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
  • C11D3/0005—Other compounding ingredients characterised by their effect
  • C11D3/0021—Dye-stain or dye-transfer inhibiting 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
  • C11D3/37—Polymers
  • C11D3/3746—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
  • C11D3/3769—(Co)polymerised monomers containing nitrogen, e.g. carbonamides, nitriles or amines
  • C11D3/3776—Heterocyclic compounds, e.g. lactam

Definitions

• the present invention relates to a detergent additive which counteracts the dye and brightener transfer from colored or lightened textiles to white or colored or non-lightened textiles during the washing together.
• DE-OS 29 16 656 describes detergents with an addition of cationic alkylpyridinium salts to prevent the transfer of optical brighteners from brightener-containing laundry items to brightener-free laundry items during washing. From DE-AS 12 24 698 it is known that treatment of textiles which have undergone a color shift due to brightener transfer, with solutions of tertiary or quaternary organic nitrogen bases or their salts, can effect a color regeneration.
• DE-OS 35 19 012 relates to detergents containing polymer constituents based on polyvinylpyrrolidone and water-soluble cationic compounds and other usual detergent constituents. These detergents are very valuable in terms of their discoloration-inhibiting effect.
• a detergent additive containing at least partially water-soluble polymer constituents based on N-vinylpyrrolidone and / or N-vinylimidazole and / or N-vinyloxazolidone and / or water-soluble and / or water-insoluble cationic compounds significantly improves the described odor formation problem causes.
• Such detergent additives also tend to develop less unpleasant odors in connection with conventional detergent components than do the detergents according to the teaching of DE-OS 35 19 012.
• the detergent additive contains the zinc salts which are known per se for eliminating unpleasant odors Ricinoleic acid (see. Fats, soaps, paint 75, 1973, page 647 ff) contains.
• the detergent additive is in particulate form, preferably in the form of granules. The particle size distribution is expediently adjusted to approximately the particle size distribution of the detergent to which this additive is to be added, as a result of which segregation phenomena can be avoided during storage, transport and handling.
• the detergent additive additionally contains a polymer component containing acid groups.
• a polymer component containing acid groups alone, ie without the simultaneous presence of zinc salts of ricinoleic acid, already reduces the odor problem; on the other hand, the joint use of zinc salts of ricinoleic acid and polymer constituents containing acid groups brings about a surprisingly greater reduction in the problem of gnawing than would have been expected after the sum of the individual active substances used to improve the odor.
• the polymer component containing acid groups is particularly effective if it is present on the surface of the particulate detergent additive, in particular if it at least partially covers the surface of the detergent additive.
• the polymer component containing acid groups is preferably polyacrylic acid or a copolymer containing polyacrylic acid.
• a polymer constituent is, for example, the product known as "Schlichte S" ( R ) from Badische Anilin and Sodafabrik, Ludwigshafen, Federal Republic of Germany, which is known for the sizing of fully synthetic fibers.
• Suitable copolymers based on polyacrylic acid are obtained by copolymerization, for example with methacrylic acid, maleic acid, fumaric acid, the copolymers also being partially esterified or in salt form. It is essential for suitable copolymers that they still contain free acid groups and are expediently film-forming and water-soluble.
• Detergent additives according to the invention optionally contain 0.1 to 2% by weight of zinc salts of ricinoleic acid and optionally 1 to 10% by weight, preferably 2 to 5% by weight, of acid groups of the polymer components.
• Suitable water-insoluble quaternary ammonium compounds are the compounds known as textile plasticizers of the quaternary type derived from ammonia or imidazoline. These are primarily compounds with two long-chain, preferably saturated aliphatic radicals each having 14 to 26, in particular essentially 16 to 20, carbon atoms and at least one quaternary nitrogen atom in the molecule.
• the long-chain aliphatic radicals can be straight-chain or branched and can accordingly be derived from fatty acids or from fatty amines, Guerbetamines or from alkylamines obtainable from the reduction of nitroparaffins.
• quaternary ammonium compounds are, in particular, derivatives of ammonia, ie the quaternary salts obtainable by alkylation of long-chain secondary amines, such as, for example, the compounds distearyldimethylammonium chloride or ditalgalkyldimethylamminium chloride or methosulfate.
• quaternary ammonium compounds are obtained by reacting 1 mol of a Aminoalkylethylendiamins Hydroxyalkylethylendiamin or with 2 moles of a long-chain C 2 to C 26 -Fettsäkure or ester imidazoline compounds available, which are then converted by alkylation into the quaternary ImidazolidiumENSen.
• the anion generally consists of the acid residue which has arisen from the alkylating agent used in the quaternization.
• chloride, bromide, methyl sulfate, ethyl sulfate, methane, ethane or toluenesulfonate are therefore suitable as anions, as is the case with the water-soluble quaternary ammonium compounds.
