EP0321715A2 - Stabile, optische Aufheller enthaltende Waschmittel - Google Patents
Stabile, optische Aufheller enthaltende Waschmittel Download PDFInfo
- Publication number
- EP0321715A2 EP0321715A2 EP88119487A EP88119487A EP0321715A2 EP 0321715 A2 EP0321715 A2 EP 0321715A2 EP 88119487 A EP88119487 A EP 88119487A EP 88119487 A EP88119487 A EP 88119487A EP 0321715 A2 EP0321715 A2 EP 0321715A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- salts
- detergents
- peracid
- peracids
- optical brighteners
- 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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- 239000003599 detergent Substances 0.000 title claims abstract description 23
- 230000003287 optical effect Effects 0.000 title claims abstract description 11
- 238000005406 washing Methods 0.000 claims abstract description 10
- 150000004966 inorganic peroxy acids Chemical class 0.000 claims abstract description 6
- 150000004967 organic peroxy acids Chemical class 0.000 claims abstract description 6
- 150000003839 salts Chemical class 0.000 claims description 13
- 150000004965 peroxy acids Chemical class 0.000 claims description 11
- 239000000203 mixture Substances 0.000 claims description 10
- 239000007844 bleaching agent Substances 0.000 claims description 6
- JHUXOSATQXGREM-UHFFFAOYSA-N dodecanediperoxoic acid Chemical compound OOC(=O)CCCCCCCCCCC(=O)OO JHUXOSATQXGREM-UHFFFAOYSA-N 0.000 claims description 5
- 239000004753 textile Substances 0.000 claims description 5
- 125000004178 (C1-C4) alkyl group Chemical group 0.000 claims description 2
- 125000000229 (C1-C4)alkoxy group Chemical group 0.000 claims description 2
- 150000001768 cations Chemical class 0.000 claims description 2
- 229910052736 halogen Inorganic materials 0.000 claims description 2
- 125000005843 halogen group Chemical group 0.000 claims description 2
- 229910052739 hydrogen Inorganic materials 0.000 claims description 2
- 239000001257 hydrogen Substances 0.000 claims description 2
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 2
- 238000002156 mixing Methods 0.000 claims description 2
- JRKICGRDRMAZLK-UHFFFAOYSA-L peroxydisulfate Chemical compound [O-]S(=O)(=O)OOS([O-])(=O)=O JRKICGRDRMAZLK-UHFFFAOYSA-L 0.000 claims description 2
- MWNQXXOSWHCCOZ-UHFFFAOYSA-L sodium;oxido carbonate Chemical compound [Na+].[O-]OC([O-])=O MWNQXXOSWHCCOZ-UHFFFAOYSA-L 0.000 claims description 2
- 239000003054 catalyst Substances 0.000 claims 1
- 150000001875 compounds Chemical class 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 claims 1
- 239000000463 material Substances 0.000 claims 1
- 238000004140 cleaning Methods 0.000 abstract 1
- 239000008187 granular material Substances 0.000 description 5
- 239000011734 sodium Substances 0.000 description 5
- 238000004061 bleaching Methods 0.000 description 3
- -1 magnesium or calcium Chemical class 0.000 description 3
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 description 2
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 2
- BGRWYDHXPHLNKA-UHFFFAOYSA-N Tetraacetylethylenediamine Chemical compound CC(=O)N(C(C)=O)CCN(C(C)=O)C(C)=O BGRWYDHXPHLNKA-UHFFFAOYSA-N 0.000 description 2
- 230000008033 biological extinction Effects 0.000 description 2
- 239000001768 carboxy methyl cellulose Substances 0.000 description 2
- UKMSUNONTOPOIO-UHFFFAOYSA-N docosanoic acid Chemical compound CCCCCCCCCCCCCCCCCCCCCC(O)=O UKMSUNONTOPOIO-UHFFFAOYSA-N 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 239000011777 magnesium Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 239000000344 soap Substances 0.000 description 2
- 235000019832 sodium triphosphate Nutrition 0.000 description 2
- UNXRWKVEANCORM-UHFFFAOYSA-I triphosphate(5-) Chemical compound [O-]P([O-])(=O)OP([O-])(=O)OP([O-])([O-])=O UNXRWKVEANCORM-UHFFFAOYSA-I 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 1
- 235000021357 Behenic acid Nutrition 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 229920002134 Carboxymethyl cellulose Polymers 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical class [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- KCXVZYZYPLLWCC-UHFFFAOYSA-N EDTA Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O KCXVZYZYPLLWCC-UHFFFAOYSA-N 0.000 description 1
- 102000004190 Enzymes Human genes 0.000 description 1
- 108090000790 Enzymes Proteins 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- ABLZXFCXXLZCGV-UHFFFAOYSA-N Phosphorous acid Chemical class OP(O)=O ABLZXFCXXLZCGV-UHFFFAOYSA-N 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 1
