EP0933421A1 - Compact phosphate-free washing and cleaning tablets - Google Patents
Compact phosphate-free washing and cleaning tablets Download PDFInfo
- Publication number
- EP0933421A1 EP0933421A1 EP97811000A EP97811000A EP0933421A1 EP 0933421 A1 EP0933421 A1 EP 0933421A1 EP 97811000 A EP97811000 A EP 97811000A EP 97811000 A EP97811000 A EP 97811000A EP 0933421 A1 EP0933421 A1 EP 0933421A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- detergent
- cleaning agent
- carrier material
- tablet
- surfactants
- 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.)
- Granted
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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
- 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
- C11D17/00—Detergent materials or soaps characterised by their shape or physical properties
- C11D17/0034—Fixed on a solid conventional detergent ingredient
-
- 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
- C11D3/046—Salts
-
- 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
- C11D3/12—Water-insoluble compounds
- C11D3/124—Silicon containing, e.g. silica, silex, quartz or glass beads
- C11D3/1246—Silicates, e.g. diatomaceous earth
- C11D3/128—Aluminium silicates, e.g. zeolites
Definitions
- the present invention relates to a phosphate-free Detergent or cleaning agent tablet according to independent claim 1, as well as a method their manufacture according to independent claim 12.
- Detergent or cleaning agent in tablet form are enjoying increasing popularity because they allow the required amount of detergent or cleaning agent, compared to adding accordingly powdered agents, in a more defined unit quantity to dose.
- the use of a defined unit amount of detergent or cleaning agent also more manageable and safer because of a spill of the often aggressive substances avoided becomes.
- a dishwashing detergent in the form of a Multilayer tablet which is a bleach, a bleach activator, a silver / copper corrosion inhibitor as well as other common ingredients.
- the silver / copper anti-corrosion agent is not common in one layer together with the bleach and the bleach activator included.
- Tablets are convenient in terms of dosage, insofar as the tablets are actually dimensionally stable, quite satisfactory, but they are on the other Page so fragile and hygroscopic that a complete Individual packaging for each tablet is essential. If you dispense with individual packaging, they tend to unprotected tablets by bumping each other slowly to break up, so that ultimately only Fragments remain in a powder batch.
- the object of the present invention was in it a phosphate-free detergent or cleaning agent in single-phase or multi-phase tablet form provide, the tablet being one or more surfactants Contains surfactants and is so compact or solid that it doesn't have to be packed to prevent that it breaks over time.
- Under detergent or cleaning agent tablet is generally a tablet for cleaning purposes of all kinds to understand. Tablets are preferred for automatic washing and cleaning processes to understand, tablets being particularly preferred for dishwashers of the present Invention are concerned.
- porous carrier material should be procured in this way be that it is readily capable of the surfactant or to take up the surfactants.
- Preferred porous support materials are disilicates, sulfates, zeolites or Mixtures of the same. These are in the form of salts, whereby their alkali metal salts, e.g. the sodium or potassium salts are particularly preferred.
- Sodium disilicate (Na 6 Si 2 O 7 ), which belongs to the group of sorosilicates and is characterized by an excellent absorption capacity of surfactants, is very particularly preferred.
- Surfactants are interface-reducing substances because they have a hydrophilic and a hydrophobic Share.
- the use of surfactants in the detergent or cleaning agent tablet according to the invention is indispensable on the one hand because it is for the main washing action are responsible.
- On the other hand cause the surfactants to form parting surfaces on the individual areas of the grains in which they are incorporated should prevent a sintering effect when pressing tablets. So the surfactants basically a very negative influence on the tablet hardness.
- non-ionic, low-foam surfactants used for the tablet according to the invention.
- Very particularly preferred surfactants are ethylene oxide propylene oxide (EO-PO) adducts, such as the surfactants with the trade name Plurafac®.
- the surfactant or surfactants by means of a fluidizing Mixer, for example a fluid bed mixer or an eddy current granulator, incorporated into the carrier material, or added. Doing so should ensure an optimal "performance" the detergent or cleaning agent tablet Surfactant content based on a value of at least 2.5 wt .-% on the total weight of the tablet.
- a fluidizing Mixer for example a fluid bed mixer or an eddy current granulator
- the invention is distinguished Detergent or cleaning agent tablet by one Cover material.
- This coating material is on or around the powder grains consisting of carrier material / surfactant applied, so causes, essentially complete, sealing the powder grains and prevented thus the reduction of the tablet hardness by the Surfactant or the surfactants.
- the coating material (coating) is allowed do not displace the surfactant in the carrier material. It is there quite desirable if the coating material has properties which are suitable for washing or Cleaning effect of the resulting tablet is beneficial is.
- Coating materials which are "co-builders".
