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
  • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
  • C11D1/66—Non-ionic compounds
  • C11D1/83—Mixtures of non-ionic with anionic 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
  • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
  • C11D1/02—Anionic compounds
  • C11D1/04—Carboxylic acids or salts thereof
  • C11D1/10—Amino carboxylic acids; Imino carboxylic acids; Fatty acid condensates thereof
• • 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
  • C11D3/2065—Polyhydric alcohols
• • 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
  • C11D1/42—Amino alcohols or amino ethers
  • C11D1/44—Ethers of polyoxyalkylenes with amino alcohols; Condensation products of epoxyalkanes with amines
• • 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
  • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
  • C11D1/66—Non-ionic compounds
  • C11D1/72—Ethers of polyoxyalkylene glycols
• • 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
  • C11D3/2041—Dihydric alcohols
  • C11D3/2044—Dihydric alcohols linear

Definitions

• the present invention relates to a method for pretreating soiled textiles.
• a paste containing active ingredients to the soiled textiles and then washing the pretreated textiles in a wash liquor, the cleaning of the textiles compared to textiles that have not been pretreated is significantly improved.
• the washing liquor When washing textiles, the washing liquor is generally heated to a temperature which is higher than room temperature.
• the washing performance of the detergent used, for. T. significantly strengthened.
• the heating of the washing liquor and the textiles is associated with an increased energy expenditure during washing.
• some textiles, in particular textiles made of wool or synthetic fibers cannot be washed at elevated temperature for various reasons, attempts have repeatedly been made to achieve good washing results at low washing temperatures. Often, however, the effect of commercially available detergents is reduced or weakened to such an extent that the textiles can no longer be properly cleaned by washing at low washing temperatures.
• Various measures have been attempted to improve the washing effect even at low washing temperatures.
• DE-OS 27 44 642 describes a detergent additive which contains an organic bleach activator in water-releasable combination with a non-particulate substrate.
• a further improvement in the washing performance of detergents enables one Additive which, according to the teaching of DE-OS 28 57 153, contains, in addition to a bleach activator, a combination of an alkoxylated nonionic surfactant and a cationic surfactant with a radical containing 8 to 20 carbon atoms and, moreover, short radicals with 1 to 4 carbon atoms on a substrate.
• a disadvantage of the additives mentioned is that the user of these additives comes into contact with the active ingredients when the additives are removed from the packaging and when the additives are added to the detergent solution, which, apart from a sometimes uncomfortable feeling, can lead to skin irritation.
• Another disadvantage of the additives mentioned is that after washing, the water-insoluble substrate has to be sorted out from the washed textiles.
• DE-OS 34 15 880 describes a washing additive which consists of a mixture of several detergent constituents which are contained in a bag based on polyvinyl alcohol which is soluble in detergent lyes.
• the mixture of several detergent constituents contained in the sachets is in paste form, the paste being adjusted by the addition of an anti-gel agent and certain viscosity regulators so that the paste dissolves quickly and completely in the still cold detergent solution.
• Another solution to the problems mentioned is described in DE-OS 28 57 157.
• detergents contain certain nonionic and certain cationic surface-active compounds in a certain ratio to one another.
• the agents described there can be present as a paste and can also be used for pretreating soiled textiles.
• a process has now been found for the pretreatment of soiled textiles with an agent containing pasty, nonionic and cationic compounds, which surprisingly leads to particularly good results.
• This process is carried out using a paste comprising a mixture comprising at least one nonionic surfactant, at least one nitrogen-containing compound from which a quaternary ammonium compound having a long-chain alkyl or alkenyl radical having 10 to 20 carbon atoms and / or an adduct of 1 to 6 mol Ethylene oxide in 1 mol of a primary fatty amine with a long-chain alkyl or alkenyl radical with 10 to 16 carbon atoms and / or a compound of the formula R-NH-CH2-CH2-COONa, in which R is an allyl or alkenyl radical with 10 to 18 carbon atoms, means in particular with 14 carbon atoms, comprehensive group, contains a polyhydric alcohol as an anti-gel agent and so much of viscosity regulators that it has a vis
• a paste that also contains an activator for per-compounds.
• Such a paste is known from DE-OS 34 15 880 mentioned above as a washing additive which increases the washing power of conventional detergents.
• Textiles in the sense of the present patent application include garments made from natural and / or synthetic fibers to understand.
• the clothes take on oily or greasy soiling, bleachable soiling or pigment soiling when worn, which can be removed by washing in an aqueous washing solution.
