DE102019129734A1 - Wiping cloth for cleaning and disinfecting objects and surfaces - Google Patents

Abstract

The present invention relates to a wipe for cleaning and disinfecting objects and / or surfaces. The wipe contains a liquid-storing base material in the form of a fiber mixture. The fiber blend includes positively charged regenerated cellulose fibers, synthetic fusion bonding fibers and synthetic microfibers. The invention also relates to a dispenser and a cleaning device with the wipe. The invention also relates to a special use of the wiper and a method for producing a wiper for cleaning and disinfecting objects and / or surfaces.

Description

The present invention relates to a wipe for cleaning and disinfecting objects and / or surfaces. The invention further relates to a dispenser and a cleaning device with the aforementioned wiper. The invention also relates to a special use of the aforementioned wiper and a method for producing a wiper for cleaning and disinfecting objects and / or surfaces.

A certain storage capacity for a cleaning agent or disinfectant used is generally desired for wipers. This is particularly the case with floor wipes. That is why many wipes contain cellulose-based fibers such as cotton fibers or viscose fibers, which can absorb water and temporarily bind it within their fibers, which means that they have good storage capacity.

Disinfectants that contain a quaternary ammonium compound (QAV) as an antimicrobial active component are used, among other things, for surface disinfection. Quaternary ammonium compounds are ionic, nitrogen-containing compounds and are positively charged. Conventional cellulose-based fibers, on the other hand, are normally negatively charged. If a wipe with conventional cellulose-based fibers is used in combination with a QAV-containing disinfectant, the positively charged quaternary ammonium compound binds to the negatively charged fibers of the wipe due to ionic forces of attraction. By binding the quaternary ammonium compound, the wipe removes the antimicrobially active ingredient from the disinfectant, which impairs the effectiveness of the disinfection process. For this reason, wipes with a high proportion of conventional cellulose-based fibers are now generally viewed as incompatible with QAV-containing disinfectants.

Wipes made of synthetic fibers such as fibers made of polyethylene terephthalate (PET) or polypropylene (PP) do not retain quaternary ammonium compounds and are therefore well compatible with QAV-containing disinfectants from a chemical point of view. However, the wipes then only have a low storage capacity, since the synthetic fibers are not absorbent and water storage can only be achieved through capillary bonding between the fibers. In order to ensure sufficient storage capacity, especially in the case of floor wipers, a lot of fiber material must therefore be used. This leads to thick wipes that are unwieldy and expensive and are therefore only used as reusable items. In the field of clinical hygiene, however, the use of reusable items has turned out to be one of the main causes of the spread of germs and nosocomial infections in recent years.

The present invention was based on the object of providing a wipe for the medical field which is particularly well suited for surface disinfection using a QAV-containing disinfectant. In addition, the wipe should have a good cleaning performance. These objects are achieved with a wiper according to claim 1 and a method according to claim 37.

The wipe according to the invention is intended for cleaning and disinfecting objects and / or inanimate surfaces in the medical field. It can be provided that the wiper is held in the hand, for example when it is used for cleaning and disinfecting objects and surfaces other than floor areas. Such a wipe that is held in the hand while wiping and cleaning is also referred to here as a “surface wipe”. The wiping cloth can, however, also be provided for cleaning and disinfecting floor surfaces, in which case it is usually used in conjunction with a corresponding cleaning device (“mop”). Such a wipe provided for cleaning and disinfecting floor surfaces is also referred to here as a “floor wipe”. Any differences that may be provided between the surface and floor wipes (such as, for example, in size and shape or thickness) are described below in connection with the preferred embodiments of the invention.

• - 35 Gew.-% bis 75 Gew.-% positiv geladene Regenerat-Cellulosefasern
• - 15 Gew.-% bis 55 Gew.-% synthetische Schmelzbindefasern
• - 5 Gew.-% bis 35 Gew.-% synthetische Mikrofasern

According to the invention, the wipe comprises a liquid-storing base material. The base material can be understood as the material of which the cloth essentially consists. Liquid-storing means that the base material can absorb liquid, the base material typically also being able to release liquid again during wiping and cleaning. The base material is in the form of a fiber mixture. That is, the base material consists of different fibers that are mixed with one another and are not present separately from one another. The base material or the fiber mixture comprises the following three components:

• - 35 wt .-% to 75 wt .-% positively charged regenerated cellulose fibers
• 15 wt% to 55 wt% synthetic fusion bonding fibers
• - 5% by weight to 35% by weight synthetic microfibers

The above three fiber materials provided according to the invention are typically staple fibers.

The regenerated cellulose fibers according to the invention are chemically modified by an additive compared to conventional regenerated cellulose fibers such as, for example, viscose fibers, that they are positively charged overall. The expression "positively charged" is to be understood as meaning that the fiber material is positively charged in total. The regenerated cellulose fibers according to the invention can therefore also contain negative charges due to corresponding chemical functional groups; however, these are compensated for by the positive charges that are clearly in abundance and do not lead to any significant QAV binding. The exact nature of the regenerated cellulose fibers according to the invention is described in more detail below.

The fusion binding and microfibers according to the invention do not contain any naturally occurring polymers such as cellulose in particular and are also not based on naturally occurring polymers, which is intended to be expressed by the term “synthetic”.

Since the regenerated cellulose fibers are positively charged, quaternary ammonium compounds are not bound to the fibers, or only in small amounts. As a result, the wipe can be compatible with QAV-containing disinfectants, whereby the regenerated cellulose fibers do not lose their advantage of storage capacity or absorbency due to the chemical modification. By using the positively charged regenerated cellulose fibers, the wipe according to the invention can therefore be compatible with QAV-containing disinfectants and can be liquid-storing to a high degree. These two advantages, which are decisive for surface disinfection, are not present in many conventional wipes from the prior art, as shown above.

Another advantage of the wipe according to the invention results from the synthetic microfibers. Thanks to the microfibres, the wiping cloth can absorb dirt better and its cleaning performance can be improved.

Finally, according to the invention, synthetic fusion binding fibers are also provided in the fiber mixture. They can be brought into a softened and flowable state by the influence of heat, which enables other fibers to be partially embedded. Thus, the fusible bonding fibers can give the wipe a strength required for wiping and cleaning. The fusion binding fibers are used to make the wipe stable and resistant, so that it remains intact when wiping and cleaning.

Another advantage of the wipe according to the invention is that it can be produced comparatively inexpensively and that it contains a high proportion of biodegradable material in the form of positively charged regenerated cellulose fibers. Further advantages of the invention result from the preferred embodiments described below.

In a particularly preferred embodiment of the invention, the wipe is provided as a disposable item. If the wipe is used for cleaning and disinfection in the medical field and, according to this preferred embodiment, is disposed of after a single use, the spread of germs and nosocomial infections can be better prevented.