- the so-called “Builder” themselves are builders that are used in Washing process play a central role. they wear not only through specific effects themselves on the washing process at, but also influence in crucial Way the effect of other detergent components, for example of surfactants or bleaches. You do this for example through their possible binding capacity of multivalent ions, or as ion transport or in textile washing processes by adsorption of molecular disperse Substances or heterocoagulation with pigments to prevent textile graying.
- coating material are water glass, soda or homo- and copolymers of Polycarboxylic acids, especially acrylic acid-maleic acid copolymers or a mixture thereof, where these function as a co-builder. Most notably the acrylic acid-maleic acid copolymer is preferred as a co-builder-compatible covering material.
- Detergent or cleaning agent tablet 15-30% of the porous carrier material are contained.
- the surfactant content is preferably between 2.5 to 5.0%.
- the proportion of the coating material is preferably between 1-6%.
- the detergent or cleaning agent tablet Surfactant content based on a value of at least 2.5 wt .-% on the total weight.
- the detergent or cleaning agent tablet according to the invention can also do other components contain, such as a silver or Copper corrosion protection, enzymes, perfume compounds, Bleaches, stabilizers, activators, brighteners, Foam inhibitors, corrosion inhibitors, dyes, Adjusting agents and other auxiliaries and fillers.
- a silver or Copper corrosion protection such as a silver or Copper corrosion protection, enzymes, perfume compounds, Bleaches, stabilizers, activators, brighteners, Foam inhibitors, corrosion inhibitors, dyes, Adjusting agents and other auxiliaries and fillers.
- Another aspect of the present invention consists in a process for producing a detergent or cleaning agent tablet.
- the Incorporation of the surfactant or surfactants into the porous Carrier material by spraying the surfactant or surfactants in the carrier material with or in an air stream and carried out at a temperature of about 15 to 45 ° C.
- the incorporation of the surfactant or of the surfactants in the porous carrier material by means of a fluidizing mixer performed.
- the resulting soaked is applied to the carrier material Powder in another preferred embodiment for between 20 and 50 minutes at one temperature of between 15 and 35 ° C, preferably about 30 ° C mixed so as to ensure complete diffusion of the To effect surfactant or the surfactants in the carrier material.
- the coating is preferably by means of fluidized bed granulation applied to the powder grains.
- the procedure preferably carried out so that the coated Powder grains continuously at temperatures of between about 40-60 ° C to be dried.
- the coating applied to the powder grains. It is during about 50 minutes a 70 kg 20% solution of an acrylic acid-maleic acid copolymer sprayed in the eddy current granulator and continuously at a temperature of around 55 ° C dried. Small, coated layers form during this process Powdered grains, which have a medium grain size of about 0.5 mm. The resulting powder is essentially dust free.
- the product is at 50 ° C a residual moisture content of ⁇ 5% dried and discharged.
- the next step is to use powder a mixer with other ingredients (trisodium citrate, Sodium perborate, TAED, enzymes, soda) and the powder is placed in a press where it becomes a tablet is pressed.
- a mixer with other ingredients (trisodium citrate, Sodium perborate, TAED, enzymes, soda) and the powder is placed in a press where it becomes a tablet is pressed.
- a two-phase detergent tablet For the production of a two-phase detergent tablet are two different powder granules in a first step prepared.
- This is a first component or powder mixture prepared according to Example 1.
- the second component or powder mixture corresponds to in relation to the proportions of the first component, except that there is no benzotriazole for it but 0.2 kg of a blue dye.
- the powder mixtures obtained and dried are mixed in a mixer and then the powder of the first layer by means of a dosing aid, e.g. a paddle dispenser into which lower stamp filled down.
- a dosing aid e.g. a paddle dispenser into which lower stamp filled down.
- the powder With the upper stamp the powder is then compressed slightly so that there is still enough rough surface to work with to sinter the second component or powder mixture.
- the lower punch moves back to the filling position, the second phase is filled and then with high Force pressed.
- the lower stamp is raised, so the tablet is guided from the turntable at the scraper can be.
- Typical composition of a cleaning tablet Prefabricated Granut as described in Examples 1 and 2 15-40% Trisodium citrate 30-50% Sodium perborate 5-15% Acrylic acid-maleic acid copolymer 1-5% TAED 2-7% Enzymes 1-3% soda 2-7%
Abstract
Description
Die vorliegende Erfindung betrifft eine phosphatfreie Waschmittel- bzw. Reinigungsmitteltablette gemäss dem unabhängigen Anspruch 1, sowie ein Verfahren zu deren Herstellung gemäss dem unabhängigen Anspruch 12.The present invention relates to a phosphate-free Detergent or cleaning agent tablet according to independent claim 1, as well as a method their manufacture according to independent claim 12.
