EP3033411B1 - Tablette de nettoyage à plusieurs phases - Google Patents

Tablette de nettoyage à plusieurs phases Download PDF

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Publication number
EP3033411B1
EP3033411B1 EP14747358.1A EP14747358A EP3033411B1 EP 3033411 B1 EP3033411 B1 EP 3033411B1 EP 14747358 A EP14747358 A EP 14747358A EP 3033411 B1 EP3033411 B1 EP 3033411B1
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EP
European Patent Office
Prior art keywords
cleaning
phase
cleaning tablet
tablet
cleaner phase
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP14747358.1A
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German (de)
English (en)
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EP3033411A1 (fr
Inventor
Meinrad Budich
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Budich International GmbH
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Budich International GmbH
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Publication date
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Publication of EP3033411A1 publication Critical patent/EP3033411A1/fr
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Classifications

    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D17/00—Detergent materials or soaps characterised by their shape or physical properties
    • C11D17/0047—Detergents in the form of bars or tablets
    • C11D17/0065—Solid detergents containing builders
    • C11D17/0073—Tablets
    • C11D17/0078—Multilayered tablets
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D17/00—Detergent materials or soaps characterised by their shape or physical properties
    • C11D17/0047—Detergents in the form of bars or tablets
    • C11D17/0065—Solid detergents containing builders
    • C11D17/0073—Tablets
    • C11D17/0082—Coated tablets
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/02—Inorganic compounds ; Elemental compounds
    • C11D3/04—Water-soluble compounds
    • C11D3/044—Hydroxides or bases
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/02—Inorganic compounds ; Elemental compounds
    • C11D3/04—Water-soluble compounds
    • C11D3/08—Silicates
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/02—Inorganic compounds ; Elemental compounds
    • C11D3/04—Water-soluble compounds
    • C11D3/10—Carbonates ; Bicarbonates
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
    • C11D7/02—Inorganic compounds
    • C11D7/04—Water-soluble compounds
    • C11D7/06—Hydroxides
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
    • C11D7/02—Inorganic compounds
    • C11D7/04—Water-soluble compounds
    • C11D7/10—Salts
    • C11D7/12—Carbonates bicarbonates
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
    • C11D7/02—Inorganic compounds
    • C11D7/04—Water-soluble compounds
    • C11D7/10—Salts
    • C11D7/14—Silicates

Definitions

  • the present invention relates to a multi-phase cleaning tablet, a manufacturing method for a multi-phase cleaning tablet and a use of this multi-phase cleaning tablet for cleaning kitchen appliances, especially in the commercial kitchen area.
  • a washing or cleaning agent shaped article which is preferably used for automatic dishwashing or for textile washing.
  • the detergent tablet comprises at least one viscoelastic phase which is arranged between two tableted phases.
  • the tableted phases may include, but are not limited to, harmful bleaching agents, such as: As percarbonates and chlorine or bromine releasing substances.
  • the detergent tablet should combine the highest level of mechanical stability with good solubility and allow the incorporation of incompatible ingredients.
  • EP 1 600 497 A1 is a machine cleaner, especially for 3in1 dishwashers described.
  • the machine cleaner comprises a cleaner, a softener and a rinse aid system and may be designed in the manner of a multi-phase tablet.
  • the cleaner system includes an alkali system, e.g. For example, with sodium hydroxide (caustic soda), with sodium hydroxide is highly corrosive, so that when handling the machine cleaner by a user appropriate safety measures are observed.
  • water-soluble protective films for example made of polyvinyl alcohol
  • Such a multi-phase detergent tablet of the present invention comprises a first detergent phase having an alkali system of one or more components of which at least one non-contacting component contains sodium hydroxide (caustic soda) and a second detergent phase for covering the first detergent phase, wherein the second detergent phase is substantially non-contacting, namely contains no corrosive, toxic or hygroscopic, optionally no irritating, components.
  • first detergent phase having an alkali system of one or more components of which at least one non-contacting component contains sodium hydroxide (caustic soda) and a second detergent phase for covering the first detergent phase, wherein the second detergent phase is substantially non-contacting, namely contains no corrosive, toxic or hygroscopic, optionally no irritating, components.