The wipe according to the invention can be provided to the user in a dry state by the manufacturer. However, it can also be advantageous for handling if the wiper is provided by the manufacturer pre-moistened with a disinfectant. This wiper was specially developed for use with disinfectants containing QAV. Accordingly, the disinfectant used for pre-moistening preferably comprises a quaternary ammonium compound as an antimicrobial active ingredient. A QAV-containing disinfectant suitable for pre-moistening is Mikrobac forte from Bode Chemie (Hamburg, Germany). The pre-moistening of the surface wipe with the disinfectant could be, for example, 300% by weight to 400% by weight, based on a dry weight of the surface wipe. For example, if the surface wipe weighs 7 grams dry and 28 grams pre-moistened, this would correspond to a pre-moistening of 300% by weight. In the case of the floor wipe, a higher range can be advantageous for the pre-moistening, for example 750% by weight to 900% by weight, based on a dry weight of the floor wipe. The mentioned areas for pre-moistening represent an actual degree of impregnation of the wipes with the disinfectant. This must be distinguished from the maximum degree of impregnation described below, which is a material-specific parameter and basically indicates the maximum amount of liquid that can be soaked in the material in question.

In order to further improve the cleaning performance, the wiping cloth can have an abrasive coating. The abrasive coating is usually applied to the base material, for example using a gravure printing process. The abrasive coating can be applied on only one side or on both sides of the base material. Furthermore, the abrasive coating is preferably designed in the form of strips, the strips advantageously also being able to have a grid-like pattern. The height of the abrasive coating can be 0.1 mm to 0.8 mm, preferably 0.2 mm to 0.4 mm, which can be measured with a microscope. The height here means the extension of the coating perpendicular to the direction of the areal extension of the wipe. Furthermore, the abrasive coating can be a synthetic polymer (plastic) such as polyethylene (PE), polypropylene (PP), an amorphous polyalphaolefin (APAO), ethylene vinyl acetate (EVA), an ethylene vinyl acetate copolymer (EVAC), a polyamide (PA), an olefin-based thermoplastic elastomer (TPE-O), a crosslinked olefin-based thermoplastic elastomer (TPE-V), a thermoplastic copolyester (TPE-E), a urethane-based thermoplastic elastomer (TPE-U), a thermoplastic copolyamide (TPE-A ), a thermoplastic styrene block copolymer (TPE-S), a styrene-ethylene-butadiene-styrene polymer (SEBS), styrene-butadiene-styrene (SBS) or styrene-ethylene-propylene-styrene (SEPS) or of a such polymer exist. In particular, the abrasive coating comprises or consists of ethylene vinyl acetate (EVA). The material of the abrasive coating also preferably has a Shore A hardness of 50 to 100, in particular 70 to 100, determined DIN 53505: 2000-08 and ISO 868: 2003 (E) , on.

As already mentioned, the wipe consists essentially of the base material. If the aforementioned abrasive coating is present, the wipe then usually consists of the base material, the abrasive coating, optionally a liquid disinfectant (if it is the pre-moistened wipe) and optionally a suture material (if the wipe is sewn as described below) . However, it is also possible that the wipe consists only of the base material, optionally the liquid disinfectant and optionally the suture material, in which case the aforementioned abrasive coating would not be provided.

In addition to the positively charged regenerated cellulose fibers, the synthetic fusion binding fibers and the synthetic microfibers, the base material of the wipe could also contain one or more other fiber materials in an amount of preferably not more than 15% by weight. In this context, for the desired compatibility of the wipe with QAV-containing disinfectants, it should be noted that the base material typically does not contain any fibers made from a naturally occurring polymer and, with the exception of the positively charged regenerated cellulose fibers, also no fibers based on a naturally occurring polymer. Particularly preferably, the base material consists of the positively charged regenerated cellulose fibers, the synthetic fusion binding fibers and the synthetic microfibers.

Preferred embodiments of the invention can also be specified with regard to the weight ranges of the three fiber materials provided according to the invention.

• - 40 Gew.-% bis 65 Gew.-% der positiv geladenen Regenerat-Cellulosefasern
• - 15 Gew.-% bis 50 Gew.-% der synthetischen Schmelzbindefasern
• - 5 Gew.-% bis 25 Gew.-% der synthetischen Mikrofasern

The base material preferably comprises or consists of:

• - 40 wt .-% to 65 wt .-% of the positively charged regenerated cellulose fibers
• 15% to 50% by weight of the synthetic fusion bonding fibers
• - 5% to 25% by weight of the synthetic microfibers

• - 45 Gew.-% bis 60 Gew.-% der positiv geladenen Regenerat-Cellulosefasern
• - 15 Gew.-% bis 35 Gew.-% der synthetischen Schmelzbindefasern
• - 10 Gew.-% bis 25 Gew.-% der synthetischen Mikrofasern

More preferably, the base material comprises or consists of:

• - 45% by weight to 60% by weight of the positively charged regenerated cellulose fibers
• 15% to 35% by weight of the synthetic fusion bonding fibers
• 10% to 25% by weight of the synthetic microfibers

• - circa 50 Gew.-% der positiv geladenen Regenerat-Cellulosefasern
• - circa 35 Gew.-% der synthetischen Schmelzbindefasern
• - circa 15 Gew.-% der synthetischen Mikrofasern

In particular, the base material comprises or consists of:

• - approx. 50% by weight of the positively charged regenerated cellulose fibers
• - about 35% by weight of the synthetic fusion bonding fibers
• - about 15% by weight of the synthetic microfibers

The base material is preferably designed as a nonwoven fabric. Nonwovens can be produced comparatively easily and cheaply. The base material, in particular as a nonwoven, is usually consolidated by needling using high pressure water jets (spunlace process). This can reduce the surface lint tendency. In addition, the base material is normally solidified by partial melting of the fusion bonding fibers. This allows the tensile strength of the base material to be adjusted.

For the wiper, in particular for its base material, advantageous values for size and shape, thickness, weight per unit area, volume weight, sinking time, water retention capacity, maximum degree of impregnation, area performance, tear resistance and QAV compatibility can also be specified. The values relate in particular to the base material without an abrasive coating possibly comprised by the wiper.

The wiping cloth, in particular the base material, can be designed essentially rectangular and have a length of 10 cm to 60 cm and a width of 10 cm to 60 cm. As a surface wipe, it can advantageously have a length of 18 cm to 40 cm, in particular approximately 30 cm, and a width of 18 cm to 40 cm, in particular approximately 30 cm. As a floor wipe, it can advantageously have a length of 40 cm to 60 cm, in particular approximately 43 cm, and a width of 10 cm to 20 cm, in particular approximately 13 cm. The preferred strip-like shape of the floor wipe fits the wipe holders of conventional mop systems.

