[go: up one dir, main page]

WO1993005135A1 - Utilisation de produits fortement alcalins pour eviter le ternissement de couverts en argent dans des lave-vaisselle - Google Patents

Utilisation de produits fortement alcalins pour eviter le ternissement de couverts en argent dans des lave-vaisselle Download PDF

Info

Publication number
WO1993005135A1
WO1993005135A1 PCT/EP1992/001906 EP9201906W WO9305135A1 WO 1993005135 A1 WO1993005135 A1 WO 1993005135A1 EP 9201906 W EP9201906 W EP 9201906W WO 9305135 A1 WO9305135 A1 WO 9305135A1
Authority
WO
WIPO (PCT)
Prior art keywords
agents
tarnishing
strongly alkaline
washing
machines
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.)
Ceased
Application number
PCT/EP1992/001906
Other languages
German (de)
English (en)
Inventor
Josef Penninger
Beatrix Kottwitz
Dagmar Zaika
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Henkel AG and Co KGaA
Original Assignee
Henkel AG and Co KGaA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Henkel AG and Co KGaA filed Critical Henkel AG and Co KGaA
Priority to EP92917642A priority Critical patent/EP0600969A1/fr
Publication of WO1993005135A1 publication Critical patent/WO1993005135A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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
    • C11D3/39—Organic or inorganic per-compounds
    • C11D3/3945—Organic 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
    • C11D3/0005—Other compounding ingredients characterised by their effect
    • C11D3/0073—Anticorrosion 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
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/39—Organic or inorganic per-compounds
    • C11D3/3902—Organic or inorganic per-compounds combined with specific additives
    • C11D3/3905—Bleach activators or bleach catalysts
    • C11D3/3907—Organic compounds

