EP0971019B1 - Verfahren zur Reinigung von Geschirr - Google Patents
Verfahren zur Reinigung von Geschirr Download PDFInfo
- Publication number
- EP0971019B1 EP0971019B1 EP98114776A EP98114776A EP0971019B1 EP 0971019 B1 EP0971019 B1 EP 0971019B1 EP 98114776 A EP98114776 A EP 98114776A EP 98114776 A EP98114776 A EP 98114776A EP 0971019 B1 EP0971019 B1 EP 0971019B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cleaning
- group
- oxidizing agent
- amphoteric surfactant
- cleaning liquor
- 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.)
- Revoked
Links
- 238000004140 cleaning Methods 0.000 title claims abstract description 54
- 238000000034 method Methods 0.000 title claims abstract description 28
- 239000002280 amphoteric surfactant Substances 0.000 claims abstract description 25
- 239000007800 oxidant agent Substances 0.000 claims abstract description 23
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 11
- 239000001301 oxygen Substances 0.000 claims abstract description 11
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 11
- 238000004851 dishwashing Methods 0.000 claims abstract description 7
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims description 30
- 150000001875 compounds Chemical class 0.000 claims description 14
- 239000000203 mixture Substances 0.000 claims description 13
- 239000008139 complexing agent Substances 0.000 claims description 12
- 239000007788 liquid Substances 0.000 claims description 12
- 150000003839 salts Chemical class 0.000 claims description 11
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical group [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 7
- 239000002253 acid Substances 0.000 claims description 7
- 150000007513 acids Chemical class 0.000 claims description 7
- 239000004480 active ingredient Substances 0.000 claims description 7
- 125000004432 carbon atom Chemical group C* 0.000 claims description 7
- 239000001257 hydrogen Chemical group 0.000 claims description 6
- 229910052739 hydrogen Inorganic materials 0.000 claims description 6
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims description 6
- 229910052757 nitrogen Inorganic materials 0.000 claims description 4
- 229920000388 Polyphosphate Polymers 0.000 claims description 3
- 239000001205 polyphosphate Substances 0.000 claims description 3
- 235000011176 polyphosphates Nutrition 0.000 claims description 3
- 229910052783 alkali metal Inorganic materials 0.000 claims description 2
- 150000001340 alkali metals Chemical class 0.000 claims description 2
- 150000002431 hydrogen Chemical group 0.000 claims description 2
- MGFYIUFZLHCRTH-UHFFFAOYSA-N nitrilotriacetic acid Chemical class OC(=O)CN(CC(O)=O)CC(O)=O MGFYIUFZLHCRTH-UHFFFAOYSA-N 0.000 claims description 2
- 125000004433 nitrogen atom Chemical group N* 0.000 claims description 2
- 239000008237 rinsing water Substances 0.000 claims description 2
- 125000000547 substituted alkyl group Chemical group 0.000 claims description 2
- 125000004417 unsaturated alkyl group Chemical group 0.000 claims description 2
- 229920005646 polycarboxylate Polymers 0.000 claims 1
- 239000011521 glass Substances 0.000 abstract description 10
- 230000035622 drinking Effects 0.000 abstract 1
- 230000003993 interaction Effects 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 20
- 239000004094 surface-active agent Substances 0.000 description 14
- 239000012459 cleaning agent Substances 0.000 description 9
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 description 8
- GOOHAUXETOMSMM-UHFFFAOYSA-N Propylene oxide Chemical compound CC1CO1 GOOHAUXETOMSMM-UHFFFAOYSA-N 0.000 description 8
- 239000003795 chemical substances by application Substances 0.000 description 8
- 230000035943 smell Effects 0.000 description 8
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 7
- KWIUHFFTVRNATP-UHFFFAOYSA-N glycine betaine Chemical compound C[N+](C)(C)CC([O-])=O KWIUHFFTVRNATP-UHFFFAOYSA-N 0.000 description 6