The wiping cloth, in particular the base material, can have a thickness of 0.5 mm to 5 mm. As a surface wipe, it can advantageously have a thickness of 0.5 mm to 1.5 mm, preferably 0.8 mm to 1.1 mm. A particularly high suction force is desired for the floor wipe, which is why it advantageously has a thickness of 2 mm to 4 mm, preferably 2.5 mm to 3.2 mm. The preferably higher values for the thickness also result, among other things, in a higher weight per unit area and an advantageously higher tear resistance of the floor wipe compared to the surface wipe. The specified values for the thickness refer to the dry, single-layer (i.e. not folded or stacked) wipe or base material. The thickness of the wipe can be determined using a specific measuring pressure of 0.5 kPa on a probe surface of 25 cm ² . In particular, a DMT thickness measuring device from Schröder can be used. In addition, the thickness can be based on DIN EN ISO 9073-2: 1995 to be determined.

The wiping cloth, in particular the base material, can have a weight per unit area of 40 g / m ² to 400 g / m ² . As a surface wipe, it can advantageously have a weight per unit area of 50 g / m ² to 100 g / m ² , preferably 70 g / m ² to 90 g / m ² . As a floor wipe, it can advantageously have a weight per unit area of 200 g / m ² to 400 g / m ² , preferably 220 g / m ² to 300 g / m ² . The specified values for the basis weight refer to the dry, single-ply (i.e. not folded or stacked) wipe or base material. The weight per unit area can be determined based on DIN EN 29073-1: 1992, with the test specimens having an area of 100 cm ² instead of 500 cm ² .

The wiping cloth, in particular the base material, can have a density of 0.077 g / cm ³ to 0.104 g / cm ³ . The specified values for the volume weight refer to the dry wipe or base material. The volume weight can be determined from the weight per unit area and the thickness of the wipe using the following formula: $$\text{Volume weight}\left[{\text{g / cm}}^{\text{3}}\right]=\text{Basis weight}\left[{\text{g / cm}}^2\right]\text{/}\left(\text{thickness}\left[\text{mm}\right]\times 1000\right)$$

The wiping cloth, in particular the base material, can have a sinking time of a maximum of 10 seconds, preferably a maximum of 8 seconds and even more preferably a maximum of 5 seconds. The sinking time is a measure of how quickly the wipe can absorb liquid. A short sinking time can accelerate the cleaning or disinfection process. The sinking time is determined according to the test method described below.

The wipe, in particular the base material, can have a water retention capacity of at least 6 g / g, preferably of at least 8 g / g and even more preferably of at least 10 g / g. The water holding capacity is a measure of how much liquid can be absorbed by the wipe. The greater the water holding capacity, the more area can generally be cleaned and disinfected in one go with the wipe. The water holding capacity is determined according to the test method described below.

The wipe, in particular the base material, can have a maximum degree of impregnation (maximum impregnation) of at least 600% by weight, preferably of at least 700% by weight and even more preferably of at least 800% by weight. The maximum degree of impregnation, like the water holding capacity, is a measure of how much liquid can be absorbed by the wipe. The greater the maximum degree of impregnation, the more surface can generally be cleaned and disinfected in one go with the wipe. The maximum degree of impregnation is determined according to the test method described below.

The wiping cloth, in particular the base material, can have an area performance of at least 16 m ² , preferably of at least 18 m ² and even more preferably of at least 20 m ² . These values refer to the floor wipe. The area performance is a measure of how much area can be cleaned and disinfected in one go with the liquid-soaked wipe. The area performance depends, among other things, on the water holding capacity, the degree of impregnation and the area weight. The area performance is determined according to the test method described below.

The wiping cloth, especially the base material, as a surface wiping cloth, can have a tear strength in the longitudinal direction (machine direction, MD) of 25 N / 25 mm to 40 N / 25 mm and in the transverse direction (transverse to the machine direction, CD) of likewise 25 N / 25 mm to 40 N / 25 mm. For the floor wipe, the values are advantageously 50 N / 25 mm to 80 N / 25 mm (MD) and 70 N / 25 mm to 90 N / 25 mm (CD). The tear resistance is a measure of the stability of the wipe. A high tear resistance ensures that the wiper remains intact when wiping and cleaning. The tear strength is determined according to the test method described below.

The wiping cloth, in particular the base material, can have a compatibility with a disinfectant comprising a quaternary ammonium compound as an antimicrobial active ingredient of at least 80%, preferably of at least 85% and particularly preferably of at least 90%. Thus, after 24 hours of contact between the wipe, in particular the base material, the disinfectant still contains at least 80%, preferably at least 85% and particularly preferably at least 90% of an initial concentration of the antimicrobial active ingredient in the disinfectant. The compatibility can relate to the quaternary ammonium compound benzylalkyldimethylammonium chloride (BAC) and can be determined using the test method described below.

The regenerated cellulose fibers can contain a cationic starch for the positive charge. In particular, the starch is spun into a matrix of regenerated cellulose fibers so that it cannot become detached from the fibers. In other words, the positively charged regenerated cellulose fibers can be fibers comprising or consisting of a regenerated cellulose and a cationic starch, in particular a mixture of a regenerated cellulose and a cationic starch . The regenerated cellulose is preferably viscose. The cationic starch is preferably (3-chloro-2-hydroxypropyl) trimethylammonium chloride modified starch (systematic name: starch, 2-hydroxy-3- (trimethylammonio) propyl ether, chloride; CAS No. 56780-58-6 ). Such positively charged regenerated cellulose fibers are from U.S. 5,542,955 A (see Example 2) known and commercially available under the name DANUFIL ^® QR (Kelheim, Kelheim, Germany).

The fusible bonding fibers are preferably bicomponent fibers. These typically consist of a low-melting polymeric component and a higher-melting polymeric component, which preferably have a sheath-core arrangement. The sheath is formed by the low-melting component. The core is made up of the higher melting component educated. The terms “lower” and “higher” are to be understood with reference to the respective other polymeric component.

The fusion bonding fibers can consist of polyesters, polyolefins (such as, for example, polypropylene or polyethylene), polyamides, or mixtures thereof. The melt-bonding fibers preferably consist of polyesters, in particular polyethylene terephthalate (PET) and polyethylene terephthalate-co-isophthalate. The latter copolymer has a melting point of 110 ° C, which is significantly lower than that of PET (approx. 255 ° C). The jacket described above could therefore be formed from the copolymer. The core described above could then be formed by the PET. It is also conceivable that the fusion bonding fibers consist of polylactides (PLA).