- 239000004902 Softening Agent Substances 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 238000002835 absorbance Methods 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- DPXJVFZANSGRMM-UHFFFAOYSA-N acetic acid;2,3,4,5,6-pentahydroxyhexanal;sodium Chemical compound [Na].CC(O)=O.OCC(O)C(O)C(O)C(O)C=O DPXJVFZANSGRMM-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000012190 activator Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- 150000001340 alkali metals Chemical class 0.000 description 1
- 229910052784 alkaline earth metal Inorganic materials 0.000 description 1
- 150000001342 alkaline earth metals Chemical class 0.000 description 1
- 150000003863 ammonium salts Chemical class 0.000 description 1
- 239000002280 amphoteric surfactant Substances 0.000 description 1
- 125000000129 anionic group Chemical group 0.000 description 1
- 239000003945 anionic surfactant Substances 0.000 description 1
- 239000002216 antistatic agent Substances 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- 229940116226 behenic acid Drugs 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 235000010948 carboxy methyl cellulose Nutrition 0.000 description 1
- 239000008112 carboxymethyl-cellulose Substances 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 239000003093 cationic surfactant Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000010411 cooking Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- YRIUSKIDOIARQF-UHFFFAOYSA-N dodecyl benzenesulfonate Chemical compound CCCCCCCCCCCCOS(=O)(=O)C1=CC=CC=C1 YRIUSKIDOIARQF-UHFFFAOYSA-N 0.000 description 1
- 229940071161 dodecylbenzenesulfonate Drugs 0.000 description 1
- RTZKZFJDLAIYFH-UHFFFAOYSA-N ether Substances CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 1
- LYCAIKOWRPUZTN-UHFFFAOYSA-N ethylene glycol Substances OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 1
- 229940071106 ethylenediaminetetraacetate Drugs 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 150000002484 inorganic compounds Chemical class 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 239000011572 manganese Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- MGFYIUFZLHCRTH-UHFFFAOYSA-N nitrilotriacetic acid Chemical compound OC(=O)CN(CC(O)=O)CC(O)=O MGFYIUFZLHCRTH-UHFFFAOYSA-N 0.000 description 1
- 239000002736 nonionic surfactant Substances 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 239000002304 perfume Substances 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 229920005646 polycarboxylate Polymers 0.000 description 1
- 229920005996 polystyrene-poly(ethylene-butylene)-polystyrene Polymers 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 150000004760 silicates Chemical class 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 235000019812 sodium carboxymethyl cellulose Nutrition 0.000 description 1
- 229920001027 sodium carboxymethylcellulose Polymers 0.000 description 1
- 229910052938 sodium sulfate Inorganic materials 0.000 description 1
- 235000011152 sodium sulphate Nutrition 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000001694 spray drying Methods 0.000 description 1
- 239000012086 standard solution Substances 0.000 description 1
- 239000000375 suspending agent Substances 0.000 description 1
- 239000012209 synthetic fiber Substances 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 239000003760 tallow Substances 0.000 description 1
- QEMXHQIAXOOASZ-UHFFFAOYSA-N tetramethylammonium Chemical compound C[N+](C)(C)C QEMXHQIAXOOASZ-UHFFFAOYSA-N 0.000 description 1
- GSEJCLTVZPLZKY-UHFFFAOYSA-O triethanolammonium Chemical compound OCC[NH+](CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-O 0.000 description 1
- GETQZCLCWQTVFV-UHFFFAOYSA-N trimethylamine Chemical compound CN(C)C GETQZCLCWQTVFV-UHFFFAOYSA-N 0.000 description 1
- 239000010457 zeolite Substances 0.000 description 1
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
-
- 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
- C11D3/39—Organic or inorganic per-compounds
- C11D3/3942—Inorganic per-compounds
-
- 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
- C11D3/39—Organic or inorganic per-compounds
- C11D3/3945—Organic per-compounds
Definitions
- the application relates to storage-stable detergents which, in addition to at least one peracid or its salts, contain at least one specific optical brightener of the bis-benzofuranyl type, and to their preparation and use for washing textiles.
