WO2016115644A1 - Multifunctional wiping cloth - Google Patents

Abstract

The invention relates to a wiping cloth (10) comprising a first layer (1, 4), a second layer (2), and a third layer (3, 5). The first layer (1, 4) has a common surface with the second layer (2) such that the first layer (1) is adjacent to the second layer. A third layer is arranged on the opposite side of the second layer (2) such that the first layer (1) is separated from the third layer by the second layer (2), and the first layer (1) or the third layer contains an absorbent material. The first layer (1) or the third layer (3) has a temperature resistance of up to 550 °C.

Description

 Multifunctional mop

The invention relates to a wiper cloth, which is hot for contact

Surfaces can be used in particular for cleaning hot surfaces. A wiper cloth made of a heat-resistant nonwoven fabric is known, for example, from DE102006033934A1. This wiper cloth consists of cellulosic fibers, such as viscose, modal, micromodal, tencel or natural fibers with a titer of less than or equal to 1.7 dtex as base material. To this base material, a proportion of 1-10% of a modified lyocell fiber is added, which is a polymer modified with acidic groups, for example, a cation ion exchanger or

 Polyacrylmethacrylat and is loaded with 20-120 g / kg of silver or zinc. These bound to the lyocell fiber metal ions are used to achieve a

Added disinfection effect, which is maintained after repeated washing and at temperatures up to 130 ° C. A disadvantage of this wiper is the fact that it provides no heat insulation in the wet state, because the liquid soaks through the wiper. In this case, the liquid forms a thermal bridge, so that the wiper tab assumes the temperature of the evaporating liquid or of the surface within a very short time if the temperature of the surface is lower than the temperature

Evaporation temperature of the liquid is. Therefore, such is suitable

 Wiping cloth not for cleaning, for example, a hot stove. Due to the heat conduction, the mop takes the in no time the

Evaporation temperature of the liquid, i. For water containing liquids around 100 ° C, so that during wiping, which are in the range of a few seconds, already the risk of burns of the skin is given.

The use of a multi-layered wiper tab is known, for example, from EP970036 A2. The mop is absorbent for both water and oily substances, therefore, the heat resistance for temperatures above Be guaranteed 200 ° C to 250 ° C. All layers should therefore have maximum capacity for the corresponding liquid to be wiped away from the surface to be cleaned for cleaning. Therefore, this wiper is completely permeable to the liquid. All layers therefore consist of materials that are not liquid-tight, but on the contrary favor the passage of liquid. In particular, the central layer is made of a nonwoven fabric, for example the polyester nonwoven fabric Reemay®. Such a nonwoven fabric is permeable to liquids because the entire volume of the wiper tab is to be used to absorb the liquid. This

Wiping cloth is used for industrial cleaning applications, so it is unproblematic if it reaches a temperature of up to 250 ° C Such a cloth is therefore not suitable for manual use.

A cleaning cloth having a three-layer structure is known from DE 282 80 55, in which a foam layer receiving the cleaning agent is separated from a sucking nonwoven fabric layer by a water-impermeable intermediate layer. As a water-impermeable intermediate layer, a polyurethane film is used. The intermediate layer is intended to prevent detergent from coming into contact with the hands. Through the use of two differently designed layers, a multifunctional cleaning cloth is obtained, by means of which various cleaning operations can be carried out successively. However, the foam layer or the polyurethane film does not have sufficient temperature resistance to be used for an application for cleaning hot surfaces such as hotplates. An application of polyurethane for temperature ranges above approx. 100 ° C is not recommended.