  • Contact inadequate components are for the purposes of the invention, such ingredients that either should not come into contact with the skin, as they are either hazardous or highly irritating, such as the above-mentioned highly alkaline component sodium hydroxide or other corrosive, or toxic or irritating compounds, or components which change chemically or physically upon contact with the skin or the environment, such as B. hygroscopic compounds.
  • contact-inappropriate components are those compounds that should come into contact with the skin or the environment as little as possible or not at all.
  • Toxic means substances or mixtures that are toxic or harmful to humans when inhaled, when in contact with the skin or when ingested.
  • Corrosive means substances or mixtures that can cause burns. First and foremost, this means burns to the human skin or mucous membranes. Highly irritating are substances or mixtures that can cause serious eye damage. Both are usually already given at pH values less than 2 or greater than 11.
  • irritant is meant substances or mixtures that irritate the eyes, the respiratory system or the skin. This is usually already given at pH values less than 4 or greater than 10. Under weakly irritant one understands compounds or substances, which can lead to at best to small skin irritations and z. B have a pH of 8 to 10 or 4 to 5.
  • Hygroscopic compounds are compounds which, when in contact with water or moisture, e.g. B. humidity, absorb the water to a high degree and even partially build in their crystal lattice or form hydrates.
  • Highly hygroscopic compounds are compounds which are e.g. absorb at least one third of their own weight of water and / or z.T. due to their hygroscopy. however, are also used for drying air, such as sodium chloride (sodium chloride), calcium chloride, silica gel, sodium hydroxide, potassium hydroxide, methylglycinediacetic acid, soda, phosphate, metasilicate and many acids are also hygroscopic.
  • contact-suitable components are those compounds and substances which, on contact with the skin or the environment, cause little to no damage or hardly or not at all change. Basically, this may include light irritant compounds that cause no permanent damage or only slight irritation of the skin.
  • the fact that the second detergent phase contains "essentially" no contact-inappropriate components is therefore to be understood as meaning that the components in the detergent phase are preferably not present at all or at best only in such amounts that these conditions are fulfilled with respect to contact with the detergent phase.
  • Polyphase in the context of the invention is a cleaning tablet with three or more layers or layers, which are arranged one above the other to give a cleaning tablet layer-like structure of the first and second detergent phases and optionally further detergent phases.
  • Such horizontal layer structures are often referred to as sandwich structures.
  • the cleaning tablet at least three superimposed layers, with a first layer of the second detergent phase, a second, middle layer of the first detergent phase and a third layer of the second detergent phase.
  • the first layer and the third layer may comprise a similar or identically composed second detergent phase or may in principle include different components as long as they fall within the definition that they comprise substantially exclusively or predominantly contact-suitable or essentially no contact-inappropriate component.
  • a preferred embodiment comprises a three-layer cleaning tablet having a first layer of a second detergent phase, a second, middle layer of a first detergent phase and a third layer of a second detergent phase having a different composition to the second detergent phase of the first layer.
  • the compositions of the two outer layers can have both chemical and physical differences.
  • Such a layered construction advantageously makes it possible to cover the first detergent phase from two sides, which are preferably selected such that the two largest sides are covered by the second detergent phase.
  • only on the edge surfaces of such a layered cleaning tablet remains an incompletely covered first detergent phase with the non-contact, ie in particular the irritating, corrosive, or toxic, components. This outwardly uncovered first detergent phase, z. B.
  • the user can be made aware of the layers of the second cleaning phase, which contains no corrosive or toxic and preferably also no irritating components.
  • a different color design for example, a warning color
  • the first cleaning phase, with which any contact is to be avoided, can be signaled.
  • a water-soluble, preferably quickly water-soluble, protective film is provided.
  • the water-soluble protective film preferably consists of a cooled or hardened liquid coating composition, which is stable with respect to the first and second detergent phase and dissolves quite quickly during use, ie at the beginning of the cleaning process.
  • the additional covering of the edges of the cleaning tablet allows additional protection against accidental contacting of the first detergent phase with the component containing sodium hydroxide (caustic soda) in the handling of the cleaning tablet but hinders the dissolution process of the first and second detergent phases in use hardly or not at all.