- 239000002736 nonionic surfactant Substances 0.000 description 6
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 5
- 239000007844 bleaching agent Substances 0.000 description 5
- 238000009472 formulation Methods 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 4
- 150000001298 alcohols Chemical class 0.000 description 4
- 125000000129 anionic group Chemical group 0.000 description 4
- 150000007942 carboxylates Chemical class 0.000 description 4
- 238000001035 drying Methods 0.000 description 4
- 230000003113 alkalizing effect Effects 0.000 description 3
- 229960003237 betaine Drugs 0.000 description 3
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 3
- 125000000864 peroxy group Chemical group O(O*)* 0.000 description 3
- 239000002904 solvent Substances 0.000 description 3
- PSBDWGZCVUAZQS-UHFFFAOYSA-N (dimethylsulfonio)acetate Chemical compound C[S+](C)CC([O-])=O PSBDWGZCVUAZQS-UHFFFAOYSA-N 0.000 description 2
- SZHQPBJEOCHCKM-UHFFFAOYSA-N 2-phosphonobutane-1,2,4-tricarboxylic acid Chemical compound OC(=O)CCC(P(O)(O)=O)(C(O)=O)CC(O)=O SZHQPBJEOCHCKM-UHFFFAOYSA-N 0.000 description 2
- KFSLWBXXFJQRDL-UHFFFAOYSA-N Peracetic acid Chemical compound CC(=O)OO KFSLWBXXFJQRDL-UHFFFAOYSA-N 0.000 description 2
- 239000003945 anionic surfactant Substances 0.000 description 2
- 150000001450 anions Chemical class 0.000 description 2
- 230000000845 anti-microbial effect Effects 0.000 description 2
- 239000004599 antimicrobial Substances 0.000 description 2
- 229940096386 coconut alcohol Drugs 0.000 description 2
- 239000000645 desinfectant Substances 0.000 description 2
- 239000003599 detergent Substances 0.000 description 2
- 235000014113 dietary fatty acids Nutrition 0.000 description 2
- 239000000194 fatty acid Substances 0.000 description 2
- 229930195729 fatty acid Natural products 0.000 description 2
- 150000004665 fatty acids Chemical class 0.000 description 2
- 150000002191 fatty alcohols Chemical class 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- -1 for example Chemical class 0.000 description 2
- 239000004615 ingredient Substances 0.000 description 2
- 239000003112 inhibitor Substances 0.000 description 2
- 235000019645 odor Nutrition 0.000 description 2
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 2
- 229910000029 sodium carbonate Inorganic materials 0.000 description 2
- 239000001509 sodium citrate Substances 0.000 description 2
- NLJMYIDDQXHKNR-UHFFFAOYSA-K sodium citrate Chemical compound O.O.[Na+].[Na+].[Na+].[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O NLJMYIDDQXHKNR-UHFFFAOYSA-K 0.000 description 2
- 229940079842 sodium cumenesulfonate Drugs 0.000 description 2
- 239000012418 sodium perborate tetrahydrate Substances 0.000 description 2
- IBDSNZLUHYKHQP-UHFFFAOYSA-N sodium;3-oxidodioxaborirane;tetrahydrate Chemical compound O.O.O.O.[Na+].[O-]B1OO1 IBDSNZLUHYKHQP-UHFFFAOYSA-N 0.000 description 2
- QEKATQBVVAZOAY-UHFFFAOYSA-M sodium;4-propan-2-ylbenzenesulfonate Chemical compound [Na+].CC(C)C1=CC=C(S([O-])(=O)=O)C=C1 QEKATQBVVAZOAY-UHFFFAOYSA-M 0.000 description 2
- 238000004659 sterilization and disinfection Methods 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229940117986 sulfobetaine Drugs 0.000 description 2
- 239000008399 tap water Substances 0.000 description 2
- 235000020679 tap water Nutrition 0.000 description 2
- GPXCJKUXBIGASD-UHFFFAOYSA-N 1-phosphonobutane-1,2,4-tricarboxylic acid Chemical compound OC(=O)CCC(C(O)=O)C(C(O)=O)P(O)(O)=O GPXCJKUXBIGASD-UHFFFAOYSA-N 0.000 description 1
- AEQDJSLRWYMAQI-UHFFFAOYSA-N 2,3,9,10-tetramethoxy-6,8,13,13a-tetrahydro-5H-isoquinolino[2,1-b]isoquinoline Chemical compound C1CN2CC(C(=C(OC)C=C3)OC)=C3CC2C2=C1C=C(OC)C(OC)=C2 AEQDJSLRWYMAQI-UHFFFAOYSA-N 0.000 description 1
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- JBVOQKNLGSOPNZ-UHFFFAOYSA-N 2-propan-2-ylbenzenesulfonic acid Chemical compound CC(C)C1=CC=CC=C1S(O)(=O)=O JBVOQKNLGSOPNZ-UHFFFAOYSA-N 0.000 description 1
