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
  • C11D3/124—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
  • C11D3/1273—Crystalline layered silicates of type NaMeSixO2x+1YH2O
• • 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
  • C11D3/128—Aluminium silicates, e.g. zeolites

Definitions

• EP-B1-0 164 514 describes the use of crystalline, layered sodium silicates of the composition NaMSi x O 2x + 1 . yH2O, where M is sodium or hydrogen and x is a number from 1.9 to 4 and y is a number from 0 to 20, for softening water which contains calcium and / or magnesium.
• DD-A3-161 180 also reports on a detergent and cleaning agent for solid surfaces, including also textiles, which is characterized in that it contains water-insoluble polysilicate hydrates of the general formula Me2O. ySiO2. zH2O, where Me is an alkali and / or proton, y is a number from 4 to 48 and z is a number from 5 to 25, together with the usual components of detergents and cleaning agents.
• the polysilicate hydrates used include Magadiite of the formula Na2O. 14 SiO2. 9 H2O and kenyaite of the formula Na2O. 22 SiO2. 10 H2O listed.
• meta and polyphosphates are preferably used as builders.
• Delicates are used to clean very delicate fabrics. These are characterized by a lower alkalinity and also contain no bleach, so that the sensitive fibers are damaged as little as possible.
• the disadvantage of these mild detergents is that dirt removal is poorer than that of full detergents.
• the aim of the present invention was to reduce the damage to the textile fiber during the washing process when using a phosphate-free detergent containing bleach by adding a suitable detergent additive (inhibitor).
• the crystalline sheet silicates magadiite of the formula are preferred NaSi7O13 (OH) 3. 3 H2O or Na2Si14O29. 9 H2O or Na2Si14O29. 11 H2O, or Kenyait of the formula Na2Si22O45. 10 H2O used as an inhibitor.
• the layered silicate serving as a builder is preferably essentially ⁇ -sodium disilicate (SKS-6) of the formula ⁇ -Na2Si2O5.
• the damage to the textile fiber by the detergent is significantly reduced, as the following examples show.
• test detergents were produced using the spray mixing method.
• the test formulations specified were checked by washing: The primary washing effect was determined on the washed test fabric by optical reflectance measurement at 460 nm (device: Datacolor 3890) using the so-called difference method.
• the secondary washing effect was determined in the form of the inorganic fabric ash as a percentage of the residue on ignition at 800 ° C.
• the fiber damage factor S was determined in accordance with DIN 44983 and DIN 53919.
• a suspended layered silicate such as e.g. Magadiite or Kenyait
• a phosphate-free detergent with and without the addition of a suspended layered silicate as an inhibitor, the reflectance differences and tissue ash determined on the test fabrics are the same within the scope of the measurement accuracy, which is why these washing results are not reproduced below.
• a high numerical value for the fiber damage factor means severe fiber damage (see examples B, C, J).
• the fiber damage factor can be almost halved and thus the fiber damage can be significantly reduced (see Examples E, F, H, I, K, L ).
• the fiber damage is so slight that no further improvement is observed by adding suspendable layered silicates (see Examples D and G).
• the primary washing effect is significantly worse, especially with bleachable soiling, than with detergents containing bleach.
• Nonionic surfactants are understood to mean those compounds which have an organic, hydrophobic group and a hydrophilic radical, for example the condensation products of alkylphenols or higher fatty alcohols with ethylene oxide (fatty alcohol ethoxylates), the condensation products of polypropylene glycol with ethylene oxide or propylene oxide, the condensation products of Ethylene oxide with the reaction product of ethylenediamine and propylene oxide, as well as long-chain tertiary amine oxides
