EP0385374B1 - Storage-stable brightener composition - Google Patents

Storage-stable brightener composition Download PDF

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Publication number
EP0385374B1
EP0385374B1 EP90103750A EP90103750A EP0385374B1 EP 0385374 B1 EP0385374 B1 EP 0385374B1 EP 90103750 A EP90103750 A EP 90103750A EP 90103750 A EP90103750 A EP 90103750A EP 0385374 B1 EP0385374 B1 EP 0385374B1
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EP
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Prior art keywords
storage
whitener formulation
formulation according
stable
weight
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German (de)
French (fr)
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EP0385374B2 (en
EP0385374A1 (en
Inventor
Werner Dr. Fringeli
Josef Zelger
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BASF Schweiz AG
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Ciba Geigy AG
Ciba Spezialitaetenchemie Holding AG
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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
    • C11D3/40—Dyes ; Pigments
    • C11D3/42—Brightening agents ; Blueing agents
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06L—DRY-CLEANING, WASHING OR BLEACHING FIBRES, FILAMENTS, THREADS, YARNS, FABRICS, FEATHERS OR MADE-UP FIBROUS GOODS; BLEACHING LEATHER OR FURS
    • D06L4/00—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs
    • D06L4/60—Optical bleaching or brightening
    • D06L4/614—Optical bleaching or brightening in aqueous solvents
    • D06L4/621—Optical bleaching or brightening in aqueous solvents with anionic brighteners
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06L—DRY-CLEANING, WASHING OR BLEACHING FIBRES, FILAMENTS, THREADS, YARNS, FABRICS, FEATHERS OR MADE-UP FIBROUS GOODS; BLEACHING LEATHER OR FURS
    • D06L4/00—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs
    • D06L4/60—Optical bleaching or brightening
    • D06L4/664—Preparations of optical brighteners; Optical brighteners in aerosol form; Physical treatment of optical brighteners

Definitions

  • the present invention relates to storage-stable, aqueous, concentrated brightener formulations and a process for their preparation and their use.
  • optical brighteners are preferably marketed in the form of aqueous solutions.
  • the moist filter cake or the dry powder is slurried with water.
  • This suspension is mixed with dispersants and thickeners to increase homogeneity, wettability and stability.
  • An electrolyte is often added to these auxiliaries.
  • the additives used up to now could not prevent sedimentation of the brighteners over a longer period of time.
  • Such formulations preferably contain anionic optical brighteners which contain at least one sulfonic acid residue.
  • they are brighteners of the triazine series of the formula: wherein X and Y, which may be the same or different and represent a secondary or tertiary amine radical or a mono- or di-substituted alkoxy group, and M represents a hydrogen atom or a salt-forming cation.
  • Optical brighteners from the distilbene range can also be used.
  • A sulfonic acid residue, hydrogen, C 1 -C 4 alkyl, C 1 -C 4 alkoxy or halogen
  • Particularly preferred compounds are compounds of the formula where A, B and n have the above meaning and M is a salt-forming cation.
  • halogens are fluorine, chlorine and bromine, but especially chlorine.
  • C 1 -C 4 alkyl radicals come straight and branched alkyl radicals such as the methyl, ethyl, n- and iso-propyl, n-, sec- and tert-butyl radicals into consideration.
  • These C 1 -C 4 alkyl radicals can in turn be substituted with, for example, aryl (phenyl, naphthyl), C 1 -C 4 alkyl, C 1 -C 4 alkoxy, OH or CN groups.
  • Salt-forming cations M are, for example, alkali metal, ammonium or amine salt ions.
  • Preferred amine salt ions are those of the formula H + NR 8 R 9 R 10 in which Rg, R 9 and R 10 independently of one another are hydrogen, alkyl, alkenyl, hydroxyalkyl, cyanoalkyl, haloalkyl or phenylalkyl or in which R 8 and Rg together are the addition represent a 5-7-membered saturated nitrogen heterocycle which may additionally contain a nitrogen or oxygen atom as a ring member, for example a piperidine, piperazine, pyrrolidine, imidazoline or morpholine ring, while R 10 is hydrogen.
  • Preferred distyrylbiphenyl compounds of the formula (X) are those in which the cation M is an alkali metal, ammonium or amine ion, potassium and sodium being of particular importance for practical reasons.
  • the anionic polysaccharides which can be used according to the invention belong to the group of modified polysaccharides which can be derived from cellulose. It can be etherified cellulose, but also heteropolysaccharides that contain other monosaccharides in the side chains, e.g. Mannose and glucuronic acid included.
  • the anionic polysaccharide is, for example, Na carboxymethyl cellulose and particularly preferably xanthan.
  • the amount of polysaccharide is preferably 0.01 to 1% by weight, a range of 0.05-0.5% by weight being particularly preferred, based on the total weight of the formulation. However, with very highly concentrated or very low concentrated formulations, these ranges can be exceeded.
  • the formulation can contain auxiliaries; Examples include electrolytes, preservatives such as chloroacetamide or aqueous formaldehyde solution and odor improvers.
  • the electrolyte can be sodium chloride, sodium sulfate, sodium carbonate or one of the corresponding potassium salts or also mixtures of the aforementioned substances.
  • the amount of electrolyte can be 0.1 to 25% by weight, based on the total weight of the formulation, preferably 0.1 to 20% by weight.
  • Formulations according to the invention are obtained by mixing the moist filter cake or the dry powder of an anionic optical brightener, which preferably contains at least one sulfonic acid residue, in an amount of 10-60% by weight, based on the total weight of the formulation, with 0.01-1% by weight % anionic polysaccharide and water mixed and homogenized.
  • an anionic optical brightener which preferably contains at least one sulfonic acid residue
  • the desired content of anionic optical brightener in the suspension can be adjusted either by adding water, aqueous electrolyte, suspension or further dry powder to the moist filter cake. This setting can be made before, during or after the addition of the anionic polysaccharide.
  • the proportion of the anionic optical brightener is expediently 10 to 60%, preferably 15 to 40% by weight, based on the weight of the suspension.
  • the suspension is then mixed with the anionic polysaccharide until it is homogeneous.
  • the formulation can be incorporated into a detergent, e.g. by allowing the required amount of the suspension to flow from a container into a mixing device which contains a suspension of the detergent or detergent.
  • the present invention accordingly also relates to a process for the production of detergents, and to the detergents obtained thereafter, characterized in that a suspension for detergents of conventional detergents is mixed with an inventive suspension of brighteners, and dried.
  • the suspensions obtained are advantageously dried by subjecting them to a spray drying process.
  • the brightener formulation according to the invention can be used for the production of liquid detergents.
  • the properties of the brightener formulation correspond to those from Example 1.
  • the brightener formulation does not form any deposits after standing for several months at room temperature and 40 ° C.
  • the brightener formulation is stable on storage at room temperature and 40 ° C.
  • the suspension shows no deposits after standing for 3 months at room temperature.
  • the brightener formulation is stable on storage at room temperature and 40 ° C.