Waschmittel bzw. Reinigungsmittel in Tablettenform erfreuen sich einer steigenden Beliebtheit, weil sie es erlauben die erforderliche Waschmittel- bzw. Reinigungsmittelmenge, im Vergleich zur Zugabe von entsprechend pulverförmigen Mitteln, in einer definierteren Einheitsmenge zu dosieren. Ausserdem ist die Verwendung einer definierten Einheitsmenge an Waschmittel- bzw. Reinigungsmittel auch handlicher und sicherer, da ein Verschütten der vielfach aggressiven Substanzen vermieden wird.Detergent or cleaning agent in tablet form are enjoying increasing popularity because they allow the required amount of detergent or cleaning agent, compared to adding accordingly powdered agents, in a more defined unit quantity to dose. In addition, the use of a defined unit amount of detergent or cleaning agent also more manageable and safer because of a spill of the often aggressive substances avoided becomes.
Insbesondere bei Geschirrspülmitteln haben sich in den letzten Jahren eine Reihe von phosphatfreien Reinigungsmitteltabletten auf dem Markt etabliert, wobei sich ganz besonders diejenigen der sogenannten zweiten Generation besonders durchzusetzen scheinen. Diese werden nicht mehr in den Besteckkorb gelegt, sondern im Dosierfach deponiert und dort bei der Hauptwäsche freigesetzt. Das Dosierfach in modernen Spülmaschinen ist daher recht-eckig (26 x 36 mm) ausgelegt, so dass eine Tablette bequem eingelegt werden kann.Especially with dishwashing detergents has become a number of phosphate-free in recent years Detergent tablets established on the market, whereby especially those of the so-called second Generation seem to prevail. These will no longer placed in the cutlery basket, but in the metering compartment deposited and released there during the main wash. The dosing compartment in modern dishwashers is therefore rectangular (26 x 36 mm) designed to make a tablet convenient can be inserted.
In der internationalen Anmeldung WO 97/03177 wird beispielsweise ein Geschirrspülmittel in Form einer Mehrschichttablette beschrieben, welche ein Bleichmittel, einen Bleichaktivator, ein Silber/Kupferkorrosionsschutzmittel sowie andere übliche Bestandteile enthält. Dabei ist das Silber/Kupferkorrosionsschutzmittel nicht gemeinsam in einer Schicht zusammen mit dem Bleichmittel und dem Bleichaktivator enthalten. In international application WO 97/03177 For example, a dishwashing detergent in the form of a Multilayer tablet described which is a bleach, a bleach activator, a silver / copper corrosion inhibitor as well as other common ingredients. Here the silver / copper anti-corrosion agent is not common in one layer together with the bleach and the bleach activator included.
Die gegenwärtig auf dem Markt vertriebenen Tabletten sind in bezug auf ihre Dosierungshandlichkeit, insoweit die Tabletten tatsächlich formbeständig sind, durchaus befriedigend, aber sie sind eben auf der anderen Seite so brüchig und hygroskopisch, dass eine vollständige Einzelverpackung für jede Tablette unerlässlich ist. Verzichtet man auf eine Einzelverpackung tendieren die ungeschützten Tabletten durch Stösse untereinander langsam in die Brüche zu gehen, so dass letztendlich nur noch Bruchstücke in einem Pulversatz übrig bleiben.The ones currently on the market Tablets are convenient in terms of dosage, insofar as the tablets are actually dimensionally stable, quite satisfactory, but they are on the other Page so fragile and hygroscopic that a complete Individual packaging for each tablet is essential. If you dispense with individual packaging, they tend to unprotected tablets by bumping each other slowly to break up, so that ultimately only Fragments remain in a powder batch.
Verantwortlich für die Brüchigkeit ist im wesentlichen das Tensid bzw. die Tenside, welche die Tablettenhärte verringern und damit beim Fressen den Sintereffekt verhindern. Diese Brüchigkeit und Instabilität wird ausserdem noch durch die Hygroskopie der in den Tabletten enthaltenden Stoffen verstärkt : Die Hygroskopie bewirkt, dass mit der Zeit mehr oder weniger Luftfeuchtigkeit von der Tablette aufgenommen wird, die Tablette dadurch erheblich an Volumen gewinnt und so die Tablettenhärte weiter herabsetzt.Responsibility for the fragility is in essentially the surfactant or surfactants, which the tablet hardness reduce and thus the sintering effect when eating prevent. This fragility and instability is also due to the hygroscopy of the tablets containing substances reinforced: hygroscopy causes more or less humidity over time is taken up by the tablet, the tablet thereby gaining considerable volume and thus the tablet hardness further reduced.
