EP0871698A1 - Verfahren zur herstellung von bruchstabilen reinigungstabletten - Google Patents
Verfahren zur herstellung von bruchstabilen reinigungstablettenInfo
- Publication number
- EP0871698A1 EP0871698A1 EP96901299A EP96901299A EP0871698A1 EP 0871698 A1 EP0871698 A1 EP 0871698A1 EP 96901299 A EP96901299 A EP 96901299A EP 96901299 A EP96901299 A EP 96901299A EP 0871698 A1 EP0871698 A1 EP 0871698A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- weight
- tablets
- optionally
- alkali
- phase
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
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
- C11D3/06—Phosphates, including polyphosphates
-
- 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
- C11D17/0091—Dishwashing 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
- C11D3/08—Silicates
Definitions
- the present invention relates to a method for producing unbreakable detergent tablets, in particular for use in machine dishwashing, both in the commercial and in the household sector.
- Powder, granule or tablet detergents for dishes in dishwashers essentially consist of sodium tripolyphosphate, alkali silicate, mostly alkali metasilicate, and optionally a low-foaming, nonionic surfactant and bleaching agents, namely compounds that release active chlorine, but preferably those that are in aqueous form Dispense active oxygen solution. They are primarily used to facilitate the removal of stains from tea, coffee or fruit juices.
- the known agents are generally produced by customary production processes, such as mixing or granulating and / or further pressing.
- disk-like tablets have been produced from simple mixtures of the known detergent constituents with the addition of a tabletting aid (not specified in more detail) and using a compression pressure of about 70 to 1000 kg / cm ⁇ (7 to 100 MPa). Tablets of the type mentioned above are also described in German Offenlegungsschrift 28 57 001. They are also produced by compressing the mere mixtures of the constituents using appropriate prints.
- Lubricants, lubricants and disintegrants such as insoluble stearate salts, fatty acids, fatty alcohols, starch,
- DE 33 15 950 describes a process for the production of detergent tablets by partially hydrating anhydrous sodium tripolyphosphate to tripolyphosphate hexahydrate, mixing the partial hydrate with powdery and essentially anhydrous sodium silicate (Na2 ⁇ :
- SiO 2 1: 1 to 1: 4
- spraying the mixture with water or aqueous silicate solution, granulation by agitation with subsequent crystallization, where further detergent constituents, bleaching agents or enzymes can be admixed, sodium acetate and / or dicalcium phosphate dihydrate known as tableting aids and tableting the mixture under a pressure of more than 70 kp / cm ⁇ (7 MPa).
- the present invention therefore relates to a process for the preparation of unbreakable, alkaline detergent tablets made of pentaalkali metal triphosphate, suitable for use in dishwashers, alkali silicates, which may optionally contain water of crystallization, and optionally alkali carbonates, bleaching agents, foam inhibitors and / or enzymes and nonionic surfactants, which is characterized in that is that 15-60, preferably 25-50% by weight of pentaalkali metal phosphate in a proportion of 20-100% by weight, preferably 35-80% by weight, and in particular 40-60% by weight of phase I, 35-80, preferably 40-55% by weight alkali metal silicate, optionally containing water of crystallization, calculated as Na SiO, and optionally up to 20% by weight sodium carbonate, up to 18, preferably 1-10% by weight of a bleaching agent , up to 3, preferably 1 to 2% by weight of paraffin oil and / or up to 3% by weight of a low-foaming nonionic surfact
- phase I tripolyphosphates can be used successfully in tabletting processes in the detergent and cleaning agent sector.
- Alkali metasilicate is used in amounts of 35-80, preferably 40-55% by weight, calculated as Na2SiO3, predominantly in crystal water-free, slightly granulated form with residual water contents of up to 5% by weight, preferably 3 ⁇ 1% by weight .-% used.
- Sodium metasilicate penta- hydrate is preferred because of its higher alkalinity. Metasilicates containing water of crystallization alone would dilute the active substance content of the tablets too much.
- sodium carbonate can preferably be used in compacted form, as is commercially available.
- the amount of the optional addition of cleaning-enhancing nonionic, preferably low-foaming surfactants is up to 3% by weight, preferably 0.5-2.5% by weight, since otherwise when the tablets are used in the dishwashers in connection with the soiling of the dishes unwanted foaming can occur, which would require the addition of a foam inhibitor.
- Suitable low-foaming nonionic surfactants are the known ethoxylation products of long-chain alcohols and alkylphenols, the free hydroxyl group of the polyethylene glycol ether residue being substituted by ether or acetal groups or by polypropylene glycol ether residues to reduce the tendency to foam.
