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
  • C11D3/40—Dyes ; Pigments
  • C11D3/42—Brightening agents ; Blueing agents
• • D—TEXTILES; PAPER
  • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
  • D06L—DRY-CLEANING, WASHING OR BLEACHING FIBRES, FILAMENTS, THREADS, YARNS, FABRICS, FEATHERS OR MADE-UP FIBROUS GOODS; BLEACHING LEATHER OR FURS
  • D06L4/00—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs
• • 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
  • C11D3/3947—Liquid compositions
• • D—TEXTILES; PAPER
  • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
  • D06L—DRY-CLEANING, WASHING OR BLEACHING FIBRES, FILAMENTS, THREADS, YARNS, FABRICS, FEATHERS OR MADE-UP FIBROUS GOODS; BLEACHING LEATHER OR FURS
  • D06L4/00—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs
  • D06L4/10—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs using agents which develop oxygen
  • D06L4/15—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs using agents which develop oxygen using organic agents
• • D—TEXTILES; PAPER
  • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
  • D06L—DRY-CLEANING, WASHING OR BLEACHING FIBRES, FILAMENTS, THREADS, YARNS, FABRICS, FEATHERS OR MADE-UP FIBROUS GOODS; BLEACHING LEATHER OR FURS
  • D06L4/00—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs
  • D06L4/60—Optical bleaching or brightening
  • D06L4/614—Optical bleaching or brightening in aqueous solvents
  • D06L4/636—Optical bleaching or brightening in aqueous solvents with disperse brighteners

Definitions

• the invention relates to a storage-stable bleaching agent dispersion which, in addition to at least one peracid or its salts, contains one or more optical brighteners of the bis-benzofuranyl type, and to the production and use of this bleaching agent dispersion for the simultaneous bleaching and lightening of fabrics in the household and in industry, at temperatures from +10 ° C or higher.
• bis-benzofuranyl compounds which are substituted on the heterocyclic ring show superior optical brightening properties and have excellent stability to the added peracids in liquid bleach dispersions.
• These special bis-benzofuranyl compounds can be incorporated into concentrated bleach. They show good brightening effects and are stable at 20 ° C for months or are broken down at most in an amount that is not disturbing in practice.
• C 1 -C 4 alkyl and C 1 -C 4 alkoxy are methyl, ethyl, butyl and tert-butyl as well as methoxy, ethoxy and butoxy.
• sodium and potassium are preferred for the alkali metal ions.
• R 1 is hydrogen, methyl or methoxy and R 3 is methyl, ethyl or phenyl, the optical brighteners of the formulas (3), (4) and (5) is of particular importance.
• the optical brightener content is 0.01 to 1% by weight, preferably 0.05 to 0.25% by weight, based on the total weight of the formulation.
• optical brighteners of formulas (1) to (5) are known and can e.g. according to EP-A-395 588.
• the peracids, peracid-forming systems or their salts present in the bleaching agent dispersions are preferably added in an amount of 2 to 70% by weight and particularly preferably in an amount of 5 to 40% by weight, based on the total weight of the formulation.
• inorganic peracids such as perborates, persulfates and especially hydrogen peroxide are suitable as peracids.
• peracid-generating systems can be added.
• examples include tetraacetylethylenediamine (TAED), salts of nonoyloxybenzenesulfonate (NOBS), iso-nonoyloxybenzenesulfonate (i-NOBS) or compounds as described in DE-A-3 731506, US-A-4 778 618, EP-A-426 217, US-A-4 735 740 or EP-A-333 248.
• TAED tetraacetylethylenediamine
• NOBS nonoyloxybenzenesulfonate
• i-NOBS iso-nonoyloxybenzenesulfonate
• a catalyst or a catalyst mixture can be added.
• Suitable catalysts are, for example, transition metal compounds such as copper, cobalt and manganese compounds. Examples include C U S0 4 , cobalt-amine complexes or manganese complexes with multidentate ligands.
• Suitable sulfonates are, for example, water-soluble salts of alkylphenyl sulfonates, paraffin sulfonates, ⁇ -olefin sulfonates, fatty acid monoglycerol sulfonates, 2-acyloxy-alkane-1-sulfonates and ⁇ -alkyloxy-alkanesulfonates, as mentioned in GB-A-2 141 754.
• Examples include sodium pentadecyl sulfonate or dioctyl sulfosuccinate and especially the C 9 -C 15 alkylphenyl sulfonates.
• nonionic surfactants are compounds which are produced by the condensation of ethylene oxide, propylene oxide or a mixture of the two with a hydrocarbon which bears an active hydrogen atom; arise.
• alkyl or alkylene, mono- or polyglucosides are suitable. These preferably have alkyl or alkylene groups with 9 to 15 carbon atoms and 1-10 glucoside units. Examples include nonyldiglucoside and allyl (C 12 -C 15 ) poly (1-10) glucoside. Sorbitan esters such as polyoxyethylene sorbitan monopalmitate, fatty acid ethanolamides such as coconut fatty acid diethanolamide and fatty acid ethanolamine oxides such as tetradecylamine oxide can also be used.
• Saturated and unsaturated carboxylic acids such as e.g. Oleic, capric, lauric, myristic, coconut, palm kernel acid or salts thereof, e.g. the sodium, potassium or ammonium salts are used, the coconut fatty acid derivatives being particularly preferred.
• Examples of the group of phosphonates and polyphosphonates are e.g. Aminotrimethylphosphonic acid, aminotriethylphosphonic acid, ethylenediaminetetramethylphosphonic acid and diethylenediaminetetramethylphosphonic acid as well as compounds as described in US-A-4,321,165.
• additives such as further surfactants, emulsifiers, thickeners, foam regulators, stabilizers, odor improvers, sequestering agents, salts or dyes.
• the bleaching agent dispersion is produced by mixing and homogenizing the optical brightener (s) as a moist press cake or dry powder with one or more peracids or peracid-forming systems together with water and, if appropriate, other additives.
• the bleach dispersion thus obtained is stable for months and does not sediment.
• liquid bleach dispersion which corresponds to the usual standard, from +10 ° C, preferably in the range +10 ° C to +60 ° C and particularly preferably in the range +15 ° C to +40 ° C, can be used and also has an increased storage stability.
• a formulation with the following composition is produced: 75.47 parts water.
• the optical brightener can be incorporated without visible sedimentation and its amount, after neutralizing the oxidizing agent with hydrosulfite, is determined spectroscopically to 100% of the amount used.
• the dispersion obtained is stable.
• the bleach dispersions according to Examples 1 and 2 are stored for 14 days at a temperature of 20 ° C. with the exclusion of light. In both cases, the determination of the optical brightener content results in a content of 100% of the initial value.
• optical brightener is one of the formula (5) is used.
• the optical brightener content is 85% of the initial amount after 3 days at 26 ° C.