- XSVSPKKXQGNHMD-UHFFFAOYSA-N 5-bromo-3-methyl-1,2-thiazole Chemical compound CC=1C=C(Br)SN=1 XSVSPKKXQGNHMD-UHFFFAOYSA-N 0.000 description 1
- FPXLKVLNXFUYQU-UHFFFAOYSA-N CCO.OP(=O)OP(O)=O Chemical compound CCO.OP(=O)OP(O)=O FPXLKVLNXFUYQU-UHFFFAOYSA-N 0.000 description 1
- KCXVZYZYPLLWCC-UHFFFAOYSA-N EDTA Chemical class 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
- SXRSQZLOMIGNAQ-UHFFFAOYSA-N Glutaraldehyde Chemical compound O=CCCCC=O SXRSQZLOMIGNAQ-UHFFFAOYSA-N 0.000 description 1
- 239000004435 Oxo alcohol Substances 0.000 description 1
- OFOBLEOULBTSOW-UHFFFAOYSA-N Propanedioic acid Natural products OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 1
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 1
- ZZXDRXVIRVJQBT-UHFFFAOYSA-M Xylenesulfonate Chemical compound CC1=CC=CC(S([O-])(=O)=O)=C1C ZZXDRXVIRVJQBT-UHFFFAOYSA-M 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 239000012190 activator Substances 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 229910001854 alkali hydroxide Inorganic materials 0.000 description 1
- 150000008044 alkali metal hydroxides Chemical class 0.000 description 1
- 229910052910 alkali metal silicate Inorganic materials 0.000 description 1
- 150000001447 alkali salts Chemical class 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 150000001449 anionic compounds Chemical class 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 239000004202 carbamide Substances 0.000 description 1
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 1
- 125000002091 cationic group Chemical group 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000000536 complexating effect Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 229940071118 cumenesulfonate Drugs 0.000 description 1
- VTIIJXUACCWYHX-UHFFFAOYSA-L disodium;carboxylatooxy carbonate Chemical compound [Na+].[Na+].[O-]C(=O)OOC([O-])=O VTIIJXUACCWYHX-UHFFFAOYSA-L 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 239000004088 foaming agent Substances 0.000 description 1
- 239000013505 freshwater Substances 0.000 description 1
- 150000002334 glycols Chemical class 0.000 description 1
- 159000000011 group IA salts Chemical class 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 150000002484 inorganic compounds Chemical class 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 description 1
- 239000011976 maleic acid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- JZMJDSHXVKJFKW-UHFFFAOYSA-M methyl sulfate(1-) Chemical compound COS([O-])(=O)=O JZMJDSHXVKJFKW-UHFFFAOYSA-M 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 235000010755 mineral Nutrition 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000020477 pH reduction Effects 0.000 description 1
- HWGNBUXHKFFFIH-UHFFFAOYSA-I pentasodium;[oxido(phosphonatooxy)phosphoryl] phosphate Chemical compound [Na+].[Na+].[Na+].[Na+].[Na+].[O-]P([O-])(=O)OP([O-])(=O)OP([O-])([O-])=O HWGNBUXHKFFFIH-UHFFFAOYSA-I 0.000 description 1
- 150000004968 peroxymonosulfuric acids Chemical class 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 229910000027 potassium carbonate Inorganic materials 0.000 description 1
- 159000000001 potassium salts Chemical class 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000008213 purified water Substances 0.000 description 1
- 125000001453 quaternary ammonium group Chemical group 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000176 sodium gluconate Substances 0.000 description 1
- 235000012207 sodium gluconate Nutrition 0.000 description 1
- 229940005574 sodium gluconate Drugs 0.000 description 1
- DZCAZXAJPZCSCU-UHFFFAOYSA-K sodium nitrilotriacetate Chemical compound [Na+].[Na+].[Na+].[O-]C(=O)CN(CC([O-])=O)CC([O-])=O DZCAZXAJPZCSCU-UHFFFAOYSA-K 0.000 description 1
- 229940045872 sodium percarbonate Drugs 0.000 description 1
- 159000000000 sodium salts Chemical class 0.000 description 1