  • Water-soluble substances which can preferably be applied in liquid form (for example as a solution or melt) and then form a water-soluble protective film are suitable for the coating composition.
  • Preferred examples thereof are sugar compounds, polyethylene glycols and solid or meltable surfactants or polymers.
  • a manufacturing method for such a cleaning tablet which comprises the step of preparing an at least three-layered cleaning tablet having a first detergent phase with at least one component containing sodium hydroxide (caustic soda) and a second detergent phase in the form of a cover the first detergent phase on at least two opposite sides of the first detergent phase comprises.
  • this covering step it is advantageously possible to provide a cleaning tablet in which the two outer layers are formed from the second cleaning phase.
  • These can also be handled without excessive safety regulations, for example without gloves, since they contain no corrosive or toxic and optionally also no irritating components. The user does not get in contact with the corrosive or toxic or irritating components of the central first cleaning phase in the usual application of these cleaning tablets.
  • This advantageous distribution of the respective constituents into the different compartments of a multiphase cleaning tablet according to the invention offers a simple and cost-effective provision of a cleaning tablet for safe handling.
  • the tableting processes used here are generally known to the person skilled in the art.
  • a liquid coating composition is applied to at least a portion of the circumferential sides or edges of the previously prepared multi-phase cleaning tablet which is not covered by the second detergent phase.
  • a water-soluble, non-hazardous protective film is formed on these edges or lateral surfaces.
  • a particularly preferred coating only or exclusively on the peripheral sides or edges of the cleaning tablet in addition to the material savings has the advantage that the two outer cleaning phases are uncoated in a large area and therefore dissolve faster, than in a complete coating.
  • Another aspect of the invention relates to a use of this cleaning tablet according to the invention for cleaning kitchen appliances, especially from the commercial kitchen area, such.
  • this cleaning tablet according to the invention for cleaning kitchen appliances, especially from the commercial kitchen area, such.
  • an increased safety of the user compared with the conventional cleaning tablets, which frequently contain strongly alkaline, ie corrosive or even irritating cleaner components, in particular also in the outer layers because of their good solubility, can be achieved.
  • the cleaning tablet according to the invention has a cylindrical or cuboidal shape.
  • Cylindrical or cuboid tablets generally have a lower height than width, so that the edges or the lateral surface are preferably smaller than the two opposite base surfaces. Due to these basic forms of cleaning tablets, it is beneficial to the bases than to take those areas which are covered by the second cleaner phase. This achieves a predominant coverage of the first cleaning phase by the second cleaning phase, so that the handling can be improved.
  • the first cleaning phase comprises a metasilicate.
  • This additional component can impart high alkalinity to the first detergent phase in addition to sodium hydroxide (NaOH).
  • Metasilicates such as sodium hydroxide, are classified as highly irritating or corrosive components subject to mandatory labeling.
  • An alkaline detergent phase in the sense of the invention is a phase which, when dissolved in water (in a 1% strength solution), preferably sets an alkaline pH of greater than 10, particularly preferably greater than 12. In this case, one or a combination of several of these alkaline components or in combination with additional alkaline agents can be used in the alkaline cleaning tablet in order to adjust the alkalinity (also called "basicity”) appropriately.
  • alkaline-based detergents may also have a cleaning action based on complex-forming groups or surface-active groups, as long as they work in an alkaline medium (pH). Value greater than 10).
  • the alkaline component and an additional detergent component may be combined in one substance, but may also be separate substances as long as they are included together in the first detergent phase.
  • the cleaning tablet according to the invention contains a total of alkaline cleaner components preferably in a total amount of about 20 to 80 wt .-%, more preferably in a proportion of about 40 to 70 wt .-%. Based on the first detergent phase in which the strongly alkaline components are concentrated, the alkaline detergent components can account for up to 100% by weight.
  • biocides eg quaternary ammonium compounds
  • Their proportions are in the above areas or the expert knows in which concentrations the respective substances are used appropriately.
  • Biocides can give a desired disinfecting effect especially in rather lower concentrations below 10%, preferably below 5%, are used.
  • the second cleaning phase of the cleaning tablet according to the invention comprises a weak alkali system which contains, for example, soda and / or di-silicates, but is at most irritating in the composition (ie in a 1% solution, for example, a pH of 10 to 11 and preferably only has a pH (in a 1% solution) in the weakly alkaline range (about pH 8 to 10).
