body separately from the other components of the main part at the manufacturer's site and to provide means for connecting the absorbent body to the other components of the main part only at the consumer's site. In this case, the other components of the main part are preferably already pre-assembled by the manufacturer, forming a diaper chassis.

[0071] According to an advantageous variant, the absorbent body is prefabricated by the manufacturer as an absorbent pad sandwiched between a top sheet (cover sheet) that is at least partially liquid-permeable and a back sheet (back sheet) that is at least partially liquid-impermeable as a disposable component for single use, and is then connected to a preferably reusable main part by the user. According to a variant, the absorbent pad can also be connected by the manufacturer, in particular detachably, to the reusable main part.

[0072] Preferably, the topsheet material and / or backsheet material extend beyond the contour edges of the absorbent body, preferably at least in the longitudinal direction of the incontinence diaper, and more preferably in the transverse direction of the incontinence diaper, to form a corresponding overhang. In the overhang, the backsheet material and topsheet material are preferably joined to one another at least in some areas, in particular by known joining methods such as welding, sealing, sewing, or gluing.

[0073] Preferably, the incontinence diaper has a longitudinally extending elastic or elasticized section, particularly in the crotch area, particularly on both sides adjacent to a respective longitudinal edge of the crotch area. For this purpose, crotch elasticizing means are provided, which are arranged at least in sections outside the contour line of the absorbent body, particularly along the side edges of the crotch area, thus the leg opening areas.

[0074] The crotch elastication means can comprise elastic threads or flat or band-shaped materials such as elastic bands, films, nonwovens, or foams. "In the longitudinal direction of the incontinence diaper" here means that the crotch elastication means has at least one component in the longitudinal direction of the incontinence diaper, and can therefore also run diagonally or curved relative to the longitudinal direction of the incontinence diaper. The areas of the incontinence diaper provided with the crotch elastication means can serve as an additional lateral leakage barrier and simultaneously promote the application of the incontinence diaper, particularly the central product section, against the wearer's body, creating a boat-shaped curvature of the incontinence diaper.

[0075] In the context of the present invention, the "crotch area" refers to a longitudinal section of the incontinence diaper that extends across the transverse center axis of the incontinence diaper, both forward and backward, i.e., extending from the transverse center axis to both sides in the front and back areas. During use, the crotch area is located in the crotch of the wearer of the incontinence diaper.

[0076] The invention is explained in more detail below using the figures as examples. They show: Fig. 1 a schematic plan view, not to scale, of an outer side of an incontinence diaper according to the invention according to an embodiment in a flat and evenly spread out state; Fig. 2 shows a plan view, not to scale, of an outer side of a part of the front region of an incontinence diaper according to the invention according to a further embodiment in a flat and evenly spread out state; Fig. 3 a schematic plan view, not to scale, of an outer side of another incontinence diaper according to the invention in a flat and evenly spread out state; Fig. 4 a schematic plan view, not to scale, of an outer side of another incontinence diaper according to the invention in a flat and evenly spread out state.