Infolgedessen werden die gegenwärtig vertriebenen Waschmittel- bzw. Reinigungsmittel-Tabletten in individueller Verpackung angeboten und müssen zu deren Verwendung vom Benutzer bzw. Verwender zuerst wieder ausgepackt werden, bevor sie in das Dosierfach gelegt werden können. Folglich sind die gegenwärtig vertriebenen Waschmittel- bzw. Reinigungsmittel-Tabletten infolge ihrer Brüchigkeit und Hygroskopie und somit in bezug auf ihre Gesamthandlichkeit letztendlich nicht befriedigend.As a result, the currently distributed Individual detergent or cleaning agent tablets Packaging offered and need to use them first unpacked by the user before they are placed in the dispenser can. Consequently, the currently sold detergent tablets are due to their Fragility and hygroscopy and thus in relation to their Overall handiness is ultimately unsatisfactory.
Die Aufgabe der vorliegenden Erfindung bestand darin ein phosphatfreies Waschmittel bzw. Reinigungsmittel in einphasiger oder mehrphasiger Tablettenform bereitzustellen, wobei die Tablette ein Tensid oder mehrere Tenside enthält und die so kompakt bzw. fest ist, dass sie nicht verpackt werden muss, um zu verhindern, dass sie mit der Zeit in die Brüche geht.The object of the present invention was in it a phosphate-free detergent or cleaning agent in single-phase or multi-phase tablet form provide, the tablet being one or more surfactants Contains surfactants and is so compact or solid that it doesn't have to be packed to prevent that it breaks over time.
Es war ausserdem ein Ziel der vorliegenden Erfindung ein Verfahren zur Herstellung von kompakten und stabilen Waschmittel-bzw. Reinigungsmittel-Tabletten bereitzustellen, welche nicht einzeln verpackt werden müssen, um zu verhindern, dass sie mit der Zeit in die Brüche geht.It was also a goal of the present Invention a method for the production of compact and stable detergent or. To provide detergent tablets, which do not have to be packed individually, to prevent them from getting into the Breaks goes.
Die oben genannten Ziele werden gemäss den unabhängigen Ansprüchen gelöst.The above goals are according to the independent claims solved.
Die erfindungsgemässe Waschmittel-bzw. Reinigungsmittel-Tablette
wird aus Pulverkörnern durch Zusammenpressen
erhalten, wobei die Pulverkörner der Waschmittel- bzw. Reinigungsmittel-Tablette
umfassen.
include.
Unter Waschmittel- bzw. ReinigungsmittelTablette ist generell eine Tablette für Reinigungszwecke aller Art zu verstehen. Bevorzugt sind dabei Tabletten für maschinell durchgeführte Wasch- bzw. Reinigungsvorgänge zu vestehen, wobei ganz besonders bevorzugt Tabletten für Geschirrspülmaschinen von der vorliegenden Erfindung betroffen sind.Under detergent or cleaning agent tablet is generally a tablet for cleaning purposes of all kinds to understand. Tablets are preferred for automatic washing and cleaning processes to understand, tablets being particularly preferred for dishwashers of the present Invention are concerned.
Das poröse Trägermaterial sollte dabei so beschaffen sein, dass es ohne weiteres in Lage ist das Tensid bzw. die Tenside aufzunehmen. Bevorzugte poröse Trägermaterialien sind Disilikate, Sulfate, Zeolithe oder Mischungen derselben. Diese liegen als Salze vor, wobei deren Alkalimetallsalze, z.B. die Natrium oder Kaliumsalze besonders bevorzugt sind.The porous carrier material should be procured in this way be that it is readily capable of the surfactant or to take up the surfactants. Preferred porous support materials are disilicates, sulfates, zeolites or Mixtures of the same. These are in the form of salts, whereby their alkali metal salts, e.g. the sodium or potassium salts are particularly preferred.
Ganz besonders bevorzugt ist das Natriumdisilikat (Na6Si2O7), welches zu der Gruppe der Sorosilikate gehört und sich durch eine hervorragende Aufnahmefähigkeit von Tensiden auszeichnet.Sodium disilicate (Na 6 Si 2 O 7 ), which belongs to the group of sorosilicates and is characterized by an excellent absorption capacity of surfactants, is very particularly preferred.
Tenside sind Grenzflächen herabsetzende Substanzen, weil sie über einen hydrophilen und einen hydrophoben Anteil aufweisen. Die Verwendung von Tensiden in den erfindungsgemässen Waschmittel- bzw. Reinigungsmittel-Tablette ist einerseits unabdingbar, weil diese für die Hauptwaschwirkung verantwortlich sind. Andererseits bewirken die Tenside die Bildung von Trennflächen auf den einzelnen Flächen der Körner, in welche diese aufgenommen werden sollen und verhindern damit einen Sintereffekt beim Pressen von Tabletten. Damit haben die Tenside grundsätzlich einen ausgesprochen negativen Einfluss auf die Tablettenhärte.Surfactants are interface-reducing substances because they have a hydrophilic and a hydrophobic Share. The use of surfactants in the detergent or cleaning agent tablet according to the invention is indispensable on the one hand because it is for the main washing action are responsible. On the other hand cause the surfactants to form parting surfaces on the individual areas of the grains in which they are incorporated should prevent a sintering effect when pressing tablets. So the surfactants basically a very negative influence on the tablet hardness.
