DE202020005540U1 - Multi-layer wipe with improved reach for cleaning and / or disinfecting surfaces - Google Patents

Abstract

Disposable wipe (1) for cleaning and / or disinfecting surfaces, comprising at least two non-woven layers arranged on top of one another, characterized in that the first non-woven layer contains> 30% by weight natural fibers and / or regenerated fibers and <70% by weight synthetic fibers or consists of it and the second nonwoven layer contains or consists of 5 to 95% by weight natural fibers and / or regenerated fibers and at least 5% by weight synthetic fibers, the second nonwoven layer having a greater absorption capacity for liquid than the first nonwoven layer, and the two Fleece layers are connected to one another at a large number of connection points (2), with at least 80% of the connection points (2) being arranged at a maximum distance of 1 cm from the edge (3) of the disposable wipe (1).

Description

The present invention relates to a multilayer wipe with improved reach for cleaning and / or disinfecting surfaces.

It is known that all kinds of germs thrive on surfaces, especially when they are in a warm and / or humid environment. Regular cleaning and / or disinfection of these surfaces is essential in public as well as private areas in order to carefully remove dirt and germs and to ensure the cleanliness of the respective surface. Of course, this is especially important in places like schools, swimming pools, restaurants and cultural institutions where large numbers of people meet regularly, and in places like hospitals and doctor's offices where sick people and people with weakened immune systems can be found. Regular and effective cleaning of surfaces, especially in bathrooms and kitchens, is also necessary in the private sector in order to effectively remove germs and prevent them from spreading.

To clean or disinfect surfaces, a cleaning agent or disinfectant is often applied to a nonwoven, which is then used for cleaning, the nonwoven being washed after cleaning. This is in need of improvement in several ways. On the one hand, it is possible that you forget to wash the nonwoven thoroughly and instead just rinse it out under running water, whereby germs remain on the surface and can spread. Even if the wash is not carried out immediately, the germs on the surface of the nonwoven will spread if it is temporarily stored in the washing machine until the next start of a wash cycle. In this way, the nonwoven actually intended for cleaning even poses a risk of dragged-out contamination or a source of contamination.

This problem is countered in the prior art by providing disposable wipes which are provided for cleaning or disinfecting surfaces and are therefore pre-soaked with an antimicrobial impregnating agent.

It is known that corresponding pre-soaked disposable wipes should comprise several layers of nonwoven fabric, which are usually composed differently. On the one hand, this causes sufficient stability of the wipe and, on the other hand, in the case of layers of differently composed nonwovens, if the nonwovens are selected accordingly, it can ensure that, for example, a first layer offers good liquid absorption, while a second layer offers good liquid release.

For example, a multi-layer, disposable wipe comprising a cleaning layer, an absorbent layer and a barrier layer is disclosed in US Pat U.S. 5,090,832 described. The cloth further comprises an encapsulated cleaning agent which soaks the cleaning layer after the capsule has been broken.

the U.S. 4,298,649 describes a disposable floor wipe with two different layers of thermoplastically processed polypropylene, one layer of which is said to have absorbent properties due to the foaming of the polypropylene. The two layers are connected to one another by means of a heat and pressure treatment.

the WO 02/36339 A2 describes a multi-layer pre-soaked wipe, the at least two layers of which contain a mixture of hydrophilic and hydrophobic fibers. The wiping cloth comprises at least one cleaning layer and one layer that serves as a liquid reservoir.

A similar approach for a multilayer, disposable floor wipe is shown in US Pat EP 1 212 478 A1 tracked. An antimicrobial property is given to the floor wipes by the addition of preferably silver particles.

In the case of multi-layer wipers, the individual layers must be connected to one another for adequate stabilization of the wipe, in particular in order to be able to withstand the demanding mechanical loads when wiping surfaces. This is problematic, however, because the connection of the layers, which can be produced, for example, by sewing, pressing or welding, reduces the absorption capacity of the wipes for liquid, so that the range of the pre-soaked wipes, i.e. the area that can be effectively covered with a pre-soaked wipe wetted or cleaned, is also reduced.