• surfactants with a zwitterionic (ampholytic) character include the following compounds: Derivatives of aliphatic, secondary and tertiary amines or quaternary ammonium compounds with 8 to 18 carbon atoms and a hydrophilic group in the aliphatic radical, such as sodium 3-dodecylaminopropionate, sodium 3-dodecylaminopropanesulfonate, 3- (N, N-dimethyl-N -hexadec
• Suitable washing auxiliaries according to the invention are weakly acidic, neutral or alkaline reacting salts and complexing agents.
• Useful, slightly acidic, neutral or alkaline reacting salts are, for example, the bicarbonates or carbonates of the alkalis, e.g. Soda, furthermore the alkali salts of organic, non-capillary-active, 1 to 7 carbon atoms containing sulfonic acids, carboxylic acids and sulfocarboxylic acids.
• water-soluble salts of benzene, toluene or xylene sulfonic acid water-soluble salts of sulfoacetic acid, sulfobenzoic acid or salts of sulfodicarboxylic acids as well as the salts of acetic acid, lactic acid, citric acid, tartaric acid, oxydiacetic acid (HOOC-CH2-O-CH2-COOH) acid, oxydib , 1,2,3,4-cyclopentanetetracarboxylic acid, polycarboxylates, polyacrylic acid and polymaleic acid.
• acetic acid lactic acid, citric acid, tartaric acid, oxydiacetic acid (HOOC-CH2-O-CH2-COOH) acid, oxydib , 1,2,3,4-cyclopentanetetracarboxylic acid, polycarboxylates, polyacrylic acid and polymaleic acid.
• the organic complexing agents include, for example, nitrilotriacetic acid, ethylenediaminetetraacetic acid, N-hydroxyethylethylenediaminetriacetic acid or polyalkylene-polyamine-N-polycarboxylic acids.
• Washing aids according to the invention also include products such as the alkali or ammonium salts of sulfuric acid, boric acid, alkylene, hydroxyalkylene or aminoalkylenephosphonic acid, as well as bleaching agents, activators and stabilizers for peroxide compounds (bleaching agents) and water-soluble organic complexing agents.
• the bleaching agents include sodium perborate mono- or tetrahydrate, sodium percarbonate, the alkali metal salts of peroxomono- or peroxodisulfuric acid, the alkali metal salts of peroxodiphosphoric acid (H4P2O8), and alkali metal salts of peroxocarboxylic acids, such as diperoxododecanedioic acid.
• stabilizers for these bleaching agents are water-soluble, precipitated magnesium silicate, organic complexing agents such as the alkali salts of iminodiacetic acid, nitrilotriacetic acid, ethylenediaminetetraacetic acid, methylenediphosphonic acid, 1-hydroxyethane-1,1-diphosphonic acid and nitrilotrismethylenephosphonic acid.
• Tetraacetylethylenediamine (TAED) is used as an activator for bleaching agents.
• Washing aids that increase the dirt-carrying capacity of washing liquors, such as carboxymethyl cellulose, carboxymethyl starch, methyl cellulose or copolymers of maleic anhydride with methyl vinyl ether or acrylic acid, foam regulators, such as mono- and dialkyl phosphoric acid esters with 16 to 20 carbon atoms in the alkyl radical, and optical brighteners, disinfectants and enzymes, such as proteas , Amylases, lipases, and also fragrances, can also be additional components of detergents.
• foam regulators such as mono- and dialkyl phosphoric acid esters with 16 to 20 carbon atoms in the alkyl radical
• optical brighteners disinfectants and enzymes, such as proteas , Amylases, lipases, and also fragrances, can also be additional components of detergents.

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• Chemical & Material Sciences (AREA)
• Inorganic Chemistry (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)
• Crystallography & Structural Chemistry (AREA)
• Detergent Compositions (AREA)
• Silicates, Zeolites, And Molecular Sieves (AREA)

Applications Claiming Priority (2)

Publications (2)

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Family Applications (1)

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Citations (5)

• 1993
  • 1993-08-25 DE DE19934328509 patent/DE4328509A1/de not_active Withdrawn
• 1994
  • 1994-07-23 EP EP94111518A patent/EP0640683A3/fr not_active Withdrawn
  • 1994-08-24 JP JP19985994A patent/JPH07173494A/ja not_active Withdrawn

Patent Citations (5)

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