The problem of burn injuries caused by cleaning sponges for disinfecting a heat treatment, for example in a microwave oven, is known. To germs in such humid

Cleaning sponges still kill by heat, without risking burn injuries, so far a cleaning device was required for this, as described for example in EP 2 612 713 AI. The Cleaning device forms a container for the sponge cloth. Another connected to a sponge housing is known from US20070267042 A2. The housing or the cleaning device does not heat up in the microwave unlike the damp sponge or sponge, so that the user

Sponge or the sponge cloth together with the housing or the

Heating device in the microwave oven can heat and then the

Microwave oven can safely remove. However, such a thing would be

Cleaning device unsuitable to clean a hot surface on which the contamination can be removed only by applying frictional forces. Such contaminants can arise, for example, on hotplates when food comes into direct contact with the hot stove during cooking and burn there. These contaminants can be removed by the application of moisture which prevents solidification of the food and / or by a frictional effect. It is advantageous if the shortest possible time elapses between the first contact of the food with the stove and the cleaning process, so that a permanent burning of

Combustion residues of a food on the stove can be avoided.

The object of the invention is therefore to provide a wiping cloth, by means of which a cleaning surface in a hot state can be cleaned wet using friction forces, without the risk of injuries caused by burns during manual use.

The object is achieved by a wiper tab comprising a first layer, a second layer and a third layer. The first layer shares a surface with the second layer so that the first layer is adjacent to the second layer. A third layer is disposed on the opposite side of the second layer so that the first layer is separated from the third layer by the second layer. The first layer or the third layer contain an absorbent material. This absorbent material is suitable for absorbing liquid. For this purpose, the absorbent material in particular a plurality of pores or cavities, which can be filled with the liquid aufzusaugenden are. Alternatively or in addition thereto, the absorbent material can be hygroscopic, that is to say in particular to bind water-containing liquids. Preferably, the liquid is stored in the pores or cavities, so that upon application of a compressive force on the absorbent material, the pores or cavities closed and the liquid therein can be discharged back to the environment. Alternatively or in addition to this, the liquid can be removed from each of the absorbent layers by drying, optionally with the action of heat.

The first layer or the third layer have a temperature resistance of up to 550 ° C, so that contaminated hot surfaces can be cleaned. In particular, the temperature resistance may be 150 ° C to 550 ° C inclusive, more preferably 250 ° C to 550 ° C inclusive. The second layer is impermeable to liquids or gases. In this way it can be avoided that heat is transferred to the hand of the user via the liquid absorbed by the wiper tab. For a limited period of time, the temperature resistance may be in the range of 300 to 550 ° C. The limited

Period can be a maximum of 10 minutes. For a temperature resistance of over 400 ° C, the limited time can be a maximum of three minutes. For one

Temperature resistance of 500 to 550 ° C, the limited period can be a maximum of 1 minute.

According to one exemplary embodiment, the second layer is flexible, whereby it should be understood flexibly that the second layer is malleable, in particular bendable under the action of a force which is less than 10 N.

In one embodiment, the second layer is impermeable to water.

This can avoid that liquids or gases with high

 Thermal conductivity, in particular water forming a thermal bridge from the first to the third layer. In this way, the second layer acts as a thermal insulator.

The second layer may contain a silicone. In particular, the second layer may contain a silicone content of greater than 30%, preferably greater than 50% or more preferably made of silicone. Silicone is thermally stable up to over 100 ° C. This thermal resistance is sufficient if the liquid absorbed by the first or third layer is hydrous or consists of water. If it is moistened wiping cloths before cleaning the hot surface, that is impregnated with water, the water absorbed in the wiper cloth is heated during the cleaning process and evaporated at atmospheric pressure at 100 ° C. Due to the large specific heat capacity of the water this is a not inconsiderable energy input required, with the result that the cleaning process is usually completed before the water evaporates. Therefore, the second layer must be temperature resistant at temperatures greater than 100 ° C.

If a surface containing an oily substance is to be cleaned, the boiling point of the oily substance may be higher than the boiling point of water.

Polysiloxanes have service temperatures of up to 180 ° C, therefore, wiper cloths with second layers containing silicones, ie polysiloxanes, can also be used for the oil-containing substances commonly used in households, such as edible oils. In addition, the wiper cloth can be soaked with a surfactant-containing water before cleaning, so that the oily substance is absorbed in the water and therefore similar

Conditions are found in terms of temperature resistance, as in the cleaning of contaminated surfaces by means of aqueous solution or in the removal of aqueous contaminants from hot surfaces.

