Detergent composition containing mixture of chelating agents

FIELD: chemistry.

SUBSTANCE: described is a compact liquid detergent composition containing less than 25% water by mass of the composition and a mixture of chelating agents, wherein the first chelating agent is selected from a group consisting of a sodium salt of ethylenediamine-N,N'-disuccinic acid, ethylenediamine-N,N'- disuccinic acid which is neutralised with 2-aminoethanol, and mixtures thereof, and the second chelating agent is a sodium salt of diethylene triamine pentaacetate.

EFFECT: high activity of the chelating agents, efficient stain removal.

8 cl, 1 tbl

 

The technical field to which the invention relates.

The present invention relates to a compact liquid cleaning tool, to be used when cleaning laundries containing a mixture of chelating agents.

The level of technology

Chelating agents are often included in the composition of detergents, due to the presence of metal ions that can be harmful for the intended use. Many vysokoosnaschenny spots include metals. Remove metal can often be discolored spot and/or to facilitate removal by destabilization of the structure. Metal ions can also catalytically decomposing bleach in the composition, which leads to significantly degraded operation. In particular, the radical ions of transition metals such as Fe, Cu and Mn, can accelerate the decomposition of bleach and peroxide during washing and bleaching. Ions, which add rigidity to the water such as Ca and Mg may also lead to adverse interactions with surfactants, which are used in compositions for washing, and lead to a decrease in the available effective concentration. Fatty acids may precipitate as calcium Soaps, leading to the formation of soap residue.

Chelating agents are widely used as chemical substances that control the adverse effects of metal ions in washing the products by chelation of the metal. Chelating agents are often organic compounds, forming multiple links with a single metal ion. Chelating agents can be introduced into the detergent in acid form or in salt form; usually salt form increases the solubility of the chelating agent in the water. However, sodium ions will interact with fatty acids detergent composition, leading to the formation of solid soap. Therefore, Chelating agents must be prepared in a composition containing as small amount of sodium ions as possible, however, maintaining the solubility of the chelating agents. Another requirement for chelating agents is their solubility. Selected Chelating agents must be soluble and remain soluble without the requirement of adding water to the detergent composition. Additionally, Chelating agents should be stable in solution during storage.

Phosphate-containing Chelating agents are widely used due to the ability of phosphate to block alkaline earth metals. However, in view of the legislation in different countries, the level of phosphate in detergents should be substantially reduced. Alternative manufacturers of detergents deliver a greater amount of detergents that do not contain phosphates. Therefore, the composition of the cleansing crestfallen to meet regulatory requirements in different countries.

In the preparation of the compact liquid detergent composition it is necessary to choose chelating agent, the relevant criteria ability to control metal ions, solubility in detergent compositions, the stability during production and storage, and regulatory requirements.

When solving these problems. The applicant has unexpectedly discovered that by combining a chelating agent diethylenetriaminepentaacetate (DTPA), in the form of sodium salt, from 8.8-ethylenediaminetetra acid (EDDS) in 2-aminoethanol neutralized form or in the form of sodium salt, the total number of chelating agents can be reduced while maintaining good solubility and high activity. Additionally, the number of unwanted sodium ions, which are injected into the compact liquid detergent composition is reduced, and therefore the reduced formation of undesirable sodium soap. Compact liquid washing composition in accordance with the present invention is also consistent with the broader regulatory requirements and can be used as a single composition.

Chelating agents known as included in the cleaning compositions. For example, in WO 2009/013534 (Innospec Limited) salt ethylenediaminetetra acid (EDDS) is used to stabilize the hydrogen peroxide. In WO 2009/013539 (Innospec Limited) magnesium salt ethylenediaminetetra acid (EDDS)are used in detergent compositions in water-soluble, non-hygroscopic solid form. In WO 2009/013541 (Innospec Limited) a mixture of chelating agents 1-hydroxyethylidene-1,1-diphosphonic acid (HEDP) and Ethylenediamine dinternal acid (EDDS) are used in detergent compositions. In EP 1280882 (Procter & Gamble) chelating agents used in the liquid compositions for softening fabrics. In WO 01/83668 and WO 02/074893 (both Procter & Gamble) chelating agents used in cleaning products.

