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
  • C11D3/48—Medical, disinfecting agents, disinfecting, antibacterial, germicidal or antimicrobial 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
  • C11D1/38—Cationic compounds
  • C11D1/62—Quaternary ammonium 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
  • C11D3/39—Organic or inorganic per-compounds
  • C11D3/3902—Organic or inorganic per-compounds combined with specific additives
  • C11D3/3937—Stabilising agents

Definitions

• agents with acidic and / or reducing constituents by means of which disruptive detergent and bleach residues are converted into non-disruptive compounds, are added to the last rinsing bath.
• washed laundry after. Drying has a pleasant soft feel; this is especially true for laundry that lies on the skin; and for terry towels too.
• bacteriostatic finishing of the textiles e.g. B. roll towels required.
• the laundry treatment generally requires several operations for "acidifying” (neutralizing) and “antichlorinating” (reducing) as well as softening or antibacterial treatment.
• Another disadvantage of many known agents is e.g. B. also in the deposition of salt-like components of these agents on the textiles, whereby the wearing properties and the durability of the textiles are impaired.
• these deposits if they get into the trough of a lack of laundry, can lead to faults there.
• the object of this invention is therefore to provide a liquid laundry aftertreatment agent with fabric softening, acidifying and antichlorizing properties, comprising a fabric softening quaternary ammonium compound, an acidic compound and a reducing agent.
• liquid agent which is characterized in that it contains an inorganic or organic acid or acid salts, hydrogen peroxide or organic percarboxylic acids as a reducing agent for chlorine and chlorine compounds with a positive value and additionally a stabilizer for peroxy compounds , with the proviso that the amount of the acidic compound is selected so that the pH of the agent is at most 4.
• the agent can contain antibacterial agents.
• conventional additives such as. B. dispersants, foam regulators, colors and fragrances may be contained in the agent.
• Water can be used as the liquid carrier, possibly with the addition of small amounts of organic solvents.
• the agent according to the invention for post-treating washed laundry, it is possible to neutralize alkaline detergent residues that adhere to the laundry after the washing and rinsing process, to reduce hypochlorite bleach residues, and to give the laundry items a pleasantly soft touch and antistatic after drying To impart behavior and if necessary to make them antibacterial, while at the same time the formation of deposits on the textiles is reduced.
• the agent according to the invention can also be conveniently and precisely dosed automatically.
• the quaternary ammonium compounds with, preferably two long-chain, preferably saturated aliphatic radicals each having 14-26, preferably 16-20, carbon atoms and at least one quaternary nitrogen atom in the molecule are suitable as fabric softening agents.
• 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 the alkylamines obtainable by reduction of nitroparaffins.
• These quaternary ammonium compounds are, in particular, derivatives of ammonia, ie the quaternary salts obtainable by alkylation of long-chain secondary amines, such as, for. B.
• the anion generally consists of the acid residue, which consists of the the quaternization used alkylating agent has arisen.
• chloride, bromide, methyl sulfate, ethyl sulfate, methane, ethane or toluenesulfonate are suitable as anions.
• condensation products of 1-3 moles of fatty acid alkyl ester or 1/3-1 mole of fatty acid triglyceride with 1 mole of a hydroxyalkyl polyamine, for example hydroxyethyl ethylene diamine or hydroxyethyl diethylene triamine are also suitable as textile softeners.
• the product obtained by reacting 1 mol of a fatty acid triglyceride, in particular hardened tallow, with 1 mol of hydroxyethylethylenediamine at 90-150 ° C. is particularly suitable.
• these active ingredients lead to a uniform, striking improvement in the grip and, at the same time, an antistatic finish without staining.