Abstract

The brightener compositions contain an anionic optic brightener which preferably contains at least one sulpho radical in an amount of 10-60% by weight, relative to the total weight of the composition, an anionic polysaccharide and water and, if desired, auxiliaries; these compositions are used for the preparation of detergents.

Description

Die vorliegende Erfindung betrifft lagerstabile, wässrige, konzentrierte Aufhellerformulierungen und ein Verfahren zu deren Herstellung sowie deren Verwendung.The present invention relates to storage-stable, aqueous, concentrated brightener formulations and a process for their preparation and their use.

Heutzutage werden optische Aufheller bevorzugt in Form wässriger Lösungen in den Handel gebracht. Hierzu wird der feuchte Filterkuchen oder auch das trockene Pulver mit Wasser aufgeschlämmt. Diese Suspension wird mit Dispergatoren und Verdickungsmitteln zur Erhöhung von Homogenität, Benetzbarkeit und Stabilität versetzt. Zu diesen Hilfsstoffen setzt man häufig noch einen Elektrolyten hinzu. Die bisher verwendeten Hilfsstoffe konnten jedoch ein Sedimentieren der Aufheller nicht über einen längeren Zeitraum verhindern.Nowadays, optical brighteners are preferably marketed in the form of aqueous solutions. For this purpose, the moist filter cake or the dry powder is slurried with water. This suspension is mixed with dispersants and thickeners to increase homogeneity, wettability and stability. An electrolyte is often added to these auxiliaries. However, the additives used up to now could not prevent sedimentation of the brighteners over a longer period of time.

Es wurde nun überraschenderweise gefunden, dass man lagerstabile, konzentrierte, wässrige Aufhellerformulierungen erhält, wenn man zu der wässrigen Suspension derartiger Aufheller ein anionisches Polysaccharid in geringen Mengen zugibt. Derartige Suspensionen setzen sich während der Lagerung kaum ab. Zusätzlich zu dem guten Sedimentationsverhalten bleiben die Suspensionen während der Lagerung homogen.It has now surprisingly been found that storage-stable, concentrated, aqueous brightener formulations are obtained if an anionic polysaccharide is added in small amounts to the aqueous suspension of such brighteners. Such suspensions hardly settle out during storage. In addition to the good sedimentation behavior, the suspensions remain homogeneous during storage.