The invention

Compact liquid washing composition containing less than 25% water by weight of the composition and the mixture of chelating agents, where the first chelating agent selected from the group consisting of sodium salt Ethylenediamine-N,N'-dinternal acid, Ethylenediamine-N,N'-dinternal acid, neutralized 2-aminoethanol, and mixtures thereof, and the second chelating agent is a sodium salt of diethylenetriaminepentaacetate.

Detailed description of the invention

The detergent product in accordance with the present invention is a compact liquid detergent are acceptable to use in the water-soluble pouch, more preferably a multi-chamber water-soluble bag or in the form of a traditional liquid detergent, canned in containers. Water-soluble pouch, if present, contains a water-soluble film and at least a first and optionally a second camera. The first chamber contains p is pout composition, containing a mixture of chelating agents. The second chamber contains the second composition. Preferably, the pouch contains a third chamber and a third composition. Optional second and third compositions are preferably visually distinguishable from each other and from the first song.

Compact liquid washing composition

The composition in accordance with the present invention is a compact liquid. The term 'liquid' imply the inclusion of a liquid, paste, wax and gel compositions. The liquid composition may contain a solid substance. Solids may include powder or agglomerates, such as microcapsules, backing, needles, or one or more pearlescent beads or mixtures thereof. This solid element may provide the technical advantage by component washing or as a component of pre-treatment, delayed or successive release. Alternative it can provide an aesthetic effect.

The term 'compact' imply the inclusion of a liquid, paste, wax or gel compositions containing less than 25% water by weight of the composition.

In the preferred implementation of this composition is in the form of water-soluble pouch, more preferably a multi-chamber bag. Water-soluble pouch, the beam presence, contains water-soluble film and at least first and optional second camera. The first chamber contains a first composition comprising a mixture of chelating agents. The second chamber contains a second, preferably another song.

Chelating agents

Chelating agents used in the present invention to control the content of metal ions to stabilize the bleach in the detergent solution and during storage, and to improve stain removal by extraction of metal ions from stains.

Chelating agents are molecules that form coordination covalent bonds with metal ions to form chelates. Chelates are coordination compounds in which the Central metal atom binds to one or more of the atoms in at least one other molecule or ion, called a ligand, so that there is formed, at least one heterocycle with a metal ion as part of each cycle. Chelating agents are widely used in detergents, Soaps, cleaning products and water treatment. Chelating agents are typically polyvalent molecules, usually aminocarboxylate having at least two binding site. The effectiveness of chelating agents can be measured by measuring the binding constants with different IU what Allami. Within, Chelating agents are generally more effective at higher pH value of the washing solution, which prevents protonation of chelating agents.

The applicant was found that the combination of chelating agents diethylenetriaminepentaacetate (DTPA) in the form of a sodium salt of S,S-Ethylenediamine-N,N'-dinternal acid (EDDS) in a form neutralized 2-aminoethanol (MEA), or in the form of sodium salt, creating synergies between chelating agents and the number of chelating agents can be reduced while maintaining a high level of activity and the desired solubility. This allows greater flexibility when composing. Additionally, it reduces the number of unwanted sodium ions included in the compact liquid detergent composition. Decreased levels of chelating agents to increase the solubility and stability of chelating agents and allows the use of a mixture of chelating agents in a compact liquid detergent compositions. Compact liquid washing composition in accordance with the present invention is also consistent with a broader range of regulatory requirements, as chelating agents do not contain any phosphates.

Chelating agents are preferably fully neutralized form; however, the acid form or partially neutral is consistent forms are included in the scope of the present invention.

EDDS is an effective chelating agent for transition metals and heavy metals. Transition metals can cause problems in compositions containing bleaching agents, as they may cause decomposition of peroxide species. This can lead to degraded bleaching characteristics and formation of hydroxyl radicals that can cause damage to the fibers and reduced stability of the products. EDDS has two stereogenic centre and therefore has three possible stereoisomer. The mixture of chelating agents in the present invention may include any of the stereoisomers. Therefore, it can be selected from [R,R]-EDDS, [R,S]-EDDS, [S,S]-EDDS and any combination. Preferably, EDDS is present in essentially [S,S]-form. Preferably, at least 50%, more preferably at least 70% of EDDS is in [S,S] configuration. [S,S]-EDDS form EDDS is biodegradable and therefore the most preferred stereoisomer.

