Pull-up nappy

Abstract

The invention relates to a pull-up nappy (1) with a closed waist region (2) in which an elastic arrangement is combined with at least one nonwoven layer (3, 4) to form reserve regions (5). Arranged between the elastic arrangement and the nonwoven layer (3, 4) are connecting regions (6), wherein the elastic arrangement is designed as a sheet-like formation in the form of an elastic film (7). The connecting regions (6) are in the form of ultrasonically welded structures.

Description

[0001] Pull Up Diaper

[0002] Description

[0003] The invention relates to a pull-up diaper with a closed waist region, in which an elastic arrangement is combined with at least one nonwoven layer to form reserve regions, wherein connecting regions are arranged between the elastic arrangement and the nonwoven layer.

[0004] Pull-up diapers utilize an elastic, stretchable array along a closed waist area to ensure a good fit and tightness. To increase comfort, these diaper elements contain an elastic array that adapts to the body shape thanks to the elastic's resilience. In conventional pull-up diapers, the elastic array, designed according to the state of the art, includes a multitude of elastic threads embedded between textile-like cover materials, such as nonwovens, to provide a pleasant tactile feel.

[0005] Such nonwovens generally have limited stretchability. In pull-up diapers, a nonwoven layer can therefore be partially bonded to the elastic arrangement in a corrugated form. The corrugation troughs are connected to the elastic arrangement, while the corrugation crests protrude from the elastic arrangement and enclose a hollow space between the elastic layer and the elastic layer.

[0006] EP 2 954 880 B1 describes a pull-up diaper with a closed waist region, in which elastic threads are incorporated between nonwoven layers. EP 0 556 749 B1 discloses an embodiment of a panty-shaped diaper with a closed waist region, which is made with an elastic film complex. The diaper comprises a main body formed from a liquid-impermeable layer and forms the shape of the panty. A belt-shaped element consisting of an elastic film complex is attached to the waist region of this main body. This elastic film complex is bonded to nonwovens by adhesive bonding.

[0007] The diapers and pull-up diapers described above feature a construction that allows for elastic and stretchy properties. However, for a high level of comfort and a snug fit to the adult body, waistbands or diaper bands that are not limited to a uniform degree of elasticity are desirable. This is difficult to achieve, especially with uniformly incorporated elastic threads.

[0008] The object of the invention is to provide a pull-up diaper with a closed waist area that adapts specifically to the anatomical needs of the wearer. To this end, the waist area should be anatomically designed to meet individual needs and be adjustable. Furthermore, the waist area should exhibit favorable stretch properties while simultaneously ensuring high tear resistance. The waist area should stretch when subjected to force, but also build up sufficient resistance to give the consumer the feeling of a high-quality product. The pull-up diaper should be harmless to health and ecologically sustainable. Furthermore, the waist area should have a pleasant feel. In addition, the pull-up diaper should prevent fluid leakage.This object is achieved according to the invention by a pull-up diaper according to claim 1, a method, and a use according to the independent main claims. Preferred variants can be found in the dependent claims, the description, the exemplary embodiments, and the drawings.

[0009] According to the invention, the connecting areas are designed as ultrasonic welding structures.

[0010] For example, the elastic arrangement is designed as a flat structure, preferably in the form of an elastic film. The film is bonded to at least one nonwoven layer in a form-fitting and / or cohesive manner by ultrasonic welding. By varying the draw-in behavior during the production of the laminate made of elastic film and at least one corrugated nonwoven layer, regions with different reserve areas are created along the waist area and fixed with ultrasonic welding structures.

[0011] The bonding areas can be created using various methods. In a preferred variant of the invention, an already solidified, elastic film is unwound from a film roll, and a layer of nonwoven fabric with defined corrugations is added to it. The film and the layer are bonded together by bonding areas, and the bonding areas are created by ultrasonic welding. In this process, the corrugated nonwoven material is subjected to external thermal stress.

[0012] For this purpose, the nonwoven layer is rolled into a corrugated shape and welded to the elastic layer in the troughs of the corrugations. In ultrasonic welding, a generator converts mains voltage into a high-frequency alternating voltage, which is then converted into a mechanical oscillation. The oscillations are introduced into the elastic film and the nonwoven layer via a sonotrode, heating and plasticizing the material. After the sound introduction has ended, a brief cooling phase under pressure ensures a homogeneous weld between the two joining parts. Ultrasonic welding is characterized by fast process times and high precision, while at the same time eliminating the need for additives and solvents.