  • a weak alkali system which contains, for example, soda and / or di-silicates, but is at most irritating in the composition (ie in a 1% solution, for example, a pH of 10 to 11 and preferably only has a pH (in a 1% solution) in the weakly alkaline range (about pH 8 to 10).
  • the second detergent phase preferably contains the alkaline detergent components in a total amount of not more than about 40% by weight, more preferably in a proportion of about 10 to 30% by weight, with respect to the second detergent phase.
  • these alkaline components of the first and the second detergent phase of the tablet matrix are mixed, which also falls under the invention, if these in the tablet matrix in the tabletting in whole or in part in more stable products, e.g. Hydrates or oxides, etc., as long as this conversion is reversible again in the use of the cleaning tablet in water, thus providing the desired alkalinity (also called "basicity").
  • the tablet matrix may also be composed of the alkaline component itself.
  • alkaline-based detergents may also have a cleaning action based on complex-forming groups or surface-active groups. Protein-denaturing alkaline substances can also be used as cleaner components, as long as they can develop their activity in an alkaline environment.
  • the first and / or the second cleaning phase may comprise at least one additional cleaning agent.
  • These substances can be, for example, complexing agents whose additional cleaning action is based on the complexing property.
  • surfactants can be mentioned as such additional cleaning agents.
  • Exemplary compounds may be selected from the group of ionic or nonionic surfactants or complexing agents, in particular phosphates, Polyphosphates, phosphonates, polymers, phyllosilicates, Na-methylglycinediacetic acid, polyepoxysuccinic acid and gluconates are selected. All these detergents are expediently as little foam-forming as possible in order to avoid excessive foam formation from the outset.
  • Preferred surfactants are fatty alcohol ethoxylates, in particular end-capped Plurafac types (BASF), glucosides (Akzo) or fatty amines.
  • BASF Plurafac
  • anionic surfactants are conceivable, they are less relevant because they are often highly foaming.
  • Alkali-stable phosphonates are z. For example, salts of the nitrilotrismethylene phosphonic acid of the sequion types (polygon) or cublene types (Zschimmer & Schwarz).
  • the polymers used are preferably polycarboxylates (BASF).
  • Chelating agents are preferably used in an amount of not more than 10 to 40 wt .-%, more preferably in a proportion of about 15 to 25 wt .-%, of the cleaning tablet.
  • Surfactants are preferably used in an amount of about 0.2 to 20 wt .-%, more preferably in an amount of about 0.5 to 5 wt .-%, of the cleaning tablet. The amounts are based on the entire cleaning tablet as well as on the first or second cleaning phase.
  • the first and / or the second detergent phase may according to a further advantageous embodiment have a tablet matrix with conventional matrix components.
  • you may additionally include one or more builders (for example, water-soluble sulfates such as Na sulfate) and / or auxiliaries, especially, for example, binders, tabletting aids, disintegrants, dissolution inhibitors, retarding agents, or lubricants.
  • the builders are preferably used in an amount of not more than 20 wt .-%, more preferably in a proportion of not more than 10 wt .-%, of the cleaning tablet.
  • the auxiliaries are preferably used in an amount of not more than 20% by weight, more preferably in a proportion of about 3 to 10% by weight, of the cleaning tablet.
  • the quantities are based on the entire cleaning tablet as well as on the first and second cleaning phase.
  • Excipients for tablets fulfill a wide variety of tasks and are indicated accordingly in the literature. Basically, a distinction is made between the following categories of different excipients, because of their different functions. Binders or direct tabletting excipients include starches, celluloses, Polyethylene glycol, calcium compounds, bentonites, polysaccharides, sugar compounds, proteins or synthetic polymers.
  • Exemplary disintegrants include starches, (microcrystalline) celluloses, alginates, polysaccharides, proteins, cross-linked polyvinylpyrrolidine, polymethacrylate derivatives, or bentonites.
  • Exemplary dissolution retardants include waxes, ethylcelluloses, fats, polyvinylacetate, carboxymethylcellulose, polyacrylic acid, polyethylene glycol, gels or stearates.
