DE102018215090A1 - Active cleaner - Google Patents

Abstract

The present application relates to the use of a spray can with two separate delivery bags for spraying two separately presented solutions which are mixed during spraying and thereby form a detergent based on active oxygen.

Description

The present application relates to the use of a spray can with two separate delivery bags for spraying two separately presented solutions which are mixed during spraying and thereby form a detergent based on active oxygen.

Active cleaners with a bleaching and / or disinfecting effect often contain sodium hypochlorite (chlorine bleach). However, the presence of chlorine in such cleaning agents is increasingly undesirable in view of health regulations and environmental concerns.

It was therefore an object of the present invention to provide a cleaning agent with a bleaching and / or disinfecting effect in which the use of hypochlorite or other questionable bleaching agents can be dispensed with.

1. (i) einen Sprühvorrichtungsbehälter,
2. (ii) mindestens zwei Sprühventile,
3. (iii) mindestens zwei voneinander getrennte Vorlagebeutel, angebracht innerhalb des Sprühvorrichtungsbehälters, wobei ein erster Vorlagebeutel mit einem ersten Sprühventil in Verbindung steht und ein zweiter Vorlagebeutel mit einem zweiten Sprühventil in Verbindung steht sowie
4. (iv) einen Sprühkopf,

zum gleichzeitigen Versprühen von mindestens zwei Sprühlösungen, wobei die Sprühlösungen jeweils separiert voneinander in den mindestens zwei Vorlagebeuteln vorgelegt werden und wobei die separat vorgelegten Lösungen beim Versprühen vermischt werden, zum Versprühen eines Aktivreinigers.This object is achieved according to the invention by using a spray device for dispensing several liquids

1. (i) a sprayer container,
2. (ii) at least two spray valves,
3. (iii) at least two separate presentation bags attached within the sprayer container, a first presentation bag communicating with a first spray valve and a second presentation bag communicating with a second spray valve, and
4. (iv) a spray head,

for the simultaneous spraying of at least two spray solutions, the spray solutions being introduced separately from one another in the at least two delivery bags and the separately presented solutions being mixed when spraying, for spraying an active cleaner.

According to the invention, by using a spray device in which at least two spray solutions are initially separated and in which the two spray solutions are only mixed for use, active oxygen can be generated in situ and cleaning agents with bleaching and disinfecting action can thus be provided. The use of hypochlorite or other questionable bleaching agents can thus be dispensed with according to the invention.

The in-situ generation of active oxygen is achieved by using a spray device which contains at least two separate presentation bags, each containing a first and a second spray solution. The active component, namely active oxygen, is not yet present in the stable storage form in the spray solutions, but is only formed when spraying by mixing the at least two spray solutions present separately from one another in the spray device.

The active cleaner formed according to the invention by mixing several spray liquids together is, in particular, an oxygen bleach and not a chlorine bleach.

According to the invention, a spray solution A is preferably contained in a first presentation bag and comprises at least one catalyst for releasing oxygen from hydrogen peroxide. A release of oxygen from hydrogen peroxide causes e.g. Heavy metal ions, iodide, hydroxide, iron (III) salts, manganese oxide and copper sulfate. Suitable catalysts are in particular sodium hydroxide, potassium iodide, sodium carbonate and / or silver nitrate. Potassium iodide is particularly preferred as catalyst. The total amount of catalysts in spray solution A is preferably 1-20% by weight, in particular 10-15% by weight, based on the total weight of spray solution A. One or more catalysts can be present. Potassium iodide is preferably present in a proportion of 1 to 6% by weight, in particular 2 to 4% by weight. Sodium carbonate is preferably present in a proportion of 5 to 10% by weight, preferably 6 to 8% by weight.

Sodium hydroxide serves as a catalyst and at the same time for pH adjustment and is accordingly preferably present in a proportion of 0.5 to 2% by weight, in particular 0.75 to 1.5% by weight. Silver nitrate is preferably contained in an amount of 0 to 30 ppm, preferably 1 to 20 ppm.