[0077] Fig. Figure 1 shows a schematic, not-to-scale plan view of an incontinence diaper 100 according to the invention according to one embodiment in a flat, evenly spread-out state. Visible are a longitudinal direction 40 and a transverse direction 30, a longitudinal central axis 20, and a main part 140 with a rear hip edge 143 and a front hip edge 141, and with an inner side 144 and an outer side 142. The incontinence diaper 100 extends in the longitudinal direction 40 over its length L1 from the front hip edge 141 to the rear hip edge 143. L1 is, for example, 950 mm. Furthermore, the main part 140 comprises a rear region 130 and a front region 110, wherein the rear region 130 extends from a transverse central axis 21 to the rear hip edge 143 and wherein the front region 110 extends from the transverse central axis 21 to the front hip edge 141. The front region 110 has a landing zone for receiving closure means 136, 138.A crotch area 120, which is designed to lie between the legs of a user, extends across the transverse central axis 21. The longitudinal central axis 20 divides the landing zone such that a first landing zone 22a is located on one side of the longitudinal central axis 20 and a second landing zone 22b is located on the other side of the longitudinal central axis 20. The landing zone is formed by a spunbonded nonwoven fabric that covers the entire outer side 142 of the main part 140. The spunbonded nonwoven fabric is the outer layer of a nonwoven film laminate forming the backsheet 15 of the main part 140. The inner side 144 of the main part 140 is formed by a topsheet 14 made of a hydrophilized spunbonded nonwoven fabric. Topsheet 14 and backsheet 15 sandwich a liquid-absorbing and storing absorbent body 16, which, for example, contains or consists of a mixture of technical cellulose fibers and superabsorbent polymer (SAP) material.Outside the contour of the absorbent body 16, also arranged between the topsheet 14 and backsheet 15, are crotch elasticizing means 17 in the form of elastic threads, which, in the pre-tensioned state, are bonded to and between the topsheet 14 and backsheet 15 by means of a hot-melt adhesive. The main part 140 has rear lateral longitudinal edges 131, 133 in the rear region 130. Furthermore, rear side sections 132, 134 are attached to the rear lateral longitudinal edges 131, 133, which extend in the transverse direction 30 beyond the respective rear lateral longitudinal edges 131, 133 and each carry a closure means 136, 138 in the region of their free end 135, 137 in the transverse direction 30. The closure means 136, 138 are permanently connected with their proximal portion to a longitudinal edge region of the side sections 132, 134. The distal portion of the closure means 136, 138 is folded back onto an inner side of a respective side section 132, 134.Visible are a first landing marking zone A 112 as a partial region of the first landing zone 22a and a second landing marking zone B 114 as a partial region of the second landing zone 22b. Thus, the first landing marking zone A 112 is arranged on one side of the longitudinal center axis 20, and the second landing marking zone B 114 is arranged on the other side of the longitudinal center axis 20. In the illustrated embodiment, the first landing marking zone A 112 has an edge A 23. Edge A 23 is formed by a visually recognizable colored line. Edge A 23 limits the extension of the first landing marking zone A 112 in the transverse direction toward the longitudinal center axis 20. Furthermore, the second landing marking zone B 114 has an edge B 24. Edge B 24 is also formed by a visually recognizable colored line and limits the extension of the second landing marking zone B 114 in the transverse direction towards the longitudinal center axis 20.In an upper section of the first and second landing marking zones A 112, B 114, a respective edge A 23, B 24 runs parallel to the longitudinal direction 40. In a lower section of the first and second landing marking zones A, B, a respective edge A 23, B 24 runs obliquely, at an angle α of approximately 45° to the longitudinal direction. In the upper section of the first and second landing marking zones A 112, B 114, a distance ABO 10 of the first landing marking zone A 112 from the second landing marking zone B 114 at the point shown in . Fig. 1 is 60 mm. In a lower section, the distance ABU 11 of the first landing marking zone A 112 from the second landing marking zone B at the position shown in Fig. 1 is 200 mm. It can be seen that a distance ABU increases downwards, i.e. in the direction of the transverse center axis 21 and with increasing distance from the front hip edge 141. It can be seen that in a lower section of the landing marking zones A 112, B 114, a plurality of closure means positioning aid lines 13 are provided, namely in this case three each, running parallel and spaced from one another. As with the edges A 23, B 24, these are colored, visually recognizable lines which, in the illustrated embodiment, run parallel to the respective edge A 23, B 24 in a respective section.

[0078] The landing marking zone A 112 and the landing marking zone B 114 are arranged symmetrically with respect to the longitudinal center axis 20. The landing marking zones A 112, B 114 are spaced from the transverse center axis 21 in the longitudinal direction 40 and extend in the longitudinal direction 40 over a length LLM of, for example, 200 mm and directly to the front hip edge 141. The first and second landing marking zones A, B extend in the transverse direction 30, starting from a respective edge A 23, B 24, to a respective side edge of the main part 140. For example, this extension is 120 mm in each case.

[0079] Furthermore, the rear side sections 132, 134 have an extension Q in the transverse direction 30 in a flat, but not stretched, state over the respective rear lateral longitudinal edge 131, 133 and are elastically stretchable within this extension Q in the transverse direction 30 and have an elastic or elasticized region 12 for this purpose. In addition, a ratio of a rear product span width MS of, for example, 800 mm in the transverse direction 30 to a front maximum width VS of, for example, 400 mm in the transverse direction 30 is MS / VS = 2.0.

[0080] Fig. 2 shows an enlarged plan view of a portion of the front region of the incontinence diaper 100 according to the invention according to another embodiment. The first landing marking zone A 112, as a portion of the first landing zone 22a, is delimited in the transverse direction 30 toward the longitudinal center axis 20 by the edge A 23. The second landing marking zone B 114, as a portion of the second landing zone 22b, is delimited in the transverse direction 30 toward the longitudinal center axis 20 by the edge B 24.