  • Suitable lubricants include fatty acid esters, talc, oils and fats or fatty acids or fumed silica.
  • a descaling agent such as, for example, a rinse aid, an ion exchange agent, a special cleaning agent for further contamination, etc.
  • a cleaning tablet such as, for example, you can use your own layers or areas.
  • an adhesive can be used, which connects the individual layers of the first and second detergent phase together.
  • polyethylene glycol can be used for this purpose. This is applied in the manufacturing process of the cleaning tablet according to the invention, for example in molten form on two opposite sides of the first detergent phase before subsequently formed from both sides by pressing prefabricated, solid second detergent phases three-layer cleaning tablets.
  • the three-layer tablets e.g. B. with usual weight for detergent tablets weights of about 10 to 100 g, pressed in square or round shape on a commercial rotary tablet machine in an integrated form.
  • PEG polyethylene glycol
  • the cleaning tablet according to the invention may preferably be packaged individually or in a defined number in a sealed foil, a so-called flow pack (a tubular bag in which the products are placed horizontally in the bag for packaging), so that they are accurately and simply dosed on occasion can.
  • a single package of each cleaning tablet is preferred, but not necessarily required by the above-described improved handleability, since user exposure to the highly alkaline ingredients in the middle layer has been significantly reduced by masking. Therefore, the cleaning tablets can also without additional packaging in a collective packaging, eg. B. without tubular bag loose or stacked in a sealed plastic container, be packed.
  • the cleaning tablet comprises holes and / or depressions which penetrate one or more layers with the first and / or second detergent phase.
  • the holes or depressions are configured in particular in the upper (or also in the lower) base area with the second detergent phase and either pass completely through the cleaning tablet or protrude at least as far as the middle layer, ie. H. into the first cleaning phase, in order to enlarge the surface of the exposed first cleaning phase.
  • the dissolution rate of the layer with the first detergent phase i. H. of the middle layer, although it is covered with cleaner layers for ease of handling.
  • these holes or recesses may not be touchable inside due to their dimensions, you can optionally also inside, ie. H. on the inner surfaces or edges, be covered with a water-soluble coating agent.
  • the manufacturing process for a multi-phase cleaning tablet includes, inter alia, the step of producing an at least three-layer cleaning tablet having a first detergent phase with at least one convincedungeauchen, sodium hydroxide-containing component and a second detergent phase in the form of a cover of the first detergent phase to at least two opposite sides of the first detergent phase, wherein the second detergent phase contains substantially no contact-unsuitable, namely no corrosive, toxic, or hygroscopic, optionally also no irritating, components.
  • the production method according to the second aspect of the invention can ensure improved handling of the cleaning tablets by means of simple method steps and commercially available production systems and machines.
  • the corrosive, irritating and toxic components can be handled easily.
  • the cleaning tablet is continuously or discontinuously rotated about its own axis, while the coating composition applied to the edges of the cleaning tablet, particularly preferably sprayed, rolled and / or painted, is.
  • the coating composition can be achieved on the respective edges by immersing the edges in a dipping bath with the liquid coating composition and turning or rolling the tablet edges therein.
  • the manufacturing method additionally comprises the step of cooling the liquid coating composition (melt) by means of a cold air blower or the evaporation of the solvent by means of a cold or hot air blower for solidification of the coating composition.
  • the finished tablets are packed, for example, in a tubular bag.
  • a tubular bag it is also possible to use other packaging variants due to the special division of the hazardous components in the multi-layer cleaning tablets.
  • the middle layer containing the high proportion of highly alkaline, caustic, toxic, irritating or hygroscopic components it may be appropriate to improve the attack surface of the water for the resolution of the middle layer by special solution accelerators or by constructive means.
  • the surface of the middle layer can be increased by providing the outer layers of the cleaning tablet with one or more possibly continuous holes as mentioned above. Therefore, according to a preferred embodiment of the production method, an additional step may be performed, namely the provision of holes or depressions which penetrate one or more layers with the first or second detergent phase.
  • an additional step may be performed, namely the provision of holes or depressions which penetrate one or more layers with the first or second detergent phase.