This problem of reducing the range by welding the layers is in the US 2019/0246865 A1 thematized, which reveals a multi-layered disposable floor wipe, which should offer an optimized liquid discharge by dispensing with welding of the ends.

Object of the invention

It is the object of the present invention to provide an alternative multi-ply disposable wipe for cleaning and / or disinfecting surfaces, which overcomes the aforementioned disadvantages known from the prior art and in particular has a number of interconnected layers compared to conventional wipes increased range.

General description of the invention

The invention solves this problem with the features of the claims and in particular with a disposable wipe for cleaning and / or disinfecting surfaces, comprising at least two nonwoven layers arranged on top of one another, the first nonwoven layer> 30 wt .-% natural fibers and / or regenerated fibers and < Contains or consists of 70% by weight synthetic fibers and the second nonwoven layer contains or consists of 5 to 95% by weight natural fibers and / or regenerated fibers and at least 5% by weight synthetic fibers, the second nonwoven layer having a greater absorption capacity for liquid than the first nonwoven layer, and wherein the two nonwoven layers are connected to one another at a plurality of connection points, with at least 80% of the connection points being arranged at a distance of at most 1 cm from the edge of the disposable wipe.

For the purposes of the invention, a nonwoven layer is understood to mean a flat textile structure which is made up of fibers of the same type or of different types.

It has been shown that the combination of fleece layers according to the invention gives the disposable wipe according to the invention impregnated with an impregnating agent, despite the connection of the fleece layers, a surprisingly high range when cleaning and / or disinfecting surfaces, especially when the fleece layers are exclusively or at least predominantly in the Edge areas are connected to each other. This is surprising since multilayer wipes known from the prior art, the different layers of which are connected to one another e.g. by welding, sewing or pressing, show a significant decrease in the range when cleaning and / or disinfecting surfaces. The absorption capacity of a wipe for impregnating agent therefore decreases significantly as a result of the connection of the individual fleece layers. Nevertheless, it is necessary for sufficient stability of the wipe.

In the context of the present invention, it has now surprisingly been found that a targeted choice of the composition of the nonwoven layers of a disposable wipe in combination with a connection of the nonwoven layers exclusively or primarily in the edge areas of the disposable wipe has a higher priority than multilayer wipes whose individual layers take precedence are connected in the area, causes a significantly increased range.

The range of the disposable wipe according to the invention, ie the increase in the storage capacity of impregnating agent, due to the composition of the fleece layers according to the invention and the type of their connection exclusively or predominantly in the edge areas of the fleece layers is preferably at least 20%, at least 30% or at least 40 % increased compared to a wipe with several identically composed fleece layers, the individual fleece layers of which are mainly or exclusively connected over the surface. Compared to differently composed multilayer wipes, the range of wipes according to the invention is increased many times more.

In the context of the present invention, two factors have therefore been found which have an extremely positive effect on the range of soaked wipes. This is, on the one hand, the composition of the first and second nonwoven layers according to the invention and, on the other hand, the positions of the connection points according to the invention, where it was found that these are as exclusively or at least predominantly in the edge areas, ie with a maximum of 1 cm distance from the edge of the Wiping cloth should lie so that no or only a few connection points are arranged in the area lying between the edge regions and the individual fleece layers only or mainly hold together in the edge regions.

The individual fleece layers of a disposable wipe according to the invention are connected to one another at a large number of connection points, with at least 80% of the connection points being arranged at a maximum distance of 1 cm from the edge of the wipe. The connection of the fleece layers can in particular be a thermal connection by welding the layers, in particular by ultrasonic welding, or a mechanical connection by sewing or pressing the layers.

With the disposable wipe according to the invention, at least 85%, at least 90%, at least 95% or even 100% of the connection points are preferably arranged at a distance of at most 1 cm from the edge of the wipe. The distance to the edge of the wipe is preferably <1 cm, particularly preferably <0.5 cm or <0.3 cm.

