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
  • C11D3/39—Organic or inorganic per-compounds
  • C11D3/3945—Organic per-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
• • 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
  • D06L4/10—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs using agents which develop oxygen
  • D06L4/12—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs using agents which develop oxygen combined with specific additives
• • 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
  • D06L4/621—Optical bleaching or brightening in aqueous solvents with anionic brighteners
• • 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
  • D06L4/657—Optical bleaching or brightening combined with other treatments, e.g. finishing, bleaching, softening, dyeing or pigment printing

Definitions

• the instant invention relates to a bleaching process for polyamide or polyurethane/polyamide fibers and fabrics, which process is carried out in the presence of phthaloyl amido peroxy hexanoic acid (PAP) and selected fluorescent whitening agents.
• PAP phthaloyl amido peroxy hexanoic acid
• Peroxide-containing bleaching agents have been used in washing and cleaning processes for some time.
• Typical examples are inorganic peroxides, such as, for example persulfates, perborates, percarbonates and/or persilicates.
• Organic peroxides are, for example, mono-peroxides or polyperoxides having alkyl chains of at least 3, preferably 6 to 20, carbon atoms; in particular diperoxydicarboxylates having 6 to 12 C atoms, such as diperoxyperacetates, diperoxypersebacates, diperoxyphthalates and/or diperoxydodecanedioates, especially their corresponding free acids, are of interest.
• fluorescent whitening agents are simultaneously applied.
• fluorescent whitening agent FWA
• Typical fluorescent whitening agents used in the context of a bleaching or laundering process are water soluble and from the chemical class of 4,4' bis sulfostyryl biphenyl or bis triazinyl stilbene sulfuric acid salts.
• Commercial examples are Tinopal CBS(RTM) and Tinopal DMA(RTM) from Ciba Inc.
• One aspect of the invention is a washing or bleaching process for increasing the whiteness of polyamide or polyurethane/polyamide fibers or fabrics which process comprises bringing said fibers or fabrics in contact with a bleaching agent which is phthaloyl amido peroxy hexanoic acid and simultaneously with a fluorescent whitening agent which is selected from the group consisting of the stilbenyl-2H-naphthol (1,2-d) triazol derivatives, the bis(1,2,3-triazol-2yl) stilbene derivatives and the coumarine derivatives.
• a bleaching agent which is phthaloyl amido peroxy hexanoic acid
• a fluorescent whitening agent which is selected from the group consisting of the stilbenyl-2H-naphthol (1,2-d) triazol derivatives, the bis(1,2,3-triazol-2yl) stilbene derivatives and the coumarine derivatives.
• Polyamides are understood to be, for example, aliphatic and aromatic polyamides or copolyamides which are derived from diamines and dicarboxylic acids and/or of aminocarboxylic acid or the corresponding lactams.
• Suitable polyamides are for example: PA 6, PA 11, PA 12, PA 46, PA 66, PA 69, PA 610, PA 612, PA 10.12, PA 12.12 and also amorphous polyamides and polyurethane/polyamide elastomers.
• Polyamides and elastomers of the cited type are commonly known and are commercially available.
• the fiber or fabric is a polyamide selected from the group consisting of PA 6, PA 11, PA 12, PA 46, PA 66, PA 69, PA 610, PA 612, PA 10.12, PA 12.12.
• the fiber or fabric is a polyurethane/polyamide elastomer.
• Fluorescent whitening agents from the classes of the stilbenyl-2H-naphthol (1,2-d) triazol derivatives, the bis(1,2,3-triazol-2yl) stilbene derivatives and the coumarine derivatives are known and for example described in Fluorescent Whitening Agents, Editor R. nliker, G. Müller, 1975, Georg Thieme Verlag Stuttgart, page 25 ff.
• the fluorescent whitening agent is selected from the group consisting of and
• Compounds 101 to 107 are commercially available fluorescent whitening agents and, for example sold under the trade names Blankophor (RTM) from Bayer, Tinopal(RTM) or Uvitex(RTM) from Ciba Inc.
• Blankophor RTM
• Tinopal RTM
• Uvitex RTM
• the fluorescent whitening agent is or
• the amount of phthaloyl amido peroxy hexanoic acid is from 25-5000mg/kg fiber or fabric.