Definitions

  • German patent application 1 302 394 describes dishwasher detergents which can be used in machines and which can contain alkali metal salts and a bleach activator. They also contain enzymes and therefore may only have a pH value of 7-9 instead of the usually strongly alkaline pH value.
  • strongly alkaline machine-applicable dishwashing detergents are described, which can contain, among other things, perborate with an organic bleach activator as the oxidizing agent.
  • Additives such as benzotriazole are recommended as anti-tarnish agents. Application examples for this are missing.
  • acylated organic substances can be used as activators for per compounds wherever peroxy compounds are used, for example in the passivation of aluminum or other light metal surfaces. PH values of preferably 7-11.5 are mentioned.
  • European Patent Specification 145 090 protects alkaline detergent compositions which can also be used for machine dishwashing and which contain peroxy compounds and, as an activator for them, a compound which provides manganese (II) ions in aqueous solution and sodium etasilicate and whose aqueous solutions have a pH of 9.5 - have 13. They can also contain surface-active compounds and additionally known organic peroxide activators, but this is not demonstrated by examples. The bleaching effect of the peroxy compounds on tea stains is enhanced there by the addition of manganese (II) salt activators.
  • composition of the agents used according to the invention essentially corresponds to the known alkaline, machine-applicable dishwashing agents based on peracids or per compounds such as sodium perborate or sodium percarbonate.
  • Sodium perborate monohydrate is preferred (cf. "Tenside” 27 (1990), pages 52 to 56).
  • Polymeric alkali phosphates, alkali silicates and alkali carbonates are used as builders, and small amounts of low-foaming nonionic surfactants may be added to improve the wetting effect. It is also known to replace phosphates with various organic complexing agents which also serve as builders and which include, for example, ethylenediaminetetraacetic acid and the like.
  • Suitable polymeric alkali metal phosphates are the condensed phosphates which are customarily used in washing-up and cleaning agent mixtures and which can be present in the form of their alkaline neutral or acidic sodium or potassium salts. Examples include: tetrasodium pyrophosphate, disodium dihydrogen pyrophosphate, pentasodium triphosphate, sodium hexametaphosphate and the corresponding potassium salts or mixtures of sodium and potassium salts. Their amounts are expediently in the range from 0 to about 50% by weight, preferably 0 to about 35% by weight, based on the total composition.
  • Anhydrous sodium or potassium silicates are preferably used as alkali silicates, in which the ratio of alkali oxide to silicon dioxide is approximately 1: 0.5 to 3.5, preferably 1: 1.
  • Na is the primary choice trium-potassium carbonates.
  • no more than 30 percent by weight of the alkali silicates should be replaced by alkali carbonates, since the stronger alkaline reaction achieved in this way can lead to an increased corrosion effect of the cleaner.
  • the amount of the alkali silicates in the total average is expediently about 20 to 80, preferably about 30 to 75,% by weight.
  • Anhydrous, but also water containing compounds can preferably be used as alkali metal carbonates.
  • Sodium carbonate and sodium bicarbonate the amounts of which are 3 to 30, preferably 6 to 15,% by weight, based on the total composition, are preferred.
  • Organic polymers especially polycarboxylates, which also act as co-builders, are also preferably used.
  • Polyacrylic acids and copolymers of maleic anhydride and acrylic acid and the sodium salts of these polymer acids are suitable.
  • Commercial products are e.g. B. Sokalan (R) CP 5 and PA 30 from BASF, Alcosperse (R) 175 or 177 from Alco, LMW ( R ) 45 from NorsoHAAS.
  • the foam behavior is decisive for the surfactants that can be used.
  • Low-foam connections are preferred because of the machine mechanics. These are primarily non-ionic surfactants.
  • All compounds known for this area of application in particular adducts of 4 to 10 moles of ethylene oxide or 2 to 6 moles of ethylene oxide and 2 to 6 moles of propylene oxide with C 10 -C 20 , preferably C 12 -C 18 fatty alcohols, can be used as nonionic surfactants, which can in each case be end-capped with C 1 -C 4 -n-alkyl radicals, and alkyl glucosides having 8 to 18, preferably 8 to 14 carbon atoms in the alkyl radical and 1 to 4, preferably 1 to 1.4, glucoside radicals in the molecule.
  • the total amount of surfactants in the cleaning agent is expediently from 0 to about 5, preferably from 0.5 to about 2,% by weight.
  • the cleaning agents foam too much during use, they can still contain about 0.1 to 6, preferably about 0.5 to 4% by weight of one foam-suppressing compound, preferably from the group of paraffins, hydrophobized silica and bisstearic acid amides, can be added.
  • one foam-suppressing compound preferably from the group of paraffins, hydrophobized silica and bisstearic acid amides, can be added.
  • alkali perborates and percarbonate which are activated according to the invention by activators such as, for example, tetraacethylethylenediamine, tetraacetylglycoluril, pentaacetylglucose or diacetyldioxohexahydrotriazine, can also be used as peroxy compounds, but also peracids or their salts such as alkali persulfate or magnesium monoperphthalate additive can be omitted, with additional activator being used.
  • the amounts of the peroxy compounds can be about 3 to 10, preferably about 5 to 9,% by weight, based on the total agent.
  • the amount of organic bleach activators is suitably about 0.5 to 5, preferably about 1 to 3 wt .-%, based on the total agent.
  • Manganese (II) salts are not an option here. They decompose the per connection and use it up with it. Braenstein fails.
  • the mixtures to be used can contain further components, in particular inorganic salts, such as sodium sulfate, as blending agents.
  • inorganic salts such as sodium sulfate
  • Other possible additives are substances with a buffering action, dyes, perfumes, and, if appropriate, enzyme-inactivating additives, such as ammonium chloride or the like.
  • the agents to be used according to the invention are preferably in powder form, they are packaged in a known manner by grinding and mixing the constituents. In order to achieve an intimate connection of the powder constituents, it may be appropriate to mix the powder with an aqueous solution of crystallizing salts, e.g. As sodium sulfate, or to spray one of the nonionic surfactants mentioned. This treatment also reduces the tendency of the powder to dust.
  • crystallizing salts e.g. As sodium sulfate
  • the agents to be used can be used both in household dishwashers and in commercial dishwashers. They are added by hand or using suitable dosing devices.
  • the application con concentrations in the cleaning liquor are about 0.5 to 10 g / l, preferably 2 to 5 g / l.
  • the rinse program is generally supplemented and ended by a few intermediate rinse cycles with clear water following the cleaning cycle and a rinse cycle with a customary rinse aid. After drying you get not only a completely clean and hygienically perfect tableware, but above all also practical bright silver cutlery.
  • Sokalan (R) CP 5 Acrylic acid / maleic acid copolymer from BASF
  • Plurafac R LF 403 fatty alcohol alkoxylate from BASF
  • TAED tetraacetylethylenediamine
  • DADHT 1,5-diacetyl-2,4-dioxo-hexahydro-1,3,5-triazine
  • DPDDA diperoxydodecanedioic acid
  • Example 1 The system described in Example 1 was used for testing and evaluation. The results are summarized in Table 1. The addition of Mn (II) salts did not lead to a reduction in tarnishing of silver cutlery.