Die Formulierungen gemäss der Erfindung sind demnach gekennzeichnet durch einen Gehalt an:

  • a) 10 bis 60 Gew.%, bezogen auf das Gesamtgewicht der Aufhellerformulierung eines anionischen optischen Aufhellers,
  • b) 0,01 bis 1 Gew.%, bezogen auf das Gesamtgewicht der Aufhellerformulierung eines anionischen Polysaccharids und
  • c) Wasser; sowie gegebenenfalls
  • d) Hilfsstoffe.
The formulations according to the invention are therefore characterized by a content of:
  • a) 10 to 60% by weight, based on the total weight of the brightener formulation of an anionic optical brightener,
  • b) 0.01 to 1% by weight, based on the total weight of the brightener formulation of an anionic polysaccharide and
  • c) water; and if necessary
  • d) auxiliary substances.

Diese Formulierungen stellen Suspensionen dar.These formulations represent suspensions.

Vorzugsweise enthalten solche Formulierungen anionische optische Aufheller, die mindestens einen Sulfonsäurerest enthalten.Such formulations preferably contain anionic optical brighteners which contain at least one sulfonic acid residue.

Beispielsweise handelt es sich um Aufheller der Triazinreihe der Formel:

Figure imgb0001
worin X und Y, die gleichartig oder verschieden sein können und einen sekundären oder tertiären Aminrest oder eine mono- oder di-substituierte Alkoxygruppe bedeuten, und M ein Wasserstoffatom oder ein salzbildendes Kation bedeutet.For example, they are brighteners of the triazine series of the formula:
Figure imgb0001
 wherein X and Y, which may be the same or different and represent a secondary or tertiary amine radical or a mono- or di-substituted alkoxy group, and M represents a hydrogen atom or a salt-forming cation.

Von besonderem Interesse sind:

  • a)
    Figure imgb0002
    worin X1 und Yi, die gleichartig oder verschieden sein können, eine Phenylaminogruppe, welche gegebenenfalls durch Alkylreste mit 1 oder 2 Kohlenstoffatomen mono- oder di-substituiert ist, die Morpholinogruppe, eine Alkylaminogruppe mit 1 bis 4 Kohlenstoffatomen, die durch Hydroxylreste substituiert sein kann, eine Alkoxygruppe mit 1 bis 4 Kohlenstoffatomen bedeuten, und M Wasserstoff oder ein salzbildendes Kation darstellt.
  • b)
    Figure imgb0003
    worin X2 und Y2, die gleichartig oder verschieden sein können, die Phenylamino-, die Morpholino-, eine Alkylaminogruppe mit 1 bis 4 Kohlenstoffatomen, die durch Hydroxylreste substituiert sein kann und M Wasserstoff oder ein salzbildendes Kation bedeuten.
  • c)
    Figure imgb0004
    worin X3 und Y3, die gleichartig oder verschieden sein können, eine Phenylamino-, Morpholino-, die N-Methyl-N-äthanolaminogruppe und M Wasserstoff oder ein salzbildendes Kation bedeuten.
  • d)
    Figure imgb0005
    worin X4 und Y4, die gleichartig oder verschieden sein können, die Morpholino- oder die N-Methyl-N-äthanolaminogruppe und M Wasserstoff oder ein salzbildendes Kation bedeuten.
  • e)
    Figure imgb0006
    worin M' ein Alkalimetallion bedeutet, wobei im Falle dieses optischen Aufhellers zweckmässig ein Gehalt von 4 bis 25 Gew.%, bezogen auf das Gesamtgewicht der Aufschlämmung an einem starken Elektrolyten vorhanden ist.
Of particular interest are:
  • a)
    Figure imgb0002
     wherein X 1 and Yi, which may be the same or different, a phenylamino group which is optionally mono- or di-substituted by alkyl radicals having 1 or 2 carbon atoms, the morpholino group, an alkylamino group having 1 to 4 carbon atoms which may be substituted by hydroxyl radicals , represents an alkoxy group having 1 to 4 carbon atoms, and M represents hydrogen or a salt-forming cation.
  • b)
    Figure imgb0003
     wherein X 2 and Y 2 , which may be the same or different, are the phenylamino, the morpholino, an alkylamino group having 1 to 4 carbon atoms, which may be substituted by hydroxyl radicals and M is hydrogen or a salt-forming cation.
  • c)
    Figure imgb0004
     wherein X 3 and Y 3 , which may be the same or different, represent a phenylamino, morpholino, the N-methyl-N-ethanolamine group and M is hydrogen or a salt-forming cation.
  • d)
    Figure imgb0005
     wherein X 4 and Y 4 , which may be the same or different, represent the morpholino or the N-methyl-N-ethanolamino group and M is hydrogen or a salt-forming cation.
  • e)
    Figure imgb0006
     where M 'is an alkali metal ion, in the case of this optical brightener a content of 4 to 25% by weight, based on the total weight of the slurry, of a strong electrolyte is expediently present.