EDDS can be present in a compact liquid detergent composition in the form of sodium salt or in the form MEA neutralized, preferably in the form neutralized MEA.

DTPA is an effective chelating agent for transition metals and heavy metals. DTPA is polyaminocarboxylic acid consisting of Diethylenetriamine frame, modified five CT is oxymethylene groups. DTPA is used in the form of its conjugate base, having a high affinity for metal cations.

DTPA may be present in a compact liquid detergent composition, preferably DTPA in the form of a metal salt. More preferably, DTPA is present in the compact liquid detergent composition in the form of sodium salt, containing from 2 to 5 moles of sodium per mole DTPA.

Chelating agents are added to compositions, preferably in liquid form, and they preferably remain in liquid form at the time of receipt, storage area and use. DTPA is soluble in a 1:2 ratio with sodium and EDDS is a water-soluble in the form neutralized by aminoethanol, or 1:2 ratio with sodium.

In a preferred implementation, the combination of chelating agents in the present invention contains from ten moles of EDDS in the form neutralized MEA, on one mole of the sodium salt of DTPA to one mole of EDDS in the form neutralized MEA, ten mol sodium salt of DTPA.

The composition in accordance with the present invention comprises a mixture of chelating agents from 0.05% to 5% by weight of the composition, preferably from 0.1% to 4% by weight of the composition and most preferably from 0.5% to 2.0% by weight of the composition.

Optional components of the compact liquid detergent composition

Compositions in accordance with the present izobreteniem to contain one or more ingredients, as discussed in this application below.

The solvent system

The solvent system data in a compact liquid detergent compositions may be a mixture of organic solvents. This composition does not contain any added water. The high water content may have unintended effects on film properties. Additionally, too high or too low water content may have a negative impact on the washing composition, i.e. causing the interface. Water enters into the composition of the raw materials. Preferred organic solvents include 1,2-propandiol, ethanol, glycerin, dipropyleneglycol, methylpropanol and mixtures thereof. Other lower alcohols, C1-C4alkanolamine, such as monoethanolamine and triethanolamine may also be used. The solvent system may be missing, for example, in anhydrous solid implementations of the invention, but more typically present at levels in the range from 0.1% to 98%, preferably at least 1% to 50%, more typically from 5% to 25%.

Water is typically present at levels in the range from 5% to 25%, preferably from 7% to 20%, more preferably from 8% to 15% by weight of the compact liquid detergent composition.

Surfactants

The composition in accordance with the present invention may contain surface is IDT-active substances, which are used in the present invention as a detergent surfactant to the suspension of the dirt.

Applied surfactants can be anionic, nonionic, zwitterionic, apoliticism or cationic type, or may include compatible mixtures of such types. More preferably, the surfactants are selected from the group consisting of anionic, nonionic, cationic surfactants and mixtures thereof. Preferably, the composition is essentially not contain betaine surfactants. Detergent surfactants useful in this application is described in U.S. patent 3,664,961, Norris, issued may 23, 1972, in U.S. patent 3,919,678, Laughlin et al., issued December 30, 1975, in U.S. patent 4,222,905, Cockrell, issued September 16, 1980, and in U.S. patent 4,239,659, Murphy, issued December 16, 1980, Anionic and nonionic surfactants are preferred.

Useful anionic surfactants may themselves be of several different types. For example, water-soluble salts of higher fatty acids, i.e., "Soaps", are useful anionic surfactants in the compositions in this application. These include Soaps of alkali metals such as sodium, potassium, ammonium and alkylammonium salts of higher fatty acids containing from 8 to 24 carbon atoms, and preferably from 12 to 18 carbon atoms. Soap can be obtained direct saponifiable fats and oils or by the neutralization of free fatty acids. Particularly useful are the sodium and potassium salts of the mixtures of fatty acids derived from coconut oil and solid fat, i.e. sodium or potassium soap on the basis of solid fat and coconut oil.