• the method according to the invention is effective against all of these soiling, but especially against cosmetic soiling.
• the nonionic surfactants of the paste suitable for the process according to the invention are, above all, adducts of ethylene oxide with fatty or, in particular, oxo alcohols with 12 to 18 carbon atoms. Particularly suitable surfactants are derived from alcohols with 14 to 15 carbon atoms. The best effects are achieved with oxo alcohol ethoxylates which contain 3 to 10, preferably 6 to 8 and in particular about 7 moles of ethylene oxide per mole of alcohol. In many cases it is advisable to add foam regulators; most of the time, the development of foam must be dampened. Suitable foam damping agents are, for example, the known silicone oils.
• the nonionic surfactant content of the paste promotes the removal of greasy or oily soiling during washing.
• the paste contains certain nitrogen-containing compounds from the group of quaternary ammonium compounds and / or ethylene oxide adducts of primary fatty amines and / or of ⁇ -aminoalkyl / alkenyl-propionic acid salts of the formula R-NH to improve the removal of pigment soiling from textiles -CH2-CH2-COONa;
• Suitable quaternary ammonium compounds contain long-chain alkyl or alkenyl radicals with 10 to 20, preferably alkyl groups with 10 to 16 and in particular about 14 carbon atoms.
• the suitable quaternary ammonium compounds contain 3 of the same alkyl groups with 1 to 4 carbon atoms. In particular, these short alkyl groups are methyl groups.
• a particularly suitable quaternary ammonium compound is tetradecyl trimethylammonium bromide. All or part of the quaternary ammonium compound can be replaced by the above-mentioned fatty amine ethoxylate.
• An example of a particularly suitable fatty amine ethoxylate is the adduct of 2 moles of ethylene oxide with primary coconut alkyl amine.
• N-acyl and O-acyl compounds are suitable as activators for per compounds.
• Acetyl compounds have proven particularly useful. Examples of these are tetraacetylglycoluril or pentaacetylglucose or in particular tetraacetylethylenediamine.
• the bleach activators mentioned lead to improved removal of bleachable textile soiling.
• the paste contains polyhydric alcohols which are able to prevent the known gelling of the nonionic surfactant when it comes into contact with water.
• Suitable antigelling agents are preferably polyhydric alcohols having 2 to 4 carbon atoms, which are intimately mixed with the nonionic surfactant.
• the antigelling effect of the polyhydric alcohol can be enhanced if, instead of the polyhydric alcohol alone, a mixture of a polyhydric alcohol and condensation products of C10 to C20 fatty alcohols with 1 to 4 moles of ethylene oxide per mole of fatty alcohol is used.
• Polyhydric alcohols which can be used as antigelling agents are, for example, 1,2-propylene glycol, ethylene glycol or glycerol or mixtures of the alcohols mentioned.
• An example of a particularly suitable fatty alcohol ethoxylate which can be used in a mixture with the polyhydric alcohol to enhance the anti-gelling effect is tallow alcohol ethoxylate with 2 moles of ethylene oxide; but also C12- to C14 fatty alcohol ethoxylate with 3 moles of ethylene oxide, which contains about 70% C12 fatty alcohol ethoxylate, is suitable as an anti-gelling agent.
• the antigelling effect of the antigelling agent can be increased further if, in addition to the antigelling agents described hitherto, compounds which are readily soluble in water, in particular sodium borate, sodium chloride, sodium sulfate, sodium acetate or else sugar, are used.
• a viscosity in the range from 1,000 to 100,000 mPas is important for good dissolution behavior of the paste.
• viscosity regulators for example water-insoluble zeolite, in particular of the zeolite A type, highly disperse silica, sheet silicates, in particular swellable sheet silicates of the bentonite and hectorite type, but also water-soluble salts, and the like
• Sugar, polyglycols or fatty alcohol ethoxylates with a high proportion of ethylene oxide means that the fatty alcohol ethoxylate contains about 15 to 25 moles of ethylene oxide per mole of fatty alcohol.
• the paste advantageously contains small amounts of chelating agents for complexing disruptive heavy metal ions.
• Water-soluble salts of alkane polyphosphonic acid from the group of the phosphonalkane polycarboxylic acids and the amino- and hydroxide-substituted alkane polyphosphonic acids in particular the alkali salts of aminotris- (methylenephosphonic acid), dimethyleneaminomethane diphosphonic acids, 1-hydroxyethane-1,1, -diphosphonic acid, have been particularly suitable for this purpose , 2-dicarboxylic acid, 2-phosphonobutane-1,2,3-tricarboxylic acid and especially the hexasodium salt of ethylenediaminotetramethylenephosphonic acid.
• Suitable pastes contain viscous to pasty mixtures of the following active ingredients: 2 to 30 parts by weight of nonionic surfactant, 0.5 to 10 parts by weight of nitrogenous compound, 2 to 30 parts by weight activator for per compounds, 0 to 5 parts by weight of heavy metal complexing agents.
• the pretreatment process according to the invention leads to particularly good results if the paste is applied to those areas of the textiles to be washed which are stained or particularly soiled, for example because they come into contact with dirt particularly frequently or intensively.
