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
  • C11D3/12—Water-insoluble compounds
  • C11D3/122—Sulfur-containing, e.g. sulfates, sulfites or gypsum
• • 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
  • C11D3/12—Water-insoluble compounds
  • C11D3/1213—Oxides or hydroxides, e.g. Al2O3, TiO2, CaO or Ca(OH)2
• • 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
  • C11D3/12—Water-insoluble compounds
  • C11D3/1233—Carbonates, e.g. calcite or dolomite
• • 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
  • C11D3/12—Water-insoluble compounds
  • C11D3/124—Silicon containing, e.g. silica, silex, quartz or glass beads
  • C11D3/1246—Silicates, e.g. diatomaceous earth
  • C11D3/1253—Layer silicates, e.g. talcum, kaolin, clay, bentonite, smectite, montmorillonite, hectorite or attapulgite
  • C11D3/126—Layer silicates, e.g. talcum, kaolin, clay, bentonite, smectite, montmorillonite, hectorite or attapulgite in solid 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
  • C11D3/16—Organic compounds
  • C11D3/38—Products with no well-defined composition, e.g. natural products
  • C11D3/386—Preparations containing enzymes, e.g. protease or amylase
  • C11D3/38672—Granulated or coated enzymes
• • 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

Definitions

• the invention relates to machine-friendly dishwashing detergents for machine washing dishes, in particular to those dishwashing detergents which contain enzymes and are in solid form.
• Modern dishwashing detergents contain enzymes and these enzymes are granulated with the help of solids. Granulated enzymes have an unsightly color and would therefore interfere in a clean white dishwashing detergent in solid form. To meet consumer expectations, the enzymes are therefore provided with a white pigment, in particular titanium dioxide, or granulated with the aid of the latter. It has now been found by the inventors that this titanium dioxide, which is usually in the form of rutile or anatase, is insoluble in water and has great hardness (rutile hardness 6-6.5, anatase hardness 6-6.5) for damaging the Mechanical seals is responsible because these insoluble substances have a hardness that is higher than that of mechanical seals, which are often made of a carbon material.
• the object underlying the invention is to provide a machine dishwashing detergent which is gentle on the machine and does not cause damage to the dishwashers.
• the solution to this problem according to the invention is to provide a dishwashing detergent which is largely free of crystalline, insoluble constituents with a hardness which is higher than that of the mechanical seals, i.e.
• the dishwashing detergent according to the invention should be largely free of crystalline, insoluble constituents with a hardness of more than 5.0, preferably more than 2.5, in particular more than 1.5.
• the invention thus relates to a machine-friendly dishwashing detergent for machine washing dishes, containing one or more enzymes, a white pigment and other customary constituents, and is characterized in that that it is in solid form, contains 0.5-10% by weight of one or more enzymes which are granulated with the aid and / or with the addition of a white pigment and optionally other solids which are soluble in water or have a hardness of 5, 0 or less, preferably 2.5 or less and in particular 1.5 or less, and that it contains no crystalline, insoluble constituents with a hardness of more than 5.0, preferably more than 2.5 and in particular more than 1.5.
• DE-A-34 28 848 relates to dishwashing detergents, which can also contain enzymes.
• Enzymes such as the commercial products Maxamyl ® or Maxatase ® are recommended for use, which traditionally always contain titanium dioxide as a white pigment.
• Certain extender such as sodium sulfate, sodium chloride, alkali phosphate or alkali polyphosphate can also be added to the enzymes as extenders or diluents.
• DE-A-13 02 394 discloses dishwashing detergents which contain amylolytic enzymes.
• DE-A-27 30 481 describes the production of granulated enzymes, as are usually also used in modern dishwashing detergents, with the use of titanium dioxide. According to JP 84-226911, enzyme granules are coated with a titanium dioxide pigment.
• JP 84-213669 is another example of the large number of documents which describe the granulation of enzymes and which all use titanium dioxide as a whitening agent.
• talc hardness about 1 or kaolin (hardness about 2) or calcium sulfate (hardness dihydrate 1.5-2, anhydrous 3-3.5) or, less preferably, calcium carbonate (hardness about 3 ) used.
• Dishwashing detergents which, according to the invention, are largely free of crystalline, insoluble constituents are understood to mean those which ideally contain none, generally less than 0.01% by weight and at least less than 0.1% by weight of the disruptive insoluble constituents.
• Insoluble constituents which have a hardness which is higher than the hardness of the mechanical seals which come into contact with the washing liquor in the dishwasher, in particular as such with a hardness of more than 5.0, preferably more than 2.5 or, are disruptive. better of over 1.5.
• certain insoluble components can be present and are harmless. These include, in particular, amorphous insoluble components and substances such as talcum or kaolinite, which can even have a lubricating effect.
• the zeolites used as builders also do not interfere in many cases.
• the dishwashing detergent according to the invention should not contain any crystalline, insoluble constituents at all in addition to the white pigment, certain insoluble constituents, such as are used in particular in conventional dishwashing detergents as decor protection or as a builder, can be tolerated under certain circumstances.
• Aminopolycarboxylic acids or their salts such as those contained in large quantities in the dishwashing detergent disclosed in DE-A-20 62 465, should not be present at all in the dishwashing detergent according to the invention.
• the dishwashing detergent according to the invention can contain a chlorine-free bleaching agent based on oxygen, preferably perborate or percarbonate.
• the dishwashing detergents according to the invention contain the usual constituents, such as, for example, alkali metal tripolyphosphate, alkali disilicate, alkali metal carbonate or bicarbonate, bleach activators such as TAED, provided, as preferred, they contain an oxygen bleaching agent such as, for example, alkali metal perborate or alkali metal percarbonate, a nonionic surfactant and other customary constituents.
• Phosphate-free dishwashing detergents can be formulated using a phosphate-free builder, such as citrate and / or the usual polymers.
• the dishwashing detergents according to the invention are in solid form and all amounts relate to solid compositions.
• a typical dishwashing detergent according to the present invention is characterized in that it is in solid form, 3-30% by weight, preferably 5-15% by weight of an oxygen-based bleaching agent such as a peroxide or percarbonate, 0-6% by weight, preferably 0 , 2-5% by weight of a nonionic surfactant and a suitable builder, and 0.5-10% by weight, preferably 1-5% by weight of one or more enzymes, which are granulated with the aid and / or with the addition of a white pigment and optionally other solids, which are soluble in water or a hardness of 2.5 or less, preferably 1.5 or have below contains.
• an oxygen-based bleaching agent such as a peroxide or percarbonate
• 0-6% by weight preferably 0
• 2-5% by weight of a nonionic surfactant and a suitable builder preferably 0.5-10% by weight, preferably 1-5% by weight of one or more enzymes, which are granulated with the aid and / or with the addition of a white

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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)

Applications Claiming Priority (2)

Publications (3)

Family

ID=6463522

Family Applications (1)

Country Status (4)

Family Cites Families (4)

• 1993
  • 1993-07-15 AT AT93111380T patent/ATE174377T1/de active
  • 1993-07-15 ES ES93111380T patent/ES2127769T3/es not_active Expired - Lifetime
  • 1993-07-15 EP EP93111380A patent/EP0579230B1/fr not_active Revoked
  • 1993-07-15 DE DE59309201T patent/DE59309201D1/de not_active Revoked

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