- 235000019832 sodium triphosphate Nutrition 0.000 description 1
- MWNQXXOSWHCCOZ-UHFFFAOYSA-L sodium;oxido carbonate Chemical compound [Na+].[O-]OC([O-])=O MWNQXXOSWHCCOZ-UHFFFAOYSA-L 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 125000001273 sulfonato group Chemical group [O-]S(*)(=O)=O 0.000 description 1
- 150000003512 tertiary amines Chemical group 0.000 description 1
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 1
- 239000001226 triphosphate Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
- 229940071104 xylenesulfonate Drugs 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
- C11D3/39—Organic or inorganic per-compounds
- C11D3/3947—Liquid compositions
-
- 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
- C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
- C11D1/88—Ampholytes; Electroneutral compounds
- C11D1/90—Betaines
-
- C11D2111/18—
Definitions
- the present invention relates to the use of a cleaning liquor containing an amphoteric surfactant and an oxidizing agent having active oxygen, at the cleaning of dishes, a method of cleaning dishes, in particular of glasses, primarily in the commercial sector and here again in the appropriate dishwashing machines should be used, as well as a appropriate cleaning agent.
- the cleaned dishes are particularly liable in the commercial sector the glasses, even after drying, a peculiar smell that is often perceived as disturbing.
- the causes of this smell are largely unknown, but there are assumptions that the reuse of the Liquors and the use of treated or recovered water to an accumulation of disruptive components in the cleaning liquors leads that adhere to the ceramic surfaces, especially on glasses stay.
- the adhering smell is partly lost even when it is stored open Dishes are very slow and are particularly annoying with glasses, if it is immediately used again for drinks that have only a weak intrinsic smell, such as Mineral water and wine.
- WO-A-97/31092 disinfectants are described, the one Peroxygen bleach, a betaine or sulfobetaine surfactant and one contain antimicrobial compound.
- Such formulations are used for Disinfection and cleaning of hard surfaces such as glass and Dishes.
- WO-A-97/31093 relates to disinfectants containing a peroxygen bleach, an amphoteric surfactant, glutaraldehyde and an antimicrobial effective oil. Such formulations are also used for disinfection and Cleaning hard surfaces such as glass and dishes, for example.
- EP-A-0 670 364 describes liquid bleaching agent formulations which, in addition to Hydrogen peroxide contain a surfactant and a bleach activator.
- surfactants nonionic, anionic or amphoteric surfactants are particularly suitable.
- EP-A-0 805 198 relates to cleaning agents containing an amine oxide and a Betaine or a sulfobetaine surfactant.
- Other preferred ingredients are Solvents, antimicrobial compounds and peroxygen bleach. Such formulations are used to clean hard surfaces.
- the present invention was based on the object, the previously known Process for cleaning dishes, especially glasses, with a view to to significantly improve the appearance of unpleasant smells and that Avoid the occurrence of such odors if possible.
- the present invention relates to the use of a Cleaning liquor containing an amphoteric surfactant and an active oxygen oxidizing agent, to reduce or avoid unpleasant smells when cleaning dishes.
- the present invention relates to a method for cleaning Tableware, in which the dishes are treated with a cleaning liquor, the one contains amphoteric surfactant and an oxidizing agent having active oxygen, then rinsed and then dried, characterized in that Ampotensid and oxidizing agent separately for the preparation of the cleaning liquor is used. Otherwise, the new procedure largely corresponds to that conventional machine dishwashing methods, such as those in particular are common in the commercial sector.