- M in formula (I) is, for example, alkaline earth metal such as magnesium or calcium, but preferably alkali metal such as lithium, sodium, potassium and optionally substituted ammonium such as ammonium, mono-, di- or triethanol-ammonium, mono-, di- or tripropanol -ammonium or tri- or tetramethyl-ammonium.
- alkaline earth metal such as magnesium or calcium
- alkali metal such as lithium, sodium, potassium
- ammonium such as ammonium, mono-, di- or triethanol-ammonium, mono-, di- or tripropanol -ammonium or tri- or tetramethyl-ammonium.
- the detergents contain brighteners of the formula
- optical brighteners of the formula I and II are known and can be prepared by known methods (DE-OS-2 238 734).
- the peracids or their salts are organic or inorganic compounds described in the literature or on the market which bleach textiles even at temperatures from 20 ° C. Diperoxydodecanedioic acid (DPDDA) is of interest as organic peracid.
- the amount of organic peracid to be used is preferably 0.5% to 10%, in particular 1% to 5%.
- very effective, inorganic peracids such as persulfate and / or percarbonate can also be used.
- the amount of inorganic peracids is preferably 1% to 30%, in particular 10% to 20%, based on the total weight of the detergent and optionally and advantageously in combination with small amounts of catalytic bivalent metal salts, as described in US Pat. No. 4,655,782 and U.S. 4,655,953.
- Metal salts of copper and / or manganese are preferably used.
- the peracids are mainly added to the detergent by mixing the components e.g. with the help of screw dosing systems and / or fluidized bed mixers.
- the detergents are dry detergents of conventional compositions.
- they contain, for example, anionic, nonionic, amphoteric and / or cationic surfactants, builders such as, for example, pentasodium tripolyphosphate or substitute products such as phosphonates, polycarboxylates, acrylic-maleic copolymers, zeolites, nitrilotriacetate, Ethylene diaminotetraacetic acid, soil suspending agents such as sodium carboxymethyl cellulose, salts for adjusting the pH such as alkali or alkaline earth silicates, foam regulators such as soap, salts for adjusting the spray drying and granulate properties such as sodium sulfate, perfumes, and optionally antistatic and softening agents , Enzymes, photobleaches, pigments and / or shading agents.
- these components should be stable with respect to the bleaching system used.
- a granulate A is produced by drying and granulating a slurry consisting of approx. 1 part water and 1 part detergent of the following composition: 84 g Linear dodecylbenzenesulfonate 31 g Tallow alcohol-tetradecane-ethylene glycol ether (14 AeO) 37 g Na soap (mainly from behenic acid and C14-C20) 458 g Na tripolyphosphate 79 g Na silicate 20 g Mg silicate 12 g Carboxymethyl cellulose 2 g Ethylenediamine tetraacetate 222 g Na sulfate 1 g optical brighteners (FWA) according to the formula (I) - (II).
- FWA optical brighteners
- the peracid B (15 g DPDDA) is homogeneously mixed into 500 g of this granulate A, which has a residual moisture of ⁇ 5% after drying.