The microfibers can have a fiber fineness of 1 dtex or less, in particular 0.9 dtex or less. As a rule, the finer the fibers, the better the cleaning performance of the wiper. The microfibers can consist of a polyester, a polyolefin (such as polypropylene or polyethylene) or a polyamide. The microfibers preferably consist of a polyester, in particular polyethylene terephthalate. In the case of microfibers, it is also conceivable that they consist of a polylactide.

The present invention also relates to a dispenser comprising one or more wipes according to the invention in all of the embodiments described in the present application and combinations thereof. The donor can be similar to, for example, the WO 2008/122961 A1 shown comprise a bag, in particular a flow pack packaging. However, the donor can also be similar to the EP 2 727 507 A2 shown include a container, in particular a bucket. The wipes are contained in the bag or the container. The dispenser can protect the wipes from contamination and provide an easy-to-use storage option for the wipes that can ideally be closed again after they have been opened for the first time. If the dispenser contains a disinfectant, in particular a QAV-containing disinfectant (for example by filling the bag or container of the dispenser with a disinfectant), the previously mentioned pre-moistened wipes can be obtained. Such a dispenser can then also be referred to as a wet wipe dispenser.

Furthermore, a cleaning device, in particular a mop, with a wipe according to the invention in all of the embodiments described in the present application and their combinations is claimed. The cleaning device comprises in particular a handle and a receptacle or holder for the wiping cloth. In order to be able to easily attach the wiper to the holder, it advantageously has two pockets. These can be formed by turning over the wipe or its base material at two opposite ends and sewing the two-ply area that protrudes at the edge. Accordingly, in a further embodiment of the invention, the floor wipe can have two pockets for attachment to a cleaning device, in particular a mop.

Another object of the present invention is a non-therapeutic use of a wipe according to the invention in accordance with the embodiments described in the present application and their combinations for cleaning and / or disinfecting objects and / or inanimate surfaces. It is used in particular in the medical field, especially in a hospital. The objects can accordingly be medical devices and furnishings which are usually found in patient rooms, treatment rooms and operating theaters of hospitals and which have to be wiped down and disinfected regularly (such as a hospital bed, for example). The surfaces can be part of the aforementioned devices and furnishings or floor surfaces.

1. i. Bereitstellen einer Fasermischung umfassend oder bestehend aus
   • - 35 Gew.-% bis 75 Gew.-% positiv geladenen Regenerat-Cellulosefasern,
   • - 15 Gew.-% bis 55 Gew.-% synthetischen Schmelzbindefasern,
   • - 5 Gew.-% bis 35 Gew.-% synthetischen Mikrofasern.
2. ii. Verfestigen der Fasermischung durch Vernadelung mittels Hochdruckwasserstrahlen (Spunlace-Verfahren) sowie durch partielles Schmelzen der Schmelzbindefasern, wobei ein flüssigkeitsspeicherndes Grundmaterial, insbesondere Vliesstoff-Grundmaterial, des Wischtuches gebildet wird.
3. iii. Optional Aufbringen einer abrasiven Beschichtung auf das Grundmaterial.
4. iv. Optional Vernähen des Grundmaterials, um zwei Taschen zur Befestigung an einer Reinigungsvorrichtung, insbesondere einem Wischmopp, auszubilden.

Finally, the invention relates to a method for producing a wipe for cleaning and disinfecting objects and / or surfaces. The procedure consists of the following steps:

1. i. Providing a fiber mixture comprising or consisting of
   • - 35 wt .-% to 75 wt .-% positively charged regenerated cellulose fibers,
   • - 15% by weight to 55% by weight synthetic fusion binding fibers,
   • - 5% by weight to 35% by weight synthetic microfibers.
2. ii. Solidification of the fiber mixture by needling by means of high pressure water jets (spunlace process) and by partial melting of the fusion binding fibers, a liquid-storing base material, in particular non-woven base material, of the wiper being formed.
3. iii. Optional application of an abrasive coating to the base material.
4. iv. Optionally, sewing of the base material in order to form two pockets for attachment to a cleaning device, in particular a mop.

To carry out the individual steps, conventional techniques known per se to those skilled in the field of textile production, in particular nonwoven production, such as, for example, the screen printing process or the gravure printing process (with reference to step iii.) Can be used. A synthetic thread (plastic thread) can be used as a suture material to sew the base material.

The proposed method can also be used to produce the preferred embodiments of the wipe (and combinations thereof) described in the present application. The wipes produced by this method thus optionally have the features of the preferred embodiments of the wipe according to the invention described above.

Examples and figures

The invention is to be explained and illustrated in more detail by way of example with the examples and figures described below.

Manufacture of wipes

Four different wipes were produced for cleaning and disinfecting floor surfaces in the medical field. For this purpose, the fiber blends indicated in Table 1 were first produced. Table 1: fiber blends Fiber material Fiber mixture 1 for wipe 1 [% by weight] Fiber mixture 2 for wipe 2 [% by weight] Fiber mixture 3 for wipe 3 [% by weight] Fiber mixture 4 for wipe 4 [% by weight] Cotton fibers 50 - - - positively charged viscose fibers - 50 55 60 Bicomponent fibers made from polyester 44 44 30th 20th Polyester microfiber 6th 6th 15th 20th

Accordingly, the fiber mixture 1 consisted of 50% by weight cotton fibers, 44% by weight bicomponent fibers and 6% by weight microfibers.

Fiber mixture 2 consisted of 50% by weight of positively charged viscose fibers, 44% by weight of bicomponent fibers and 6% by weight of microfibers.

Fiber mixture 3 consisted of 55% by weight of positively charged viscose fibers, 30% by weight of bicomponent fibers and 15% by weight of microfibers.

Fiber mixture 4 consisted of 60% by weight of positively charged viscose fibers, 20% by weight of bicomponent fibers and 20% by weight of microfibers.

The positively charged viscose fibers were the aforementioned Danufil® QR fibers from Kelheim Fibers (Kelheim, Germany).

The bicomponent fibers had a sheath-core arrangement, the sheath consisting of polyethylene terephthalate-co-isophthalate and the core consisting of polyethylene terephthalate. The microfibers had a fiber fineness of 0.9 dtex and consisted of polyethylene terephthalate.

The fiber blends were processed into layers of wadding fleece. These were solidified by high-pressure water-jet needling (spunlace process) and partial melting of the bicomponent fibers. With the exception of wipe 2, the solidified nonwoven layers were coated with an abrasive coating of ethylene vinyl acetate as in FIG 1 shown equipped. The solidified and optionally coated nonwoven layers formed the wipes, which, as already mentioned, were intended as floor wipes.