- amphoteric surfactants used in the cleaning liquor of the process according to the invention are compounds which, in addition to a long-chain alkyl radical, have a tertiary amine function or a quaternary ammonium function and one or more anionic groups in the molecule, the anionic groups preferably being carboxylate or sulfonate groups.
- the amphoteric surfactants are distinguished by the fact that they are cationic in the acidic range, while they are present in the alkaline range as betaine or as an anionic compound.
- amphoteric surfactants which have one or more carboxyl or carboxylate groups and from these in turn those surfactants which correspond to the formula I described below.
- the second essential component of the cleaning liquor used it is an oxidizing agent based on oxygen, that is one peroxidic compound.
- Inorganic peroxy compounds are preferred, in principle, however, organic peroxy compounds, in particular peroxycarboxylic acids, are also such as peracetic acid.
- inorganic Peroxy compounds come, for example, salts of peroxysulfuric acids, but especially hydrogen peroxide and such compounds into consideration Release hydrogen peroxide in aqueous solution.
- Examples of such hydrogen peroxide releasing compounds are in particular the perborates all sodium perborate monohydrate and sodium perborate tetrahydrate and addition compounds of hydrogen peroxide to inorganic compounds, in particular the addition compound of sodium carbonate and hydrogen peroxide, which is also referred to as percarbonate, and optionally also addition compounds of hydrogen peroxide to organic compounds, for example Urea or sodium citrate. Hydrogen peroxide is particularly preferred as well as the perborates and sodium percarbonate.
- the amount of the Oxidizing agent depends on its active oxygen content, which in turn from Molecular weight of the oxidizing agent depends. So is the active oxygen content in hydrogen peroxide, for example, 47%, while in sodium perborate tetrahydrate Is 10.4%.
- the concentration of oxidizing agent in the cleaning liquor should preferably be chosen so that the active oxygen content in the fleet between 1 and 500 ppm and in particular between 5 and is 250 ppm.
- the cleaning liquor contains those in the process according to the invention
- other active ingredients are used and / or auxiliaries, such as those in cleaning liquors for dishwashing are common in themselves.
- auxiliaries such as those in cleaning liquors for dishwashing are common in themselves.
- These include in particular complexing agents, but also alkalizing active compounds, surfactants of other classes, corrosion inhibitors, Solubilizers, foam inhibitors and enzymes.
- the complexing agents are compounds which are particularly found in are able to complex the components of water hardness and thereby to rule out conditional faults on the cleaning process. They reinforce continue the cleaning effect of the surfactants.
- Suitable complexing agents are the polyphosphates, especially pentasodium triphosphate, the salts of Polycarboxylic acids, especially sodium citrate, sodium gluconate and the salts of phosphonobutane tricarboxylic acid, the salts of polyphosphonic acids, for example of 2-hydroxyethane diphosphonic acid, the salts of ethylenediaminetetraacetic acid and the salts of polymeric polycarboxylic acids, in particular of acrylic acid polymerization products, optionally in combination with maleic acid.
- Alkali salts are usually used, of which again the potassium salts and especially the sodium salts are preferred.
- the salts in the wash liquor can also be obtained from the complexing acids and added alkalizing agent.
- the amount of complexing agent depends on the action of the individual substances and can be very different. So complexing agents like the polyphosphates, the carboxylates and the salts of nitrilotriacetic acid in usually higher amounts used than from the others mentioned Complexing agents. Of course, the simultaneous presence of several complexing agents in the wash liquor possible and desirable.
- the total content of complexing agents in the cleaning liquor is preferably between about 0.01 g / l and about 10 g / l, in particular between about 0.03 g / l and about 5 g / l.
- a very particularly preferred range is between about 0.1 g / l and about 2 g / l.
- the pH of the cleaning liquor used according to the invention is alkaline Range, that is, above pH 7.
- a preferred pH range is Range between about 8 and about 10, but can use more alkaline detergents in the cleaning liquor also a pH value far above, for example in Create range 10 to 13.
- alkalizing substances added such as alkali hydroxides, especially sodium hydroxide, Alkali silicates and / or other alkaline salts, such as Sodium carbonate and potassium carbonate.