The ppm and% by weight data for the catalysts each relate to the total weight of solution A.

When the at least two spray solutions are sprayed simultaneously, the hydrogen peroxide contained in the second spray solution B decomposes into oxygen. The catalysts contained in the first spray solution A achieve rapid, active decomposition of hydrogen peroxide into oxygen at room temperature (20 ° C.). Due to this decomposition of hydrogen peroxide to oxygen, the cleaner acts as a strong oxidizing agent with a bleaching and disinfecting effect.

The spray solution A particularly preferably comprises a catalyst combination of potassium iodide, sodium carbonate, sodium hydroxide and silver nitrate, in particular a catalyst combination comprising 2-4% by weight of potassium iodide, 6-8% by weight of sodium carbonate, 0.5 to 1.5% by weight of sodium hydroxide and 1 -30 ppm silver nitrate.

Furthermore, the spray solution A contained in the first presentation bag preferably has a basic pH, in particular a pH of 8 8.0, more preferably a pH 10 10.0, even more preferably a pH 12 12.0 and most preferably a pH. 13.0 on. When the spray solution A from the first presentation bag and the spray solution B from the second presentation bag are mixed, a basic pH value is set in the overall mixture, which further promotes rapid decomposition of hydrogen peroxide to oxygen at room temperature. In particular, hydrogen peroxide decomposes into oxygen when the spray solution A and spray solution B are mixed according to the invention in less than 10 seconds, more preferably in less than 5 seconds, even more preferably in less than 1 second at room temperature.

To set an alkaline pH, the spray solution A preferably contains monoethanolamine, triethanolamine and / or alkali metal hydroxides, in particular sodium hydroxide.

The spray solution A in the first presentation bag can contain further optional components. It preferably contains surfactants, in particular nonionic surfactants, anionic surfactants or amphoteric surfactants. Nonionic alkyl polyglycosides (sugar surfactants) are preferred.

The proportion of surfactants and in particular non-ionic alkyl polyglycosides in spray solution A is preferably 1-8% by weight, in particular 2-6% by weight.

It was also found that the viscosity of the individual solutions has an influence on the spray flow of the respective solutions. Therefore, the spray solution A preferably contains a thickener, particularly preferably xanthan gum for adjusting the viscosity. The proportion of thickener and in particular xanthan gum in spray solution A is particularly preferably 0.010-0.10% by weight.

The spray solution A may also contain complexing agents, preferably citrates, EDTA-Na, nitriloacetic acid or sodium metasilicate. The proportion of complexing agents in the spray solution A is preferably from 0.10 to 2.0% by weight, more preferably from 0.50 to 1.50% by weight.

The rest of the spray solution A preferably consists of water, in particular demineralized water as a solvent.

According to the invention, a spray solution B is presented in a second presentation bag. This spray solution B is preferably a composition comprising hydrogen peroxide. The content of hydrogen peroxide in the spray solution B is preferably from 5-35% by weight, more preferably from 7-15% by weight.

The pH of the spray solution B containing hydrogen peroxide is preferably acidic, so that the hydrogen peroxide remains stable during storage. The spray solution B preferably has a pH of ≤ 5.0, more preferably ≤ 4.0 and most preferably ≤ 3.0.

Peroxide stabilizers, in particular sodium stannate, sodium diphosphate, phosphoric acid and / or uric acid, can optionally be added to the spray solution B.

Spray solution B further preferably contains a thickener for adjusting the viscosity, in particular xanthan gum and / or polyacrylic acid (carbomers). Polyacrylic acid polymers such as Carbopol ETD are used in particular to form a spray. Carbopol ETD 2020 is particularly preferred. The proportion of thickeners and in particular of polyacrylic acid polymers is preferably from 0.10 to 0.5% by weight.