- Samples of the detergent W thus obtained are: - On the one hand to check the initial value, immediately determined by extraction and spectrophotometric extinction measurement for the FWA content, (theoretically: 0.1% FWA based on the weight of the granulate A) - On the other hand stored in commercial washing powder-compatible cardboard packages, ie with a coating, under selected and controlled temperature and humidity conditions for certain periods of time. After storage, the FWA content of each detergent is determined immediately. The difference from the initial value, expressed as a percentage, is a measure of the stability of the FWA against the corresponding bleach in the washing powder.
- the FWA determination mentioned above is carried out as follows: The washing powder is homogenized well by grinding and 1 g of it is mixed with 200 ml of solvent consisting of 9 parts of dimethyl sulfoxide and 1 part of water and stirred at room temperature for 30 minutes. Then it is centrifuged for 30 minutes. From the clear solution thus obtained, a sample is transferred with a pipette into a 1 cm quartz cuvette and its absorbance in the UV range, at the absorption maximum against a standard solution from the respective FWA measure up. The extinction is proportional to the FWA concentration. The reproducibility of the results is approx. ⁇ 1% if the test conditions are observed exactly the same.
- the percentage FWA loss is determined according to the conditions described above. Storage is in a closed package, at 20 to 25 ° C. After 6 months the FWA loss is:
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Detergent Compositions (AREA)
Abstract
Description
- Die Anmeldung betrifft lagerstabile Waschmittel, die neben mindestens einer Persäure oder deren Salze mindestens einen spezifischen optischen Aufheller vom Bis-benzofuranyl-Typ enthalten, sowie deren Herstellung und Verwendung zum Waschen von Textilien.
- Begründet durch den gestiegenen Anteil an Kunstfasern bzw. Mischfasern in den heute hergestellten Textilien, dem Wunsch, bunte Wäsche nicht mehr separat zu waschen sowie aus Energie-Sparmassnahmen wird in vielen Ländern die Wäsche nicht mehr bei 90°C-95°C oder beim Kochen sondern bei tieferen Temperaturen gewaschen. Diese führte dazu, dass die bislang meistens in Waschmitteln enthaltenen, als Bleichmittel wirkenden, Perborate durch Hilfsmittel wie z.B. Tetraacetylethylendiamin (TAED) aktiviert werden mussten, um akzeptable Bleicheffekte auch bei Waschtemperaturen von 60-80°C zu erlangen. Bei noch tieferen Waschtemperaturen liefern auch die Perborat/Aktivator-Systeme keine befriedigenden Ergebnisse mehr.
- Seit einiger Zeit werden daher Waschmittel beschrieben (DE-OS-27 56 583, EP-A-145 438, GB-2 141 754, GB-2 141 755, US-4 028 263, GB-59 272), die stärkere Bleichmittel wie z.B. Persäuren enthalten. Diese neuen Bleichmittel zeigen einerseits zwar hervorragende Bleicheffekte schon bei Temperaturen ab 20°C, andererseits zerstören sie aber die üblichen in Waschmitteln enthaltenen optischen Aufheller.
- Es wurde nun gefunden, dass spezielle Bis-benzofuranyl-Verbindungen überraschenderweise eine ausgezeichnete Stabilität in Waschmitteln aufweisen, die solche starken Bleichmittel enthalten. Unter durchschnittlichen Lagerbedingungen und sogar unter verschärften Bedingungen (Temperaturen über 30°C und Luftfeuchtigkeit über 60 %) sind diese speziellen Bis-benzofuranyl-Aufheller im Waschmittel über mehrere Monate vollständig stabil oder werden höchstens in einem für die Praxis nicht störenden Mass abgebaut.