- the salary in the wash liquor judges the desired alkalinity.
- nonionic surfactants in particular the addition products from long-chain alcohols with 10 to 18 carbon atoms and ethylene oxide (EO) and optionally also propylene oxide (PO).
- EO ethylene oxide
- PO propylene oxide
- Long-chain alcohols are especially unsaturated Fatty alcohols, for example coconut alcohol, or the so-called Oxo alcohols, which can be branched to some extent, are contemplated.
- the addition products are also suitable as nonionic surfactants Ethylene oxide and optionally propylene oxide and other long-chain compounds, for example alkylphenols, fatty acids, fatty acid amides and long-chain Glycols.
- the addition products are particularly low-foaming surfactants from long-chain alcohols with ethylene oxide and optionally propylene oxide, whose free hydroxyl group with a short-chain alcohol, which is preferably 1 has up to 4 carbon atoms, is etherified.
- the content of this in the cleaning liquor additional surfactants is preferably between about 0.01 g / l and about 8 g / l, in particular between 0.02 g / l and 1 g / l.
- the cleaning liquor used according to the invention can be produced by the fact that each active ingredient contained separately from the water Cleaning liquor is added.
- each active ingredient contained separately from the water Cleaning liquor is added.
- pre-made cleaning agents to use, each one of the required ingredients in the right Ratio contained in a correspondingly higher concentration, and this Dilute agent with water, if necessary with the addition of the other active ingredients.
- the cleaning agents can be in solid form, but also for example be formulated as a paste or as liquids. Especially then if there are incompatibilities between the oxidizing agent and individual recipe components occur, it may be appropriate to run through the cleaning liquor
- two separate agents one of which is the oxidizer and the other contains the oxidation sensitive component.
- a separation into at least two agents in the process according to the invention can also be used if the dosage of the amphoteric Surfactant and the dosage of the oxidizing agent at different Points of the cleaning cycle should take place and the union to the finished Cleaning liquor is only reached through the process.
- Another object of the invention is therefore also a cleaning agent set of two liquid agents, one of which one contains the amphoteric surfactant and the other contains the oxidizing agent.
- this contains one liquid means the amphoteric surfactant in amounts between 0.5 % By weight and 80% by weight, in particular in amounts between 4% by weight and 20% by weight, optionally together with other cleaning agents, especially complexing agents and other surfactants.
- the other one Both liquid agents from this cleaning agent kit contain hydrogen peroxide, in concentrations from 0.1% by weight to 50% by weight, in particular 0.5 wt .-% to 35 wt .-%, and optionally further active ingredients and auxiliaries, in particular complexing agents, stabilizers and other surfactants.
- the liquid agents can contain solubilizers, for example cumene sulfonate, xylene sulfonate or lower alcohols with 1 to 3 carbon atoms if this is appropriate for a stable formulation.
- Water of various qualities can be used to produce the wash liquors especially tap water, partially softened or fully desalinated Tap water from water treatment plants or, if necessary, water from wastewater treatment. Depending on the type of machine, there will also be water from the downstream rinse cycles to produce the cleaning liquor used, this water then also active ingredients for rinsing have been used, or may contain acidulants.
- the oxidizing agent is a variant of the cleaning method according to the invention, or a composition containing this oxidizing agent, added to one of the rinsing baths and then in the form of this Rinsing liquor used to manufacture the actual cleaning liquor.
- the cleaning liquor is usually applied to the dishes elevated temperatures, especially at temperatures between about 30 and about 70 ° C.
- the exposure time of the liquor to the dishes is preferably in the range from about 5 to about 360 seconds. Temperature and cleaning time will be essentially determined and depend on the desired cleaning result thus additionally from the composition of the cleaning liquor and the applied mechanics.
- Connects to the treatment with the cleaning liquor at least one rinse cycle in which the Cleaning liquor is removed from the dishes again.
- a so-called rinse aid is added to the rinse cycles to ensure that the Wetting the items to be washed and possibly also acidification.
