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
  • 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
  • C11D3/20—Organic compounds containing oxygen
  • C11D3/2003—Alcohols; Phenols
  • C11D3/2006—Monohydric alcohols
  • C11D3/2034—Monohydric alcohols aromatic
• • 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
  • C11D3/24—Organic compounds containing halogen

Definitions

• the present invention relates to an antimicrobial detergent additive, process for its production and a detergent containing this detergent additive.
• Textile fiber materials can be made antimicrobial in various ways, so e.g. during the washing process.
• antimicrobial agents are susceptible to oxidation against the bleach components present in the detergent, e.g. Perborates, so that the antimicrobial effect of such a detergent deteriorates significantly can become or even have no effect.
• the present invention was therefore based on the object of an antimicrobial detergent additive to find the oxidation stable to the other detergent components remains and thus gives the detergent overall good storage stability and at the same time causes the antimicrobial effect to be fully developed during the washing process.
• a detergent additive in agglomerate form which, in addition to the antimicrobial active substance, has at least one swellable Layered silicate and a surfactant contains these requirements, i.e. the in this Antimicrobial active substance contained in the detergent additive is protected against oxidizing agents and after the agglomerate has dissolved in the wash liquor.
• the detergent additive has a high storage stability, disintegrates well in water, and the antimicrobial active substance lies in the washing process homogeneous distribution.
• the present invention therefore relates to a detergent additive in agglomerate form, which is characterized in that it has at least one swellable layered silicate, contains an antimicrobial active substance and a surfactant.
• the detergent additive may contain, in addition to the swellable layered silicate, the antimicrobial active substance and the surfactant an alkali salt, e.g. Alkali sulfate, alkali carbonate or alkali (poly) phosphate.
• an alkali salt e.g. Alkali sulfate, alkali carbonate or alkali (poly) phosphate.
• the swellable layered silicate is preferably a natural or synthetic clay mineral or a synthetic layered sodium silicate.
• the swellable clay mineral is preferably montmorillonite, beidelite, saponite or hectorite.
• Bentonite contains montmorillonite as its main mineral, which is a swellable dioctahedral natural layered silicate of the formula Na 0.66 (OH) 4 Si 8 (Al 3.34Mg 0.66 ) O 20 represents.
• One layer is composed of three sub-elements, with two tetrahedral layers with Si as the central atom enclosing an octahedron layer with Al as the central atom.
• Al 3+ is partly isomorphically replaced by Mg 2+ .
• the resulting excess charge is balanced between the layers by Na + or Ca 2+ .
• the montmorillonite can be used in the sodium or calcium form or in the form of a calcium montmorillonite exchanged with Na + .
• the bentonite powder preferably has a residual moisture content of about 10% by weight and a sieve residue of a maximum of 30% to 45 ⁇ m.
• synthetically produced clay minerals can also be used from the groups mentioned above, such as synthetic layered sodium silicates (e.g. the commercial product SKS 6 from Hoechst AG).
• the layered silicate is preferably used in an amount of 10 to 50% by weight, in particular 30 up to 50% by weight.
• the surfactant used according to the invention is preferably an anionic or nonionic Surfactant.
• the fatty alcohol ethoxylates are stored between the layers.
• the non-ionic Surfactants in which the antimicrobial active substances are soluble favor them Transport between the lamellae of the swellable layered silicate.
• the antimicrobial Active substances are intercalated between the lamellae of the layered silicate and so before protected from reaction with other detergent ingredients.
• Layered silicates intercalated with surfactants and the antimicrobial active ingredient in Granulate form swell in water and give the tensides and antimicrobial active substance the solution in water free. Due to the swelling effect of the layered silicate agglomerate in Water the agglomerates are blown up and distributed in the water.
• phenol derivatives, benzyl alcohols, chlorhexidine, C 12 -C 14 alkyl betaines, C 8 -C 18 fatty acid amido alkyl betaines, amphoteric surfactants, trihalocarbanilides and quaternary ammonium salts can be used as antimicrobial active substance in the detergent additive according to the invention.
• antimicrobial active substances are described in detail, for example, in EP-A-0,777,717 and WO 97/46218.
• the detergent additive according to the invention can be one or a mixture of several contain antimicrobial active substances.
• Alkali salts include, in particular, alkali sulfate, alkali carbonate or alkali (poly) phosphate in the form of their sodium or potassium salts. Is very particularly preferred Sodium sulfate.