• Acidic compounds include inorganic acids, such as, in particular, orthophosphoric acid, acidic salts of orthophosphoric acid, such as, for. As sodium dihydrogen phosphate, non-surfactant organic acids with 1-8 carbon atoms, such as. B. amidosulfonic acid, urea compounds of orthophosphoric acid, boric acid, oxalic acid, lactic acid, glycolic acid, citric acid, tartaric acid, benzoic acid, phthalic acid, gluconic acid; Formic acid, acetic acid and propionic acid as well
• sulfobenzoic acids or optionally acidic alkali salts of these acids or mixtures thereof are preferred organic acids because of their easy accessibility and non-toxicity.
• a mixture consisting of adipic acid, glutaric acid and succinic acid can also be used as an acidic additive.
• the particularly preferred orthophosphoric acid (H PO 4 ) can also be used together with sodium dihydrogen phosphate as an acidifying agent.
• the agent according to the invention contains so much acidic additives that the pH of the agent is at most 4. Depending on the desired acidification effect, the agent contains different amounts of acidic substances, so that the pH is also significantly lower, e.g. B. may be 1 or below.
• the agent according to the invention preferably contains hydrogen peroxide (H 2 O 2 ) as an antichlorinating component.
• H 2 O 2 acts as a reducing agent compared to the stronger oxidizing agent hypochlorite.
• organic percarboxylic acids such as. B. diperazelaic acid or diperisophthalic acid can be used.
• the hydrogen peroxide is preferred because of its easy accessibility and because it is converted to the water which is present anyway upon reduction. Another advantage of H 2 O 2 is that it cannot form solid deposits.
• the agent contains a heavy metal complexing agent.
• Suitable complexing agents are e.g. B. alkane polyphosphonic acids, amino and hydroxyalkane polyphosphonic acids and Phosphonocarboxylic acids, such as. B. the compounds methane diphosphonic acid, 1-aminoethane-1,1-diphosphonic acid, aminotrimethylene triphosphonic acid, 2-phosphonobutane-1,2,4-tricarboxylic acid and 1-hydroxyethane-1,1-diphosphonic acid or aminopolycarboxylic acids such as. B.
• nitrilotriacetic acid ethylenediaminetetraacetic acid or hydroxyethylethylenediaminetriacetic acid or its alkali metal salts.
• Such heavy metal complexing agents also counteract a yellowing tendency of the laundry caused by heavy metal ions in the rinse water.
• Antimicrobial active ingredients which the agent according to the invention can contain are understood here to mean compounds having a bactericidal or bacteriostatic or fungicidal or fungistatic action. These active ingredients are said to be water-soluble either as such or in the form of their salts.
• the antimicrobial agents suitable as additives are e.g. For example, such quaternary ammonium compounds which, in addition to a long-chain aliphatic and two short-chain aliphatic hydrocarbon radicals, contain an aromatic radical linked to the nitrogen atom via an aliphatic carbon atom, or an aliphatic organic radical having double bonds.
• antimicrobial quaternary ammonium compounds are following: dimethyl-benzyl-dodecylammonium chloride, dimethyl-benzyl-tetradecylammonium chloride, dimethyl- (ethylbenzyl) -dodecyl-ammonium chloride, dimethyl-benzyl-decylammonium bromide, diethyl-benzyl-dodecylammonium chloride, diethyl-benzyl-octyl-ethylallyl chloride, dib -benzyl-, ethyl-cyclohexyl-allyl-, ethyl-crotyl-diethylaminoethyl-dodecyl-ammonium chloride and in particular coconut alkyldimethylbenzylammonium chloride. Dimethyldidecylammonium chloride is also effective.
• antimicrobial agents can also be used, provided they are stable in the presence of per compounds in an acidic medium.
• betaines such as.
• B. Dodecyl-di (aminoethyl) glycine include, for example, betaines, such as. B. Dodecyl-di (aminoethyl) glycine.
• Other useful antimicrobial agents are e.g. B. hexamethylene bis - (chlorophenyl) biguanide digluconate or dihydrochloride and dodecylglycine.
• nonionic surfactants are particularly suitable as dispersants, as they can be contained in the liquid textile aftertreatment agents according to the invention. These include products that owe their hydrophilic properties to the presence of polyether cores, amine oxide, sulfoxide or phosphine oxide groups, alkylolamide groups or, more generally, an accumulation of hydroxyl groups. Such nonionics. contain in the molecule at least one hydrophobic residue with 8-26, preferably 10-20 and in particular 12-18 carbon atoms, and at least one nonionic, water-solubilizing group.