Für die erfindungsgemässe Tablette werden bevorzugt nicht-ionogene, schaumarme Tenside verwendet. Ganz besonders bevorzugte Tenside sind Ethylenoxid-Propylenoxid (EO-PO)- Addukte, wie beispielsweise die Tenside mit der Handelsbezeichnung Plurafac®.For the tablet according to the invention preferably non-ionic, low-foam surfactants used. Very particularly preferred surfactants are ethylene oxide propylene oxide (EO-PO) adducts, such as the surfactants with the trade name Plurafac®.
In einer bevorzugten Ausführungsform werden das Tensid bzw. die Tenside mittels eines fluidisierenden Mischers, beispielsweise einem Fliessbettmischer oder einem Wirbelstromgranulator, in das Trägermaterial eingearbeitet, bzw. aufgenommen. Dabei sollte zur Sicherstellung einer optimalen "Performance" (d.h. Leistungsfähigkeit) der Waschmittel- bzw. Reinigungsmittel-Tablette der Tensidanteil einen Wert von mindestens 2,5 Gew.-% bezogen auf das Gesamtgewicht der Tablette aufweisen.In a preferred embodiment the surfactant or surfactants by means of a fluidizing Mixer, for example a fluid bed mixer or an eddy current granulator, incorporated into the carrier material, or added. Doing so should ensure an optimal "performance" the detergent or cleaning agent tablet Surfactant content based on a value of at least 2.5 wt .-% on the total weight of the tablet.
Ausserdem zeichnet sich die erfindungsgemässe Waschmittel- bzw. Reinigungsmittel-Tablette durch ein Überzugsmaterial aus. Dieses Überzugsmaterial wird auf bzw. um die Pulverkörner bestehend aus Trägermaterial/Tensid aufgebracht, bewirkt so eine, im wesentlichen vollständige, Versiegelung der Pulverkörner und verhindert somit die Herabsetzung der Tablettenhärte durch das Tensid bzw. die Tenside.In addition, the invention is distinguished Detergent or cleaning agent tablet by one Cover material. This coating material is on or around the powder grains consisting of carrier material / surfactant applied, so causes, essentially complete, sealing the powder grains and prevented thus the reduction of the tablet hardness by the Surfactant or the surfactants.
Das Überzugsmaterial (coating) darf dabei nicht das Tensid im Trägermaterial verdrängen Es ist dabei durchaus erwünscht, wenn das Überzugsmaterial (coating) über Eigenschaften verfügt, welche für die Wasch- bzw. Reinigungswirkung der resultierende Tablette zuträglich ist.The coating material (coating) is allowed do not displace the surfactant in the carrier material. It is there quite desirable if the coating material has properties which are suitable for washing or Cleaning effect of the resulting tablet is beneficial is.
Besonders bevorzugt verwendet werden daher Überzugsmaterialen, welche "Co-Builder" sind. Die sogenannten "Builder" selbst sind Gerüststoffe, welche beim Waschprozess eine zentrale Rolle übernehmen. Sie tragen nicht nur durch spezifische Effekte selbst zum Waschgeschehen bei, sondern beeinflussen auch in entscheidender Weise die Wirkung anderer Waschmittelkomponenten, beispielsweise der Tenside oder Bleichmittel. Sie tun dies beispielsweise durch ihr allfälliges Bindevermögen von mehrwertigen Ionen, oder als Ionentransportmittel oder bei Textilwaschvorgängen durch Adsorption von molekulardispersen Substanzen bzw. Heterokoagulation mit Pigmenten zur Verhinderung von Textilvergrauung.Are therefore used with particular preference Coating materials which are "co-builders". The so-called "Builder" themselves are builders that are used in Washing process play a central role. they wear not only through specific effects themselves on the washing process at, but also influence in crucial Way the effect of other detergent components, for example of surfactants or bleaches. You do this for example through their possible binding capacity of multivalent ions, or as ion transport or in textile washing processes by adsorption of molecular disperse Substances or heterocoagulation with pigments to prevent textile graying.
Als besonders bevorzugte Überzugsmaterialien werden Wasserglas, Soda oder Homo- und Copolymere von Polycarbonsäuren, insbesondere Acrylsäure-Maleinsäure-Copolymere oder eine Mischung derselben verwendet, wobei diese die Funktion eines Co-Builders ausrnben. Ganz besonders bevorzugt ist das Acrylsäure-Maleinsäure-Copolymer als Co-Builder-fähiges Überzugsmaterial.As a particularly preferred coating material are water glass, soda or homo- and copolymers of Polycarboxylic acids, especially acrylic acid-maleic acid copolymers or a mixture thereof, where these function as a co-builder. Most notably the acrylic acid-maleic acid copolymer is preferred as a co-builder-compatible covering material.