[0013] In an alternative variant of the invention, the bonding areas can also be formed using an adhesive. For example, a hot-melt adhesive based on styrene block copolymer is conceivable. Optionally, a rigid hot-melt adhesive can also be used for spot application.

[0014] In the bonding areas, there is a form-fitting bond between the elastic material of the film and the nonwoven material. The material of the elastic film surrounds the filaments of the nonwoven layer, so that after the elastic layer solidifies, a form-fitting bond is created within the bonding areas.

[0015] Between the connecting regions there are regions in which the corrugated nonwoven layer with its elevations projects away from the elastic film in a wave-like manner and encloses hollow spaces. These regions serve as a reserve for the stretching of the elastic arrangement, wherein in these regions there is no connection between the nonwoven layer and the elastic film. The term “elastic” for the elastic film preferably refers to a material which, after the application of a directed force, can stretch to a stretched length of at least approximately 160% of its relaxed, original length without tearing or breaking and which, after the applied force is removed, recovers by at least 55% of its elongation, preferably essentially to its original length, i.e. the recovered length is less than 120%, preferably less than 110%, more preferably less than 105% of the relaxed original length.

[0016] In a variant of the invention, the elastic film has at least one layer of polypropylene and / or an elastic polyolefin.

[0017] For example, the elastic film can also comprise a layer of SBC (styrene block copolymer) and / or TPE (thermoplastic elastomers). In an advantageous variant, the middle layer or core layer comprises a layer of SBC and / or TPE. In one variant of the invention, the elastic film has a multi-layer structure and is preferably designed as a coextruded film.

[0018] Styrene block copolymers (SBCs) are polymers composed of polybutadiene or polyisoprene and polystyrene blocks. They are transparent plastics with high impact strength.

[0019] The elastic film optionally has outer layers. In one variant of the invention, an outer layer consists of a polypropylene. For example, a core layer of the elastic film is embedded between two outer layers. The outer layers made of polypropylene are particularly suitable for ultrasonic welding with a layer of nonwoven. For example, the ratio of core layer to outer layer is more than 10:1, preferably more than 11:1, in particular more than 12:1 and / or less than 15:1, preferably less than 14:1, in particular less than 13:1. In this way, the weldability is particularly favorably harmonized with the elastic properties.

[0020] The thickness of the elastic film was measured according to DIN 53370 and reported as an average value. In a favorable variant of the invention, the elastic film has a thickness of more than 10 pm, preferably more than 15 pm, in particular more than 20 pm and / or less than 70 pm, preferably less than 60 pm, in particular less than 50 pm. This makes the elastic film particularly thin and material-saving, while simultaneously offering an appealing feel.

[0021] In one variant of the invention, the nonwoven layer is made of polypropylene. The terms "nonwoven" and "nonwoven" refer to polypropylene, which can be produced from continuous filaments and / or discontinuous fibers without weaving or knitting using processes such as spunbonding, carding, or meltblowing. The nonwoven fabric can comprise one or more nonwoven layers, each layer containing continuous filaments or discontinuous fibers.

[0022] In one option of the invention, the elastic arrangement has a further layer of nonwoven.

[0023] For example, the elastic film is arranged between the two nonwoven layers. Due to the corrugated design, at least one nonwoven layer is significantly longer than the elastic film. A second nonwoven layer improves the feel of the pull-up diaper for the wearer. The second nonwoven layer can be made of either a hydroentangled nonwoven, a carded nonwoven, or a spunbonded nonwoven. The second nonwoven layer can either be corrugated or have a flat profile. This gives the waist area a kind of cushion effect, the feel of which can be enhanced by the corrugated profile of the nonwoven layer.

[0024] In one variant of the invention, the elastic arrangement comprises a nonwoven layer made of a carded nonwoven fabric. The carded nonwoven fabric used preferably consists of polypropylene fibers and / or blends of different fiber types, such as polypropylene / viscose, polypropylene / polyamide, polypropylene / polyester, etc. The carded nonwoven fabric can also consist of polypropylene and / or polyethylene copolymer. The specific weight per unit area of ​​the carded nonwoven fabric is preferably 10 to 40 g / m 2 , especially between 15 and 25 g / m 2 The carded nonwoven fabric can be consolidated, for example, by means of a calender and / or by means of air and / or water jet.