[0081] In an upper section A1 26 of the first landing marking zone A 112 and in an upper section B1 27 of the second landing marking zone B 114, a respective edge A 23, B 24 runs parallel to the longitudinal center axis 20. A lower section of the first landing marking zone A 112 here has a first lower section A21 31 and a second lower section A22 32. The second lower section A22 32 is spaced further from the front hip edge 141 in the longitudinal direction 40 than the first lower section A21 31. The edge A 23 forms an angle α1 to the longitudinal direction 40 in the first lower section A21 31, running in a straight line, and an angle α2 to the longitudinal direction 40 in the second lower section A22 32, running in a straight line. In the illustrated case, α1 is 35° and α2 is 55°, thus α1 < α2. A lower section of the second landing marking zone B 114 has a first lower section B21 33 and a second lower section B22 34.The edge B 24 forms an angle β1 to the longitudinal direction 40 in the first lower section B21 33, running in a straight line, and an angle β2 to the longitudinal direction 40 in the second lower section B22 34, running in a straight line. In the case shown, β1 is 35° and β2 is 55°, thus β1 < β2. In each respective section, a plurality of closure means positioning aid lines 13 running parallel and spaced from one another can be seen. These are colored, visually recognizable lines which run parallel to the respective edge A 23, B 24 in each respective section.

[0082] Only very schematically indicated is a side section 132 which is fixed by means of a closure means 136 on the landing zone within the first landing marking zone A 112, obliquely to the longitudinal direction, wherein a distal edge 139 of the distal section of the closure means 136, which has hook and loop elements on its inner side, is aligned parallel to the closure means auxiliary lines 13 and the edge A 23.

[0083] Fig. Figure 3 shows a plan view of an incontinence diaper 100 according to the invention according to a further embodiment. The first and second landing marking zones A 112, B 114 are each formed as a two-dimensionally extended colored zone by a corresponding colored printing and are thus visually recognizable. According to a variant not shown, in addition to the colored printing, fastener positioning guide lines can be provided as shown in Fig. 1 and Fig. 2. In such a case, the fastener positioning guide lines have a different color or color intensity than the surface colored printing, so that the fastener positioning guide lines are visually recognizable.

[0084] Fig. 4 shows a plan view of an incontinence diaper 100 according to the invention according to a further embodiment. The first and second landing marking zones A 112, B 114 are each formed as a two-dimensionally extended colored zone by a corresponding colored printing and are thus visually recognizable. In contrast to the previously illustrated embodiments, the edges A 23 and B 24 are curved, such that a distance ABO 10 in an upper section of the respective landing marking zones A 112, B 114 is smaller than a distance ABU 11 in a lower section of the respective landing marking zones A 112, B 114. According to a variant not shown, in addition to the colored two-dimensional printing, fastening means positioning aid lines as in Fig. 1 and Fig.2. In such a case, the fastener positioning guide lines have a different color or color intensity than the surface colored printing, so that the fastener positioning guide lines are visually recognizable.