The second layer thus prevents heat conduction via the liquid taken up or discharged by the first layer or the third layer for moistening the wiper tab or for drying a moist base.

The first layer or third layer contains a plurality of absorbent ones

Materials. The absorbent materials allow the absorption and the

Retention of liquid.

The first layer or the third layer can in each case be constructed from a plurality of sub-layers according to one exemplary embodiment. At least one of the first, second or third layers may have a different layer composition. For example, the first or third layer may contain a partial layer of cotton, wool or a synthetic fiber. The first or third layer may contain a sublayer of aramid, for example Kevlar®, Nomex® or polytetrafluoroethylene, for example Teflon® or glass. The first layer or the third layer may contain at least one sub-layer from the group of woven, knitted fabrics, scrims, sponges, felts or random webs. Each of these partial layers can be designed to absorb moisture and to hold it at least temporarily in the layer. The first layer or the third layer may have a rough outer surface. This rough layer can

For example, by the fibers of the fabric, knitted fabric, Geleges, felt or

Wirrvlieses be formed. A sponge can be combined with a fiber to obtain a rough layer. The fibers can be next to the thermal

Resistance to have a resistance to abrasion. As a result, the surface to be cleaned can be cleaned or polished by a scrubbing effect. The scrubbing effect is caused by the fibers coming in contact with the surface when the wiper tab is moved over the surface to be cleaned, if necessary, by applying a contact pressure.

The first layer or third layer or a sub-layer thereof may include

Polyamide, in particular an aromatic polyamide, for example, an aramid fiber included. The preparation of such aromatic polyamides is described for example in US Pat. No. 3,063,966 or US Pat. No. 3,671,542. The aramid fibers may, for example, from the group of polymers consisting of P-phenylene terephthalamide, phenylene isophthalmide, and mixtures of P-phenylene terephthalamide and M-phenylene isophthalmid or poly-p-benzamide.

The first layer or third layer or a sub-layer thereof may

For example, contain polytetrafluoroethylene, in particular a fiber, as described for example in US2006182962 AI or a porous material, as described for example in WO9736953 AI. Alternatively, the first or third layer may include a composite material, such as one Fiber composite material containing polytetrafluoroethylene and a nylon or a polyester or a polyurethane, as disclosed for example in WO 98 58796 AI.

According to one embodiment, the wiper tab consists of a first layer, which forms an outer sub-layer, made of a material with a

Temperature resistance up to 550 ° C, from a subsequent to this

 Intermediate layer of cotton, from a second layer of silicone adjoining the intermediate layer of cotton, from an intermediate layer of cotton adjoining the second layer of silicone. The second layer of silicone is bounded by two intermediate layers of cotton such that the second layer of silicone with the two intermediate layers of cotton has a sandwich-like structure. A third layer is applied to the cotton intermediate layer forming an outer sub-layer of a material having a temperature resistance up to 550 ° C, the first layer and the third layer bounding the second layer and the two intermediate layers to form a sandwiched construction form, wherein the core of the sandwich consists of the second layer.

The silicone layer is thus according to this embodiment

sandwiched between two layers of cotton. The layer of silicone and the sub-layers of cotton are sandwiched between two sub-layers of a material with a temperature resistance up to

including 550 ° C. In particular, the temperature resistance may be 150 ° C to 550 ° C inclusive, more preferably 250 ° C to 550 ° C inclusive.

The mop is also suitable for its flexibility, a hot

Item, such as a pan handle or a handle in the manner of a

 To include potholders. The wiping cloth can thus take over the function of a cleaning cloth as well as the function of a pot cloth.