Although the fleece layers of the disposable wipe according to the invention are connected to one another at a large number of connection points, this does not mean that these connection points are also necessarily delimited from one another, as is the case, for example, with a large number of weld points. Rather, the fleece layers can also be connected to one another in a continuous line, for example in a welded line, which is at a distance from the edge of the wipe of max. 1 cm, preferably <1 cm, particularly preferably <0.5 cm or <0, 3 cm is arranged parallel to this and in particular runs along the entire edge or at the aforementioned distance from it.

Regardless of whether the connection of the individual fleece layers takes place at mutually delimited connection points (for example using several connection points) or at interconnected connection points (for example using a connection line), it is preferred that in the area surrounded by the edge areas, the distance is greater than 1 cm to the edge, no or only a few connection points are arranged. This means that the individual layers are held together in any case by their connection in the edge area, with additional connection points in the surface optionally providing additional stability.

The inventive connection of the nonwoven layers, which is mainly or exclusively in the edge areas of the superimposed nonwoven layers or the wipe that contains them, is the range of an impregnated wipe according to the invention compared to wipes whose individual nonwoven layers are mainly connected in the area , elevated.

This “range” is understood to mean an area whose surface is sufficiently wetted or contacted with a defined amount of impregnating agent contained in the wipe when wiping with the respective wipe.

The disposable wipe according to the invention offers both a good liquid absorption capacity, i.e. a good storage capacity for impregnating agents, and a good liquid discharge capacity, even when the nonwoven layers are welded to one another or connected to one another in some other way, if the connection points are arranged predominantly or exclusively in the edge area of the wipe. The good ability to dispense fluids is achieved in particular by the composition of the first nonwoven layer which, when the wipe is used, makes direct contact with the surface to be cleaned and can therefore also be referred to as a “cleaning layer”.

The good liquid absorption capacity or storage capacity is achieved in particular by the second nonwoven layer of the disposable wipe according to the invention. The second fleece layer is arranged parallel to the first fleece layer on the latter and is not in contact with the surface to be cleaned when the wipe is used. The second fleece layer stores the impregnating agent and releases it to the first layer, which is in contact with the surface to be cleaned, during the cleaning of surfaces with the wipe according to the invention. Due to its function as a reservoir for impregnating agents, the second fleece layer is also referred to as the “storage layer”. It has a greater absorption capacity for liquid than the first fleece layer, for example one by at least the factor 2 or by at least the factor 3 or 4th larger capacity.

Both the first nonwoven layer and the second nonwoven layer of a disposable wipe according to the invention contain natural fibers and / or regenerated fibers. “Natural fibers” are understood to mean all fibers of natural origin that can be used directly without any further chemical conversion reactions. “Regenerated fibers”, on the other hand, are fibers that are produced from naturally occurring, renewable raw materials using chemical processes.

The natural fibers and / or regenerated fibers contained in the first nonwoven layer and / or the natural fibers and / or regenerated fibers contained in the second nonwoven layer are preferably selected independently of one another from the group consisting of viscose fibers, modal fibers, lyocell fibers, cellulose fibers, cuprofibers, cotton fibers, jute fibers, hemp fibers and flax fibers and any mixtures thereof.

In addition to natural fibers and / or regenerated fibers, the first nonwoven layer of a wipe according to the invention also contains synthetic fibers, the proportion of which in the first nonwoven layer is <70% by weight. The synthetic fiber content in the first nonwoven layer is preferably 10 to 60% by weight, in particular 15-50% by weight, more preferably 20-40% by weight and particularly preferably 30-35% by weight. This synthetic fiber content is lower than in the cleaning layers of wipes known from the prior art and it is attributed in particular to the ratio of natural fibers and / or regenerated fibers according to the invention that the loss of range resulting from the connection of the fleece layers is significantly less than in the prior art known wipes that have a cleaning layer with a different ratio of natural or regenerated fibers to synthetic fibers.

The synthetic fibers contained in the first nonwoven layer are preferably made of PLA (polylactic acid). The proportion of PLA in the first nonwoven layer is preferably 10 to 60% by weight, in particular 15-50% by weight, more preferably 20-40% by weight and particularly preferably 30-35% by weight.