- Gegenstand der Anmeldung sind somit lagerstabile Waschmittel enthaltend 0,5 bis 30 % einer anorganischen Persäure oder Diperoxydodecandisäure als organische Persäure oder deren Salze oder Mischungen von Persäuren oder deren Salze sowie 0,03 % bis 0,5 % eines optischen Aufhellers oder eine Mischung von optischen Aufhellern, der Formel (I)
worin
M = Wasserstoff oder ein Aequivalent eines nicht chromophoren Kations und
n = 2 bis 4 bedeuten und wobei (I) gegebenenfalls auch mit Resten R = Halogen, C₁-C₄-Alkyl oder C₁-C₄-Alkoxy substituiert ist. - M in Formel (I) steht beispielsweise für Erdalkalimetall wie Magnesium oder Calcium, vorzugsweise jedoch Alkalimetall, wie Lithium, Natrium, Kalium und gegebenenfalls substituiertes Ammonium, wie Ammonium, Mono-, Di- oder Triethanol-ammonium, Mono-, Di- oder Tripropanol-ammonium oder Tri- oder Tetramethyl-ammonium.
-
- Diese optischen Aufheller der Formel I und II sind bekannt und können nach bekannten Methoden hergestellt werden (DE-OS-2 238 734).
- Bei den Persäuren bzw. deren Salze handelt es sich um in der Literatur beschriebene oder auf dem Markt befindliche organische oder anorganische Verbindungen die Textilien schon bei Temperaturen ab 20°C bleichen. Als organische Persäure ist Diperoxydodecandisäure (DPDDA) von Interesse. Die einzusetzende Menge an organischer Persäure liegt vorzugsweise bei 0,5 % bis 10 %, insbesondere 1 % bis 5 %. Es können aber auch sehr wirksame, anorganische Persäuren wie Persulfat und/oder Percarbonat eingesetzt werden. Die Mengen anorganischer Persäuren liegt vorzugsweise bei 1 % bis 30 %, insbesondere 10 % bis 20 %, bezogen auf das gesamte Waschmittelgewicht und gegebenenfalls sowie vorteilhaft in Kombination mit kleinen Mengen katalytisch wirkender bivalenter Metall-Salze, wie sie in der US-4 655 782 und US-4 655 953 beschrieben werden. Bevorzugt werden Metallsalze von Kupfer und/oder Mangan verwendet.
- Selbstverständlich können auch Mischungen der organischen und/oder anorganischen Persäuren bzw. -Salzen eingesetzt werden.
- Die Zugabe der Persäuren in das Waschmittel erfolgt vor allem durch Mischen der Komponenten z.B. mit Hilfe von Schnecken-Dosier-Systemen und/oder Wirbelschicht-Mischern.
- Bei den Waschmitteln handelt es sich um trockene Waschmittel üblicher Zusammensetzungen. In der Regel enthalten sie neben der erfindungsgemässen Kombination aus Persäure und Aufheller, beispielsweise anionische, nicht-ionogene, amphotere und/oder kationische Tenside, Builder wie z.B. Pentanatriumtripolyphosphat oder Ersatzprodukte wie Phosphonate, Polycarboxylate, Acryl-Malein-Copolymere, Zeolithe, Nitrilotriacetat, Ethylendiaminotetraessigsäure, Schmutzsuspendiermittel wie z.B. Natriumcarboxymethylcellulose, Salze zur Einstellung des pH-Werts wie z.B. Alkali- oder Erdalkalisilikate, Schaum-Regulatoren wie z.B. Seife, Salze zur Einstellung der Sprühtrocknungs- und Granulat-Eigenschaften wie z.B. Natriumsulfat, Parfums, sowie gegebenenfalls antistatische und weichmachende Mittel, Enzyme, Photobleichmittel, Pigmente und/oder Nuancierungsmittel. Selbstverständlich sollen diese Bestandteile gegenüber dem eingesetzten Bleichsystem stabil sein.
- Dank der erfindungsgemässen Kombination ist es möglich, Waschmittel anzubieten, die dem üblichen Standard wie z.B. punkto Waschkraft, Fleckenentfernung, Erfrischung des Aussehens der gewaschenen Artikel entsprechen, auch wenn bei Temperaturen von 20°C-60°C gewaschen wird. Vorteilhafterweise können somit Buntwäsche und Weisswäsche unabhängig von der Faser zusammen gewaschen werden.
- Die nachfolgenden Beispiele erläutern die Erfindung, ohne sie darauf zu beschränken. Prozent-Angaben sind Gewichtsprozente.