Due to the temperature resistance of each of the layers, the mop is washable in every commercially available washing machine at temperatures of up to 95 ° C. The mop is thus intended for multiple use. The wiper tabs according to the invention will be illustrated below with reference to some embodiments. Show it

1 shows a first view of the wiper tab according to a first exemplary embodiment in an exploded view, FIG. 2 shows a section through a wiper tab after a second

Embodiment,

3 shows a section through a wiper tab according to the second embodiment in a deformed state,

4 shows a section through a wiper tab according to the first embodiment in a deformed state,

Fig. 5 is a section through a wiper tab after a third

Embodiment,

Fig. 6 is a section through a wiper tab after a fourth

Embodiment. Fig. 1 shows a first view of the wiper tab 10 after a first

 Embodiment in an exploded view. The wiping cloth according to FIG. 1 is made up of five layers, which subsequently form three groups of layers

be summarized. The wiper tab 10 includes a first layer 1, 4 of an absorbent material, a second layer 2 and a third layer 3, 5 of an absorbent material. The first layer 1, 4 has a surface in common with the second layer 2, so that the first layer 1, 4 is arranged adjacent to the second layer. A third layer is disposed on the opposite side of the second layer 2 so that the first layer 1,4 is separated from the third layer 3,5 by the second layer 2. The first layer 1 or the third layer 3 has a temperature resistance up to 550 ° C. According to this embodiment, the first layer consists of two partial layers, an outer layer 1, which has a temperature resistance up to 550 ° C and an intermediate layer 4, which consists of cotton or contains a cotton content. The outer layer 1 and the intermediate layer 4 can be sewn or glued together or be sintered. The third layer consists of two partial layers, an outer layer 3, which has a temperature resistance up to 550 ° C and an intermediate layer 5, which consists of cotton or contains a cotton content. The outer layer 3 and the intermediate layer 5 can be sewn together. The second layer forming the middle layer is flexible. That is, this layer is changeable in shape under the action of a force which may be less than 10 N. As a result of this change in shape, the wiper cloth can take the form of an arbitrarily designed substrate to be cleaned. That is, the wiper is suitable for its flexibility to arbitrarily shaped surfaces to clean.

The first layer 1,4 and the second layer 3, 5 are according to this

Embodiment identically constructed, whereby the wiping cloth can be used on both sides. The user does not have to pay attention to which side of the

Wischlappens he brings into contact with the hot surface that he wants to clean. This is particularly important if the user has little reaction time, for example, a burning on in one hot

Stove plate to prevent spilled food.

FIG. 2 shows a wiper tab according to a second exemplary embodiment, which also consists of a first layer 1, a second layer 2 and a third layer 3. The wiper tab differs from the wiper tab according to FIG. 1 such that the first layer 1 and the third layer 3 consist of a single partial layer. According to this embodiment was on the

Intermediate layers, 4.5 omitted.

Fig. 3 shows the wiper cloth according to Fig. 2 in a deformed state. All layers of the wiper tab can be deformed to any desired geometric shape without appreciable force exerted by the user, or adapted to arbitrarily designed surfaces to be cleaned. Fig. 4 shows the

Wiping cloth according to FIG. 1 in the deformed state.

5 shows a variant of a wiper tab according to which the number of layers on each side of the second layer 2 is different. For example the first layer 1 consists of a single partial layer, while the third layer 3 contains a partial layer 5.

Fig. 6 shows a variant of a wiper tab, according to which the number of

Layers on each side of the second layer 2 is different. For example, the first layer 1 contains a partial layer 4, while the third layer 3 consists of a single partial layer.

Example 1:

A wiper cloth consists of a first layer of polytetrafluoroethylene, which forms an outer sub-layer, from an adjoining thereto intermediate layer of cotton, which is formed as a sub-layer of the first layer, from a subsequent to the intermediate layer of cotton second layer of silicone, from a to the second layer of silicone subsequent intermediate layer of cotton. The second layer of silicone is bounded by two intermediate layers of cotton such that the second layer of silicone with the two intermediate layers of cotton forms a sandwich-like structure. The intermediate layer of cotton is followed by a third layer, which forms an outer sub-layer consisting of a polytetrafluoroethylene. The first layer and the third layer define the second layer such that they have a

form a sandwich-like structure. The first layer has an average layer thickness of 1 mm to 15 mm, the second layer has an average layer thickness of 0.1 to 5 mm and the third layer has an average layer thickness of 1 mm to 15 mm, if none of the layers by application of Pressure in a compressed