Natural fibers and / or regenerated fibers contained in the first nonwoven layer are in particular viscose fibers and cellulose fibers. These are preferably contained at least 50% by weight in the first nonwoven layer, more preferably at least 60% by weight and most preferably about 60 to 70% by weight or 65 to 70% by weight.

In embodiments which have been found to be particularly preferred, the first nonwoven layer has a composition of 60 to 70% by weight viscose fibers and 30 to 40% by weight PLA and preferably does not contain any further constituents.

The weight per unit area of the first (non-impregnated) fleece layer is approx. 50 to 70 g / m ² , depending on the proportion of PLA and the choice of natural fiber / regenerated fiber. In the preferred embodiment, in which the first nonwoven layer consists of 60 to 70% by weight viscose fibers and 30 to 40% by weight PLA, the weight per unit area of the first nonwoven layer is approximately 57 g / m ² .

The natural fibers and / or regenerated fibers contained in the second nonwoven layer are in particular also viscose fibers and / or cellulose fibers, in particular cellulose fibers, since these have an excellent storage capacity for impregnating agents. The viscose fibers and / or cellulose fibers are preferably contained in the second nonwoven layer to the extent of 50 to 95% by weight, more preferably 60 to 85% by weight and most preferably 65 to 80% by weight.

In addition, according to the invention, the second nonwoven layer also contains at least 5% by weight of synthetic fibers. The synthetic fibers can in particular be selected from the group comprising fibers with or made of polyethylene (PE), polyesters, in particular PET (polyethylene terephthalate), and polypropylene (PP).

According to a preferred embodiment, the synthetic fibers contained in the second nonwoven layer are or comprise bicofibers. Bicofibers (“bi-component fibers” or “bicomponent fibers”) are composite fibers that comprise a core made of a first material and a sheath made of a second material, the first material having a higher melting point than the second material. The first material can particularly preferably be PET and the second material PE. These fibers are particularly suitable for a thermal treatment with which the at least two fleece layers of the disposable wipe according to the invention can be connected to one another, since the increased temperature causes the jacket material to begin to melt, while the first material from which the core is made does not yet or at least does not melt to the same extent and thus the stability is preserved by the higher-melting core.

In particular, the second nonwoven layer comprises 65 to 95% by weight, in particular 75 to 95% by weight, cellulose fibers and 5 to 35% by weight, in particular 5 to 25% by weight, bicofibers or consists thereof.

The weight per unit area of the second (non-impregnated) fleece layer is approx. 120 to 150 g / m ² , depending on the proportion and choice of natural fibers / regenerated fibers and synthetic fibers. In the preferred embodiment, in which the second nonwoven layer consists of 75 to 95% by weight cellulose fibers and 5 to 25% by weight bicofibres, the weight per unit area of the second nonwoven layer is approximately 130 to 140 g / m ² .

The first and the second nonwoven layer are preferably connected to one another by a thermal treatment. The thermal treatment is preferably a welding of the fleece layers, in particular an ultrasonic welding. However, another type of connection, in particular by means of pressing or sewing, is basically suitable.

The disposable wipe according to the invention is preferably already pre-soaked, i.e. in particular the second non-woven layer is impregnated with an impregnating agent. Alternatively, a non-impregnated disposable wipe according to the invention can, however, also contain an impregnating agent encapsulated in a liquid-impermeable shell, the shell being designed to break or burst under the application of pressure, thus allowing the impregnating agent to be released into the surrounding fleece layers. This ensures that the disposable wipe does not lose impregnation agent before it is used for cleaning and / or disinfection, e.g. by partially drying out, or that the impregnation agent is subject to unwanted oxidation processes over time, especially when stored for a long time. In this embodiment, the user only needs to break the liquid-impermeable cover immediately before the intended cleaning of surfaces with the wipe according to the invention by exerting slight pressure, for example by pressing between the fingers or with the hand, so that the impregnating agent emerges and the at least two Can wet nonwoven layers.