Wipe 1 is not a wipe according to the invention, since it does not contain any positively charged regenerated cellulose fibers. Wipe 1 serves only as a control or comparison sample. The wipes 2 to 4, on the other hand, are wipes according to the invention. The previously mentioned fleece layers of the wipes 2 to 4 represent the basic material according to the claims.

The sinking time, the water retention capacity, the maximum degree of impregnation, the area performance, the tear resistance and the compatibility with a QAV-containing disinfectant were tested for the wipes. The tests are explained in more detail below before the test results are discussed.

Test for sinking time and water holding capacity

1. i. Aus dem Wischtuch wird Probenmaterial mit einem Stanzmesser (10 x 10 cm) gestanzt.
2. ii. Ein leerer, zylindrischer Drahtkorb aus Kupferdraht (Durchmesser des Drahts: 0,4 mm; Höhe des Korbs: 8 cm; Durchmesser des Korbs: 5 cm; Maschenweite des Korbs: 1,5 - 2 cm) wird gewogen (m₁).
3. iii. Mindestens 5 g Probenmaterial werden in den Korb eingelegt. Der mit Probenmaterial gefüllte Korb wird erneut gewogen (m₂).
4. iv. Ein Becherglas (Durchmesser: 11 - 12 cm) wird mit demineralisiertem Wasser bis zu einer Höhe von etwa 10 cm befüllt.
5. v. Der Korb wird aus einer Höhe von 10 cm horizontal auf das Wasser fallen gelassen.
6. vi. Mit einer Stoppuhr wird die Zeit bis zum Absinken des Korbes unter die Wasseroberfläche gemessen. Dies ist die Absinkdauer.
7. vii. Unmittelbar nach dem Absinken des Korbes unter die Wasseroberfläche wird der Korb aus dem Wasser gehoben und zum Abtropfen 30 Sekunden lang in seiner Längsachse horizontal gehalten.
8. viii. Nach dem Abtropfen wird der Korb in ein Becherglas mit der Masse m₃ gegeben und ein letztes Mal gewogen (m₄).

The test method for determining the sinking time and the water holding capacity is as follows:

1. i. Sample material is punched from the wipe with a punch knife (10 x 10 cm).
2. ii. An empty, cylindrical wire basket made of copper wire (diameter of the wire: 0.4 mm; height of the basket: 8 cm; diameter of the basket: 5 cm; mesh size of the basket: 1.5-2 cm) is weighed (m ₁ ).
3. iii. At least 5 g of sample material are placed in the basket. The basket filled with sample material is weighed again (m ₂ ).
4. iv. A beaker (diameter: 11-12 cm) is filled with demineralized water up to a height of about 10 cm.
5. v. The basket is dropped horizontally onto the water from a height of 10 cm.
6. vi. A stopwatch is used to measure the time it takes for the basket to sink below the surface of the water. This is the sinking time.
7. vii. Immediately after the basket has dropped below the surface of the water, the basket is lifted out of the water and held horizontally in its longitudinal axis for 30 seconds to allow it to drip off.
8. viii. After draining, the basket is placed in a beaker with the mass m ₃ and weighed one last time (m ₄ ).

The water holding capacity in g / g is then calculated using the following formula: $$\text{Water holding capacity in}\frac{\text{G}}{\text{G}}=\frac{\text{m}\mathrm{4th}-\left(\text{<figure-callout id="2" label="m" filenames="DE102019129734A1\_0005.png" state="{{state}}">m</figure-callout>}2+\text{m}3\right)}{\text{m}2-\text{<figure-callout id="1" label="m" filenames="DE102019129734A1\_0005.png" state="{{state}}">m</figure-callout>}1}$$

For example, if 5 g of dry sample material (m ₂ - m ₁ ) takes up 30 g of water (m ₄ - (m ₂ + m ₃ )) in the above test, the result is a water holding capacity of 6 g / g.

The sinking time and the water holding capacity are given as the mean value from three determinations.

Test for the maximum degree of impregnation

1. i. Das trockene Wischtuch wird gewogen (m₁).
2. ii. Das Wischtuch wird in ein mit demineralisiertem Wasser gefüllten Behälter eingebracht. Dort verbleibt das Wischtuch für circa 10 Minuten, damit es bis zur Sättigung mit Wasser getränkt ist.
3. iii. Dann wird das Wischtuch aus dem Wasserbehälter entfernt und für 30 Sekunden abtropfen gelassen.
4. iv. Abschließend wird das feuchte Wischtuch gewogen (m₂).

The test method for determining the maximum degree of impregnation (maximum impregnation) is as follows:

1. i. The dry wipe is weighed (m ₁ ).
2. ii. The wipe is placed in a container filled with demineralized water. The wipe remains there for about 10 minutes so that it is saturated with water.
3. iii. Then the wipe is removed from the water tank and allowed to drain for 30 seconds.
4. iv. Finally, the damp wipe is weighed (m ₂ ).

The maximum degree of impregnation in% by weight is then calculated using the following formula: $$\text{maximum degree of impregnation in\%}=\left(\frac{\text{m}2-\text{m}1}{\text{m}1}\right)\times 100$$

For example, if in the above test a dry wipe with a weight of 5 g (m ₁ ) takes up 30 g of water (m ₂ - m ₁ ), the result is a maximum degree of soaking of 600% by weight.

The maximum degree of impregnation is given as the mean value from three determinations.

Area performance test

1. i. Das Wischtuch mit den Abmessungen 13 cm x 43 cm wird bis zur Sättigung mit demineralisiertem Wasser getränkt (wie bei der Prüfmethode für die Bestimmung des maximalen Tränkungsgrades) und danach für 30 Sekunden abtropfen gelassen.
2. ii. Das Wischtuch wird auf einen Mopp-Halter aufgespannt.
3. iii. Dann werden die folgenden Bodenflächen mit dem Wischmopp nacheinander gewischt:
   1. a. Kunststoffboden, circa 10,3 m² („Labor“)
   2. b. glanzpolierte Natursteinfliesen, circa 6,7 m² („Flur“)
   3. c. seidenmatte Steingutfliesen, circa 6,9 m² („Toilette“)
   Sobald der geschlossene Flüssigkeitsfilm dabei abreißt, gilt der Test als beendet. Die bis dahin gewischte Bodenfläche ist die Flächenleistung. Eine Flächenleistung von 24 m² bedeutet vorliegend, dass die Testbodenflächen a, b und c vollständig mit dem Wischtuch ohne ein Abreißen des Flüssigkeitsfilmes gewischt werden konnten. Bei ausreichender Restfeuchtigkeit des Wischtuches nach dem Wischen der Bodenflächen a bis c wird die Testbodenfläche b („Flur“) bis zum Abreißen des geschlossenen Flüssigkeitsfilmes weitergewischt und die gewischte Fläche nachfolgend bestimmt.