• Suitable water-soluble quaternary ammonium compounds are dioctyldimethylammonium chloride, octyldodecyldimethylammonium chloride, hexadecyltrimethylammonium chloride or bromide, methylditalgalkylhydroxypropylammonium chloride, tallow alkyltrimethylammonium chloride, octadecyldimethylammonium hydrogen sulfate.
• the alkyl group of the alkylpyrridinium salt which can also be used as a water-soluble cationic compound, contains 10 to 18, in particular 12 to 16, carbon atoms in the alkyl group.
• Suitable anions are, for example, the chloride or hydrogen sulfate anion.
• the polymer component based on N-vinylpyrrolidone can be a homopolymer of N-vinylpyrrolidone or a copolymer of N-vinylpyrrolidone with a molecular weight in the range from about 10,000 to about 1,000,000. Particularly suitable homopolymers have a molecular weight of approximately 15,000 to approximately 700,000. In copolymers which are suitable for the detergent additives according to the invention, the proportion of N-vinylpyrrolidone is at least about 50% of the copolymer. Suitable comonomers are, for example, acrylonitrile and maleic anhydride. The preferred molecular weight of suitable copolymers is in the range of about 20,000 to about 200,000.
• the for the polymer component based on N- The information given for vinylpyrrolidone also applies analogously to polymer components based on N-vinylimidazole and N-vinyloxazolidone.
• the water-soluble polymer component based on polyvinylpyrrolidone is present in a large excess over the cationic compound;
• Detergent additives with a water-soluble polymer component based on polyvinylpyrrolidone and cationic compounds in a weight ratio of 10: 1 to 50: 1, in particular in a weight ratio of 30: 1 to 40: 1, are particularly preferred.
• Another object of the present invention is a method for producing a detergent additive, as described above.
• This process comprises intimately mixing a mixture of the water-soluble polymer constituent based on polyvinylpyrrolidone and the cationic compound and, if appropriate, the zinc salt of ricinoleic acid with the addition of water in a mixing unit, preferably granules being formed, then the resulting mixture with optionally heated air dries to a free-flowing product, which is optionally mixed in the fluidized bed with a solution of the acid component-containing polymer component by spraying and, if necessary, dried again with heated air if necessary.
• a mixing unit preferably granules being formed
• Granulation conditions can be achieved that the detergent additive according to the present invention has a particle size distribution which corresponds approximately to the particle size distribution of the detergent to which the detergent additive is to be added.
• the mixing unit which is used to mix the discoloration-inhibiting active ingredients and, if appropriate, the odor-improving additives is, for example, a fluidized bed mixer or preferably a mixing granulator in which the formation of the optional particulate detergent additive according to the invention takes place.
• a polymer component containing acid groups is used as an odor-improving additive, and the detergent additive according to the invention is added to it in the form of an aqueous solution
• the water contained in the detergent additive is mixed after mixing in the mixing unit and / or after spraying on the solution containing the acid groups
• Another object of the present invention is a detergent which contains a detergent additive according to the invention.
• Detergents which have optimal properties with regard to their discoloration-inhibiting action and their freedom from unpleasant odors preferably contain 0.5 to 10, in particular 1 to 5% by weight of the detergent additives described above.
• Such detergents not only have excellent discoloration-inhibiting effects, but they can also be perfumed with customary fragrances of a desired fragrance.
• the dry granules in the fluidized bed were then mixed with an aqueous 20% by weight solution of a low molecular weight polyacrylic acid ("Schlichte S " (R) , from BASF, Ludwigshafen, Federal Republic of Germany ) within 18 minutes at an air temperature of 70 ° C. Germany) sprayed that the granules contained about 3 wt .-% polyacrylic acid.
• the detergent additive according to the invention thus obtained weighed 440 g per liter and contained about 12% by weight of water.
• a mixture of 63.4% by weight of the polyvinylpyrrolidone from Example 1, 3.73% by weight of the imidazolinium salt / silica / nonionic surfactant mixture from Example 1 was mixed in a fluidized bed mixer and 32.8% by weight of water at 70 ° C. in the course of 10 minutes.
• the granules containing about 9.3% by weight of water were then sprayed with 2% by weight of polyacrylic acid (as a 20% by weight solution) as in Example 1.

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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)
• Detergent Compositions (AREA)

Applications Claiming Priority (2)

Publications (2)

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ID=6346804

Family Applications (1)

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Cited By (49)

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Family Cites Families (4)

• 1988
  • 1988-02-06 DE DE19883803630 patent/DE3803630A1/de not_active Withdrawn
• 1989
  • 1989-01-31 EP EP19890101618 patent/EP0327927A3/fr not_active Withdrawn
  • 1989-02-02 DK DK48989A patent/DK48989A/da not_active Application Discontinuation

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