[0025] Optionally, the elastic arrangement comprises a nonwoven layer made from a spunbonded fabric. Spunbonded fabrics can be produced in very low grammages. The spunbonded fabric used is preferably made of polypropylene fibers and is, in particular, thermally bonded. Alternatively and / or additionally, the nonwoven layer can also comprise meltblown nonwovens. This nonwoven layer ideally has a specific basis weight of more than 4 g / m 2 , preferably more than 5 g / m 2 , especially more than 6 g / m 2 and / or less than 50 g / m 2 , preferably more than 40 g / m 2 , especially more than 30 g / m 2 A zone is synonymous with the terms area, area, and section.

[0026] For example, the waist area comprises a first zone and at least one further zone, each with different reserve areas to ensure zone-specific flexibility under load. This is ideally achieved by the nonwoven layer within the zone having different proportions of bonding areas to ensure zone-specific flexibility under load.

[0027] The form-fitting connection of the elastic film with the nonwoven layer creates bonded areas with high strength. This results in lower compliance in zones with a high proportion of bonded areas, while higher zonal compliance can be achieved in bonded areas with a low proportion of bonded areas.

[0028] By varying the proportions of connecting areas in specific zones, an elastic arrangement is created that better adapts to the anatomical needs of diaper wearers. This allows for optimal comfort by creating a zone with little flexibility and a high degree of conformability on the back and at least one zone with high flexibility in the hip area.

[0029] In the zones, the area-specific proportions of the nonwoven layer's connecting areas can be achieved through various design measures. These measures can also be combined. In one variant, the spacing of the connecting areas in the first zone differs from the spacing of the connecting areas in the other zone. In the zone with the smaller spacing, the nonwoven layer is determined area-specifically by a larger number of connecting areas.

[0030] Optionally, the connecting areas have point-like structures.

[0031] For example, the structures of the connecting areas are created by the interaction of a sonotrode and the elevations of a roller. In a preferred variant of the invention, the elevations of the roller are designed as pyramid heads and create structures that correspond to the negative of a pyramid head.

[0032] In a further variant of the invention, the structures of the connecting regions are circular and / or oval and / or elongated and / or rectangular and / or square and / or trapezoidal.

[0033] A structure is an arrangement and / or organization of interconnected elements in a material object.

[0034] For example, the connecting areas have structures arranged in a horizontal direction.

[0035] The horizontal direction extends along the waist area of ​​the pull-up diaper. The structure of the connecting areas runs along the waist area and ensures the stretchability and conformability of the incontinence product at the transition to the abdomen and back of the diaper wearer. Optionally, the spacing of the connecting areas within the structure can be varied to create different reserve areas. To achieve this, the distances between the ultrasonic welding points are varied and / or the folding of the nonwoven layer is adjusted to create the reserve areas.

[0036] Optionally, the connecting areas have structures arranged in a vertical direction.

[0037] The vertical direction extends across the waist area of ​​the pull-up diaper. The structures of the connecting areas can be designed with variable spacing, creating zones with different recovery strengths and body-specific conformability.

[0038] For example, the connecting regions have structures that are arranged offset from one another. In one variant of the invention, the horizontally and / or vertically extending structures of the connecting regions are arranged offset from one another in the form of ultrasonic welding points or ultrasonic welding line elements.

[0039] In the case of a staggered arrangement of the connecting area structures, the structures can be arranged on straight lines and / or diagonals that have interruptions.

[0040] Optionally, the structures of the connecting areas can be designed in the form of wave, check or herringbone patterns.

[0041] For example, the waist area comprises a first zone and at least one further zone, which have different reserve areas to ensure zone-specific flexibility under load. For this purpose, the first zone can, for example, comprise reserve areas in the form of a nonwoven fabric laid in waves, which has connecting areas with the elastic film in the wave troughs.

[0042] In addition, the additional zone can preferably have no and / or very few reserve areas in the form of a corrugated nonwoven layer. In this embodiment, at least one and / or two nonwoven layers are flush-connected to the elastic film using connecting structures. In the described embodiment, this additional zone has a very high recovery force.

[0043] For example, the ratio of the reserve areas to ensure zone-specific compliance of the first zone to the further zone can be more than 2:1, preferably more than 3:1, in particular more than 4:1 and / or less than 20:1, preferably less than 15:1, in particular less than 10:1.

[0044] Opacity is the opposite of transparency. It is a measure of the light impermeability or opacity expressed as a percentage. Specifically, the opacity of a completely opaque film is 100%, and a completely or fully transparent film has an opacity of 0%.