The test method for determining the area performance is defined by the following protocol:

1. i. The wiping cloth with the dimensions 13 cm x 43 cm is soaked with demineralized water until saturation (as in the test method for determining the maximum degree of soaking) and then allowed to drip off for 30 seconds.
2. ii. The wiping cloth is stretched onto a mop holder.
3. iii. Then the following floor surfaces are wiped one after the other with the mop:
   1. a. Plastic floor, approx. 10.3 m ² ("laboratory")
   2. b. glossy polished natural stone tiles, approx. 6.7 m ² ("corridor")
   3. c. semi-gloss stoneware tiles, approx. 6.9 m ² ("toilet")
   As soon as the closed liquid film breaks off, the test is considered to have ended. The floor area wiped up to that point is the area performance. In the present case, an area performance of 24 m ² means that the test floor areas a, b and c could be wiped completely with the wiper without tearing off the liquid film. If there is sufficient residual moisture in the wipe after wiping the floor areas a to c, the test floor area b (“corridor”) is wiped until the closed liquid film is torn off and the area wiped is then determined.

With this test method, particular care is taken to ensure that it is always carried out by the same person and in the same manner. The area performance is given as the mean value from at least three determinations.

Tear strength test

1. i. Aus dem Wischtuch wird eine Probe mit einer Breite von 25 mm und einer Länge von mindestens 30 mm, vorzugsweise von 50 mm, ausgestanzt. Dabei kann die Probe entweder in Längsrichtung (Maschinenrichtung, MD) oder Querrichtung (quer zur Maschinenrichtung, CD) gestanzt werden.
2. ii. Der Probenstreifen wird lotrecht und spannungsfrei in den Klemmen einer Zugprüfmaschine (gemäß DIN 51221) mit einer Einspannbreite von 25 mm und einer Einspannlänge (der Abstand zwischen den Klemmen) von 30 mm fixiert.
3. iii. Dann wird der Probenstreifen mit einer Geschwindigkeit von 100 mm/min in der Ebene seiner Erstreckung auseinanderbewegt. Dabei wird die in dieser Richtung wirkende Zugkraft gemessen. Unter der Reißfestigkeit wird diejenige maximale Kraft verstanden, bei der der Probenstreifen zerreißt. Die Angabe erfolgt in N/25mm. Wenn zuvor höhere Kraftspitzen im Zuge der Dehnung gemessen werden, so stellen diese die Reißfestigkeit im Sinne dieser Prüfung dar.

The test method for determining the tensile strength (maximum tensile force) is as follows:

1. i. A sample with a width of 25 mm and a length of at least 30 mm, preferably 50 mm, is punched out of the wipe. The sample can be punched either in the longitudinal direction (machine direction, MD) or transverse direction (transverse to the machine direction, CD).
2. ii. The sample strip is fixed vertically and tension-free in the clamps of a tensile testing machine (according to DIN 51221) with a clamping width of 25 mm and a clamping length (the distance between the clamps) of 30 mm.
3. iii. The sample strip is then moved apart in the plane of its extension at a speed of 100 mm / min. The tensile force acting in this direction is measured. The tear strength is understood to mean the maximum force at which the sample strip tears. The specification is made in N / 25mm. If higher force peaks are measured beforehand in the course of elongation, then these represent the tear strength in the sense of this test.

The tear strength is given as the mean value of five determinations, samples from different areas or over the entire width of the wipe being used.

Test for compatibility with a disinfectant containing QAV

1. i. Das Wischtuch wird in eine Desinfektionswanne gelegt, welche anschließend mit einem Desinfektionsmittel befüllt wird. Das Wischtuch wird dabei mit einem Drahtnetz aus nichtrostendem Stahl beschwert, so dass es stets von der Flüssigkeit bedeckt ist und nicht auf der Flüssigkeitsoberfläche schwimmt. Das Desinfektionsmittel enthält Benzylalkyldimethylammoniumchlorid (BAC) als quartäre Ammoniumverbindung in einer Konzentration von 0,1 %.
2. ii. Nach einer Einwirkzeit von 60 Sekunden werden sowohl das Drahtnetz als auch das Wischtuch aus der Desinfektionswanne entnommen. Das Wischtuch wird für 120 Sekunden abtropfen gelassen.
3. iii. Unmittelbar danach wird das feuchte Wischtuch in eine zweite, leere Desinfektionswanne gelegt und die Wanne mit einem Deckel verschlossen. Dort verbleibt das Wischtuch für einen Zeitraum von 24 Stunden.
4. iv. Nach Ablauf der 24-stündigen Einwirkzeit wird das Wischtuch aus der Wanne entnommen. Das Wischtuch wird ausgewrungen. Die dabei von dem Wischtuch freigegebene Flüssigkeit (im Folgenden als „Prüflösung“ bezeichnet) wird aufgefangen und für die nachfolgende Analyse verwendet.
5. v. Es wird eine HPLC-Analyse unter folgenden Bedingungen durchgeführt:
   • - HPLC-Gerät: Agilent Technologies 1200 Series
   • - stationäre Phase: Kieselgel RP-8 (Säule von Macherey-Nagel, Bezeichnung „150/4.6 Nucleodur 100-5 C8 ec“; erwärmt auf 40 °C)
   • - mobile Phase: 65 % bidestilliertes Wasser und 35 % Acetonitril (Wasser und Acetonitril jeweils mit 0,1 % Phosphorsäure versetzt)
   • - Druck: 130 bar
   • - Volumenstrom: 1,5 ml/min
   • - Probeninjektion: 0,02 ml/Probe
   • - vermessenes Probenmaterial:
   • - Probe 1: Probe mit BAC in bekannter Menge als externer Standard
   • - Probe 2: Probe des verwendeten Desinfektionsmittels ohne Kontakt mit dem Wischtuch
   • - Probe 3: Prüflösung

The test method for determining the compatibility with a QAV-containing disinfectant is based on DIN 53923: 1978-01 as follows:

