DE1806733A1 - Alkaline dish washing agent - Google Patents

Alkaline dish washing agent

Info

Publication number
DE1806733A1
DE1806733A1 DE19681806733 DE1806733A DE1806733A1 DE 1806733 A1 DE1806733 A1 DE 1806733A1 DE 19681806733 DE19681806733 DE 19681806733 DE 1806733 A DE1806733 A DE 1806733A DE 1806733 A1 DE1806733 A1 DE 1806733A1
Authority
DE
Germany
Prior art keywords
corrosion
alkaline
khco3
glasses
washing agent
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.)
Pending
Application number
DE19681806733
Other languages
German (de)
Inventor
Herbert D Sales
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.)
Evonik Operations GmbH
Original Assignee
Degussa GmbH
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 Degussa GmbH filed Critical Degussa GmbH
Priority to DE19681806733 priority Critical patent/DE1806733A1/en
Publication of DE1806733A1 publication Critical patent/DE1806733A1/en
Pending legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C11ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11DDETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D7/00Compositions of detergents based essentially on non-surface-active compounds
    • C11D7/02Inorganic compounds
    • C11D7/04Water-soluble compounds
    • C11D7/10Salts
    • C11D7/12Carbonates bicarbonates
    • CCHEMISTRY; METALLURGY
    • C11ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11DDETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/0005Other compounding ingredients characterised by their effect
    • C11D3/0073Anticorrosion compositions

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

CORROSION-INHIBITING ALKALINE RINSING AGENT G5-. For cleaning cutlery and glasses contains, in addition to known alkaline rinse components such as soda and alkali phosphate bicarbonates of mono-valent metals, e.g. KHCO3 and/or NaHCO3 as anti-corrosion substance. More specific. rinse agent contains 0.25-2 parts by wt. of anti-corrosion substance pref. KHCO3, per 1 part by wt. of known alkaline component.

Description

Korrosionshemmende alkalische Spülmittel Die Erfindung betrifft alkalische Spülmittel zum Reinigen von Geschirren und Gläsern mit einem die Querflächenkorrosion hemmenden Zusatz. Corrosion Inhibiting Alkaline Rinse Aids The invention relates to alkaline detergents Dishwashing detergent for cleaning dishes and glasses with a cross surface corrosion inhibitory additive.

Zum Reinigen von Geschirren und Gläsern werden in menden Maße Geschirrspülmaschinen verwendet, in denen das Behandlungsgut der Einwirkung stark schmutzlösender, heisser Spülmittellösungen ausgesetzt wird. Dem Spülmittel kommt dabei die Aufgabe zu, das Anweichen, Ablösen und Dispergieren der dem Behandlungsgut anhaftenden Schmutzteilchen zu erleichtern. Unter den bekannten Spülmittelsystemen zeichnen sich die alkalischen Reiniger durch besonders gute Wirksamkeit aus. Ein Nachteil der alkalischen Spülmittel besteht darin, dass sie an den Ober@@@@en der @@ Reinigenden Gegenstände Spülschäden hervorrufen können. Dishwashers are used to a large extent to clean dishes and glasses used, in which the material to be treated is strongly dirt-loosening, hotter Is exposed to detergent solutions. The task of the detergent is that Softening, detaching and dispersing of the dirt particles adhering to the item to be treated to facilitate. Among the known detergent systems, the alkaline ones stand out Cleaner is characterized by its particularly good effectiveness. A disadvantage of the alkaline detergent consists in the fact that she @@@@ en the @@ cleaning items rinsing damage can evoke.