[0045] In one variant of the invention, the elastic film has a print, with the nonwoven layer having a transparency level according to DIN 53416 of more than 85%, preferably more than 90%, in particular more than 95%, for the visibility of the print. This allows the print to shine through the nonwoven layer and is protected by the nonwoven layer. Furthermore, the print can be implemented as a printed motif. In the field of film, the term "print motif" refers to the thematic design element of a print. If necessary, manufacturer-identifying print motifs can also be included in the scope of the print.

[0046] A frequently used method for printing the elastic arrangement is flexographic printing. This is a direct relief printing process, also known as a web-fed rotary printing process. The flexible printing plates, which are made of photopolymer or rubber, are used in combination with low-viscosity printing inks. The raised areas of the printing form carry the image. The advantages lie in the cost-effectiveness due to the utilization of a large printing width and high printing speed, as well as the availability of inexpensive printing inks. The printing tools, photopolymer printing plates, and / or laser-engraved elastomer sleeves are readily available. Large print runs can be produced economically using flexographic printing. Printing is preferably carried out using flexographic printing. Furthermore, all other processes, such as offset gravure printing, are also included within the meaning of the invention.

[0047] In an alternative variant of the invention, the nonwoven layer can also be printed.

[0048] Digital printing is ideal for increasing the variety of variations while simultaneously increasing the cost-effectiveness of small print runs. This term encompasses a group of printing processes in which the print image is transmitted to a printing press as digital data. Laser and inkjet printing are the most common. The major advantage of digital printing is that it does not require a static, unchanging printing form. Instead, pixel addressing is dynamically generated within the print format for each individual print process, allowing each printed copy to have a different print image if necessary.

[0049] The inkjet inks used for printing are preferably low-viscosity inks, making them almost water-thin. Aqueous, UV-curable, and solvent-based ink systems are generally suitable. These inks are specifically adapted to the respective print heads and are therefore individually matched to the respective printing press.

[0050] Preferably, the print motif is printed using a water-based and / or glycol-containing composition in which the appropriate pigments are dispersed. Furthermore, the printing ink can also be solvent-based, for which a slow-drying solvent is most suitable. Furthermore, the ink can contain binders and additives.

[0051] The elastic film of the pull-up diaper optionally features a print. This print runs along the waist area and is preferably positioned in areas with less or no reserve space.

[0052] Advantageously, the visibility of the print is achieved through the transparency of the nonwoven layer in the printed areas.

[0053] According to the invention, a pull-up diaper is produced in a method in which at least one corrugated nonwoven layer with variable elevations and depressions is formed, an elastic film is extruded, and an elastic arrangement is produced as a flat structure by forming connecting regions in the form of ultrasonic welding structures between at least one nonwoven layer and the elastic film. For example, during the production of the pull-up diaper, at least one nonwoven layer is brought into a three-dimensional, corrugated shape before the connecting step by being guided over a special device. This device can be a roller that has elevations and thereby forms the corrugated profile of the nonwoven layer.To create the bonding areas between the nonwoven layer and the elastic film, a material bond and / or a form fit is created using ultrasonic welding. For this purpose, the nonwoven layer is rolled into a corrugated shape and welded to the elastic film in the corrugation troughs, forming a structure.

[0054] For example, the waist area of ​​the pull-up diaper exhibits advantageous gas permeability in the first zone. This gas permeability is achieved through the joining areas combined with the stretching of the waist area, for example, when putting on the pull-up diaper. Small zones of high gas permeability form around the joining areas.

[0055] Optionally, the waist area of ​​the pull-up diaper includes a first zone with high gas permeability and another zone with very low gas permeability.

[0056] In a favorable variant of the invention, the proportion of the first zone is more than 50%, preferably more than 60%, in particular more than 70% of the area of ​​the waist region. For example, the proportion of the further zone is more than 20%, preferably more than 30%, in particular more than 40% of the area of ​​the waist region.

[0057] According to the invention, a pull-up diaper with a closed waist area made of an elastic film and at least one layer of nonwoven, which are connected by means of ultrasonic welding structures, is used to create a close-fitting fit.

[0058] The realization of the connecting areas using ultrasonic welding structures enables zone-specific recovery force in the waist area. This creates a pull-up diaper waistband that achieves an unprecedented level of conformability compared to previous solutions using elastic threads.

[0059] Further advantages and features of the invention will become apparent from the description of an embodiment with reference to the drawings and from the drawings themselves.