  • one or more cavities penetrating as far as possible can be introduced into the tablet in the cleaning tablet with a solid mandrel (for example in a mold). This ensures that the water can also penetrate into the tablet from the center of the tablet or from several places and thus dissolves it more quickly on shorter diffusion paths.
  • the cleaning tablet according to the invention can be used in particular for cleaning kitchen appliances, in particular from the commercial sector, which are usually cleaned with alkaline to highly alkaline detergents.
  • Examples are z.
  • As commercial dishwashers, ovens, grills, convection, large cooking vessels, degreasers, and soiled surfaces from the commercial kitchen area especially such ovens, grills, convection, large cooking vessels, degreasers with an integrated self-cleaning program.
  • this does not preclude the use of the cleaning tablets for ordinary kitchen appliances from the private sector and for soiled items, pots, dishes, etc. which are cleaned more frequently or after each use.
  • Chlorine-containing ingredients in cleaning tablets are also among the toxic or corrosive substances that can be used in the first cleaning phase.
  • Such multiphase cleaning tablets are used, for example, as sanitary cleaners or toilet blocks.
  • the multiphase cleaning tablet according to the invention results from the special layer structure of the three-layer tablets, for automatic metering devices. If the tablets are to be used in an automatic metering device in which the individual tablets can no longer be protected individually in a tubular bag (so-called flowpacks), they lie directly on or against one another without protection. The tablets are stacked in the metering device, wherein usually the lowest tablet can be dosed by a mechanical slide in the device. Since the outer layers contain no highly alkaline ingredients, which are usually highly hygroscopic, they can not stick together due to the influence of humidity. This ensures safe single dosing.
  • contact unsuitable may also be understood to mean that the component in question of the first cleaning phase is not suitable for contact with other adjacent tablets, because undesired effects may occur, such as sticking together of two tablets, especially in the case of strongly hygroscopic components.
  • the coating of the edges in this case is an application as stacked tablets in which no contact occurs between the peripheral edges (the sides transverse to the lamination) of the tablets, optional and can easily be eliminated.
  • the cleaning performance is not compromised due to the special construction, since the highly alkaline ingredients are present in the middle layer and can quickly develop their effect after dissolving the cleaning tablet.
  • the cleaning tablet dissolve rapidly in water, but also that the dissolution rate of the middle layer containing the high proportion of highly alkaline, caustic, toxic or irritating components is high. Since the attack surface of the water for the dissolution of the middle layer is relatively small due to the special structure of the multiphase cleaning tablet, it is advantageous to improve the dissolution rate of the middle layer either by special solution accelerators or by constructive means.
  • the enclosed surface of the middle layer by one or more as continuous holes in the first detergent phase and / or the second detergent phase can be increased. Therefore, according to a simple embodiment, one or more recesses which penetrate as far as possible are introduced into the tablet into the tablet with a fixed mandrel or preferably with a displaceably mounted mandrel. This ensures that the water can also penetrate into the tablet from the center of the tablet or from several places and thus dissolves it more quickly on shorter diffusion paths.
  • FIG. 1 a perspective view of a first embodiment of a cleaning tablet, which has a cuboidal basic structure.
  • the cleaning tablet 1 consists of a first layer 10 of a second detergent phase, a second layer 12 of a first detergent phase and a third detergent layer 14, which in turn consists of the second detergent phase.
  • the cleaning tablet 1 has a cuboidal basic shape, wherein the two large base areas of the first cleaning phase are covered with the layers of the second cleaning phase.
  • the first cleaning phase is the contact-unsuitable, ie corrosive, toxic, irritating or hygroscopic substances only at the edge surfaces 20 free, so that the cleaning tablet on the sides of the second detergent phase can be handled well despite the exposed at the edges of substances.
  • FIG. 2 a cleaning tablet 1 according to a second embodiment is shown, which analogous to in FIG. 1 shown cleaning tablet is constructed, but has a round basic shape, more precisely a cylindrical basic structure.
  • the layered structure is identical except for the form in Fig. 1 shown cleaning tablet.
  • FIG. 3 a cleaning tablet 1 according to a third embodiment is shown, which is analogous to in FIG. 1 shown cuboid cleaning tablet is constructed, however, has holes or recesses 30 in the upper (or in the lower) base.