Weiterhin kann man optische Aufheller der Distilbenreihe einsetzen. So zum Beispiel Verbindungen der Formel

Figure imgb0007
wobei A = Sulfonsäurerest, Wasserstoff, C1 -C4-Alkyl, C1 -C4-Alkoxy oder Halogen und B = Wasserstoff, C1 -C4-Alkyl, C1 -C4-Alkoxy oder Halogen bedeuten, mit der Bedingung, dass mindestens ein Substituent A = Sulfonsäurerest ist und m, n, o, p unabhängig voneinander eine Zahl 1 oder 2 bedeuten.Optical brighteners from the distilbene range can also be used. For example compounds of the formula
Figure imgb0007
 where A = sulfonic acid residue, hydrogen, C 1 -C 4 alkyl, C 1 -C 4 alkoxy or halogen and B = hydrogen, C 1 -C 4 alkyl, C 1 -C 4 alkoxy or halogen, with which Condition that at least one substituent A = sulfonic acid residue and m, n, o, p independently of one another represent a number 1 or 2.

Bevorzugt sind solche Verbindungen in denen o = 2 ist.Compounds in which o = 2 are preferred.

Besonders bevorzugte Verbindungen sind Verbindungen der Formel

Figure imgb0008
Figure imgb0009
wobei A, B und n obige Bedeutung haben und M ein salzbildendes Kation ist.Particularly preferred compounds are compounds of the formula
Figure imgb0008
Figure imgb0009
 where A, B and n have the above meaning and M is a salt-forming cation.

Von praktischem Interesse sind dabei die Verbindungen

Figure imgb0010
Figure imgb0011
Figure imgb0012
wobei M' ein Alkalimetallion bedeutet.The connections are of practical interest
Figure imgb0010
Figure imgb0011
Figure imgb0012
 where M 'represents an alkali metal ion.

Als Halogene kommen vor allem Fluor, Chlor und Brom in Frage, insbesondere jedoch Chlor.The most suitable halogens are fluorine, chlorine and bromine, but especially chlorine.

Als C1 -C4-Alkylreste kommen unverzweigte und verzweigte Alkylreste wie der Methyl-, Ethyl-, n- und iso-Propyl, n-, sec- und tert.-Butylrest in Betracht. Diese C1-C4-Alkylreste können ihrerseits substituiert sein mit z.B. Aryl-(Phenyl-, Naphthyl-), C1 -C4-Alkyl-, C1 -C4-Alkoxy-, OH- oder CN-Gruppen.As a C 1 -C 4 alkyl radicals come straight and branched alkyl radicals such as the methyl, ethyl, n- and iso-propyl, n-, sec- and tert-butyl radicals into consideration. These C 1 -C 4 alkyl radicals can in turn be substituted with, for example, aryl (phenyl, naphthyl), C 1 -C 4 alkyl, C 1 -C 4 alkoxy, OH or CN groups.

Salzbildende Kationen M sind z.B. Alkalimetall-, Ammonium- oder Aminsalzionen. Unter Aminsalzionen sind solche der Formel H+NR8 R9 R10 bevorzugt, in denen Rg, R9 und R10 unabhängig voneinander Wasserstoff, Alkyl, Alkenyl, Hydroxyalkyl, Cyanoalkyl, Halogenalkyl oder Phenylalkyl bedeuten oder worin R8 und Rg zusammen die Ergänzung zu einem 5-7-gliedrigen gesättigten Stickstoffheterocyclus darstellen, der noch zusätzlich ein Stickstoff- oder Sauerstoffatom als Ringglied enthalten kann, beispielsweise einen Piperidin-, Piperazin-, Pyrrolidin-, Imidazolin- oder Morpholinring, während R10 für Wasserstoff steht.Salt-forming cations M are, for example, alkali metal, ammonium or amine salt ions. Preferred amine salt ions are those of the formula H + NR 8 R 9 R 10 in which Rg, R 9 and R 10 independently of one another are hydrogen, alkyl, alkenyl, hydroxyalkyl, cyanoalkyl, haloalkyl or phenylalkyl or in which R 8 and Rg together are the addition represent a 5-7-membered saturated nitrogen heterocycle which may additionally contain a nitrogen or oxygen atom as a ring member, for example a piperidine, piperazine, pyrrolidine, imidazoline or morpholine ring, while R 10 is hydrogen.

Bevorzugte Distyrylbiphenylverbindungen der Formel (X) sind solche in denen das Kation M ein Alkalimetall-, Ammonium-, oder Aminion ist, wobei aus praktischen Erwägungen Kalium und Natrium eine besondere Bedeutung haben.Preferred distyrylbiphenyl compounds of the formula (X) are those in which the cation M is an alkali metal, ammonium or amine ion, potassium and sodium being of particular importance for practical reasons.