The impregnating agent contained in the disposable wipe according to the invention preferably contains at least one compound with antimicrobial properties. Furthermore, the impregnating agent can contain all ingredients contained in conventional impregnating agents, in particular water, oil, preservatives, surfactants, emulsifiers, skin care ingredients, moisturizing ingredients and any combinations of these.

Optionally, the disposable wipe according to the invention also contains a third fleece layer, which is preferably impermeable to liquids and can therefore function as a barrier layer.

This third non-woven layer is preferably arranged on the side of the second non-woven layer opposite the first non-woven layer and connected to the second non-woven layer at a large number of connection points, with at least 80% of the connection points at a distance of max. 1 cm from the edge of the disposable - Wipes are arranged. Preferably, at least 85%, at least 90%, at least 95% or 100% of the connection points are arranged at a distance of at most 1 cm from the edge of the disposable wipe. The connection of the second nonwoven layer to the third nonwoven layer is further preferably a connection by welding, in particular by ultrasonic welding.

The third fleece layer consists in particular of plastic, preferably of polypropylene (PP). Optionally, the third nonwoven layer can have fastening means, e.g. tapes, buttons, hooks, a zip fastener or, in particular, a Velcro fastener, or be connected to these, by means of which the wiper according to the invention can be fastened to a wiper device. Alternatively, the third non-woven layer can also serve as a counter-layer for the aforementioned fastening means, which does not have these fastening means itself, but can be brought into engagement with them, for example by attaching a Velcro fastener arranged on a wiping device to the third non-woven layer or one arranged on a wiping device Hook or button engages in an eyelet arranged on the third fleece layer.

Optional further fleece layers can be arranged between the second and the third fleece layer.

Detailed description of the invention

The invention will now be described in more detail with the aid of figures and with the aid of an exemplary embodiment.

the 1 shows a schematic view of a preferred embodiment of a disposable wipe according to the invention 1 , at which 100% of the connection points 2 , by means of which the first and second nonwoven layers are held together, in the edge regions of the disposable wipe 1 are arranged and less than 1 cm from the edge 3 are away. The connection points 2 are designed in the embodiment shown in the form of a continuous line, which can in particular be a weld line and parallel to the edge 3 of the disposable wipe 1 runs.

the 2 shows a schematic view of a further embodiment of a disposable wipe according to the invention 1 , in which the connection of the fleece layers does not only exist in the edge areas, but also to a small extent in the area surrounded by the edge areas. In the embodiment shown, there are therefore also three connection points in the area surrounded by the edge regions 2 arranged the disposable wipe 1 give an additional stability. There are numerous connection points in the edge areas 2 arranged in contrast to that in the 1 The embodiment shown does not form a continuous line, but spaced apart in the form of a dashed line and parallel to the edge 3 of the disposable wipe 1 are arranged. The connection points on this connection line 2 each have a distance of less than 1 cm from the edge 3 on.

Example 1: Determination of the range of a disposable wipe according to the invention in comparison to disposable wipes not according to the invention

• Wischtuch 1 (W1) enthielt die in der Tabelle 1 angegebene erfindungsgemäße Zusammensetzung der Vliesschichten. Die Verbindung der Vliesschichten erfolgte mittels Ultraschallverschweißung mit einem rautenförmigen Schweißmuster, bei dem in definierten Abständen in einer rautenförmigen Anordnung zueinander beabstandete und über die gesamte Fläche des Wischtuchs verteilte Schweißpunkte gesetzt wurden, die die einzelnen Vliesschichten zusammenhielten.

Tabelle 1: Zusammensetzung der drei Vliesschichten von W1, W3 und W5 3. Vliesschicht 100 Gew.-% PP (35 g/m²) 2. Vliesschicht 85 Gew.-% Cellulosefasern, 15 Gew.-% Bicofasern, (135 g/m²) 1. Vliesschicht 65 Gew.-% Viskosefasern, 35 Gew.-% PLA, (57 g/m²) The following six wipes (W1 to W6) were provided to determine the range of a preferred disposable wipe according to the invention and to compare with the range of multi-layer disposable wipes not according to the invention:

• Wipe 1 (W1) contained the composition of the nonwoven layers according to the invention given in Table 1. The connection of the fleece layers was carried out by means of ultrasonic welding with a diamond-shaped welding pattern, in which weld points spaced apart from one another in a diamond-shaped arrangement and distributed over the entire surface of the wipe were set, which held the individual fleece layers together.