  • the holes either pass completely through the cleaning tablet or protrude at least as far as the middle layer, ie until the first cleaning phase, in order to increase the surface of the exposed first cleaning phase and thus to increase the dissolution rate.
  • FIG. 4 a cleaning tablet 1 according to a fourth embodiment, analogous to the in FIG. 3 shown cleaning tablet is constructed, but has a round basic shape, more precisely a cylindrical basic structure.
  • the layered structure is identical except for the form in Fig. 3 shown cleaning tablet.
  • FIG. 5 is a plan view of a conveyor belt 50 shown, are transported to the cleaning tablets 1 in the arrow direction.
  • the two edges 20 are provided with a coating of a respective side of the conveyor belt arranged spray 41.
  • the cleaning tablet 1 is rotated by 90 °.
  • the two other edges 22 are sprayed with the spray 42, so that forms a water-soluble coating on all four edges.
  • the preceding detergent tablets described in detail are exemplary embodiments, they can be modified in a customary manner by a person skilled in the art to a large extent, without departing from the scope of the invention.
  • concrete embodiments of the cleaning tablets can be present in other forms and for other fields of application than those described here.
  • the formulations of the cleaning tablets by the skilled person in the sense of the above-described special embodiments are modified.
  • the upper and lower layers of a three-layer cleaning tablet can have different compositions, ie both outer layers, each with a second detergent phase, can have different chemical structures, as long as they both substantially do not contain any substantially unsuitable components are constructed only of contact suitable components.
  • the person skilled in the art also knows how to adapt the individual weight fractions to the corresponding requirements within the scope of the solution according to the invention.
  • the use of the indefinite article "on” or "one” does not exclude that the characteristics in question may also be present multiple times.

Claims (12)

  1. Tablette de détergent multiphases (1), comprenant
    - une première phase détergente avec un système alcalin d'un ou de plusieurs composants, dont au moins un composant inapte au contact contient de l'hydroxyde de sodium (soude caustique), et
    - une deuxième phase détergente, destinée à recouvrir la première phase détergente, la deuxième phase détergente ne contenant aucun composant inapte au contact, à savoir caustique, toxique ou hygroscopique, en option également aucun composant irritant,
    la tablette de détergent étant conçue sous la forme d'une tablette à au moins trois couches, avec une première couche (10) de la deuxième phase détergente, avec une deuxième, couche (12) intermédiare de la première phase détergente et avec une troisième couche (14) de la deuxième phase détergente,
    au moins une partie d'une zone de la première phase détergente inapte au contact, laquelle n'est pas recouverte par une couche composée de la deuxième phase détergente, notamment au moins une partie de l'arête (20, 21, 22) périphérique de la tablette de détergent, étant munie d'un film protecteur hydrosoluble.
  2. Tablette de détergent multiphases selon la revendication 1, la tablette de détergent présentant la forme d'un cylindre ou d'un parallélépipède.
  3. Tablette de détergent multiphases selon l'une quelconque des revendications précédentes, la première phase détergente contenant un métasilicate de sodium.
  4. Tablette de détergent multiphases selon l'une quelconque des revendications précédentes, la deuxième phase détergente comprenant un système alcalin composé d'un ou de plusieurs composants, lesquels sont choisis parmi la soude ou des di-silicates.
  5. Tablette de détergent multiphases selon l'une quelconque des revendications précédentes, la première et/ou la deuxième phases détergentes comprenant au moins un détergent supplémentaire, choisi dans le groupe comprenant les agents tensio-actifs ou agents complexants ioniques ou non ioniques, notamment les phosphates, les polyphosphates, les phosphonates, les polymères, les phyllosilicates, l'acide Na-méthylglycine-diacétique, l'acide polyépoxysuccinique et les gluconates.
  6. Tablette de détergent multiphases selon l'une quelconque des revendications précédentes, la première et/ou la deuxième phases détergentes comprenant additionnellement un ou plusieurs adjuvants et/ou excipients, notamment des agents liants, des auxiliaires de compression en tablette, des activateurs de décomposition, des retardateurs de dissolution, des agents retardants ou des additifs de glissement.