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)

Abstract

La présente invention sert à éviter le ternissement de couverts en argent au cours du lavage dans des lave-vaisselle, grâce à l'utilisation de produits (pH > 11) fortement alcalins ayant une teneur en peracide ou de composés peroxy mélangés à des activateurs de blanchiment organiques et, le cas échéant, d'agents tensioactifs non ioniques peu moussants sans adjonction d'agents anticorrosion.
PCT/EP1992/001906 1991-08-29 1992-08-20 Utilisation de produits fortement alcalins pour eviter le ternissement de couverts en argent dans des lave-vaisselle Ceased WO1993005135A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP92917642A EP0600969A1 (fr) 1991-08-29 1992-08-20 Utilisation de produits fortement alcalins pour eviter le ternissement de couverts en argent dans des lave-vaisselle

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEP4128672.3 1991-08-29
DE19914128672 DE4128672A1 (de) 1991-08-29 1991-08-29 Verwendung von stark alkalischen mitteln zur verhinderung des anlaufens von silberbestecken in geschirrspuelmaschinen

Publications (1)

Publication Number Publication Date
WO1993005135A1 true WO1993005135A1 (fr) 1993-03-18

Family

ID=6439392

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1992/001906 Ceased WO1993005135A1 (fr) 1991-08-29 1992-08-20 Utilisation de produits fortement alcalins pour eviter le ternissement de couverts en argent dans des lave-vaisselle

Country Status (3)

Country Link
EP (1) EP0600969A1 (fr)
DE (1) DE4128672A1 (fr)
WO (1) WO1993005135A1 (fr)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9227020D0 (en) * 1992-12-24 1993-02-17 Solvay Interox Ltd Microbicidual compositions
US5888954A (en) * 1993-05-08 1999-03-30 Henkel Kommanditgesellschaft Auf Aktien Corrosion inhibitors for silver
DE4325039A1 (de) * 1993-07-26 1995-02-02 Benckiser Gmbh Joh A Maschinengeschirrspülmittel
DE4344215A1 (de) * 1993-12-23 1995-06-29 Cognis Bio Umwelt Silberkorrosionsschutzmittelhaltige Enzymzubereitung
US5703027A (en) * 1994-11-29 1997-12-30 The Procter & Gamble Company Monomeric rich silicate system in automatic dishwashing composition with improved glass etching
DE19701031C2 (de) * 1997-01-15 1998-12-10 Henkel Kgaa Verwendung von 3-Amino-5-alkyl-1,2,4-Triozolen als Silberschutzmittel
US6992056B1 (en) 1997-12-30 2006-01-31 Henkel Kgaa Process for preparing detergent tablets having two or more regions
US6410500B1 (en) 1997-12-30 2002-06-25 Henkel Kommanditgesellschaft Auf Aktien Moulded body dishwasher detergents with soil release polymers
DE19758262A1 (de) 1997-12-31 1999-07-08 Henkel Kgaa Alkylaminotriazolhaltige, granulare Komponente für den Einsatz in Maschinengeschirrspülmitteln (MGSM) und Verfahren zu dessen Herstellung
DE19819187A1 (de) 1998-04-30 1999-11-11 Henkel Kgaa Festes maschinelles Geschirrspülmittel mit Phosphat und kristallinen schichtförmigen Silikaten
DE10061414A1 (de) * 2000-12-09 2002-06-20 Henkel Kgaa Bleichendes Klarspülmittel I
DE10061415A1 (de) * 2000-12-09 2002-06-20 Henkel Kgaa Bleichendes Klarspülmittel II

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1158478A (en) * 1966-02-15 1969-07-16 Colgate Palmolive Co Dishwashing Composition and method of using same
US3549539A (en) * 1967-10-23 1970-12-22 Lever Brothers Ltd Dishwashing powders
EP0135226A2 (fr) * 1983-08-15 1985-03-27 Unilever N.V. Compositions enzymatiques pour les machines à laver la vaisselle
EP0145090A2 (fr) * 1983-12-06 1985-06-19 Unilever N.V. Compositions détergentes et de blanchiment
EP0318204A1 (fr) * 1987-11-19 1989-05-31 Unilever Plc Compositions pour le lavage en machine de la vaisselle
US4859358A (en) * 1988-06-09 1989-08-22 The Procter & Gamble Company Liquid automatic dishwashing compositions containing metal salts of hydroxy fatty acids providing silver protection
CH673033A5 (en) * 1987-10-26 1990-01-31 Cosmina Ag Powder dishwashing agents for dishwashing machines - contg. combination of sodium citrate and sodium salt(s) of hydroxy-ethane di:phosphonic acid with sodium silicate