1. i. The wipe is placed in a disinfection tub, which is then filled with a disinfectant. The wiping cloth is weighted down with a wire mesh made of stainless steel so that it is always covered by the liquid and does not float on the surface of the liquid. The disinfectant contains benzylalkyldimethylammonium chloride (BAC) as a quaternary ammonium compound in a concentration of 0.1%.
2. ii. After an exposure time of 60 seconds, both the wire mesh and the wipe are removed from the disinfection tub. The wipe is allowed to drain for 120 seconds.
3. iii. Immediately afterwards, the damp wipe is placed in a second, empty disinfection tub and the tub is closed with a lid. The wipe remains there for a period of 24 hours.
4. iv. After the 24-hour exposure time has elapsed, the wipe is removed from the tub. The wipe is wrung out. The liquid released by the wipe (hereinafter referred to as “test solution”) is collected and used for the subsequent analysis.
5. v. An HPLC analysis is carried out under the following conditions:
   • - HPLC device: Agilent Technologies 1200 Series
   • - stationary phase: silica gel RP-8 (column from Macherey-Nagel, designation "150 / 4.6 Nucleodur 100-5 C8 ec"; heated to 40 ° C)
   • - mobile phase: 65% double-distilled water and 35% acetonitrile (water and acetonitrile each mixed with 0.1% phosphoric acid)
   • - Pressure: 130 bar
   • - Volume flow: 1.5 ml / min
   • - Sample injection: 0.02 ml / sample
   • - measured sample material:
   • - Sample 1: Sample with BAC in a known amount as an external standard
   • - Sample 2: Sample of the disinfectant used without contact with the wipe
   • - Sample 3: test solution

With the results of the HPLC analysis, the BAC concentration of the disinfectant without contact with the wipe (BAC concentration of sample 2) and the BAC concentration of the disinfectant after 24 hours of contact with the wipe (BAC concentration of sample 3 and the test solution) can be determined exactly. The QAV compatibility is then determined using the following formula: $$\text{QAV compatibility in\%}=\left(\frac{\text{<figure-callout id="3" label="BAC concentration sample" filenames="DE102019129734A1\_0005.png" state="{{state}}">BAC concentration sample</figure-callout>}3}{\text{BAC concentration sample 2}}\right)\times 100$$

The values for QAV compatibility thus indicate what percentage of the quaternary ammonium compound BAC is still contained in the disinfectant after 24 hours of contact with the wipe. The values therefore relate to the free QAV quantity of the disinfectant that is still available for disinfection in relation to its initial concentration.

The QAV compatibility is given as the mean value from two determinations.

Test results

Table 2 summarizes the results of the tests. In addition, the thicknesses and the basis weights are listed in Table 2. The values for the area performance refer to the wiping cloths with the abrasive coating (if available). Otherwise, the values refer to the fleece layers (the base material) of the wipes without an abrasive coating. Table 2: Test Results parameter Wipe 1 Wipe 2 Wipe 3 Wipe 4 (50% cotton, 44% bicomponent fibers, 6% microfibers) (50% positively charged viscose fibers, 44% bicomponent fibers, 6% microfibers) (55% positively charged viscose fibers, 30% bicomponent fibers, 15% microfibers) (60% positively charged viscose fibers, 20% bicomponent fibers, 20% microfibers) Thickness [mm] 2.3 2.9 3 2.9 Weight per unit area [g / m ² ] 256 250 272 269 Sinking time [sec] 10.9 3.4 2.3 2.8 Water holding capacity [g / g] 9.6 10.6 10.2 13.4 max. degree of impregnation [% by weight] 851 829 784 799 Area performance [m ² ] 17th 24 24 19th Tear strength [N / 25 mm] 68 (MD) 77 (CD) 64 (MD) 103 (CD) 52 (MD) 79 (CD) 25 (MD) 53 (CD) QAV compatibility [%] 69 89.6 89.0 89.7

As can be seen from Table 2, the wipes 2 to 4 according to the invention have a significantly shorter sinking time than the control wipe 1. That is to say, the wipes according to the invention can absorb liquid much more quickly than the cotton-containing control wipe 1. As a result, the cleaning or disinfection process can be accelerated.

The water holding capacity of the wipes 1 to 3 is roughly the same, so that they can absorb roughly the same amount of liquid. Wipe 4 has a higher water retention capacity than the other three wipes, which can be attributed to the high proportion of absorbent fiber material.

The area performance of the wipes 2 to 4 according to the invention is greater than that of the control wipe 1. In particular, the wipes 2 and 3 show a particularly high area performance. With the wipes according to the invention, a larger area can thus be cleaned and disinfected in one go.

The QAC compatibility is significantly better with wipes 2 to 4 according to the invention than with control wipe 1. Thus, after incubation of wipes 2 to 4, about 90% of the quaternary ammonium compound is still in solution after an incubation of 24 hours, whereas with control wipe 1 only 69% of the quaternary ammonium compound is still present in the solution. This means that the wipes according to the invention bind only about 10% of the quaternary ammonium compound within 24 hours, but the control wipe more than 30% in the same period of time. This difference is considered to be the essential advantage of the wipes according to the invention compared to the cotton-containing control wipe, because it is this that enables reliable disinfection with a QAV-containing disinfectant in the first place. The advantageous behavior towards QAV-containing disinfectants works in a synergistic way with the other advantageous properties of the wipe, as described above (rapid liquid absorption and storage capacity, good area performance).

Abrasive coating

1 shows one side of a wipe according to the invention in a preferred embodiment. The wipe is intended as a floor wipe. There is a ruler on the wiping cloth to make the proportions clear. Can be seen in 1 especially the abrasive coating of the wipe. This consists of a material usually used as a hotmelt adhesive, namely ethylene vinyl acetate (EVA). The abrasive coating is designed in the form of strips, the strips being patterned in the form of a grid. The abrasive coating can further improve the cleaning performance of the wipe, which can be particularly advantageous if stubborn dirt is to be removed.

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 5542955 A [0036]
• WO 2008/122961 A1 [0040]
• EP 2727507 A2 [0040]

Non-patent literature cited

• DIN 53505: 2000-08 [0017]
• ISO 868: 2003 (E) [0017]
• DIN EN ISO 9073-2: 1995 [0027]

Claims (38)