Additional nemaline anionic surfactants suitable for use in this application include water-soluble salts, preferably alkali metal salts and ammonium salts, reaction products with organic sulfuric acids containing in its molecular structure an alkyl group containing from 10 to 20 carbon atoms, and ester group, sulfonic acid or sulfuric acid. (The term "alkyl" includes alkyl portion of the acyl groups.) Examples of this group of synthetic surfactants are (a) alkyl sulphates of sodium, potassium and ammonium, in particular, obtained by sulfonation of higher alcohols (C8-C18carbon atoms), such as obtained by recovering the solid glycerides of tallow or coconut oil; b) alkylpolyoxyethylene sodium, potassium and ammonium, in particular those in which the alkyl group contains from 10 to 22, preferably 12 to 18 carbon atoms, which ive polyethoxylate chain contains from 1 to 15, preferably from 1 to 6 ethoxylated fragments; and (c) alkylbenzenesulfonate sodium and potassium, in which the alkyl group contains from 9 to 15 carbon atoms, in the configuration of the non-branched chain or branched chains, for example, of the type described in U.S. patent 2,220,099 and 2,477,383. Especially valuable are alkylbenzenesulfonate with linear non-branched chain, in which the average number of carbon atoms in the alkyl group ranges from 11 to 13, abbreviated as C11-C13The LAS.

Preferred nonionic surfactants are those having the formula : R1(OC2H4)nOH, where R1represents a C10-C16alkyl group or a C8-C12alkylphenyl group, and n is from 3 to 80. Particularly preferred are the condensation products of C12-C15alcohols with from 5 to 20 moles of ethylene oxide per mole of alcohol, for example, With12-C13alcohol condensed with 6.5 by moles of ethylene oxide per mole of alcohol.

The composition in accordance with the present invention contains from 1 to 80% surfactant by weight of the composition. Surfactant is a component of the first composition. Preferably, the specified first composition contains from 5% to 50% surfactant by weight of the composition. The second and third the composition is, if present, may contain a surfactant in the range from 0.1 to 99.9%.

If the selected surface-active substance is LAS, the composition preferably contains from 5% to 30% of LAS by weight of the compact liquid detergent composition, more preferably from 7% to 25% of LAS by weight of the compact liquid detergent composition.

Polymers that enhance the action of surface-active substances

The composition in accordance with the present invention may optionally contain polymers. Polymers acceptable for the present invention can enhance the efficiency of surfactants, that is why they are called polymers that enhance the action of surfactants. Most General purpose surfactant is emulsification or dispersion of one liquid phase into another - usually oil phase into the water. If two immiscible liquids are in contact, is formed between them border. Increasing the phase boundary leads to the dispersion of one phase to another in the form of small drops. The lower the interfacial tension, the more one phase emuleret to another. Therefore, low interfacial tension correlate with cleaning performance when cleaning and washing. The term "polymer, reinforcing the effect of surfactants" means aimery, able to reduce the time to achieve equilibrium interfacial tension surfactant.

Additional polymers that enhance the action of surface-active substances that contribute to the collapse of the micelles on the fats. The main characteristic of the polymer, the reinforcing action of surface-active substances, is its amphiphilicity. They have a balanced ratio of hydrophobic and hydrophilic structural elements. Therefore, they are primarily hydrophobic enough to absorb hydrophobic contamination and to remove it with surface-active substances from the surface. Secondly, they are sufficiently hydrophilic to keep separated hydrophobic contamination in the solution for washing and cleaning and to prevent its re-deposition on the surface. For example, in polyethylenepolypropylene (PEG-PVAc) polymer, hydrophobic PVAc part of PEG-PVAc polymer provides interaction with surface-active agent and a hydrophobic fatty spots, while the hydrophilic polietilenglikolja PEG portion of the PEG-PVAc polymer retains the structure of the polymer-surfactant, dispersed in water.