Die erfindungsgemäss verwendbaren anionischen Polysaccharide gehören zur Gruppe der modifizierten Polysaccharide, die sich von der Zellulose ableiten lassen. Es kann sich um veretherte Zellulose handeln, aber auch um Heteropolysaccharide, die in den Seitenketten weitere Monosaccharide wie z.B. Mannose und Glucuronsäure enthalten.The anionic polysaccharides which can be used according to the invention belong to the group of modified polysaccharides which can be derived from cellulose. It can be etherified cellulose, but also heteropolysaccharides that contain other monosaccharides in the side chains, e.g. Mannose and glucuronic acid included.

Das anionische Polysaccharid ist zum Beispiel Na-Carboxymethylcellulose und besonders bevorzugt Xanthan.The anionic polysaccharide is, for example, Na carboxymethyl cellulose and particularly preferably xanthan.

Die Menge an Polysaccharid beträgt vorzugsweise 0,01 bis 1 Gew.%, wobei ein Bereich von 0,05-0,5 Gew.% besonders bevorzugt ist, bezogen auf das Gesamtgewicht der Formulierung. Es können jedoch bei sehr hoch konzentrierten oder sehr niedrig konzentrierten Formulierungen diese Bereiche überschritten werden.The amount of polysaccharide is preferably 0.01 to 1% by weight, a range of 0.05-0.5% by weight being particularly preferred, based on the total weight of the formulation. However, with very highly concentrated or very low concentrated formulations, these ranges can be exceeded.

Gegebenenfalls kann die Formulierung Hilfsstoffe enthalten; exemplarisch seien genannt Elektrolyte, Konservierungsmittel wie Chloracetamid oder wässrige Formaldehydlösung und Geruchsverbesserer.If appropriate, the formulation can contain auxiliaries; Examples include electrolytes, preservatives such as chloroacetamide or aqueous formaldehyde solution and odor improvers.

Der Elektrolyt kann Natriumchlorid, Natriumsulfat, Natriumcarbonat oder eines der entsprechenden Kaliumsalze sein oder auch Mischungen der vorgenannten Stoffe. Die Menge an Elektrolyt kann 0,1 bis 25 Gew.%, bezogen auf das Gesamtgewicht der Formulierung, vorzugsweise 0,1 bis 20 Gew.%, betragen.The electrolyte can be sodium chloride, sodium sulfate, sodium carbonate or one of the corresponding potassium salts or also mixtures of the aforementioned substances. The amount of electrolyte can be 0.1 to 25% by weight, based on the total weight of the formulation, preferably 0.1 to 20% by weight.

Erfindungsgemässe Formulierungen erhält man, indem man den feuchten Filterkuchen oder auch das trockene Pulver eines anionischen optischen Aufhellers, der vorzugsweise mindestens einen Sulfonsäurerest enthält, in einer Menge von 10-60 Gew.% bezogen auf das Gesamtgewicht der Formulierung mit 0,01 - 1 Gew.% anionischem Polysaccharid und Wasser vermischt und homogenisiert.Formulations according to the invention are obtained by mixing the moist filter cake or the dry powder of an anionic optical brightener, which preferably contains at least one sulfonic acid residue, in an amount of 10-60% by weight, based on the total weight of the formulation, with 0.01-1% by weight % anionic polysaccharide and water mixed and homogenized.

Der gewünschte Gehalt an anionischem optischen Aufheller in der Suspension kann entweder durch Zugabe von Wasser, wässrigem Elektrolyt, Suspension oder weiterem trockenen Pulver zu dem feuchten Filterkuchen eingestellt werden. Diese Einstellung kann vor, während oder nach Zusatz des anionischen Polysaccharids vorgenommen werden. Der Anteil des anionischen optischen Aufhellers beträgt zweckmässig 10 bis 60 %, vorzugsweise 15 bis 40 Gew.%, bezogen auf das Gewicht der Suspension.The desired content of anionic optical brightener in the suspension can be adjusted either by adding water, aqueous electrolyte, suspension or further dry powder to the moist filter cake. This setting can be made before, during or after the addition of the anionic polysaccharide. The proportion of the anionic optical brightener is expediently 10 to 60%, preferably 15 to 40% by weight, based on the weight of the suspension.

Die Suspension wird dann mit dem anionischen Polysaccharid vermischt, bis sie homogen ist.The suspension is then mixed with the anionic polysaccharide until it is homogeneous.

Die Formulierung kann in ein Waschmittel eingearbeitet werden, z.B. durch Einfliessenlassen der erforderlichen Menge der Suspension aus einem Behälter in eine Mischvorrichtung, die eine Suspension des Waschmittels bzw. des Detergenz enthält.The formulation can be incorporated into a detergent, e.g. by allowing the required amount of the suspension to flow from a container into a mixing device which contains a suspension of the detergent or detergent.