- Die Waschmittel der folgenden Beispiele werden nach dem üblichen Verfahren, in zwei Stufen hergestellt:
Zuerst wird ein Granulat A durch Trocknung und Granulierung eines Slurry bestehend aus ca. 1 Teil Wasser und 1 Teil Waschmittel folgender Zusammensetzung hergestellt:84 g Lineares Dodecylbenzolsulfonat 31 g Talgalkohol-tetradecan-äthylenglykoläther (14 AeO) 37 g Na-Seife (vorwiegend aus Behen-Säure und C₁₄-C₂₀) 458 g Na-Tripolyphosphat 79 g Na-Silikat 20 g Mg-Silikat 12 g Carboxymethylcellulose 2 g Aethylendiamin-tetraacetat 222 g Na-Sulfat 1 g optische Aufheller (FWA) gemäss der Formel (I)-(II). - Zu 500 g dieses Granulats A, das nach der Trocknung eine Restfeuchte von ∼5 % aufweist, wird die Persäure B (15 g DPDDA) im trockenen Zustand homogen zugemischt.
- Proben des so erhaltenen Waschmittels W (Granulat A + Persäure B) werden:
- einerseits zur Kontrolle des Ausgangswertes, sofort durch Extraktion und spektrophotometrische Extinktions-Messung auf den Gehalt an FWA bestimmt, (theorretisch: 0.1 % FWA bezogen auf das Gewicht des Granulats A)
- andererseits in Handels-Waschpulver gerechten Karton-Paketen, d.h. mit Beschichtung, unter ausgewählten und kontrollierten Temperatur- und Luftfeuchtigkeits-Bedingungen während bestimmten Zeit-Perioden gelagert. Nach der Lagerung wird von jedem Waschmittel sofort der Gehalt an FWA bestimmt. Der Unterschied zum Ausgangswert, in Prozent ausgedrückt, ist ein Mass für die Stabilität des FWA gegenüber dem entsprechenden Bleichmittel im Waschpulver. - Die oben erwähnte FWA-Bestimmung wird wie folgt durchgeführt:
Das Waschpulver wird durch Mahlen gut homogenisiert und 1 g davon wird mit 200 ml Lösungsmittel, bestehend aus 9 Teilen Dimethylsulfoxid und 1 Teil Wasser versetzt, und bei Raumtemperatur während 30 Minuten gerührt. Dann wird während 30 Minuten zentrifugiert. Von der so erhaltenen, klaren Lösung wird eine Probe mit einer Pipette in eine 1 cm Quarz-Küvette transferiert und deren Extinktion im UV-Bereich, beim Absorptionsmaximum gegen eine Standard-Lösung des jeweiligen FWA ge messen. Die Extinktion ist der FWA-Konzentration proportional. Die Reproduzierbarkeit der Resultate liegt bei ca. ± 1 %, sofern die Test-Bedingungen genau gleich eingehalten werden. -
Claims (6)
M = Wasserstoff oder ein Aequivalent eines nicht chromophoren Kations und
n = 2 bis 4 bedeuten, und wobei (I) gegebenenfalls auch mit Resten R=Halogen, C₁-C₄-Alkyl oder C₁-C₄-Alkoxy substituiert ist.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH5027/87 | 1987-12-23 | ||
| CH502787 | 1987-12-23 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP0321715A2 true EP0321715A2 (de) | 1989-06-28 |
| EP0321715A3 EP0321715A3 (en) | 1989-08-09 |
| EP0321715B1 EP0321715B1 (de) | 1994-06-15 |
Family
ID=4286688
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP88119487A Expired - Lifetime EP0321715B1 (de) | 1987-12-23 | 1988-11-23 | Stabile, optische Aufheller enthaltende Waschmittel |
Country Status (8)
| Country | Link |
|---|---|
| EP (1) | EP0321715B1 (de) |
| JP (1) | JPH02138398A (de) |
| AU (1) | AU624094B2 (de) |
| BR (1) | BR8806216A (de) |
| DE (1) | DE3850232D1 (de) |
| ES (1) | ES2054775T3 (de) |