• paste active ingredient is to be understood as the mixture of nonionic surfactant, nitrogen-containing compound, activator and, if appropriate, heavy metal complexing agent.
• the paste can be applied more or less evenly to the textiles in order to achieve the desired effect, particularly good results are achieved if the paste is applied to the dry textiles by spreading them into a thin layer.
• the spreading can be done by hand, but it is advisable to use a distributing aid for this.
• a comb or a squeegee or a notched trowel represent, for example, suitable distributing aids; however, it is expedient to use a tool covered with bristles, for example a brush with appropriately stiff bristles or a brush.
• a bristle-assisted device which surrounds the outlet opening of a tube containing the paste.
• the tube is compressible and consists of a uniform material, such as organic polymers or metal or a composite material consisting of several different materials.
• the tube and the bristle-covered aid for applying the paste can be made of one piece or composed of several pieces. If the bristles of the aid taper towards their free end, ie towards the end facing away from the tube, they are particularly suitable, in particular if the bristles have a triangular cross section, for example a cross section in the form of an equilateral Have triangles. Bristles with a length of approximately 3 to approximately 30 mm have proven to be particularly suitable for uniform application. The size of the cross-sectional area of the bristles depends on the density of the bristle trimmings.
• Auxiliaries with approximately 40 to approximately 100 bristles per cm2 and accordingly a bristle cross section of approximately 1 to approximately 2 mm2, measured at the end of the bristles facing the tube, are particularly suitable for the process according to the invention.
• a tube with a brush applicator of the type described above, for carrying out the he A suitable method according to the invention is known, for example, from German Utility Model Application No. 85 22 059.0. In many cases, it should be expedient if the outlet opening of the tube is covered with a bristle-covered aid for spreading the paste and closed when it is not in use.
• Another object of the present invention is an apparatus for performing the method according to the invention.
• This device essentially consists of a tube containing a paste of the type and composition described above with a bristle-coated spreading aid which surrounds the outlet opening of the tube.
• the soiled test textiles were then coated in a test series 1 with 20, 30 and 40 g of a paste of the following composition: 18.4 wt .-% C14- / C15 oxo alcohol + 7 moles of ethylene oxide 17.1% by weight of tetraacetylethylene diamine 6.6% by weight of tetradecyltrimethylamminoium bromide 1.4% by weight of ethylenediaminetetramethylenephosphonate, hexasodium salt 6.6% by weight of 1,2-propylene glycol 6.6% by weight glycerin 1.8% by weight oleyl / cetyla alcohol + 2 moles of ethylene oxide 9.9% by weight poly wax 4000 11.9% by weight Na acetate + 3 H2O 15.8% by weight Na sulfate
• the pastes were made of a plastic tube, which was approx. 140 mm long from the welded closure to the tube neck and had a diameter based on a circular cross section 45 mm.
• the outlet opening of the tube was circular with a diameter of approx. 5 mm.
• the tube opening was surrounded by a ring with an outer diameter of approx. 30 mm made of plastic bristles.
• the bristles had a length of 15 mm, tapered towards their free end and were about 1 mm apart.
• the cross-section of the bristles was that of an equilateral triangle.
• the tube had a volume of approx. 200 ml and had a thread on the tube neck to accommodate a cap.
• test textiles treated in this way were washed in an automatic household washing machine (Miele De Luxe W 433) together with 3 kg of clean filler fabric with the addition of 228 g of a commercially available heavy-duty detergent (corresponding to 4/5 of the target dosage) and using the washing program for colored textiles washed at 60 ° C alkali temperature.
• the washed and dried textiles were checked for the remaining soiling intensity, each assessment being carried out on 3 test textiles.
• test series 11 soiled test textiles were washed with the only difference that the pretreatment paste was not spread onto the test textiles but was added to the wash liquor.
• the washing results for test series 1 and 11 given in Table 1 were obtained.

Priority Applications (1)

Applications Claiming Priority (2)

Publications (2)

Family

ID=6300395

Family Applications (1)

Country Status (7)

Cited By (4)

Families Citing this family (12)

Citations (2)

Family Cites Families (8)

• 1986
  • 1986-05-09 DE DE19863615544 patent/DE3615544A1/de not_active Withdrawn
• 1987
  • 1987-05-04 ES ES87106422T patent/ES2011036B3/es not_active Expired
  • 1987-05-04 EP EP87106422A patent/EP0244796B1/fr not_active Expired
  • 1987-05-04 AT AT87106422T patent/ATE47151T1/de not_active IP Right Cessation
  • 1987-05-04 DE DE8787106422T patent/DE3760740D1/de not_active Expired
  • 1987-05-08 DK DK236087A patent/DK236087A/da not_active Application Discontinuation
  • 1987-05-09 JP JP62113396A patent/JPS62268871A/ja active Pending
• 1989
  • 1989-03-23 US US07/328,751 patent/US4931063A/en not_active Expired - Fee Related

Patent Citations (3)

Also Published As

Similar Documents

Legal Events