• the amount of fluorescent whitening agent is from 5-500mg/kg fiber or fabric.
• the instant washing or bleaching process is usually carried out in the presence of a nonionic and/or anionic surfactant.
• the washing or bleaching process is carried out at a temperature between 15° C and 98° C.
• the present invention relates to a washing or bleaching process.
• the amount thereof is preferably 1 - 50 %, especially 1 - 30 %.
• the amount thereof is preferably 1 - 3 %, especially 0.1 - 3 %.
• the amount thereof is preferably 1 - 70 %, especially 1 - 50 %. Special preference is given to an amount of from 5 to 50 % and especially an amount of from 10 to 50 %.
• Washing or bleaching processes are usually carried out by using an aqueous liquor.
• the mixture can be, for example, a peroxide-containing complete washing agent or a separate bleaching agent.
• a bleaching agent is used for removing coloured stains on textiles in a separate liquor before the clothes are washed with a bleach-free washing agent.
• a bleaching additive can also be used in a liquor together with a bleach-free washing agent.
• Granules can be prepared, for example, by first preparing an initial powder by spray-drying an aqueous suspension containing all the components listed above except for components D) and E), and then adding the dry components D) and E) and mixing everything together. It is also possible to add component E) to an aqueous suspension containing components A), B) and C), then to carry out spray-drying and then to mix component D) with the dry mass.
• aqueous suspension that contains components A) and C), but none or only some of component B).
• the suspension is spray-dried, then component E) is mixed with component B) and added, and then component D) is mixed in in the dry state.
• the anionic surfactant A) can be, for example, a sulfate, sulfonate or carboxylate surfactant or a mixture thereof.
• Preferred sulfates are those having from 12 to 22 carbon atoms in the alkyl radical, optionally in combination with alkyl ethoxysulfates in which the alkyl radical has from 10 to 20 carbon atoms.
• Preferred sulfonates are e.g. alkylbenzenesulfonates having from 9 to 15 carbon atoms in the alkyl radical.
• the cation in the case of anionic surfactants is preferably an alkali metal cation, especially sodium.
• the anionic surfactant component may be, e.g., an alkylbenzenesulfonate, an alkylsulfate, an alkylethersulfate, an olefinsulfonate, an alkanesulfonate, a fatty acid salt, an alkyl or alkenyl ether carboxylate or an a-sulfofatty acid salt or an ester thereof.
• alkylbenzenesulfonates having 10 to 20 carbon atoms in the alkyl group
• alkylsulfates having 8 to 18 carbon atoms
• alkylethersulfates having 8 to 18 carbon atoms
• fatty acid salts being derived from palm oil or tallow and having 8 to 18 carbon atoms.
• the average molar number of ethylene oxide added in the alkylethersulfate is preferably 1 to 20, preferably 1 to 10.
• the salts are preferably derived from an alkaline metal like sodium and potassium, especially sodium.
• alkali metal sarcosinates of formula R-CO(R 1 )CH 2 COOM 1 in which R is alkyl or alkenyl having 9-17 carbon atoms in the alkyl or alkenyl radical, R 1 is C 1 -C 4 alkyl and M 1 is an alkali metal, especially sodium.
• the nonionic surfactant component may be, e.g., primary and secondary alcohol ethoxylates, especially the C 8 -C 20 aliphatic alcohols ethoxylated with an average of from 1 to 20 moles of ethylene oxide per mole of alcohol, and more especially the C 10 -C 15 primary and secondary aliphatic alcohols ethoxylated with an average of from 1 to 10 moles of ethylene oxide per mole of alcohol.
• Non-ethoxylated nonionic surfactants include alkylpolyglycosides, glycerol monoethers, and polyhydroxyamides (glucamide).
• the total amount of anionic surfactant and nonionic surfactant is preferably 5-50% by weight, preferably 5-40% by weight and more preferably 5-30% by weight. As to these surfactants it is preferred that the lower limit is 10% by weight.
• Preferred carboxylates are alkali metal sarcosinates of formula R 19 -CO-N(R 20 )-CH 2 COOM' 1 wherein R 19 is alkyl or alkenyl having from 8 to 18 carbon atoms in the alkyl or alkenyl radical, R 20 is C 1 -C 4 alkyl and M' 1 is an alkali metal.
• the non-ionic surfactant B) can be, for example, a condensation product of from 3 to 8 mol of ethylene oxide with 1 mol of a primary alcohol having from 9 to 15 carbon atoms.