[0060] Fig. 1 a perspective view of a pull-up diaper,

[0061] Fig. 2 a sectional view of the waist area with uniform reserve areas,

[0062] Fig. 3 another sectional view of the waist area,

[0063] Fig. 4 a third variant of the waist area in the sectional view,

[0064] Fig. 5 a fourth variant of the waist area in the sectional view,

[0065] Fig. 6 is a schematic representation of the structures of the connecting areas,

[0066] Fig. 7 another variant of the structures,

[0067] Fig. 8 shows a third variant of the structures. Fig. 1 shows a perspective view of a pull-up diaper 1 with a closed waist region 2. The pull-up diaper 1 is joined on both sides to form a closed pair of pants using the weld seam 13. The closed waist region 2 comprises a first zone 8 and at least one further zone 9.

[0068] Zone 8 has a print 10 with a manufacturer-identifying motif and no reserve areas to ensure zone-specific flexibility under load, so that the print 10 is clearly visible even through the nonwoven 3.

[0069] Zone 9 has point-shaped structures 12 of the connecting areas 6, by means of which the elastic film 7 is connected to at least one layer of nonwoven 3, 4 to form reserve areas 5. Zone 9 has a high degree of flexibility as well as a high resilience, so that the waist area 2 conforms to the person wearing the pull-up diaper 1.

[0070] In the illustrated embodiment, the ratio of the reserve areas 5 to ensure zone-specific compliance of zone 9 to zone 8 is 5:1.

[0071] Relative to the area of ​​waist area 2, the area share of zone 9 is 75% and the area share of zone 8 is 25%.

[0072] Fig. 2 shows a sectional view of the closed waist area 2 with uniform reserve areas 5. The elastic arrangement comprises an elastic film 7 and a layer of nonwoven 3 made of a corrugated nonwoven fabric.

[0073] This is a thermally bonded spunbonded nonwoven fabric, with a spunbonded nonwoven fabric made of continuous filaments being used in the exemplary embodiment. The nonwoven layer 3 is formed into a corrugated shape before being bonded to the elastic film 7. When the elastic film 7 is joined to form the corrugated nonwoven layer 3, bonding regions 6 are created by ultrasonic welding, in which a bond between the nonwoven layer 3 and the elastic film 7 is formed by melting and bonding.

[0074] First example:

[0075] In the exemplary embodiment, the elastic film 7 is presented as a multilayer coextruded film with a core layer and two outer layers. The core layer consists of thermoplastic elastomers, and the outer layer is made of polypropylene. The core layer has a thickness of 37 μm, while the outer layers are 3 μm thick.

[0076] Second example:

[0077] The elastic film 7 is listed as a multilayer coextruded film, with a core layer and two outer layers. The core layer consists of thermoplastic elastomers, and the outer layer is made of polypropylene. The core layer has a thickness of 25 μm, while the outer layers are 2 μm thick.

[0078] The reserve areas 5 have no or only a very weak bond between the layer of nonwoven 3 and the elastic film 7 and preferably enclose cavities.

[0079] In the exemplary embodiment, the web-to-groove ratio of the roller, which creates a wave-like shape in the nonwoven layer 3, is 1:6. As a result, the spacing of the connecting regions 6 in the illustrated embodiment is 3 mm. Within the connecting regions 6, there is a form-fitting and partially material-fitting bond between the solidified elastic material of the elastic film 7 and the nonwoven layer 3. During this bonding process, the surface of the elastic film 7 is fused to the nonwoven fabric of the nonwoven layer 3.

[0080] The width of the point-shaped connection areas 6 is between 0.1 and 1 mm, whereby in the illustrated embodiment a width of 0.5 mm is realized.

[0081] Fig. 3 shows another sectional view of the waist area 2. The representation of the waist area 2 of zone 8 essentially corresponds to the description in Fig. 2. In addition, a further layer of nonwoven fabric 4 is arranged on the side facing away from the reserve area 5 and fixed by means of the connecting areas 6. The layer of nonwoven fabric 4 is positioned smoothly and not wavy on the elastic film 7. As a result, a print 10 applied to the elastic film 7 can be perceived by observing persons through the layer of nonwoven fabric 4. At the same time, the layer of nonwoven fabric 4 protects the print 10.

[0082] Fig. 4 shows a third variant of the waist region 2 in a sectional view and essentially corresponds to the illustration in Fig. 2. The nonwoven layers 3 and 4 are connected to the elastic film 7 in a smooth and non-wavelike manner by the connecting regions 6. As a result, a print 10 applied to the elastic film 7 or to the nonwoven layer 3 or 4 is visible from the outside.