Zu den wichtigsten Gebrauchseigenschaften von @esen en und Gläsern wird daher heute ihre Resistenz gegenüber all@@@senden Reinigungsmitteln gezählt. Spülschäden äussern sich z. B. an einem Mattwerden der Gläser oder in einem Verblassen der gegebenenfalls auf den Geschirren befindlichen farbigen Dekere. Diese Schädigung geht immer auf eine Auslaugung der Gläser bzw. der den Dekorfarben zugrunde liegenden glasigen Komponenten zurück. Beim maschinellen Spülen sind dabei die Verhältnisse besonders korrosionsfördernd, da gegenüber dem Handspülen mit schärferen Spülmitteln und bei höhere Temperaturen gearbeitet wird. To the most important properties of use of tubes and glasses Therefore, their resistance to all cleaning agents is counted today. Dishwashing damage is expressed e.g. B. in a dulling of the glasses or in a fading the colored decorations that may be on the dishes. This damage always goes to a leaching of the glasses or the underlying decor colors glassy components back. In the case of machine washing, these are the ratios Particularly corrosive as it is compared to hand washing with more harsh detergents and work is carried out at higher temperatures.

W. Geffeken weist nun in einem Aufsatz in Koll. Z. 86, 1/1939 darauf hin, dass die Hydroxide der mehrwertigen Metalle Ca, Ba, Al und Zn die Auslaugung von Gläsern im alkalischen Bereich he@men, während sich die einwerigen Kationen der Verbindungen K2SiO3 und KCl, sowie Borsäure angeblich unwirksam zeigen. Ausserdem beschreiben clie US-Patente 2 419 305, 2 241 984 und 2 447 297 die Verwendung von Beryllium-, Aluminium- bzw. Zinkverbindungen als antikorrosive Komponente von Glas-Spülmitteln. Ein beträchtlicher Nachteil dieser Antikorrosionsadditive ist, daß sie physiologisch nicht unbedenklich sind. So können auf den Gläsern zurückbleibende Spuren z. B. Allergien verursachen. W. Geffeken now points to this in an article in Coll. Z. 86, 1/1939 point out that the hydroxides of the polyvalent metals Ca, Ba, Al and Zn leach of glasses in the alkaline range are called, while the single-value cations of the compounds K2SiO3 and KCl, as well as boric acid allegedly show ineffective. Besides that describe U.S. Patents 2,419,305, 2,241,984, and 2,447,297 the use of beryllium, aluminum or zinc compounds as anti-corrosive Component of glass washing-up liquid. A significant disadvantage of these anti-corrosion additives is that they are not physiologically harmless. This allows for any residue left on the glasses Tracks z. B. cause allergies.

Es wurde nun überraschenderweise gefunden, dass Hydrogencarbonate einwertiger Metallen, wie z. B. KHCO3 und/oder NaHCO3 auch als Antikor sionsstoff wirken. Diese Verbindungen haben den Vorteil, physiologisch vollkommen unbedenklich zu sein. It has now surprisingly been found that hydrogen carbonates monovalent metals, such as B. KHCO3 and / or NaHCO3 also as an anti-corrosive substance works. These compounds have the advantage of being physiologically completely harmless to be.

Bevorzugt wird als Antikorrosionszusatz KHCO3 verwendet. Die beste Sch tewirkung erhält man, wenn auf ein Gewichtsteil bekannter alkalisch Spülmittelkomponenten, wie z. B. Aetzkali, Soda, Alkaliphos-@ 0, @5 bis 2 Gewichtsteile des Antikorrosionsstoffes angewendet werden.The preferred anti-corrosion additive used is KHCO3. The best The effect is obtained when one part by weight of known alkaline detergent components such as B. Caustic potash, soda, Alkaliphos- @ 0, @ 5 to 2 parts by weight of the anti-corrosion substance be applied.

Er indung wird anhand folgender Beispiele näher beschrieben: Beispiel 1: Im Resistenztest gemäss DIN 51035 wurde der vorbeschriebenen kochenden Spülflotte aus 1%igem Trinatriumphosphat 1 g KHCO3 pro 100 ccm Spülflotte zugesetzt. The invention is described in more detail using the following examples: Example 1: In the resistance test according to DIN 51035, the above-described boiling rinsing liquor was from 1% trisodium phosphate, 1 g of KHCO3 was added per 100 ccm of washing liquor.