When spraying spray solution A and spray solution B according to the invention, the separately presented solutions are mixed, as a result of which the hydrogen peroxide contained in spray solution B by coming into contact with the catalysts of spray solution A and by shifting the pH to basic at room temperature according to the following equation: 2H ₂ O ₂ → 2H ₂ O + O ₂ disintegrates. This forms an oxygen-based active cleaner when sprayed in situ.

In one embodiment of the present invention, the spray head is designed such that the active cleaner formed by mixing the solutions contained in the storage bags together is sprayed. In a further, likewise preferred embodiment, the active cleaner is additionally foamed so that it already appears as a foam on the surface to be treated. Foaming can be achieved, for example, by attaching a mesh for foaming in the spray head.

The active cleaner formed according to the invention by mixing at least two spray solutions when spraying is preferably an active cleaner with a bleaching and disinfecting effect. It is particularly preferably a stain remover, an upholstery cleaner, a sanitary cleaner, an oven cleaner, a grill grate cleaner, a tile joint cleaner, a silicone joint cleaner, a stainless steel cleaner or a chrome cleaner.

For the specific design of the cleaners, further specific ingredients can be contained in the first and / or second spray solution. However, it is also possible to provide further spray solutions with specific ingredients in one or more additional presentation bags, which are each connected to a separate spray valve.

Suitable spray devices for dispensing several liquids, which can be used for spraying an active cleaner for the application according to the invention, are for example in EP 2 508 446 A1 , in EP 2 597 055 A1 , in EP 2 647 587 A1 as in EP 2 738 117 A1 described.

The spray device used according to the invention comprises a spray device container. A usual spray can can be used for this. The filling volume is preferably from 100 ml to 2000 ml, preferably from 200 ml to 1000 ml.

For separate storage and simultaneous spraying of a plurality of spray liquids, the spray device used according to the invention has at least two spray valves and at least two separate delivery bags attached inside the spray device container. A first presentation bag is connected to a first spray valve and a second presentation bag is connected to a second spray valve. In this way, it is possible to store the spray solutions packed separately from one another within the spray device container in the individual presentation bags during storage and storage. The spray solutions are then dispensed from the separate supply bags via the respective spray valve and only mixed when spraying.

The spray device used according to the invention further comprises a spray head. The at least two spray valves are preferably operated simultaneously by the one spray head, so that the multiple liquids are dispensed by simply pressing on the spray head.

A schematic representation of a spray device that can be used according to the invention is shown in FIG 1 shown.

As described herein, various specific spray solutions A and B are in particular presented in the first presentation bag and in a second presentation bag. According to the invention, the materials of the supply bags, the spray valves and the spray head are preferably selected in accordance with the compositions of the spray solutions A and B. In particular, contact between the several spray solutions before spraying and penetration of air into the spray solutions during storage must be prevented.

The first presentation bag, which is intended in particular to hold a spray solution A, can be formed from a single material or from a laminated material. The first presentation bag is preferably formed from a thermoplastic polymer, in particular a polyethylene or polypropylene.

Particularly preferably, the first presentation bag for receiving the spray solution A is formed from a laminated material which has at least one layer which prevents the passage of oxygen and a further inner layer which prevents contact with the spray solution A with the oxygen-tight layer.

In one embodiment, the first presentation bag is formed from a laminated material, comprising a metal foil and an inner layer made of a thermoplastic polymer. For example, an aluminum foil or an iron foil can be used as the metal foil, an aluminum foil being preferred. The thickness of the metal foil and in particular the aluminum foil is 5-20 µm. The inner layer made of thermoplastic polymer preferably consists of a polyolefin and in particular of polyethylene or polypropylene. A presentation bag made from this material has been shown to be particularly resistant to compositions with high pH values above pH 13.

The laminated material for the first presentation bag can furthermore preferably have an outer layer, in particular a polyethylene terephthalate layer or a nylon layer.