Comprising a wipe for cleaning and disinfecting objects and / or surfaces with a liquid-storing base material in the form of a fiber mixture - 35 wt .-% to 75 wt .-% positively charged regenerated cellulose fibers, - 15% by weight to 55% by weight synthetic fusion binding fibers, - 5% by weight to 35% by weight synthetic microfibers. Wipe after Claim 1 , wherein the wipe is provided as a disposable item. Wipe after Claim 1 or 2 , the wipe being provided by the manufacturer pre-moistened with a disinfectant, in particular with a disinfectant comprising a quaternary ammonium compound as an antimicrobial active ingredient. Wipe according to one of the preceding claims, wherein the wipe has an abrasive coating, preferably a strip-shaped abrasive coating with, in particular, a grid-shaped pattern. Wipe after Claim 4 , wherein a height of the abrasive coating is 0.1 mm to 0.8 mm, preferably 0.2 mm to 0.4 mm. Wipe after Claim 4 or 5 wherein the abrasive coating is polyethylene, polypropylene, an amorphous polyalphaolefin, ethylene vinyl acetate, an ethylene vinyl acetate copolymer, a polyamide, an olefin-based thermoplastic elastomer, a crosslinked olefin-based thermoplastic elastomer, a thermoplastic copolyester, a urethane-based thermoplastic elastomer, a thermoplastic copolyamide, a thermoplastic styrene block copolymer, a styrene-ethylene-butadiene-styrene polymer, styrene-butadiene-styrene, or styrene-ethylene-propylene-styrene. Wipe down one of the Claims 4 to 6th , the material of the abrasive coating having a Shore A hardness of 50 to 100, in particular 70 to 100, determined in accordance with DIN 53505: 2000-08 and ISO 868: 2003 (E). The wipe of any preceding claim, wherein the wipe - consists of the base material, the abrasive coating, optionally a liquid disinfectant and optionally a suture material, or - consists of the base material, optionally a liquid disinfectant and optionally a suture material. Wipe according to one of the preceding claims, wherein the base material does not contain any fibers made from a naturally occurring polymer and, with the exception of the positively charged regenerated cellulose fibers, also does not contain any fibers based on a naturally occurring polymer. A wipe according to any one of the preceding claims, wherein the base material consists of the regenerated cellulose fibers, the fusion bonding fibers and the microfibers. A wipe according to any one of the preceding claims, wherein the base material - 40% by weight to 65% by weight of the positively charged regenerated cellulose fibers, - 15 wt .-% to 50 wt .-% of the synthetic fusion bonding fibers and Comprises 5% to 25% by weight of the synthetic microfibers. Wipe down one of the Claims 1 to 10 , the base material - 45% by weight to 60% by weight of the positively charged regenerated cellulose fibers, - 15% by weight to 35% by weight of the synthetic fusion binding fibers and - 10% by weight to 25% by weight % of synthetic microfibers. Wipe down one of the Claims 1 to 10 , wherein the base material comprises - approx. 50% by weight of the positively charged regenerated cellulose fibers, - approx. 35% by weight of the synthetic fusion bonding fibers and - approx. 15% by weight of the synthetic microfibers. Wiper according to one of the preceding claims, wherein the base material is designed as a nonwoven fabric. Wipe according to one of the preceding claims, wherein the base material is solidified by needling by means of high pressure water jets and by partial melting of the fusion bonding fibers. Wipe according to one of the preceding claims, wherein the wipe, in particular the base material, is essentially rectangular in shape and has a length of 10 cm to 60 cm and a width of 10 cm to 60 cm. Wipe according to one of the preceding claims, wherein the wipe, in particular the base material, has a thickness of 0.5 mm to 5 mm. Wipe according to one of the preceding claims, wherein the wipe, in particular the base material, has a weight per unit area of 40 g / m ² to 400 g / m ² . Wipe according to one of the preceding claims, wherein the wipe, in particular the base material, has a density ^{of 0.077 g / cm 3} to 0.104 g / cm ^3. Wipe according to one of the preceding claims, wherein the wipe, in particular the base material, has a sinking time of a maximum of 10 seconds, preferably a maximum of 8 seconds and even more preferably a maximum of 5 seconds. Wipe according to one of the preceding claims, wherein the wipe, in particular the base material, has a water holding capacity of at least 6 g / g, preferably of at least 8 g / g and even more preferably of at least 10 g / g. Wipe according to one of the preceding claims, wherein the wipe, in particular the base material, has a maximum degree of impregnation of at least 600% by weight, preferably of at least 700% by weight and even more preferably of at least 800% by weight. Wipe according to one of the preceding claims, wherein the wipe, in particular the base material, has an area performance of at least 16 m ² , preferably of at least 18 m ² and even more preferably of at least 20 m ² . Wipe according to one of the preceding claims, wherein the wipe, in particular the base material, - has a tear strength in the longitudinal direction (MD) of 25 N / 25 mm to 40 N / 25 mm and a tear strength in the transverse direction (CD) of 25 N / 25 mm to 40 N / 25 mm, or - has a tear strength in the longitudinal direction (MD) of 50 N / 25 mm to 80 N / 25 mm and a tear strength in the transverse direction (CD) of 70 N / 25 mm to 90 N / 25 mm. Wipe according to one of the preceding claims, wherein the wipe, in particular the base material, has a compatibility with a disinfectant comprising a quaternary ammonium compound as an antimicrobial active ingredient of at least 80%, preferably of at least 85% and particularly preferably of at least 90%, so that after a 24-hour contact of the wipe, in particular the base material, with the disinfectant still at least 80%, preferably still at least 85% and particularly preferably still at least 90% of a starting concentration of the antimicrobial active ingredient in the disinfectant. Wiper according to one of the preceding claims, wherein the regenerated cellulose fibers contain a cationic starch for the positive charge, the starch in particular being spun into a matrix of the regenerated cellulose fibers. Wiper according to one of the preceding claims, wherein the positively charged regenerated cellulose fibers are positively charged viscose fibers. A wipe according to any one of the preceding claims, wherein the fusible bonding fibers are bicomponent fibers. Wipe according to one of the preceding claims, wherein the melt-bonding fibers consist of polyesters, in particular polyethylene terephthalate and polyethylene terephthalate-co-isophthalate, polyolefins, polyamides or mixtures thereof. Wiper according to one of the preceding claims, wherein the microfibers have a fiber fineness of 1 dtex or less, in particular 0.9 dtex or less. Wiper according to one of the preceding claims, wherein the microfibers consist of a polyester, in particular polyethylene terephthalate, a polyolefin or a polyamide. A dispenser comprising one or more wipes according to any one of the preceding claims. Donor after Claim 32 wherein the dispenser comprises a pouch or container in which the wipes are contained. Donor after Claim 32 or 33 , wherein the dispenser comprises a disinfectant, in particular a disinfectant comprising a quaternary ammonium compound as an antimicrobial agent. Cleaning device, in particular a mop, with a wipe according to one of the Claims 1 to 31 . Using a wipe after one of the Claims 1 to 31 for cleaning and / or disinfecting objects and / or surfaces, in particular medical devices and furnishings or floor areas in the medical field. A method for producing a wipe for cleaning and disinfecting objects and / or surfaces, comprising the following steps: i. Providing a fiber mixture comprising or consisting of - 35 wt .-% to 75 wt .-% positively charged regenerated cellulose fibers, - 15% by weight to 55% by weight synthetic fusion binding fibers, - 5% by weight to 35% by weight synthetic microfibers, ii. Solidification of the fiber mixture by needling with high pressure water jets and by partial melting of the fusion binding fibers, whereby a liquid-storing base material of the wiper is formed, iii. optional application of an abrasive coating to the base material, iv. optional sewing of the base material in order to form two pockets for attachment to a cleaning device, in particular a mop. Procedure according to Claim 37 , taking a wipe after one of the Claims 1 to 31 will be produced.

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