Table 1: Composition of the three fleece layers of W1, W3 and W5 3rd fleece layer 100% by weight PP (35 g / m ² ) 2nd fleece layer 85 wt .-% cellulose fibers, 15 wt .-% bicofibers, (135 g / m ² ) 1st fleece layer 65% by weight viscose fibers, 35% by weight PLA, (57 g / m ² )

Wipe 2 (W2) contained the non-inventive composition of the nonwoven layers given in Table 2. The connection of the fleece layers was carried out by means of ultrasonic welding with a diamond-shaped welding pattern, in which weld points were set at defined intervals in a diamond-shaped arrangement and distributed over the entire surface of the wipe, which held the individual fleece layers together. Table 2: Composition of the three fleece layers of W2, W4 and W6 3rd fleece layer 100% by weight PP (35 g / m ² ) 2nd fleece layer 85 wt .-% cellulose fibers, 15 wt .-% bicofibers, (135 g / m ² ) 1st fleece layer 30% by weight viscose fibers, 70% by weight PET fibers

Wipe 3 (W3) was a wipe according to the invention, the fleece layers of which are identical to those of the wipe 1 were composed (which also had the composition given in Table 1). In contrast to the wipe 1 were the individual fleece layers of wiping cloth 3 but only connected in the edge areas by means of ultrasonic welding, ie all connection points were at a maximum distance of 1 cm from the edge of the wipe.

Wipe 4th (W4) was a wiper whose fleece layers were identical to those of the wiper 2 were composed (which also had the composition indicated in Table 2, not according to the invention). In contrast to the wipe 2 were the individual fleece layers of wiping cloth 4th but only connected in the edge areas by means of ultrasonic welding, ie all connection points were at a maximum distance of 1 cm from the edge of the wipe.

Wipe 5 (W5) contained the composition according to the invention of the nonwoven layers given in Table 1, which the wipes W1 and W3 also had. The connection of the fleece layers was carried out by means of ultrasonic welding with a point-shaped welding pattern, in which weld points that were spaced apart from one another were distributed over the entire surface of the wipe at defined distances, which held the individual fleece layers together.

Wipe 6th (W6) contained the non-inventive composition of the nonwoven layers indicated in Table 2, which the wipes W2 and W4 also had. The connection of the fleece layers was carried out by means of ultrasonic welding with a point-shaped welding pattern, in which weld points that were spaced apart from one another were distributed over the entire surface of the wipe at defined distances, which held the individual fleece layers together.

The wipes W1, W3 and W5 thus had the composition of the nonwoven layers according to the invention, but only in the case of the wiper W3 these nonwoven layers were also connected to one another according to the invention, in that at least 80% of the connection points were at a distance of max. 1 cm from the edge of the disposable wipe were arranged. Consequently, only wipe W3 was a wipe according to the invention, while all other wipes served as comparison wipes.

The wipe according to the invention W3 was compared with the five wipes not according to the invention (W1, W2, W4, W5 and W6) with regard to its range.

For this purpose, all wipes were soaked in the same impregnating agent and used in an identical manner to clean the floor. While the wipes W1, W2, W5 and W6 had exactly the same dimensions, the wipes W3 and W4 were used in a smaller wipe size. This difference was taken into account in the amount of impregnating agent used, so that approximately the same amount of impregnating agent per area of wipe was used in all wipes.

Table 3 below lists the parameters of the wipes used and the results obtained with them with regard to the range of the wipes.