Claims

[1] Incontinence diaper (100) with a longitudinal direction (40) and a transverse direction (30), with a longitudinal central axis (20), and a transverse central axis (21), and with an inner side (144) and an outer side (142), and with a main part (140) with a rear hip edge (143) and a front hip edge (141), comprising a rear region (130) and a front region (110), wherein - the main part (140) has rear lateral longitudinal edges (131, 133) in the rear region (130); - rear side sections (132, 134) are attached to the rear lateral longitudinal edges (131, 133), which extend in the transverse direction (30) beyond the respective rear lateral longitudinal edges (131, 133) and each carry a closure means (136, 138) in the region of their free end (135, 137) in the transverse direction (30); - the front region (110) has a landing zone on its outer side (142), and the closure means (136, 138) can be secured to the landing zone, so that the rear side sections (132, 134) can each be placed around the user's body and brought into an overlapping arrangement with the front region (110) for applying and closing the incontinence diaper (100) to a user; and wherein the landing zone comprises a first landing zone (22a) and a second landing zone (22b), the first landing zone (22a) being located on one side of the longitudinal center axis (20) and the second landing zone (22b) being located on the other side of the longitudinal center axis (20); - the first landing zone (22a) has a first landing marking zone A (112) and the second landing zone (22b) has a second landing marking zone B (114), wherein the first and second landing marking zones A (112) and B (114) are spaced apart from one another in the transverse direction (30), and wherein a distance ABO (10) in an upper section of the first and second landing marking zones A (112) and B (114) is smaller than a distance ABU (11) in a lower section of the first and second landing marking zones A (112) and B (114). [2] Incontinence diaper (100) according to claim 1, wherein the first landing marking zone A (112) has an edge A (23), wherein the edge A (23) limits the transverse extent of the first landing marking zone A in the direction of the longitudinal central axis and wherein the second landing marking zone B (114) has an edge B (24), wherein the edge B (24) limits the transverse extent of the second landing marking zone B (114) in the direction of the longitudinal central axis (20). [3] Incontinence diaper (100) according to claim 2, wherein the edge A (23) and the edge B (24) in the upper portion of the first and second landing marking zones A (112), B (114) run parallel to the longitudinal central axis (20). [4] Incontinence diaper (100) according to claim 2 or 3, wherein the edge A (23) in the lower section of the first landing marking zone A (112) and the edge B (24) in the lower section of the second landing marking zone B (114) extend at least partially in a straight line and obliquely to the longitudinal direction (40), such that the distance ABU (11) increases downwards with increasing distance from the front hip edge. [5] Incontinence diaper (100) according to one or more of claims 2-4, wherein - the lower section of the first landing marking zone A (112) has a first lower section A21 (31) and a second lower section A22 (32), and the second lower section A22 (32) is spaced further apart from the front hip edge (141) in the longitudinal direction (40) than the first lower section A21 (31), - and the edge A (23) in the first lower section A21 (31) runs straight at an angle α1 to the longitudinal direction (40) and in the second lower section A22 (32) runs straight at an angle α2 to the longitudinal direction (40) and where α1 < α2 - and wherein the lower portion of the second landing marking zone B (114) has a first lower portion B21 (33) and a second lower portion B22 (34), and the second lower portion B22 (34) is spaced further apart from the front hip edge (141) in the longitudinal direction (40) than the first lower portion B21 (33) - and the edge B (24) in the first lower section B21 (33) runs straight at an angle β1 to the longitudinal direction (40) and in the second lower section B22 (34) runs straight at an angle β2 to the longitudinal direction (40) and where β1 < β2 applies. [6] Incontinence diaper (100) according to one or more of the preceding claims, wherein the respective lower section of the first and second landing marking zones A (112) and B (114) each has at least one, in particular a plurality of visually recognizable, in particular parallel and spaced-apart fastener positioning aids, in particular fastener positioning aid lines (13). [7] Incontinence diaper (100) according to claim 5 or 6, wherein the first lower section A21 (31), B21 (33) of the first and second landing marking zones A (112) and B (114) each has at least one, in particular a plurality of visually recognizable, in particular parallel and spaced-apart fastener positioning aids, in particular fastener positioning aid lines (13). [8] Incontinence diaper (100) according to claim 5, 6 or 7, wherein the second lower section A22 (32), B22 (34) of the first and second landing marking zones A (112) and B (114) each has at least one, in particular a plurality of visually recognizable, in particular parallel and spaced-apart fastener positioning aids, in particular fastener positioning aid lines (13). [9] Incontinence diaper (100) according to one or more of the preceding claims, wherein the upper section of the first and second landing marking zones A (112) and B (114) each has at least one, in particular a plurality of visually recognizable, in particular parallel and spaced-apart fastener positioning aids, in particular fastener positioning aid lines (13). [10] Incontinence diaper (100) according to one or more of claims 6-9, wherein the at least one, in particular the plurality of visually recognizable fastener positioning aids, in particular fastener positioning aid lines (13) run parallel to the edge A (23) in one or more of the respective sections of the first landing marking zone A (112) and run parallel to the edge B (24) in one or more of the respective sections of the second landing marking zone B (114). [11] Incontinence diaper (100) according to one or more of the preceding claims, wherein the first landing marking zone A (112) and / or the second landing marking zone B (114) is formed at least in regions, in particular in one or more of the respective sections of the first landing marking zone A and / or the second landing marking zone B, in particular completely as a planarly extending colored zone. [12] Incontinence diaper (100) according to one or more of the preceding claims, wherein the landing marking zones A (112) and B (114) are arranged symmetrically to each other with respect to the longitudinal central axis (20). [13] Incontinence diaper (100) according to one or more of the preceding claims, wherein the rear side sections (132, 134) have an extension Q in the transverse direction (30) in a flat, spread-out but not stretched state over the respective rear lateral longitudinal edge (131, 133) and are elastically stretchable in particular within this extension Q in the transverse direction (30) and for this purpose preferably have at least one elastic or elasticized region (12). [14] Incontinence diaper (100) according to one or more of the preceding claims, wherein a ratio of a rear product span width MS to a front maximum width VS of the incontinence diaper in the front region is 1.3-2.8, preferably 1.4-2.7, more preferably 1.5-2.6 and particularly preferably 1.6-2.5.

Citation Information

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