The individual layers of the laminate material for the first presentation bag are preferably bonded to one another with an adhesive, polyether urethane resin adhesives having proven particularly suitable.

A laminate material comprising polyethylene terephthalate as the outer layer, an aluminum foil as the oxygen-blocking layer and a polyolefin, in particular polypropylene or polyethylene, as the inner layer has proven to be particularly suitable as the material for the first presentation bag. The thickness of the outer polyethylene terephthalate layer is preferably 5-20 μm, the thickness of the aluminum foil 5-20 μm and the thickness of the polyolefin inner layer 10-100 μm.

The layers are preferably bonded to one another by means of an adhesive, polyether urethane resin adhesives being particularly preferred.

The second presentation bag, which is intended in particular to hold a spray solution B, can be formed from a single material or from a laminated material. The second presentation bag is preferably formed from a thermoplastic polymer, in particular a polyethylene or polypropylene.

Particularly preferably, the second presentation bag for receiving the spray solution B is formed from a laminated material which has at least one layer which prevents the passage of oxygen and a further inner layer which prevents contact with the spray solution B with the oxygen-tight layer.

In one embodiment, the second presentation bag is formed from a laminated material, comprising a metal foil and an inner layer made of a thermoplastic polymer. For example, an aluminum foil or an iron foil can be used as the metal foil, an aluminum foil being preferred. The thickness of the metal foil and in particular the aluminum foil is 5-20 µm. The inner layer made of thermoplastic polymer preferably consists of a polyolefin and in particular of polyethylene or polypropylene. A presentation bag made of this material has been shown to be particularly resistant to compositions with low pH values below pH 3.

The laminated material for the second presentation bag can furthermore preferably have an outer layer, in particular a polyethylene terephthalate layer or a nylon layer.

The individual layers of the laminate material for the second presentation bag are preferably bonded to one another with an adhesive, polyether urethane resin adhesives having proven particularly suitable.

A laminate material comprising polyethylene terephthalate as the outer layer, aluminum foil as the oxygen-blocking layer, polyethylene terephthalate as the intermediate layer and a polyolefin, in particular polypropylene or polyethylene, as the inner layer has proven to be particularly suitable as the material for the second presentation bag. The thickness of the outer polyethylene terephthalate layer is preferably 5-20 μm, the thickness of the aluminum foil 5-20 μm, the thickness of the polyethylene terephthalate intermediate layer 5-20 μm and the thickness of the polyolefin inner layer 10-100 μm.

The layers are in turn preferably connected to one another by means of an adhesive, polyether-urethane resin adhesives again being particularly preferred.

With the preferred bag materials, safe storage of the spray solutions is possible in particular even at elevated temperatures of 40-60 ° C.

According to the invention, the active cleaner to be sprayed is formed in situ by simultaneously dispensing at least two different spray solutions. The at least two spray valves are preferably set such that the spray flow of the spray solutions contained in the at least two separate delivery bags, based on the volume, is 2: 1 to 1: 2, preferably 1.5: 1 to 1: 1.5 and is particularly preferably 1.1: 1 to 1: 1.1. The spray flow can be adjusted, for example, by the viscosity of the spray solutions. Another way to adjust the spray flow is to use predefined cross sections of the spray valves. It is often preferred to set the spray flow of the individual spray solutions to be as large as possible. In this embodiment, the same size of the original bag can be used and a complete emptying of all the original bags is easily achieved. In some configurations, however, it can be preferred to mix different proportions of the individual spray solutions with one another. For this purpose, it is possible according to the invention to set practically any spray flows. For example, in order to achieve a basic pH of the overall composition, it may be advantageous to set a higher spray flow of an alkaline component. In this way, an overall alkaline pH value is achieved without the alkaline component itself having to have a pH value that is too high and therefore difficult to handle.