- Such rinsing agents preferably contain low-foaming agents nonionic surfactants, optionally together with complexing agents Acids, especially citric acid.
- the rinsing liquid is at least in the last Rinse cycle, preferably to higher temperatures, especially between heated about 50 and about 95 ° C to bring the dishes to a temperature, which shortens the subsequent drying step by allowing evaporation the adhering liquid accelerates.
Abstract
Description
Zum Ansetzen der Flotte wurde vollentsalztes Wasser aus einer Aufbereitungsanlage verwendet. Die Temperatur der Reinigungsflotte lag bei 55 °C. Die Flotte wurde im Umwälzverfahren über Düsen auf das Geschirr aufgesprüht und wirkte 90 Sekunden lang auf das Geschirr ein. Im abschließenden Klarspülgang, der bei 75 °C durchgeführt wurde, enthielt die Spülflüssigkeit 0,8 g/l eines Klarspülmittels C der folgenden Zusammensetzung:
Claims (9)
- Verwendung einer Reinigungsflotte, enthaltend ein amphoteres Tensid und ein Aktivsauerstoff aufweisendes Oxidationsmittel, zur Minderung oder zur Vermeidung von unangenehmen Nachgerüchen bei der Reinigung von Geschirr.
- Verfahren zur Reinigung von Geschirr, bei dem das Geschirr mit einer Reinigungsflotte behandelt wird, die ein amphoteres Tensid und ein Aktivsauerstoff aufweisendes Oxidationsmittel enthält, dann gespült und anschließend getrocknet wird, dadurch gekennzeichnet, daß Amphotensid und Oxidationsmittel getrennt zur Zubereitung der Reinigungsflotte eingesetzt wird.
- Verfahren nach Anspruch 2, bei dem das Amphotensid ausgewählt ist aus der Gruppe der Verbindungen der allgemeinen Formel I In dieser Formel I bedeuten:R eine langkettige, gegebenenfalls verzweigte oder ungesättigte Alkylgruppe mit 8 bis 18 C-Atomen oder eine Gruppe R3-CO-NH-(CH2)Z-,R1 eine Methylgruppe, Wasserstoff oder eine Gruppe (CH2)x - CO2YR2 eine Methylgruppe, eine Gruppe (CH2)2 - OH oder Wasserstoff (wobei dann das Stickstoffatom eine positive Ladung trägt) oder R2 ist nicht vorhanden,R3 eine langkettige, gegebenenfalls ungesättigte und gebenenfalls substituierte Alkylgruppe mit 7 bis 17 C-Atomen,x einen der Werte 1 oder 2,z einen der Werte 2 oder 3 undY Wasserstoff, ein Alkalimetall oder eine negative Ladung.
- Verfahren nach einem der Ansprüche 2 oder 3, bei dem das Oxidationsmittel ausgewählt ist aus der Gruppe Wasserstoffperoxid, Wasserstoffperoxid freisetzende Verbindungen und deren Gemische.
- Verfahren nach einem der Ansprüche 2 bis 4, bei dem die Reinigungsflotte zusätzlich wenigstens einen Komplexbildner aus der Gruppe Polyphosphate, Polycarboxylate, Salze der Nitrilotriessigsäure, Polyphosphonate und Salze von polymeren Polycarbonsäuren enthält.
- Verfahren nach einem der Ansprüche 2 bis 5, bei dem der Gehalt an Amphotensid in der Reinigungsflotte 0,01 g/l bis 8 g/l, vorzugsweise 0,03 g/l bis 3 g/l und insbesondere 0,1 g/l bis 1,5 g/l beträgt.
- Verfahren nach einem der Ansprüche 2 bis 6, bei dem der Gehalt an Oxidationsmittel, gerechnet als Aktivsauerstoff, in der Flotte 1 bis 500 ppm, vorzugsweise 5 bis 250 ppm beträgt.
- Verfahren nach einem der Ansprüche 2 bis 7, bei dem das Oxidationsmittel einem der Nachspülgänge des Verfahrens zugesetzt wird und mit dem Überlauf der Nachspülflüssigkeit in die Reinigungsflotte gelangt.