• the preferably saturated hydrophobic residue is usually aliphatic, possibly also alicyclic in nature; it can be connected to the water-solubilizing groups directly or via intermediate links.
• intermediate links come z.
• B. benzene rings, carboxylic acid ester or carbonamide groups, ether or ester-bonded residues of polyhydric alcohols, such as. B. that of ethylene glycol, propylene glycol, glycerol or corresponding polyether radicals in question.
• Typical nonionics preferred as dispersants are e.g. B.
• adducts of about 9 moles of ethylene oxide with nonylphenol or with dodecyl alcohol, polyethylene glycols up to 50-ethoxy units or polyethoxy-polyprop-oxy-glycols with up to 20 ethoxy or propoxy units.
• the quaternary ammonium compound which softens the textile is preferably in particular the compounds Dimethylditalgalkylammoniumchlorid or Dimethyldistearylammoniumchlorid used on a large scale, of which Dimethyldistearylammoniumchlorid is particularly preferred.
• Quaternary ammonium compounds are preferred as antibacterial active substances, in particular coconut alkyldimethylbenzylammonium chloride.
• hydrogen peroxide is used in particular, which has sufficient stability in the presence of heavy metal complexing agents.
• Suitable heavy metal complexing agents by means of which both the hydrogen peroxide is stabilized and a discoloration of the laundry is counteracted by the use of washing water and rinsing water with a content of heavy metal ions which is intrinsically disruptive, are above all alkane polyphosphonic acids and aminopolycarboxylic acids, in particular hydroxyethylenediaminotrieslacetic acid and / or 1- Hydroxyethanl, 1-diphosphonic acid or their alkali salts.
• Agents according to the invention advantageously contain small amounts, for example 0.5-5% by weight, of nonionic surfactants as dispersants, if large amounts of textile-softening quaternary ammonium compounds are used to achieve a pronounced softening effect
• the invention further relates to a method for simultaneous softening, for removing active chlorine and for neutralizing alkaline detergent residues and optionally for antibacterial finishing of freshly washed laundry.
• the process is characterized in that the washing in the last rinse cycle with 0.5 to 20 g per liter of an agent of the composition described above, which is added to the rinsing bath, for 0.5 to 5 minutes with constant movement at about 10 to 30 ° C treated.
• the treatment liquor is then separated off, for example by squeezing or centrifuging, to a residual moisture content of about 10 to about 100% by weight, based on the dry weight of the laundry.
• the laundry is then dried in a tumble dryer, for example, and ironed if necessary. It has a soft handle after drying.
• the laundry treated with this had the same advantageous properties as described in Example 1 after the spin-off of the treatment liquor and drying in an automatic laundry dryer.
• Recipes 3 and 5 were distinguished by special storage stability if they additionally had 1.5% by weight (example 3) and 5% by weight (example 5) nonylphenol, to which about 9 moles of ethylene oxide had been attached , as a dispersant.
• the aforementioned agents contained small amounts of an antimicrobial compound such as. B. 2 wt .-% Kokosalkyldimethylbenzylammoniumchlorid, the laundry treated with it also had antimicrobial properties against a number of test germs, eg. B. Trichophyton mentagrophytes, Microsporum gypseum, Trichophyton rubrum, Staphylococcus aureus.
• an antimicrobial compound such as. B. 2 wt .-% Kokosalkyldimethylbenzylammoniumchlorid
• the laundry treated with it also had antimicrobial properties against a number of test germs, eg. B. Trichophyton mentagrophytes, Microsporum gypseum, Trichophyton rubrum, Staphylococcus aureus.

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Cited By (15)

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• 1982
  • 1982-02-15 DE DE19823205317 patent/DE3205317A1/de not_active Withdrawn
• 1983
  • 1983-01-25 DK DK027483A patent/DK156305C/da not_active IP Right Cessation
  • 1983-02-07 DE DE8383101126T patent/DE3374693D1/de not_active Expired
  • 1983-02-07 EP EP83101126A patent/EP0086423B1/fr not_active Expired
  • 1983-02-07 AT AT83101126T patent/ATE31075T1/de active
  • 1983-02-14 ES ES519783A patent/ES519783A0/es active Granted

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