| MX (1) | MX169371B (de) |
| ZA (1) | ZA888794B (de) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0394998A3 (de) * | 1989-04-28 | 1991-01-09 | Ciba-Geigy Ag | Flüssigwaschmittel |
| EP0368100A3 (de) * | 1988-10-27 | 1992-08-26 | FMC Corporation | Teilchenförmige Zusammensetzung mit Bleichmittel und optischem Aufheller und deren Herstellung |
| US5279772A (en) * | 1989-04-28 | 1994-01-18 | Ciba-Geigy Corporation | Liquid detergents containing specifically disulfonated dibenzofuranyl-biphenyls as flourescent whitening agents |
| EP0548019A3 (en) * | 1991-12-19 | 1995-06-14 | Ciba Geigy Ag | Storage-stable bleach dispersion |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2065328T3 (es) * | 1987-11-26 | 1995-02-16 | Ciba Geigy Ag | Detergentes estables que contienen blanqueantes opticos. |
| GB8824108D0 (en) * | 1988-10-14 | 1988-11-23 | Unilever Plc | Bleaching & detergent compositions |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4002423A (en) * | 1971-08-13 | 1977-01-11 | Hoechst Aktiengesellschaft | Benzofuran derivatives process for their preparation and their use as optical brighteners |
| JPS529270B2 (de) * | 1973-06-14 | 1977-03-15 | ||
| ES2001074A6 (es) * | 1985-08-21 | 1988-04-16 | Clorox Co | Perfeccionamientos en la fabricacion de productos blanqueantes secos basados en diperacidos. |
| ES2065328T3 (es) * | 1987-11-26 | 1995-02-16 | Ciba Geigy Ag | Detergentes estables que contienen blanqueantes opticos. |
| GB8824108D0 (en) * | 1988-10-14 | 1988-11-23 | Unilever Plc | Bleaching & detergent compositions |
-
1988
- 1988-11-23 ES ES88119487T patent/ES2054775T3/es not_active Expired - Lifetime
- 1988-11-23 EP EP88119487A patent/EP0321715B1/de not_active Expired - Lifetime
- 1988-11-23 DE DE3850232T patent/DE3850232D1/de not_active Expired - Fee Related
- 1988-11-24 MX MX013913A patent/MX169371B/es unknown
- 1988-11-24 JP JP63294820A patent/JPH02138398A/ja active Pending
- 1988-11-24 ZA ZA888794A patent/ZA888794B/xx unknown
- 1988-11-25 BR BR888806216A patent/BR8806216A/pt unknown
- 1988-11-25 AU AU25932/88A patent/AU624094B2/en not_active Ceased
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0368100A3 (de) * | 1988-10-27 | 1992-08-26 | FMC Corporation | Teilchenförmige Zusammensetzung mit Bleichmittel und optischem Aufheller und deren Herstellung |
| EP0394998A3 (de) * | 1989-04-28 | 1991-01-09 | Ciba-Geigy Ag | Flüssigwaschmittel |
| US5279772A (en) * | 1989-04-28 | 1994-01-18 | Ciba-Geigy Corporation | Liquid detergents containing specifically disulfonated dibenzofuranyl-biphenyls as flourescent whitening agents |
| EP0548019A3 (en) * | 1991-12-19 | 1995-06-14 | Ciba Geigy Ag | Storage-stable bleach dispersion |
Also Published As
| Publication number | Publication date |
|---|---|
| DE3850232D1 (de) | 1994-07-21 |
| EP0321715A3 (en) | 1989-08-09 |
| AU2593288A (en) | 1989-07-06 |
| EP0321715B1 (de) | 1994-06-15 |
| JPH02138398A (ja) | 1990-05-28 |
| ZA888794B (en) | 1989-08-30 |
| BR8806216A (pt) | 1989-08-15 |
| ES2054775T3 (es) | 1994-08-16 |
| AU624094B2 (en) | 1992-06-04 |
| MX169371B (es) | 1993-06-30 |
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