Die vorliegende Erfindung betrifft demzufolge auch ein Verfahren zur Herstellung von Waschmitteln, sowie die danach erhaltenen Waschmittel, dadurch gekennzeichnet, dass man eine Suspension für Waschmittel üblicher Detergentien mit einer erfindungsgemässen Suspension von Aufhellern, vermischt und trocknet. Die erhaltenen Suspensionen werden vorteilhaft getrocknet, indem man sie einem Sprühtrocknungsverfahren unterwirft.The present invention accordingly also relates to a process for the production of detergents, and to the detergents obtained thereafter, characterized in that a suspension for detergents of conventional detergents is mixed with an inventive suspension of brighteners, and dried. The suspensions obtained are advantageously dried by subjecting them to a spray drying process.

Weiterhin kann die erfindungsgemässe Aufhellerformulierung zur Herstellung von flüssigen Waschmitteln verwendet werden.Furthermore, the brightener formulation according to the invention can be used for the production of liquid detergents.

Die folgenden Beispiele erläutern die Erfindung, ohne sie darauf zu beschränken. Teile sind auf das Gewicht bezogen.The following examples illustrate the invention without restricting it thereto. Parts are by weight.

Beispiel 1example 1

  • 0,075 Teile Xanthan0.075 parts of xanthan
  • 0,2 Teile Chloracetamid0.2 parts chloroacetamide
  • 1,3 Teile Natriumsulfat und1.3 parts of sodium sulfate and
  • 5 Teile Natriumchlorid werden in5 parts of sodium chloride are in
  • 61 Teilen Wasser gelöst.61 parts of water dissolved.
  • Unter Rühren werden in diese Lösung 32,5 Teile feuchter Presskuchen, enthaltend 12 Teile Wasser, 0,5 Teile32.5 parts of moist presscake containing 12 parts of water and 0.5 parts are added to this solution with stirring
  • Natriumchlorid und 20 Teile des optischen Aufhellers
    Figure imgb0013
    eingetragen und homogenisiert.    Sodium chloride and 20 parts of the optical brightener
    Figure imgb0013
     registered and homogenized.

Die weisse Aufhellerformulierung hat eine Viskosität von 108 cP (Haake VT 18, MVII, 22 ° C, D = 42 sec-1) und bildet nach zweimonatigem Stehen bei -5 ° C, RT und 40 ° C keine Ablagerungen.The white brightener formulation has a viscosity of 108 cP (Haake VT 18, MVII, 22 ° C, D = 42 sec -1 ) and forms no deposits after standing for two months at -5 ° C, RT and 40 ° C.

Beispiel 2Example 2

Wie im Beispiel 1 werden

  • 0,075 Teile Xanthan
  • 0,2 Teile Chloracetamid
  • 1,3 Teile Natriumsulfat
  • 5 Teile Natriumchlorid in
  • 72 Teilen Wasser gelöst, mit
  • 21,5 Teilen des trockenen Presskuchens, enthaltend 1,5 Teile Wasser und 20 Teile des optischen Aufhellers
    Figure imgb0014
    versetzt und unter Rühren homogenisiert.
As in example 1
  • 0.075 parts of xanthan
  • 0.2 parts chloroacetamide
  • 1.3 parts sodium sulfate
  • 5 parts of sodium chloride in
  • 72 parts of water dissolved, with
  • 21.5 parts of the dry press cake, containing 1.5 parts of water and 20 parts of the optical brightener
    Figure imgb0014
     added and homogenized with stirring.

Die Aufhellerformulierung entspricht in ihren Eigenschaften derjenigen aus Beispiel 1.The properties of the brightener formulation correspond to those from Example 1.

Beispiel 3Example 3

Wie in Beispiel 1 werden

  • 0,1 Teile Chloracetamid
  • 3,0 Teile Natriumchlorid
  • 1,0 Teil Talgfettalkohol mit 11 Mol Ethylenoxid
  • 0,3 Teile Xanthan in
  • 37,5 Teilen Wasser gelöst, mit
  • 58,1 Teilen des wasserfeuchten Filterkuchens, enthaltend 56 Teile Wasser und 44 Teile des optischen Aufhellers
    Figure imgb0015
    versetzt und unter Rühren homogenisiert.
As in example 1
  • 0.1 parts chloroacetamide
  • 3.0 parts sodium chloride
  • 1.0 part of tallow fatty alcohol with 11 moles of ethylene oxide
  • 0.3 parts xanthan in
  • 37.5 parts of water dissolved with
  • 58.1 parts of the water-moist filter cake, containing 56 parts of water and 44 parts of the optical brightener
    Figure imgb0015
     added and homogenized with stirring.

Die Aufhellerformulierung bildet nach mehrmonatigem Stehen bei Raumtemperatur und 40 °C keine Ablagerungen.The brightener formulation does not form any deposits after standing for several months at room temperature and 40 ° C.