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• Chemical & Material Sciences (AREA)
• Engineering & Computer Science (AREA)
• Textile Engineering (AREA)
• Life Sciences & Earth Sciences (AREA)
• Chemical Kinetics & Catalysis (AREA)
• Oil, Petroleum & Natural Gas (AREA)
• Wood Science & Technology (AREA)
• Organic Chemistry (AREA)
• Inorganic Chemistry (AREA)
• Detergent Compositions (AREA)
• Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)

Applications Claiming Priority (2)

Publications (3)

Family

ID=4263268

Family Applications (1)

Country Status (12)

Cited By (3)

Families Citing this family (9)

Family Cites Families (31)

• 1992
  • 1992-12-07 MX MX9207050A patent/MX9207050A/es not_active IP Right Cessation
  • 1992-12-10 AT AT92810974T patent/ATE167699T1/de not_active IP Right Cessation
  • 1992-12-10 EP EP92810974A patent/EP0548019B1/fr not_active Expired - Lifetime
  • 1992-12-10 DE DE59209385T patent/DE59209385D1/de not_active Expired - Fee Related
  • 1992-12-10 ES ES92810974T patent/ES2118804T3/es not_active Expired - Lifetime
  • 1992-12-16 US US07/991,661 patent/US5449477A/en not_active Expired - Fee Related
  • 1992-12-17 NZ NZ245506A patent/NZ245506A/en unknown
  • 1992-12-17 KR KR1019920024556A patent/KR930013349A/ko not_active Abandoned
  • 1992-12-18 JP JP4337697A patent/JPH05271691A/ja active Pending
  • 1992-12-18 BR BR9205072A patent/BR9205072A/pt not_active Application Discontinuation
  • 1992-12-18 ZA ZA929832A patent/ZA929832B/xx unknown
  • 1992-12-18 AU AU30283/92A patent/AU660747B2/en not_active Ceased

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