In einer bevorzugten Ausführungsform der erfindungsgemässen Waschmittel- bzw. Reinigungsmittel-Tablette sind 15-30 % des porösen Trägermaterials enthalten.In a preferred embodiment of the invention Detergent or cleaning agent tablet 15-30% of the porous carrier material are contained.
Der Gehalt an Tensiden liegt bevorzugt bei zwischen 2,5 bis 5,0 %. The surfactant content is preferably between 2.5 to 5.0%.
Der Anteil des Überzugsmaterials liegt vorzugsweise zwischen 1-6 %.The proportion of the coating material is preferably between 1-6%.
Wie bereits oben erwähnt, sollte zur Sicherstellung einer optimalen "Performance" (Leistungsfähigkeit) der Waschmittel- bzw. Reinigungsmittel-Tablette der Tensidanteil einen Wert von mindestens 2,5 Gew.-% bezogen auf das Gesamtgewicht aufweisen.As mentioned above, should be to ensure an optimal "performance" the detergent or cleaning agent tablet Surfactant content based on a value of at least 2.5 wt .-% on the total weight.
Die erfindungsgemässe Waschmittel- bzw. Reinigungsmittel-Tablette kann ausserdem noch weitere Komponenten enthalten, wie beispielsweise einen Silber bzw. Kupfer-Korrosionsschutz, Enzyme, Parfumverbindungen, Bleichmittel, Stabilisatoren, Aktivatoren, Aufheller, Schauminhibitoren, Korrosionsinhibitoren, Farbstoffe, Stellmittel und weitere Hilfs- und Füllstoffe.The detergent or cleaning agent tablet according to the invention can also do other components contain, such as a silver or Copper corrosion protection, enzymes, perfume compounds, Bleaches, stabilizers, activators, brighteners, Foam inhibitors, corrosion inhibitors, dyes, Adjusting agents and other auxiliaries and fillers.
Ein weiter Aspekt der vorliegenden Erfindung besteht in einem Verfahren zur Herstellung einer Waschmittel- bzw. Reinigungsmittel-Tablette.Another aspect of the present invention consists in a process for producing a detergent or cleaning agent tablet.
Das erfindungsgemässe Verfahren umfasst dabei
die folgenden Schritte:
In einer bevorzugten Ausführungsform wird das Einarbeiten des Tensids bzw. der Tenside in das poröse Trägermaterial durch Einsprühen des Tensids bzw. der Tenside in das Trägermaterial mit bzw. in einem Luftstrom und bei einer Temperatur von etwa 15 bis 45°C durchgeführt. Vorzugsweise wird das Einarbeiten des Tensids bzw. der Tenside in das poröse Trägermaterial mittels eines fluidisierenden Mischers durchgeführt.In a preferred embodiment, the Incorporation of the surfactant or surfactants into the porous Carrier material by spraying the surfactant or surfactants in the carrier material with or in an air stream and carried out at a temperature of about 15 to 45 ° C. The incorporation of the surfactant or of the surfactants in the porous carrier material by means of a fluidizing mixer performed.
Nach dem Einsprühen des Tensids bzw. der Tenside auf das Trägermaterial wird das entstandene vollgesogene Pulver in einer anderen bevorzugten Ausführungsform während zwischen 20 und 50 Minuten bei einer Temperatur von zwischen 15 und 35°C, vorzugsweise etwa 30°C weitergemischt, um so eine vollständige Diffusion des Tensids bzw. der Tenside in das Trägermaterial zu bewirken. Vorzugsweise wird der Uberzug mittels Wirbelschichtgranulation auf die Pulverkörner appliziert.After spraying the surfactant or surfactants the resulting soaked is applied to the carrier material Powder in another preferred embodiment for between 20 and 50 minutes at one temperature of between 15 and 35 ° C, preferably about 30 ° C mixed so as to ensure complete diffusion of the To effect surfactant or the surfactants in the carrier material. The coating is preferably by means of fluidized bed granulation applied to the powder grains.
Ausserdem ist es in der Regel erwünscht, dass in den Rohmaterialien vorhandene und im Verfahren freigesetzte Feuchtigkeit entfernt wird. Daher wird das Verfahren bevorzugt so durchgeführt, dass die beschichteten Pulverkörner fortlaufend bei Temperaturen von zwischen etwa 40-60°C getrocknet werden.In addition, it is usually desirable that existing in the raw materials and released in the process Moisture is removed. Hence the procedure preferably carried out so that the coated Powder grains continuously at temperatures of between about 40-60 ° C to be dried.