[0083] Fig. 5 shows a third variant of the waist region 2 in a sectional view and essentially corresponds to the illustration in Fig. 2. The waist region 2 has a zone 9 in which two layers of nonwoven 3, 4 are arranged in a mirror-inverted wave shape around the elastic film 7 to form reserve regions 5 and are fixed by means of connecting regions 6. The connecting regions 6 are designed as ultrasonic welding points, which are created by the contact of a roller with pyramid-like tips with a flat sonotrode.

[0084] The layers of nonwoven 3, 4 are made of polypropylene and have a basis weight of 6 g / m 2 The layers of nonwoven 3 and 4 have a transparency of 90%.

[0085] Fig. 6 shows a schematic representation of the structures 11 of the connecting regions 6, designed as corrugations arranged in mirror images of each other. This achieves a high degree of elastic extensibility and thus favorable stretch properties of the closed waist region 2.

[0086] Fig. 7 shows another variant of the structures 11 of the connecting areas 6 in a herringbone pattern. This variant realizes a favorable restoring force in the vertical direction of the waist area 2.

[0087] Fig. 8 shows a third variant of the structures 11 of the connecting areas 6, depicted as a checkered pattern. This variant realizes a favorable restoring force in both the vertical and horizontal directions of the waist area 2.

Claims

Patent claims 1. Pull-up diaper (1) with a closed waist region (2), in which an elastic arrangement is combined with at least one layer of nonwoven (3, 4) to form reserve regions (5), wherein connecting regions (6) are arranged between the elastic arrangement and the layer of nonwoven (3, 4), wherein the elastic arrangement is designed as a flat structure in the form of an elastic film (7), characterized in that the connecting regions (6) are designed as ultrasonic welding structures.

2. Pull-up diaper according to claim 1, characterized in that the elastic arrangement is arranged between two layers of nonwoven (3, 4).

3. Pull-up diaper according to claim 1 or 2, characterized in that the elastic film (7) has at least one layer of styrene block copolymers and / or polyolefin elastomers (POE) and / or thermoplastic elastomers (TPE).

4. Pull-up diaper according to claim 1 or 2, characterized in that the elastic film (7) has outer layers made of polypropylene.

5. Pull-up diaper according to one of claims 1 to 4, characterized in that the elastic film (7) has a thickness of more than 10 pm, preferably more than 15 pm, in particular more than 20 pm and / or less than 70 pm, preferably less than 60 pm, in particular less than 50 pm.

6. Pull-up diaper according to one of claims 1 to 5, characterized in that the nonwoven layer (3, 4) is made of polypropylene.

7. Pull-up diaper according to one of claims 1 to 6, characterized in that the nonwoven layer (3, 4) has a specific surface weight of more than 4 g / m 2 , preferably more than 5 g / m 2 , especially more than 6 g / m 2 and / or less than 50 g / m 2 , preferably less than 40 g / m 2, especially less than 30 g / m 2 has.

8. Pull-up diaper according to one of claims 1 to 7, characterized in that the waist region (2) comprises a first zone (8) and at least one further zone (9) which has different reserve areas (5) to ensure a zone-specific Show flexibility under load.

9. Pull-up diaper according to one of claims 1 to 8, characterized in that the connecting areas (6) are point-shaped structures (12).

10. Pull-up diaper according to one of claims 1 to 9, characterized in that the connecting regions (6) have structures (11) which are arranged in a horizontal direction.

11. Pull-up diaper according to one of claims 1 to 10, characterized in that the connecting regions (6) have structures (11) which are arranged in a vertical direction.

12. Pull-up diaper according to one of claims 1 to 11, characterized in that the connecting regions (6) have structures (11) which are arranged offset from one another.

13. Pull-up diaper according to one of claims 1 to 12, characterized in that the elastic film (7) has a print (10), wherein the nonwoven layer (3, 4) has a degree of transparency of more than 85%, preferably more than 90%, in particular more than 95% for the visibility of the print (10).

14. A method for producing a pull-up diaper (1) according to one of claims 1 to 13, comprising the following steps: - formation of at least one corrugated layer of nonwoven (3, 4) with variable elevations and depressions, - extrusion of an elastic film (7), - Production of an elastic arrangement as a flat structure by forming connecting regions (6) in the form of ultrasonic welding structures between at least one layer of nonwoven (3, 4) and the elastic film (7).

15. Use of a pull-up diaper (1) with a closed waist area made of an elastic film (7) and at least one layer of nonwoven (3, 4) which are connected by means of ultrasonic welding structures, for the body-hugging design of the fit.

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