  7. Tablette de détergent multiphases selon l'une quelconque des revendications précédentes, la tablette de détergent comprenant des trous (30) et/ou des creux qui traversent une ou plusieurs couches comprenant la première et/ou la deuxième phases détergentes.
  8. Procédé de fabrication d'une tablette de détergent multiphases (1), comprenant l'étape de la fabrication d'une tablette de détergent à au moins trois couches avec une première phase détergente avec au moins un composant inapte au contact, lequel contient de l'hydroxyde de sodium (soude caustique) et avec une deuxième phase détergente sous la forme d'un recouvrement de la première phase détergente sur au moins deux côtés opposés de la première phase détergente, la deuxième phase détergente ne contenant aucun composant inapte au contact, à savoir caustique, toxique ou hygroscopique, en option également aucun composant irritant, et
    comprenant l'étape de l'application d'une composition de revêtement liquide sur au moins une face ou arête (20, 21, 22) de la tablette de détergent multiphases qui n'est pas recouverte de la deuxième phase détergente, pour former un film protecteur hydrosoluble.
  9. Procédé de fabrication selon la revendication 8, dans l'étape de l'application de la composition de revêtement, la tablette de détergent étant mise en rotation continue ou discontinue autour de son propre axe et à cet effet, la composition de revêtement étant appliquée sur les arêtes de la tablette de détergent.
  10. Procédé de fabrication selon la revendication 8 ou 9, comprenant additionnellement l'étape du refroidissement de la composition de revêtement liquide au moyen d'une soufflante d'air froid ou de l'évaporation du solvant au moyen d'une soufflante d'air froid ou chaud, pour solidifier la composition de revêtement.
  11. Procédé de fabrication selon l'une quelconque des revendications 8 à 10, comprenant en supplément l'étape consistant à prévoir des trous (30) et/ou des creux, qui traversent une ou plusieurs couches comprenant la première, respectivement la deuxième phase détergente.
  12. Utilisation d'une tablette de détergent multiphases selon l'une quelconque des revendications 1 à 7 pour le nettoyage d'appareil de cuisine, relevant notamment du domaine de la cuisine industrielle.
EP14747358.1A 2013-08-14 2014-07-31 Tablette de nettoyage à plusieurs phases Active EP3033411B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102013108814 2013-08-14
PCT/EP2014/066475 WO2015022196A1 (fr) 2013-08-14 2014-07-31 Tablette de nettoyage à plusieurs phases

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EP3033411A1 EP3033411A1 (fr) 2016-06-22
EP3033411B1 true EP3033411B1 (fr) 2019-12-04

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EP14747358.1A Active EP3033411B1 (fr) 2013-08-14 2014-07-31 Tablette de nettoyage à plusieurs phases
EP14747007.4A Withdrawn EP3033410A1 (fr) 2013-08-14 2014-07-31 Tablette détergente à plusieurs phases

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EP14747007.4A Withdrawn EP3033410A1 (fr) 2013-08-14 2014-07-31 Tablette détergente à plusieurs phases

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US (2) US20160186107A1 (fr)
EP (2) EP3033411B1 (fr)
DE (1) DE102014110847A1 (fr)
WO (2) WO2015022195A1 (fr)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3033411B1 (fr) * 2013-08-14 2019-12-04 Budich International GmbH Tablette de nettoyage à plusieurs phases
FR3021666B1 (fr) * 2014-05-28 2017-12-08 Eurotab Tablette multicouches a cavite, dispositif et procede de compaction d'une telle tablette
DE102015109017A1 (de) * 2015-06-08 2016-12-08 Budich International Gmbh Reinigungsmittel zur Reinigung von gewerblichen Gargeräten
DE102021203328A1 (de) * 2021-04-01 2022-10-06 Henkel Ag & Co. Kgaa Waschmittelportionseinheit

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Also Published As

Publication number Publication date
WO2015022195A1 (fr) 2015-02-19
WO2015022196A1 (fr) 2015-02-19
EP3033411A1 (fr) 2016-06-22
EP3033410A1 (fr) 2016-06-22
DE102014110847A1 (de) 2015-02-19
US20160186107A1 (en) 2016-06-30
US10053656B2 (en) 2018-08-21
US20160194585A1 (en) 2016-07-07

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