- the block polymers of ethylene oxide with polypropylene oxide are also suitable.
- the readily biodegradable surfactants are preferred.
- the bleaching agents used are preferably up to 18, preferably 1-10% by weight of compounds which release active oxygen, such as perborates and percarbonates, preferably in conjunction with bleach activators such as, for example, tetraacetylethylene diamine (TAED) or tetraacetylglycoluril (TAGU) or peracids or their salts , for example the magnesium salt of monoperphthalic acid.
- bleach activators such as, for example, tetraacetylethylene diamine (TAED) or tetraacetylglycoluril (TAGU) or peracids or their salts , for example the magnesium salt of monoperphthalic acid.
- TAED tetraacetylethylene diamine
- TAGU tetraacetylglycoluril
- peracids or their salts for example the magnesium salt of monoperphthalic acid.
- compounds which release active chlorine such as the salts of chlorine-substituted isocyanuric acids
- enzymes preferably commercial amylases and / or proteases and / or lipases and / or cutinases in quantities of 0.2 to 5, preferably 0.5 to 3,% by weight can additionally be used to improve the cleaning performance. -% are used.
- a part of the bleach-free granules can be bleached with stable dye or pigment such as e.g. Phthalocyanine, stain and then mix in together with the bleaching agents.
- Fragrances, known bactericidal and dirt-suspending agents, foam inhibitors and corrosion inhibitors can also be added.
- the cleaning agent components are mixed in known mixing devices, such as a Lödige mixer.
- Pressing tools are preferably used for pressing, the stamp surfaces of which are coated with a plastic. Caking on the pressing tools does not occur.
- the tablets obtained disintegrate perfectly even after prolonged storage.
- Essentially all known eccentric and rotary presses which can be used to produce tablets with diameters of approximately 1.0 cm and more are suitable for compressing the mixture.
- the compression pressure must be so high that break-stable tablets are formed immediately after manufacture, which tablets Blett réelle, the packaging and during transport are not damaged and disintegrate quickly in spite of these high demands on fracture stability in the application. This optimum is usually determined by the person skilled in the art by routine trial and error.
- the density of the tablets is then - for a given mixture - a consequence of the pressing pressure used.
- a compression pressure of 10 to 80, preferably 20 to 65 MPa has proven to be optimal.
- the tablets obtained by this process have an average density of 1.3-1.9 g / cm 2 and, in addition to a high breaking strength, have a uniform porous structure with a large inner surface. They therefore disintegrate particularly quickly when used in the dishwasher.
- the tablets were of a uniform structure and of great stability. To determine their dissolution rate, the tablets were moved up and down in a sieve-shaped basket in 1 liter of tap water at 16 ° C. at 50 ° C. until they had dissolved (immersion test).
- the tablets are used in commercial dishwashers, they can be added to the tank water by hand or by an automatic cleaning metering device. Since the cleaning solution is used directly, a rapid dissolution of the tablets was necessary in particular for this.
- the detergent solution was used for multiple rinses, with constant dilution by fresh water was carried out and accordingly from time to time a replenishment with new, quickly soluble tablets must be made.
- the metering was carried out in a further experiment in a commercial dishwasher (box-type drawer) via a rinse-out meter in which 2 kg of these readily soluble tablets were deposited in the form of a sieve from the storage container. By spraying water on the loosely shaken tablet piles, these were brought into solution and the active ingredient was conveyed into the rinse liquor until the required concentration was reached. The metered amount was regulated via the conductivity.