Beispiel 4Example 4

Wie in Beispiel 3 werden

  • 0,1 Teile Chloracetamid
  • 0,1 Teile Xanthan
  • 3,0 Teile Natriumchlorid in
  • 5,9 Teilen Wasser gelöst, mit
  • 90,9 Teilen des wasserfeuchten Filterkuchens, enthaltend 56 Teile Wasser
  • und 44 Teile des optischen Aufhellers der Formel (300), versetzt und unter Rühren homogenisiert.
As in example 3
  • 0.1 parts chloroacetamide
  • 0.1 part xanthan
  • 3.0 parts sodium chloride in
  • 5.9 parts of water dissolved with
  • 90.9 parts of the water-moist filter cake, containing 56 parts of water
  • and 44 parts of the optical brightener of the formula (300), added and homogenized with stirring.

Die Aufhellerformulierung ist bei Raumtemperatur und 40 ° C lagerstabil.The brightener formulation is stable on storage at room temperature and 40 ° C.

Beispiel 5Example 5

Wie in Beispiel 1 werden

  • 0,5 Teile Formaldehyd (37 %) wässrig
  • 2,0 Teile Na-Carboxymethylcellulose in
  • 33,5 Teilen Wasser gelöst, mit
  • 64,5 Teilen des wasserfeuchten Filterkuchens, enthaltend 53,5 Teile Wasser und 46,5 Teile des optischen Aufhellers der Formel
    Figure imgb0016
    versetzt und unter Rühren homogenisiert.
As in example 1
  • 0.5 parts formaldehyde (37%) aqueous
  • 2.0 parts Na carboxymethyl cellulose in
  • 33.5 parts of water dissolved with
  • 64.5 parts of the water-moist filter cake, containing 53.5 parts of water and 46.5 parts of the optical brightener of the formula
    Figure imgb0016
     added and homogenized with stirring.

Die Suspension zeigt nach 3-monatigem Stehen bei Raumtemperatur keine Ablagerungen.The suspension shows no deposits after standing for 3 months at room temperature.

Beispiel 6Example 6

Wie in Beispiel 3 werden

  • 0,1 Teile Chloracetamid
  • 0,1 Teile Xanthan in
  • 8,9 Teilen Wasser gelöst, mit
  • 90,9 Teilen des wasserfeuchten Filterkuchens, enthaltend 56 Teile Wasser und 44 Teile des optischen Aufhellers der Formel (300), versetzt und unter Rühren homogenisiert.
As in example 3
  • 0.1 parts chloroacetamide
  • 0.1 parts xanthan in
  • 8.9 parts of water dissolved with
  • 90.9 parts of the water-moist filter cake, containing 56 parts of water and 44 parts of the optical brightener of the formula (300), were added and the mixture was homogenized with stirring.

Die Aufhellerformulierung ist bei Raumtemperatur und 40 ° C lagerstabil.The brightener formulation is stable on storage at room temperature and 40 ° C.

Claims (21)