Condition exists. Example 2:

A wiping cloth consists of a first layer of aramid fiber, which forms an outer sub-layer, from an adjoining thereto intermediate layer of cotton, which is formed as a sub-layer of the first layer, from a subsequent to the intermediate layer of cotton second layer of silicone a subsequent to the second layer of silicone intermediate layer

Cotton. The second layer of silicone is bounded by two intermediate layers of cotton such that the second layer of silicone with the two intermediate layers of cotton forms a sandwich-like structure. The intermediate layer of cotton is followed by a third layer, which forms an outer sub-layer consisting of an aramid fiber. The first layer and the third layer define the second layer so as to form a sandwich structure. The first layer has an average layer thickness of 1 mm to 15 mm, the second layer has an average layer thickness of 0.1 to 5 mm and the third layer has an average layer thickness of 1 mm to 15 mm, if none of the layers by application of Pressure in a compressed state is present.

Claims

claims First wiper cloth (10), comprising a first layer (1, 4), a second layer (2) and a third layer (3, 5), wherein the first layer (1, 4) with the second layer (2) a Surface has in common, so the first layer (1) is disposed adjacent to the second layer, wherein a third layer is disposed on the opposite side of the second layer (2), so that the first layer (1) from the third layer through the second layer (2) is separated, wherein the first layer (1) or the third layer contains an absorbent material, wherein the first layer (1) or the third layer (3) has a temperature resistance up to 550 ° C, characterized in that the second Layer (2) is impermeable to liquids or gases. Second wiper tabs (10) according to claim 1, wherein the second layer (2) is flexible. 3. wiper cloths (10) according to any one of claims 1 or 2, wherein the second  Layer (2) is impermeable to water. 4. Wiping cloths (10) according to one of the preceding claims, wherein the  second layer (2) is a thermal insulator. 5. Wiping cloths (10) according to one of the preceding claims, wherein the  second layer (2) contains a silicone. 6. wiping cloths (10) according to any one of the preceding claims, wherein the first layer or third layer (1,3,4,5) a plurality of absorbent  Contains materials and / or the first layer or the third layer (1,3,4,5) is composed of a plurality of sub-layers. 7. wiper cloths (10) according to any one of the preceding claims, wherein at least one of the first, second or third layers (1, 2, 3, 4, 5) has a different layer composition. 8. Wiping cloths (10) according to any one of the preceding claims, wherein the first layer or the third layer (1,3,4,5) contains cotton or a synthetic fiber. 9. Wiping cloth (10) according to any one of the preceding claims, wherein the first layer or the third layer (1,3,4,5) at least one of  Designs from the group of tissues, knits, scrims, sponges, felts or random webs contains. 10. wiping cloth (10) according to any one of the preceding claims, wherein the first layer or the third layer (1,3) has a rough outer surface. 11, wiping cloths (10) according to any one of the preceding claims, wherein the first layer or the third layer (1,3) or a sub-layer thereof contain a polyamide. 12, wiping cloths (10) according to any one of the preceding claims, wherein the first layer or the third layer (1,3) or a sub-layer thereof contain a polytetrafluoroethylene. 13. Wiping cloths (10) according to any one of the preceding claims, wherein the first layer or the third layer (1,3) contain a composite material. 14. Wiping cloths (10) according to one of the preceding claims, wherein the  second layer (2) at temperatures of more than 100 ° C.  is temperature resistant. 15. Wiping cloths (10) according to one of the preceding claims, wherein the mop cloth is intended for multiple use. 16. Wiping cloths (10) according to one of the preceding claims, wherein the mop cloths at temperatures of up to 95 ° C is washable. 17. Use of a wiper tab (10) according to one of the preceding  Claims as a cleaning cloth or as a pot holder.