- Tripolyphosphate N modified product with about 20% phase I content
- Tripolyphosphate N40 Tripolyphosphate with 40 wt .-% phase I content
- Plurafac "" LF 403 linear fatty alcohol alkoxylate from BASF
Landscapes
- 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)
- Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
- Glanulating (AREA)
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19502774 | 1995-01-27 | ||
DE19502774A DE19502774A1 (de) | 1995-01-27 | 1995-01-27 | Verfahren zur Herstellung von bruchstabilen Reinigungstabletten |
PCT/EP1996/000200 WO1996023053A1 (de) | 1995-01-27 | 1996-01-18 | Verfahren zur herstellung von bruchstabilen reinigungstabletten |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0871698A1 true EP0871698A1 (de) | 1998-10-21 |
EP0871698B1 EP0871698B1 (de) | 2000-04-12 |
Family
ID=7752604
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP96901299A Expired - Lifetime EP0871698B1 (de) | 1995-01-27 | 1996-01-18 | Verfahren zur herstellung von bruchstabilen reinigungstabletten |
Country Status (7)
Country | Link |
---|---|
EP (1) | EP0871698B1 (de) |
AT (1) | ATE191745T1 (de) |
DE (2) | DE19502774A1 (de) |
ES (1) | ES2146382T3 (de) |
FI (1) | FI973114A (de) |
PT (1) | PT871698E (de) |
WO (1) | WO1996023053A1 (de) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4408718A1 (de) * | 1994-03-15 | 1995-09-21 | Henkel Kgaa | Bruch- und lagerstabile, polyfunktionelle Reinigungstabletten, Verfahren zu ihrer Herstellung und ihre Verwendung |
GB2318800A (en) * | 1996-11-01 | 1998-05-06 | Unilever Plc | Detergent composition |
GB9706083D0 (en) * | 1997-03-24 | 1997-05-14 | Unilever Plc | Detergent compositions |
GB9711829D0 (en) | 1997-06-06 | 1997-08-06 | Unilever Plc | Detergent compositions |
ZA984570B (en) | 1997-06-06 | 1999-11-29 | Unilever Plc | Cleaning compositions. |
DE69914582T2 (de) * | 1998-02-10 | 2004-08-05 | Unilever N.V. | Waschmittel in tablettenform |
DE19843773A1 (de) * | 1998-09-24 | 2000-03-30 | Henkel Kgaa | Wasch- und Reinigungsmittelformkörper mit feinteiligen Aufbereitungskomponenten |
FR2784392B1 (fr) * | 1998-10-09 | 2000-11-17 | Rhodia Chimie Sa | Tablettes de composition detergente ou anticalcaire et leur mise en oeuvre en lave-vaisselle ou lave-linge |
GB9826097D0 (en) * | 1998-11-27 | 1999-01-20 | Unilever Plc | Detergent compositions |
DE19859807A1 (de) * | 1998-12-23 | 2000-06-29 | Henkel Kgaa | Phosphat-Compounds |
EP1190030A1 (de) * | 1999-06-29 | 2002-03-27 | Unilever Plc | Geschirrspülmittelzusammensetzungen |
GB2390853A (en) * | 2002-07-16 | 2004-01-21 | Reckitt Benckiser Nv | Cleaning composition containing hydrophobic component |
DE102011106092B4 (de) * | 2011-06-09 | 2024-01-11 | Budich International Gmbh | Mehrphasige Reinigertablette mit integriertem Entschäumer und ihre Verwendung |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3315950A1 (de) * | 1983-05-02 | 1984-11-15 | Henkel KGaA, 4000 Düsseldorf | Verfahren zur herstellung von reinigungsmitteltabletten |
DE3541146A1 (de) * | 1985-11-21 | 1987-05-27 | Henkel Kgaa | Mehrschichtige reinigungsmitteltabletten fuer das maschinelle geschirrspuelen |
DE3634813A1 (de) * | 1986-10-13 | 1988-04-14 | Henkel Kgaa | Reinigungsmitteltabletten fuer das maschinelle geschirrspuelen |
DE4229650C1 (de) * | 1992-09-04 | 1994-01-05 | Henkel Kgaa | Verfahren zur Herstellung von Reinigungstabletten |
-
1995
- 1995-01-27 DE DE19502774A patent/DE19502774A1/de not_active Withdrawn
-
1996
- 1996-01-18 PT PT96901299T patent/PT871698E/pt unknown
- 1996-01-18 EP EP96901299A patent/EP0871698B1/de not_active Expired - Lifetime
- 1996-01-18 WO PCT/EP1996/000200 patent/WO1996023053A1/de active IP Right Grant
- 1996-01-18 AT AT96901299T patent/ATE191745T1/de not_active IP Right Cessation
- 1996-01-18 ES ES96901299T patent/ES2146382T3/es not_active Expired - Lifetime
- 1996-01-18 DE DE59604972T patent/DE59604972D1/de not_active Expired - Fee Related
-
1997
- 1997-07-25 FI FI973114A patent/FI973114A/fi unknown
Non-Patent Citations (1)
Title |
---|
See references of WO9623053A1 * |
Also Published As
Publication number | Publication date |
---|---|
WO1996023053A1 (de) | 1996-08-01 |
PT871698E (pt) | 2000-10-31 |
FI973114A0 (fi) | 1997-07-25 |
DE19502774A1 (de) | 1996-08-01 |
FI973114A (fi) | 1997-07-25 |
ATE191745T1 (de) | 2000-04-15 |
EP0871698B1 (de) | 2000-04-12 |
DE59604972D1 (de) | 2000-05-18 |
ES2146382T3 (es) | 2000-08-01 |
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