Wenn schlussendlich das erhaltene Granulat mit dem fertigen Überzug erhalten wird, wird dieses vorzugsweise auf einen Restfeuchtigkeitsgehalt von <5 Gew.-% getrocknet.When finally the granules obtained is obtained with the finished coating, this is preferred to a residual moisture content of <5% by weight dried.
Ein letzter Aspekt der vorliegenden Erfindung
besteht in einer Waschmittel- bzw. Reinigungsmittel-Tablette,
welche nach dem oben beschriebenen Verfahren erhältlich
ist, d.h. welches durch die folgenden Verfahrensschritte
erhältlich ist :
Im folgenden soll nun die vorliegende Erfindung anhand von zwei Beispielen verdeutlicht werden, wobei die Beispiele nicht als beschränkend auf den Schutzbereich anzusehen sind.The present invention will now be described below can be illustrated using two examples, whereby the examples are not intended to limit the scope of protection are to be seen.
200 kg Natriumdisilikat und 2,5 kg Benzotriazol als Silberschutz sowie 20 kg Natriumsulfat werden vorgelegt und fluidisierend gemischt. Ausserdem wird das Gemisch für die Tensidaufnahme auf 30°C Produkttemperatur vorgewärmt. Danach wird das Pulver mit 24 kg der zuvor gemischten Tensid/Parfüm-Lösung während etwa 20 Minuten besprüht.200 kg sodium disilicate and 2.5 kg benzotriazole as silver protection and 20 kg of sodium sulfate are presented and mixed fluidizing. In addition, the mixture for the surfactant intake preheated to 30 ° C product temperature. Then the powder with 24 kg of the previously mixed Sprayed surfactant / perfume solution for about 20 minutes.
Anschliessend wird das besprühte Granulat noch während 30 Minuten bei 30°C weitergewirbelt, um so der Tensidmischung genügend Zeit zu geben ins Innere der Pulverkörner einzudringen bzw. zu diffundieren.Then the sprayed granulate whirled at 30 ° C for 30 minutes, all the more to give the surfactant mixture enough time inside Powder grains penetrate or diffuse.
Nach der vollständigen Diffision der Tensidmischung in die poröse Pulverpartikel, wird der Überzug auf die Pulverkörner appliziert. Dabei wird während etwa 50 Minuten eine 70 kg 20%-ige Lösung eines AcrylsäureMaleinsäure-Copolymers im Wirbelstromgranulator besprüht und dabei fortlaufend bei einer Temperatur von etwa 55°C getrocknet. Es bilden sich bei diesem Vorgang kleine beschichtete Pulverkörner, welche eine mittlere Korngrösse von etwa 0,5 mm aufweisen. Das resultierende Pulver ist im wesentlichen staubfrei. After complete diffusion of the surfactant mixture into the porous powder particle, the coating applied to the powder grains. It is during about 50 minutes a 70 kg 20% solution of an acrylic acid-maleic acid copolymer sprayed in the eddy current granulator and continuously at a temperature of around 55 ° C dried. Small, coated layers form during this process Powdered grains, which have a medium grain size of about 0.5 mm. The resulting powder is essentially dust free.
Schliesslich wird das Produkt bei 50°C auf eine Restfeuchtigkeit von <5% getrocknet und ausgetragen.Finally, the product is at 50 ° C a residual moisture content of <5% dried and discharged.
Im nächsten Schritt wird das Pulver mittels eines Mischers mit weiteren Inhaltsstoffen gemischt (Trinatriumcitrat, Natriumperborat, TAED, Enzyme, Soda) und das Pulver in eine Presse eingefüllt, wo es zu einer Tablette gepresst wird.The next step is to use powder a mixer with other ingredients (trisodium citrate, Sodium perborate, TAED, enzymes, soda) and the powder is placed in a press where it becomes a tablet is pressed.
Für die Herstellung einer Zweiphasen-Spülmitteltablette werden in einem ersten Schritt zwei verschiedene Pulvergranulate zubereitet. Dabei wird eine erste Komponente bzw. Pulvermischung gemäss dem Beispiel 1 hergestellt. Die zweite Komponente bzw. Pulvermischung entspricht in bezug auf die Mengenverhältnissen der ersten Komponente, mit Ausnahme, dass kein Benzotriazol vorhanden ist, dafür aber 0,2 kg eines blauen Farbstoffs.For the production of a two-phase detergent tablet are two different powder granules in a first step prepared. This is a first component or powder mixture prepared according to Example 1. The second component or powder mixture corresponds to in relation to the proportions of the first component, except that there is no benzotriazole for it but 0.2 kg of a blue dye.