1. (i) einen Sprühvorrichtungsbehälter,
2. (ii) mindestens zwei Sprühventile,
3. (iii) mindestens zwei voneinander getrennte Vorlagebeutel, angebracht innerhalb des Sprühvorrichtungsbehälters, wobei ein erster Vorlagebeutel mit einem ersten Sprühventil in Verbindung steht und ein zweiter Vorlagebeutel mit einem zweiten Sprühventil in Verbindung steht sowie
4. (iv) einen Sprühkopf,

zum gleichzeitigen Versprühen von mindestens zwei Sprühlösungen, wobei die Sprühlösungen jeweils separiert voneinander in den mindestens zwei Vorlagebeuteln vorgelegt werden und wobei die separat vorgelegten Lösungen beim Versprühen im Sprühkopf vermischt werden,
wobei dass in dem ersten Vorlagebeutel wenigstens ein Katalysator zur Freisetzung von Sauerstoff aus Wasserstoffperoxid enthalten ist und vorzugsweise ein Katalysator ausgewählt aus Natriumhydroxid, Kaliumiodid, Natriumcarbonat und/oder Silbernitrat enthalten ist, und
wobei in dem zweiten Vorlagebeutel eine Zusammensetzung umfassend Wasserstoffperoxid enthalten ist.The present invention further comprises a spray device for dispensing multiple liquids

1. (i) a sprayer container,
2. (ii) at least two spray valves,
3. (iii) at least two separate presentation bags attached within the sprayer container, a first presentation bag communicating with a first spray valve and a second presentation bag communicating with a second spray valve, and
4. (iv) a spray head,

for simultaneous spraying of at least two spray solutions, the spray solutions each being introduced separately from one another in the at least two delivery bags and the separately presented solutions being mixed in the spray head when spraying,
wherein the first presentation bag contains at least one catalyst for releasing oxygen from hydrogen peroxide and preferably contains a catalyst selected from sodium hydroxide, potassium iodide, sodium carbonate and / or silver nitrate, and
a composition comprising hydrogen peroxide being contained in the second presentation bag.

The respective spray solutions contained in the delivery bags of the spray device according to the invention are in particular configured as previously stated herein.

The invention is further illustrated by the attached figure and the following examples.

1 shows a schematic representation of a spray device which can be used according to the invention ( 10 ) comprising a sprayer container ( 12 ), at least two spray valves ( 14 . 16 ), at least two separate presentation bags ( 18th . 20th ), as well as a spray head ( 22 ).

Examples

example 1

In a spray can with two separate presentation bags, each with a volume of 100 ml per bag, a spray solution A is placed in the first presentation bag and a spray solution B in the second bag, as specified below.

When spraying, the spray solutions are mixed and a cleaning agent based on active oxygen is formed.

Spray solution A comprising: Na metasilicate Complexing agent 0.50% by weight Tri-sodium citrate Complexing agent 0.50% by weight Xanthan gum Thickener 0.050% by weight AgNO ₃ solution (1%) catalyst 0.300% by weight Potassium iodide catalyst 2,000% by weight sodium catalyst 7,000% by weight NaOH (50%) pH adjustment 2,000% by weight Glucopon GD70 Surfactant 5,000% by weight Monoethanolamine pH adjustment 10,000% by weight Water, demineralized solvent 72.65% by weight

This spray solution A has a pH of pH 13.

A spray solution B comprising: Carbopol ETD Thickener 0.150% by weight hydrogen peroxide Active substance 25,000% by weight (35% solution) phosphoric acid Peroxide stabilizer 0.500% by weight (85%) Water, demineralized solvent 74.350% by weight

The spray solution B containing hydrogen peroxide has a pH of pH 3.

Example 2

The spray can produced as described in Example 1 was subjected to stability tests. The spray can was stored at 40 ° C for 3 months. It was found that both the spray solutions and the inner bags are stable and no changes were observed.

Example 3

A spray can made according to example 1 for dispensing several liquids was tested in various applications. It was shown that the active cleaner formed in situ during spraying developed an excellent cleaning effect and could therefore be used in particular as a stain remover for textiles and as an upholstery cleaner.