• the alkali salt fulfills several functions: if the layered silicate is agglomerated with the surfactant, this gives a soft agglomerate that becomes sticky with increasing surfactant content, that is not free-flowing and not capable of ensiling. Due to the presence of the alkali salt the mechanical stability of the agglomerate is improved and its stickiness reduced.
• the alkali salt in the detergent is desirable as a builder component.
• the Alkali salt is preferably used in amounts of approximately 10 to 40% by weight, in particular approximately 12 up to 30% by weight.
• the agglomerate particles of the detergent additive according to the invention preferably with synthetic zeolite or layered sodium silicate are encased, thereby increasing the flowability of the agglomerate particles is improved.
• the coating with zeolite or layered sodium silicate further improves the whiteness of the agglomerate.
• the agglomerate preferably has a bulk density of more than 700 g / l and is due to This high bulk density is compatible with highly concentrated, high density detergents.
• the swellable layered silicate is preferably mixed before the antimicrobial is added Active substance / surfactant with the alkali salt.
• the powder components can e.g. in an intensive mixer, e.g. in an Eirich mixer be mixed together.
• the antimicrobial active substance preferably as an aqueous dispersion
• the surfactant under Whirling is added to the powder component.
• the resulting agglomerate is sieved and can pass through Addition of further zeolite (in particular zeolite P) or layered sodium silicate coated in powder form on the surface to reduce stickiness.
• the agglomerate obtained is readily dispersible in water.
• the antimicrobial active substance is protected from the oxidizing agents contained in the detergent and after the dissolution of the agglomerate is available in the wash liquor.
• the powdered layered silicate and the powdered sodium salt become intense premixed. With intensive swirling of the powder mixture, the surfactant or a Solution of the surfactant added. At the same time, the antimicrobial active substance becomes a Mixture of different antimicrobial active substances as an aqueous dispersion (slurry) admitted. Alternatively, a solution of the antimicrobial active substance in one Surfactant solution can be added to the powder mixture.
• the antimicrobial active substance is added as an aqueous dispersion, it agglomerates the mixture at a water content of about 20 to 30% by weight, based on the total mixture.
• an agglomerate is obtained which is in a suitable dryer, preferably in a fluid bed dryer to a residual water content from about 2 to 15% by weight, preferably from about 5 to 10% by weight becomes.
• the agglomerate obtained is sieved to a particle size of about 0.2 to 2.5 mm, preferably sieved from 0.5 to 1.7 mm.
• the resulting coarse grain is crushed with a roller crusher crushed and placed again on the screening plant.
• the screened agglomerate can be placed in a drum mixer (e.g. a drum mixer from Telschig) or a granulating plate. Then about 3 to 15% by weight, preferably about 5 to 10% by weight, of a synthetic Zeolite or a synthetic layered silicate in fine-grained form.
• the average particle size of this powder should preferably be ⁇ 20 ⁇ m, in particular 3 to 10 ⁇ m be.
• the sample is dried for 4 hours at 65 ° C in a vacuum and then over 3 sieves sieved with mesh sizes of 2, 1 and 0.5 mm.
• the sample is dried for 4 hours at 65 ° C in a vacuum and then over 3 sieves sieved with mesh sizes of 2, 1 and 0.5 mm.
• Examples 5 to 10 The procedure is as described in Examples 1 to 4, but the following compounds are used instead of triclosan: example antimicrobial active substance 5 Diclosan (compound of formula (6)) 6 2,4-dichlorophenol 7 Dichlorophene 8th Dichlorobenzyl alcohol 9 Chlorhexidine 10th Coconut fatty acid C 8 -C 18 amidopropyl betaine
• Example 11 Determination of the oxidation stability of triclosan in various triclosan-bentonite compound / detergent mixtures
• This detergent has the following composition (%): Linear Na alkyl benzene sulfonate 8.0 Mg silicate 1.9 Tallow alcohol tetradecane ethylene glycol ether 2.9 Carboxymethyl cellulose 1.2 Na soap 3.5 EDTA 0.2 Na triphosphate 43.8 Na sulfate 21.2 Na silicate 7.5 water 9.8
• the target content of triclosan in the detergent compositions was determined analytically before the start of the test.

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)
• Health & Medical Sciences (AREA)
• Emergency Medicine (AREA)
• Inorganic Chemistry (AREA)
• Detergent Compositions (AREA)
• Agricultural Chemicals And Associated Chemicals (AREA)

Priority Applications (1)

Applications Claiming Priority (3)

Publications (2)

Family

ID=26148066

Family Applications (1)

Country Status (1)

Cited By (4)

Citations (7)

• 1998
  • 1998-09-08 EP EP19980810888 patent/EP0903401B1/fr not_active Expired - Lifetime

Patent Citations (7)

Non-Patent Citations (1)

Also Published As

Similar Documents

Legal Events