Die fertig erhaltenen und getrockneten Pulver-Mischungen werden in einem Mischer fertig gemischt und anschliessend wird das Pulver der ersten Schicht mittels einer Dosierhilfe, z.B. einem Paddeldosierer, in den nach unten gezogenen Unterstempel gefüllt. Mit dem Oberstempel wird das Pulver dann leicht komprimiert, so dass noch genügend rauhe Oberfläche vorhanden ist, um mit der zweiten Komonente bzw. Pulvermischung zu versintern. Danach fährt der Unterstempel wieder in die Füllposition, die zweite Phase wird gefüllt und anschliessend mit hoher Kraft verpresst. Der Unterstempel wird hochgefahren, damit beim Abstreifer die Tablette vom Drehteller geführt werden kann. The powder mixtures obtained and dried are mixed in a mixer and then the powder of the first layer by means of a dosing aid, e.g. a paddle dispenser into which lower stamp filled down. With the upper stamp the powder is then compressed slightly so that there is still enough rough surface to work with to sinter the second component or powder mixture. After that the lower punch moves back to the filling position, the second phase is filled and then with high Force pressed. The lower stamp is raised, so the tablet is guided from the turntable at the scraper can be.
Typische Zusammensetzung einer Reinigungstablette
Claims (18)
umfassen.
include.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE59712770T DE59712770D1 (en) | 1997-12-18 | 1997-12-18 | Compact, phosphate-free detergent tablet |
EP97811000A EP0933421B1 (en) | 1997-12-18 | 1997-12-18 | Compact phosphate-free cleaning tablets |
AT97811000T ATE346133T1 (en) | 1997-12-18 | 1997-12-18 | COMPACT, PHOSPHATE-FREE CLEANING TABLET |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP97811000A EP0933421B1 (en) | 1997-12-18 | 1997-12-18 | Compact phosphate-free cleaning tablets |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0933421A1 true EP0933421A1 (en) | 1999-08-04 |
EP0933421B1 EP0933421B1 (en) | 2006-11-22 |
Family
ID=8230532
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP97811000A Expired - Lifetime EP0933421B1 (en) | 1997-12-18 | 1997-12-18 | Compact phosphate-free cleaning tablets |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0933421B1 (en) |
AT (1) | ATE346133T1 (en) |
DE (1) | DE59712770D1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6521581B1 (en) | 2001-12-14 | 2003-02-18 | Unilever Home & Personal Care Usa, Division Of Conopco, Inc. | Water-soluble package with multiple distinctly colored layers of liquid laundry detergent |
EP1842900A1 (en) * | 2004-04-03 | 2007-10-10 | Henkel Kommanditgesellschaft auf Aktien | Method for manufacturing granulates and their use in washing and/or cleaning agents |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0466484A2 (en) * | 1990-07-13 | 1992-01-15 | Unilever Plc | Detergent compositions |
EP0711828A2 (en) * | 1994-11-14 | 1996-05-15 | Unilever Plc | Detergent compositions |
WO1997022685A1 (en) * | 1995-12-20 | 1997-06-26 | Unilever Plc | A process for preparing a granular detergent |
DE19601841A1 (en) * | 1996-01-19 | 1997-07-24 | Henkel Kgaa | Nonionic surfactant rich granulate containing oil absorption agent, useful for detergents |
DE19606765A1 (en) * | 1996-02-23 | 1997-08-28 | Henkel Kgaa | Process for the production of dishwasher tablets |
-
1997
- 1997-12-18 DE DE59712770T patent/DE59712770D1/en not_active Expired - Fee Related
- 1997-12-18 EP EP97811000A patent/EP0933421B1/en not_active Expired - Lifetime
- 1997-12-18 AT AT97811000T patent/ATE346133T1/en not_active IP Right Cessation
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0466484A2 (en) * | 1990-07-13 | 1992-01-15 | Unilever Plc | Detergent compositions |
EP0711828A2 (en) * | 1994-11-14 | 1996-05-15 | Unilever Plc | Detergent compositions |
WO1997022685A1 (en) * | 1995-12-20 | 1997-06-26 | Unilever Plc | A process for preparing a granular detergent |
DE19601841A1 (en) * | 1996-01-19 | 1997-07-24 | Henkel Kgaa | Nonionic surfactant rich granulate containing oil absorption agent, useful for detergents |
DE19606765A1 (en) * | 1996-02-23 | 1997-08-28 | Henkel Kgaa | Process for the production of dishwasher tablets |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6521581B1 (en) | 2001-12-14 | 2003-02-18 | Unilever Home & Personal Care Usa, Division Of Conopco, Inc. | Water-soluble package with multiple distinctly colored layers of liquid laundry detergent |
EP1842900A1 (en) * | 2004-04-03 | 2007-10-10 | Henkel Kommanditgesellschaft auf Aktien | Method for manufacturing granulates and their use in washing and/or cleaning agents |
Also Published As
Publication number | Publication date |
---|---|
EP0933421B1 (en) | 2006-11-22 |
DE59712770D1 (en) | 2007-01-04 |
ATE346133T1 (en) | 2006-12-15 |
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