Es zeigte sich an mässig resistenten Farben eine Verminderung der Korrosionsschädigung um 1/2 bis 1 Note (Bewertung nach DIN 51035), d. h. um 10% bis 20% gegenüber der Korrosionsschädigung ohne KHCO3-Zusatz. There was a decrease in the moderately resistant colors Corrosion damage by 1/2 to 1 grade (evaluation according to DIN 51035), i.e. H. at 10% up to 20% compared to the corrosion damage without the addition of KHCO3.

Beispiel 2: In einer Geschirrspülmaschine wurden der 70°C heissen Spülflotte aus 3 g Somat/Ltr. (ein von der Firma Henkel hergestelltes typisches Geschirrspülmittel) 3 g KHCO3/Ltr. zugesetzt. Es zeigte sich nach 80-stündiger Spüldauer an mässig resistenden Farben eine Verminderung der Korrosionsschädigung um 2 Noten (Bewertungsschema nach DIN 51035), d. h. um 40 % gegenüber der Korrosionsschädigung ohne KHCO3. Example 2: They were heated to 70 ° C. in a dishwasher Rinsing liquor from 3 g Somat / ltr. (a typical one manufactured by Henkel Dishwashing detergent) 3 g KHCO3 / ltr. added. It showed up after 80 hours of flushing on moderately resistant paints a reduction in corrosion damage by 2 marks (Evaluation scheme according to DIN 51035), d. H. by 40% compared to the corrosion damage without KHCO3.

Claims (2)

PatentansprücheClaims 1. Korrosionshemmende alkalische Spülmittel zum Reinigen von Geschirren und Gläsern, dadurch gekennzeichnet, dass es neben bekannten alkalischen Spülmittelkomponenten, wie z. B. Aetzkali, Soda und Alkaliphosphat, zusätzlich Hydrogencarbonate einwertiger Metalle, z. B. KHCO3 und/oder NaHCO3 als Antikorrosionsstoff enthält.1. Corrosion-inhibiting alkaline detergents for cleaning dishes and glasses, characterized in that, in addition to known alkaline detergent components, such as B. caustic potash, soda and alkali phosphate, in addition monovalent bicarbonates Metals, e.g. B. contains KHCO3 and / or NaHCO3 as an anti-corrosion agent. 2. Spülmittel nach A 1, dadurch gekennzeichnet, dass es auf 1 Gew.Teil der bekannten alkalischen Komponente 0,25 bis 2 Gew.Teile des Antikorrosionsstoffes enthält.2. Detergent according to A 1, characterized in that it is 1 part by weight the known alkaline component 0.25 to 2 parts by weight of the anti-corrosion substance contains.
DE19681806733 1968-11-02 1968-11-02 Alkaline dish washing agent Pending DE1806733A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19681806733 DE1806733A1 (en) 1968-11-02 1968-11-02 Alkaline dish washing agent

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19681806733 DE1806733A1 (en) 1968-11-02 1968-11-02 Alkaline dish washing agent

Publications (1)

Publication Number Publication Date
DE1806733A1 true DE1806733A1 (en) 1970-05-21

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Application Number Title Priority Date Filing Date
DE19681806733 Pending DE1806733A1 (en) 1968-11-02 1968-11-02 Alkaline dish washing agent

Country Status (1)

Country Link
DE (1) DE1806733A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2735787A1 (en) * 1995-06-26 1996-12-27 Rhone Poulenc Chimie USE OF CARBONATE COGRANULES AND ALKALINE METAL SILICATE AS ALKALINE AGENTS REDUCING VISIBLE CORROSION OF GLASS AND DECOR IN DETERGENT COMPOSITIONS

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2735787A1 (en) * 1995-06-26 1996-12-27 Rhone Poulenc Chimie USE OF CARBONATE COGRANULES AND ALKALINE METAL SILICATE AS ALKALINE AGENTS REDUCING VISIBLE CORROSION OF GLASS AND DECOR IN DETERGENT COMPOSITIONS
EP0751212A1 (en) * 1995-06-26 1997-01-02 Rhone-Poulenc Chimie Use of carbonate-silicate-cogranulates as corrosion inhibitors in dishwashing detergents

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