• alkali metal phosphates especially tripolyphosphates, carbonates or hydrogen carbonates, especially their sodium salts, silicates, aluminosilicates, polycarboxylates, polycarboxylic acids, organic phosphonates, aminoalkylenepoly(alkylenephosphonates) or mixtures of those compounds.
• silicates are sodium salts of crystalline layered silicates of the formula NaHSi t O 2t+1 .pH 2 O or Na 2 Si t O 2t+1 .pH 2 O wherein t is a number from 1.9 to 4 and p is a number from 0 to 20.
• zeolithe A preference is given to those commercially available under the names zeolithe A, B, X and HS, and also to mixtures comprising two or more of those components. Zeolithe A is preferred.
• polycarboxylates preference is given to polyhydroxycarboxylates, especially citrates, and acrylates and also copolymers thereof with maleic anhydride.
• Preferred polycarboxylic acids are nitrilotriacetic acid, ethylenediaminetetraacetic acid and ethylenediamine disuccinate either in racemic form or in the enantiomerically pure (S,S) form.
• Phosphonates or aminoalkylenepoly(alkylenephosphonates) that are especially suitable are alkali metal salts of 1-hydroxyethane-1,1-diphosphonic acid, nitrilotris(methylenephosphonic acid), ethylenediaminetetramethylenephosphonic acid, hexamethylenediamin N,N,N',N' tetrakis methanphosphonic acid and diethylenetriaminepentamethylenephosphonic acid, as well as the salts therefrom.
• the mixture may comprise, in addition to the combination according to the invention, one or more additional optical brighteners.
• the detergent or bleach mixture used will usually contain one or more auxiliaries such as soil suspending agents, for example sodium carboxymethylcellulose; salts for adjusting the pH, for example alkali or alkaline earth metal silicates; foam regulators, for example soap; salts for adjusting the spray drying and granulating properties, for example sodium sulphate; perfumes; and also, if appropriate, antistatic and softening agents; such as smectite clays; photobleaching agents; pigments; and/or shading agents.
• auxiliaries can be present in an amount of, for example, 0.1 to 20% by weight, preferably 0.5 to 10 % by weight, especially 0.5 to 5 % by weight, based on the total weight of the detergent.
• the detergent or bleach mixture can optionally contain enzymes. Enzymes can be added to detergents for stain removal.
• the enzymes usually improve the performance on stains that are either protein- or starch-based, such as those caused by blood, milk, grass or fruit juices.
• Preferred enzymes are cellulases, proteases, amylases and lipases.
• Preferred enzymes are cellulases and proteases, especially proteases.
• Cellulases are enzymes which act on cellulose and its derivatives and hydrolyze them into glucose, cellobiose, cellooligosaccharide. Cellulases remove dirt and have the effect of mitigating the roughness to the touch. Examples of enzymes to be used include, but are by no means limited to, the following:
• the enzymes can optionally be present in the detergent.
• the enzymes are usually present in an amount of 0.01-5% by weight, preferably 0.05-5% and more preferably 0.1-4% by weight, based on the total weight of the detergent.
• a fluorescent whitening agent which is selected from the group consisting of the stilbenyl-2H-naphthol (1,2-d) triazol derivatives, the bis(1,2,3-triazol-2yl) stilbene derivatives and the coumarine derivatives in a washing or bleaching process for increasing the whiteness of polyamide or polyurethane/polyamide fibers or fabrics wherein phthaloyl amido peroxy hexanoic acid is present as bleaching agent.
• Washing is carried out in a LINITEST apparatus containing 45g bleached cotton, one sample of 5x5 cm of polyamide 6.6 without initial fluorescent whitening agent, (PA 6.6 w/o FWA), one sample of 5x5 cm of polyamide 6.6 containing an initial fluorescent whitening agent (PA 6.6 with FWA) and one sample of 5x5 cm polyamide / polyurethane 80/20 mixed fabric (PA/PUR).
• Fluorescent whitening agents

Landscapes

• 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)

Priority Applications (1)

Applications Claiming Priority (1)

Publications (1)

Family

ID=41682652

Family Applications (1)

Country Status (1)

Cited By (3)

Citations (4)

• 2009
  • 2009-09-21 EP EP09170857A patent/EP2305786A1/fr not_active Withdrawn

Patent Citations (4)

Non-Patent Citations (1)

Similar Documents

Legal Events