Table 3: Determination of the range of an impregnated wipe W3 according to the invention in comparison with the wipes W1, W2, W4, W5 and W6 not according to the invention W1 W2 W3 W4 W5 W6 Wiper area [m ² ] = cloth size [m ² ] 0.06 0.06 0.026 0.026 0.06 0.06 Total drinking quantity [g] 134.85 139.5 58,435 60.45 134.85 139.5 absolute range [m ² ] 24.69 10.57 17.50 12.50 23.55 8.61 Range / wiper area [m ² / m ² ] 411.5 176.2 673.1 480.8 392.5 143.5 Loss of range / wiper surface due to joining [%] 39 63 - - 42 70 Range / drinking quantity [m ² / g] 0.18 0.08 0.30 0.21 0.17 0.06 Loss factor range / drinking quantity by combining [%] 39 63 - - 42 70

As can be seen from Table 3, the composition of the nonwoven layers according to the invention has a positive effect on the range of the corresponding wipes, because this is in comparison of W1 to W2 (both welded according to a diamond-shaped weld pattern) and in comparison of W3 to W4 (both according to the invention only welded in the edge areas) and also significantly increased in comparison with W5 to W6 (both welded according to a spot weld pattern), in some cases by more than 100%.

However, only the type of connection of the fleece layers according to the invention, in which the individual fleece layers of a wiper are unconnected or almost unconnected in the area surrounded by its edge areas, and in which the fleece layers are only held together by connecting points that are in the edge areas with a distance of max. 1 cm to the edge so that the range of a corresponding wipe is significantly increased.

The features of the invention disclosed in the above description, in the examples and in the claims can be essential both individually and in any combination for the implementation of the invention in its various embodiments.

QUOTES INCLUDED IN THE DESCRIPTION

This list of the documents listed by the applicant was generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Patent literature cited

• US 5090832 [0006]
• US 4298649 [0007]
• WO 0236339 A2 [0008]
• EP 1212478 A1 [0009]
• US 2019/0246865 A1 [0011]

Claims (7)

Disposable wipe (1) for cleaning and / or disinfecting surfaces, comprising at least two non-woven layers arranged on top of one another, characterized in that the first non-woven layer contains> 30% by weight natural fibers and / or regenerated fibers and <70% by weight synthetic fibers or consists of it and the second nonwoven layer contains or consists of 5 to 95% by weight natural fibers and / or regenerated fibers and at least 5% by weight synthetic fibers, the second nonwoven layer having a greater absorption capacity for liquid than the first nonwoven layer, and the two Fleece layers are connected to one another at a large number of connection points (2), with at least 80% of the connection points (2) being arranged at a maximum distance of 1 cm from the edge (3) of the disposable wipe (1). Disposable wipe (1) Claim 1 , characterized in that 100% of the connection points (2) are arranged at a maximum distance of 1 cm from the edge (3) of the disposable wipe (1). Disposable wipe (1) Claim 1 or 2 , characterized in that the connection of the first non-woven layer with the second non-woven layer is a connection by welding, in particular by ultrasonic welding. Disposable wipe (1) according to one of the preceding claims, characterized in that the synthetic fibers contained in the first fleece layer consist of PLA and / or that the natural fibers and / or regenerated fibers contained in the first fleece layer and / or those contained in the second fleece layer Natural fibers and / or regenerated fibers are selected independently of one another from the group comprising viscose fibers, modal fibers, lyocell fibers, cellulose fibers, cupro fibers, cotton fibers, jute fibers, hemp fibers and flax fibers and any mixtures of these. Disposable wipe (1) according to one of the preceding claims, characterized in that the synthetic fibers contained in the second nonwoven layer are or comprise bicofibers, the bicofibers comprising a core made of a first material and a sheath made of a second material, the first Material has a higher melting point than the second material, and optionally the first material is PET and the second material is PE. Disposable wiping cloth (1) according to one of the preceding claims, characterized by a third non-woven layer, wherein the third non-woven layer is arranged on the side of the second non-woven layer opposite the first non-woven layer and is connected to it at a plurality of connection points, with at least 80% the connection points are arranged at a maximum distance of 1 cm from the edge of the disposable wipe (1). Disposable wipe (1) Claim 6 , characterized in that the connection of the second non-woven layer with the third non-woven layer is a connection by welding, in particular by ultrasonic welding.

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