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1158478A (en) * 1966-02-15 1969-07-16 Colgate Palmolive Co Dishwashing Composition and method of using same
US3549539A (en) * 1967-10-23 1970-12-22 Lever Brothers Ltd Dishwashing powders
EP0135226A2 (fr) * 1983-08-15 1985-03-27 Unilever N.V. Compositions enzymatiques pour les machines à laver la vaisselle
EP0145090A2 (fr) * 1983-12-06 1985-06-19 Unilever N.V. Compositions détergentes et de blanchiment
CH673033A5 (en) * 1987-10-26 1990-01-31 Cosmina Ag Powder dishwashing agents for dishwashing machines - contg. combination of sodium citrate and sodium salt(s) of hydroxy-ethane di:phosphonic acid with sodium silicate
EP0318204A1 (fr) * 1987-11-19 1989-05-31 Unilever Plc Compositions pour le lavage en machine de la vaisselle
US4859358A (en) * 1988-06-09 1989-08-22 The Procter & Gamble Company Liquid automatic dishwashing compositions containing metal salts of hydroxy fatty acids providing silver protection

Also Published As

Publication number Publication date
DE4128672A1 (de) 1993-03-04
EP0600969A1 (fr) 1994-06-15

Similar Documents

Publication Publication Date Title
US4049467A (en) Method and compositions for removal of hard surface manganese ion-derived discolorations
DE69829247T2 (de) Maschinengeschirrspülmittel
DE69826671T2 (de) Maschinengeschirrspülmittel enthaltend wasserlösliche kationische oder amphotere polymere
EP2113024B1 (fr) Détergent pour la vaisselle
DE69809598T3 (de) Waschmittelzusammensetzung und verfahren zum geschirrwaschen
WO1993005135A1 (fr) Utilisation de produits fortement alcalins pour eviter le ternissement de couverts en argent dans des lave-vaisselle
DE69229301T2 (de) Zeolitharmes oder zeolithfreies Waschmittel
DE60104208T2 (de) Waschmittelzusammensetzung sowie verfahren zum geschirrspuelen
DE2614148A1 (de) Oxidations-, bleich- und waschmittel mit einem gehalt an bleichaktivatoren
EP2329001A1 (fr) Mélanges de catalyseurs de blanchiment contenant des sels de manganèse et de l'acide oxalique ou ses sels
DE2614521C2 (de) Oxidations-, Bleich- und Waschmittel mit einem Gehalt an Bleichaktivatoren
DE69932580T3 (de) Bleichmittelzusammensetzung enthaltende Alkoxyliertenbenzoesäure
DE4315397A1 (de) Reinigungsmittel mit Verhinderung des Anlaufens von Tafelsilber in Geschirrspülmaschinen
DE69228223T2 (de) Maschinengeschirrspülmittel
WO1996037596A1 (fr) Agents detergents pour lave-vaisselle renfermant des agents anti-corrosion de l'argent
DE69407776T2 (de) Zusammensetzung und verfahren zur verbinderung der farbstoffübertragung
DE3807921A1 (de) Aktivator fuer anorganische perverbindungen
EP0872543A2 (fr) Composition nettoyant inhibitant la corrosion
EP0569365B1 (fr) Produit de nettoyage sans phosphates
DE4325922A1 (de) Silberkorrosionsschutzmittel I
WO1998035011A1 (fr) Utilisation dans des detergents ou des nettoyants d'additifs contenant des adjuvants
DE3304848A1 (de) Organische cyanamidverbindungen als aktivatoren fuer anorganische perverbindungen
DE602004006144T2 (de) Bleichmittel
JPH08245995A (ja) 漂白剤組成物
DE69130137T2 (de) Verfahren zur Verhinderung der Gewebeinkrustation

Legal Events

Date Code Title Description
AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): AT BE CH DE DK ES FR GB GR IE IT LU MC NL SE

DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
WWE Wipo information: entry into national phase

Ref document number: 1992917642

Country of ref document: EP

WWP Wipo information: published in national office

Ref document number: 1992917642

Country of ref document: EP

WWW Wipo information: withdrawn in national office

Ref document number: 1992917642

Country of ref document: EP