Furthermore, excellent results were shown when used as a stainless steel or chrome cleaner as well as when used as a tile joint and silicone joint cleaner.

QUOTES INCLUDE IN THE DESCRIPTION

This list of documents listed by the applicant has been generated automatically and is only included 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

• EP 2508446 A1 [0028]
• EP 2597055 A1 [0028]
• EP 2647587 A1 [0028]
• EP 2738117 A1 [0028]

Claims (13)

Use of a spray device for dispensing multiple liquids comprising (i) a sprayer container, (ii) at least two spray valves, (iii) at least two separate presentation bags attached within the sprayer container, a first presentation bag communicating with a first spray valve and a second presentation bag communicating with a second spray valve, and (iv) a spray head, for the simultaneous spraying of at least two spray solutions, the spray solutions each being introduced separately from one another in the at least two presentation bags and the separately presented solutions being mixed during spraying, for spraying an active cleaner. Use after Claim 1 , characterized in that the first presentation bag contains a spray solution comprising at least one catalyst for releasing oxygen from hydrogen peroxide. Use after Claim 1 or 2 , characterized in that the first presentation bag contains at least one catalyst selected from sodium hydroxide, potassium iodide, sodium carbonate and / or silver nitrate. Use according to one of the Claims 1 - 3 , characterized in that the pH of the spray solution in the first presentation bag is at least 13.0. Use according to one of the Claims 1 - 4 , characterized in that the first presentation bag contains a spray solution comprising a catalyst for releasing oxygen from hydrogen peroxide, at least one surfactant, at least one thickener, at least one complexing agent and at least one alkaline component. Use according to one of the Claims 1 - 5 , characterized in that a spray solution comprising hydrogen peroxide is contained in the second presentation bag. Use according to one of the Claims 1 - 6 , characterized in that a spray solution comprising hydrogen peroxide, at least one peroxide stabilizer and at least one thickener is contained in the second presentation bag and / or characterized in that the spray solution contained in the second presentation bag has a pH value ≤ 3.0. Use according to one of the Claims 1 - 7 , characterized in that the active cleaner is sprayed and / or foamed. Use according to one of the Claims 1 - 8th , characterized in that the active cleaner is an intensive cleaner with a bleaching and disinfecting effect, a stain remover, an upholstery cleaner, a sanitary cleaner, an oven cleaner, a grill grate cleaner, a tile joint cleaner, a silicone joint cleaner, a stainless steel cleaner or a chrome cleaner. Use according to one of the Claims 1 - 9 , characterized in that the presentation bags are at least partially made of aluminum. Use according to one of the Claims 1 - 10 , characterized in that the at least two spray valves are set in such a way that the spray flow of the spray solutions contained in the at least two separate presentation bags is based on the volume 2: 1 to 1: 2, preferably 1.5: 1 to 1: 1.5 and particularly preferably 1.1: 1 to 1: 1.1. Use according to one of the Claims 1 - 11 , characterized in that when the first spray solution from the first presentation bag and the second spray solution from the second presentation bag are mixed, oxygen is released during the spraying at room temperature by means of the catalysts contained in the first spray solution. A spray device for dispensing multiple liquids comprising (i) a spray device container, (ii) at least two spray valves, (iii) at least two separate presentation bags attached within the spray device container, a first presentation bag communicating with a first spray valve and a second presentation bag communicating with a second spray valve, and (iv) a spray head, for simultaneous spraying of at least two spray solutions, the spray solutions being introduced separately from one another in the at least two presentation bags and the separately presented solutions being mixed in the spray head during spraying, the at least one catalyst for releasing oxygen from hydrogen peroxide being contained in the first presentation bag is preferably selected from sodium hydroxide, potassium iodide, sodium carbonate and / or silver nitrate, and wherein a composition comprising hydrogen peroxide is contained in the second pouch.

Images