1. A storage-stable whitener formulation which comprises
a) 10 to 60 % by weight, based on the total weight of the whitener formulation, of an anionic fluorescent whitening agent,
b) 0.01 to 1 % by weight, based on the total weight of the whitener formulation, of an anionic polysaccharide, and
c) water.
2. A storage-stable whitener formulation according to any one of claims 1, 15, 16 or 17, which contains 15-40 % by weight of whitening agent.
3. A storage-stable whitener formulation according to claim 1, which contains an electrolyte.
4. A storage-stable whitener formulation according to claim 1, which contains 2-25 % of electrolyte.
5. A storage-stable whitener formulation according to any one of claims 1, 15, 16 or 17, which contains a fluorescent whitening agent of the formula
Figure imgb0032
in which X and Y may be identical or different and are a secondary or tertiary amine radical or a mono-or disubstituted alkoxy group, and M is a hydrogen atom or a salt-forming cation.
6. A storage-stable whitener formulation according to claim 5, which contains a fluorescent whitening agent of the formula
Figure imgb0033
in which X2 and Y2 may be identical or different and are the phenylamino group, the morpholino group, an alkylamino group of 1 to 4 carbon atoms which may be substituted by hydroxyl radicals, and M is hydrogen or a salt-forming cation.
7. A storage-stable whitener formulation according to any one of claims 1, 15, 16 or 17, which contains a fluorescent whitening agent of the formu 1 a
Figure imgb0034
where A is a sulfonic acid radical, hydrogen, C1-C4alkyl, C1-C4alkoxy or halogen, and B is hydrogen, C1-C4alkyl, C1-C4alkoxy or halogen, with the proviso that at least one substituent A is a sulfonic acid radical and m, n, o and p are each independently of one another 1 or 2.
8. A storage-stable whitener formulation according to claim 7, which contains a fluorescent whitening agent of the formula
Figure imgb0035
where A is a sulfonic acid radical, hydrogen, C1-C4alkyl, C1-C4alkoxy or halogen, and B is a sulfonic acid radical, hydrogen, C1-C4alkyl, C1-C4alkoxy or halogen, and each n independently of the other is 1 or 2, and M is a salt-forming cation.
9. A storage-stable whitener formulation according to claim 7, which contains a fluorescent whitening agent of the formula
Figure imgb0036
where A is a sulfonic acid radical, hydrogen, C1-C4alkyl, C1-C4alkoxy or halogen, and B is hydrogen, C1-C4alkyl, C1-C4alkoxy or halogen, and each n independently of the other is 1 or 2, and M is a salt-forming cation.
10. A storage-stable whitener formulation according to claim 5, which contains a fluorescent whitening agent of the formula
Figure imgb0037
or
Figure imgb0038
where M' is an alkali metal ion.
11. A storage-stable whitener formulation according to claim 7, which contains a fluorescent whitening agent of the formula
Figure imgb0039
or
Figure imgb0040
or
Figure imgb0041
where M' is an alkali metal ion.
12. A storage-stable whitener formulation according to either claim 1 or claim 15, wherein the anionic polysaccharide is xanthane.
13. A process for the preparation of a storage-stable whitener formulation according to either claim 1 or claim 15, which comprises mixing the moist filter cake or the dry powder of the fluorescent whitening agent according to claim 1 or claim 15 with an anionic polysaccharide and with water, and homogenizing the formulation.
14. The use of a storage-stable whitener formulation according to either claim 1 or claim 15 for the preparation of a detergent composition.
15. A storage-stable whitener formulation which comprises
a) 10 to 60 % by weight, based on the total weight of the whitener formulation, of an anionic fluorescent whitening agent,
b) 0.01 to 1 % by weight, based on the total weight of the whitener formulation, of an anionic polysaccharide, and
c) water, and optionally
d) auxiliaries.
16. A storage-stable whitener formulation according to claim 15, wherein the auxiliary is an electrolyte or a mixture of electrolytes.
17. A storage-stable whitener formulation according to claim 16, which contains 0.1-25 % by weight of electrolyte.
18. A storage-stable whitener formulation according to any one of claims 1, 15, 16 or 17, wherein the anionic polysaccharide is a modified polysaccharide which can be derived from cellulose.
19. A storage-stable whitener formulation according to claim 18, wherein the modified polysaccharide is an etherified cellulose or a heteropolysaccharide having the basic structure of cellulose.
20. A storage-stable whitener formulation according to claim 15, which comprises
a) 10 to 60 % by weight, based on the total weight of the whitener formulation, of an anionic fluorescent whitening agent of the formula
Figure imgb0042
or
Figure imgb0043
where M' is an alkali metal ion,
b) 0.01 to 1 % by weight of xanthane, based on the total weight of the whitener formulation,
c) water, and optionally
d) an electrolyte or a mixture of electrolytes.
21. A storage-stable whitener formulation according to claim 15, which comprises
a) 10 to 60 % by weight, based on the total weight of the whitener formulation, of an anionic fluorescent whitening agent of the formula
Figure imgb0044
or
Figure imgb0045
or
Figure imgb0046
where M' is an alkali metal ion,
b) 0.01 to 1 % by weight of xanthane, based on the total weight of the whitener formulation,
c) water, and optionally
d) an electrolyte or a mixture of electrolytes.
EP90103750A 1989-02-28 1990-02-26 Storage-stable brightener composition Expired - Lifetime EP0385374B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT90103750T ATE100484T1 (en) 1989-02-28 1990-02-26 SHELF-STABLE BRIGHTENER FORMULATION.

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CH73389 1989-02-28
CH73389 1989-02-28
CH733/89 1989-02-28

Publications (3)

Publication Number Publication Date
EP0385374A1 EP0385374A1 (en) 1990-09-05
EP0385374B1 true EP0385374B1 (en) 1994-01-19
EP0385374B2 EP0385374B2 (en) 2005-01-12

Family

ID=4193929

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Country Status (9)

Country Link
US (1) US5076968A (en)
EP (1) EP0385374B2 (en)
JP (1) JP2688378B2 (en)
AT (1) ATE100484T1 (en)
BR (1) BR9000850A (en)
CA (1) CA2010909C (en)
DE (1) DE59004269D1 (en)
ES (1) ES2048343T5 (en)
MX (1) MX170189B (en)

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Also Published As

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CA2010909A1 (en) 1990-08-31
EP0385374B2 (en) 2005-01-12
JP2688378B2 (en) 1997-12-10
EP0385374A1 (en) 1990-09-05
US5076968A (en) 1991-12-31
CA2010909C (en) 2002-01-22
DE59004269D1 (en) 1994-03-03
ATE100484T1 (en) 1994-02-15
MX170189B (en) 1993-08-10
BR9000850A (en) 1991-02-05
ES2048343T3 (en) 1994-03-16
ES2048343T5 (en) 2005-07-01
JPH02266000A (en) 1990-10-30

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