- Reinigungsmittelsatz zur Herstellung einer Reinigungsflotte für ein Verfahren gemäß einem der Ansprüche 2 bis 8, bestehend aus einem flüssigen Mittel, enthaltend amphoteres Tensid, vorzugsweise entsprechend Formel I, in Mengen zwischen 0,5 und 80 Gew.-%, insbesondere in Mengen zwischen 4 und 20 Gew.-%, sowie gegebenenfalls weitere Wirkstoffe und Hilfsstoffe, und einem weiteren flüssigen Mittel, enthaltend Wasserstoffperoxid in Konzentrationen von 0,1 bis 50 Gew.-%, insbesondere von 0,5 bis 35 Gew.-%, sowie gegebenenfalls weitere Wirkstoffe und Hilfsstoffe.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19824356A DE19824356A1 (de) | 1998-05-30 | 1998-05-30 | Verfahren zur Reinigung von Geschirr |
DE19824356 | 1998-05-30 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0971019A1 EP0971019A1 (de) | 2000-01-12 |
EP0971019B1 true EP0971019B1 (de) | 2001-02-28 |
Family
ID=7869489
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98114776A Revoked EP0971019B1 (de) | 1998-05-30 | 1998-08-06 | Verfahren zur Reinigung von Geschirr |
Country Status (7)
Country | Link |
---|---|
EP (1) | EP0971019B1 (de) |
AT (1) | ATE199388T1 (de) |
DE (2) | DE19824356A1 (de) |
DK (1) | DK0971019T3 (de) |
ES (1) | ES2156015T3 (de) |
GR (1) | GR3035529T3 (de) |
PT (1) | PT971019E (de) |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE468013B (sv) * | 1991-08-16 | 1992-10-19 | Kommentus Ecogreen Ab | Maskindiskmedel och dess framstaellning |
DE69225246T2 (de) * | 1992-11-18 | 1998-09-17 | Kao Corp | Flüssige bleichmittelzusammensetzung |
EP0694058A1 (de) * | 1993-04-27 | 1996-01-31 | The Procter & Gamble Company | Flüssiges oder körniges machinengeschirrspülmittel |
JP3422854B2 (ja) * | 1994-09-22 | 2003-06-30 | 花王株式会社 | 粉末漂白剤組成物 |
TR199801336T2 (xx) * | 1996-02-23 | 1998-10-21 | The Procter & Gamble Company | Dezenfekte edici bile�imler. |
PL327945A1 (en) * | 1996-02-23 | 1999-01-04 | Procter & Gamble | Disinfecting compositions and methods of disinfecting surfaces |
EP0805198A1 (de) * | 1996-05-03 | 1997-11-05 | The Procter & Gamble Company | Reinigungszusammensetzungen |
EP0835925A3 (de) * | 1996-09-09 | 1999-01-27 | Unilever N.V. | Maschinengeschirrspülmittelzusammensetzung enthaltend amphotere Polymere |
-
1998
- 1998-05-30 DE DE19824356A patent/DE19824356A1/de not_active Withdrawn
- 1998-08-06 DK DK98114776T patent/DK0971019T3/da active
- 1998-08-06 AT AT98114776T patent/ATE199388T1/de not_active IP Right Cessation
- 1998-08-06 EP EP98114776A patent/EP0971019B1/de not_active Revoked
- 1998-08-06 ES ES98114776T patent/ES2156015T3/es not_active Expired - Lifetime
- 1998-08-06 DE DE59800499T patent/DE59800499D1/de not_active Expired - Fee Related
- 1998-08-06 PT PT98114776T patent/PT971019E/pt unknown
-
2001
- 2001-03-08 GR GR20010400368T patent/GR3035529T3/el not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
ATE199388T1 (de) | 2001-03-15 |
GR3035529T3 (en) | 2001-06-29 |
PT971019E (pt) | 2001-08-30 |
EP0971019A1 (de) | 2000-01-12 |
DE59800499D1 (de) | 2001-04-05 |
DE19824356A1 (de) | 1999-12-02 |
ES2156015T3 (es) | 2001-06-01 |
DK0971019T3 (da) | 2001-06-05 |
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