Amphiphilic polymers that enhance the action of surface-active substances, in the present invention, preferably is, based on water soluble polyalkyleneglycol due to the hydrophilic skeleton and hydrophobic side chains formed by polymerization of the vinyl ester component. These polymers preferably have an average of one or fewer sites grafted polymerization at 50 alkalinising units and mean molar mass Mw of from 3000 to 100000.

The most preferred polymers that enhance the action of surfactants for the present invention, known under the trade names Sokalan PG101 (PEG-PVAc), Sokalan and Sokalan HP22 that sells BASF Aktiengesellschaft, Ludwigshafen, Germany. Polymers that enhance the action of surfactants useful in this application are described in WO 2007/138053 (BASF Aktiengesellesschaft), WO/2007/138054 (Procter & Gamble Company).

Compact liquid washing composition in this application contains from 0.1% to 10% of polymer, the reinforcing action of surfactants, by weight of the compact liquid detergent composition, preferably from 3% to 8% of the polymer, the reinforcing effect of surfactants by weight of the compact liquid detergent composition, and more preferably, approximately 4% of the polymer, the reinforcing effect of surfactants by weight of the compact liquid detergent composition.

The agent, which imparts opacity

Compact liquid washing composition may contain the agent, applying the second opacity. Agent, giving the opacity, in accordance with the present invention is a solid inert compound that is not soluble in the composition and reflects, scatters, or absorbs the most light wavelengths.

Agent, giving the opacity is preferably selected from the group consisting of styrene/acrylate latex, titanium dioxide, tin dioxide, any modified forms of TiO2for example, a modified carbon TiO2or doped with metal (e.g. platinum, rhodium) TiO2or tin oxide, oxychloride of bismuth or bismuth oxychloride coated TiO2/mica coated silica TiO2or coated with a metal oxide and mixtures thereof. Particularly preferred styrene/acrylate latexes are latexes available from Rohm & Haas Company, sold under the trade name Acusol. The latexes are characterized by pH values from about 2 to about 3, containing approximately 40% solids in water, and a particle size of from about 0.1 to about 0.5 microns. Particularly preferred Acusol.RTM. the polymers include Acusol.RTM. OP301 (styrene/acrylate) polymer, Acusol.RTM. OP302, (styrene/acrylate/divinylbenzene copolymer), Acusol.RTM. OP303 (styrene/acrylamide copolymer), Acusol.RTM. OP305 (styrene/PEG-10 maleate/nonoxynol-10 maleate/acrylate copolymer) and (styrene/acre ilat/PG-10 dinality copolymer and mixtures thereof. The preferred species have a molecular weight of from 1000 to 1000000, more preferably from 2,000 to 500,000, most preferably from 5000 to 20000.

The agent, which imparts opacity, preferably is present in sufficient quantities in order to keep the composition in which it is included, white. If the agent giving the opacity, is an inorganic agent, giving the opacity (e.g. TiO2or its modifications), the agent, giving the opacity, preferably present at a level from 0.001% to 1%, more preferably from 0.01% to 0.5%, most preferably from 0.05% to 0.15% by weight of the compact liquid detergent composition.

If the agent giving the opacity, is an organic agent, giving the opacity (for example styrene/acrylate latexes), the agent, giving the opacity, preferably present at a level from 0.001% to 2.5%, more preferably from 1% to 2.2%, most preferably from 1.4% to 1.8% by weight of the compact liquid detergent composition.

Antioxidant

Compact liquid washing composition may contain an antioxidant. The second and the third composition, if present, may also contain an antioxidant. Though not wishing to be bound by theory, applicants believe that the presence of antioxidant reduces or preferably stops re is the Ktsia reactive compounds in the composition, for example, perfumes, which tend to oxidize over time and with increasing temperature, and which may seek to yellowing.

Antioxidant, in accordance with the present invention is a molecule capable of slowing or preventing the oxidation of other molecules. Oxidation reactions can lead to the formation of free radicals, which, in turn, trigger a chain reaction of decomposition. Antioxidants terminate these chain reactions by removing intermediate free radicals and ingibirovaniya other oxidation reactions by autoxidation. In the result, antioxidants are often reducing agents. The antioxidant is preferably selected from the group consisting of butylated of hydroxyltoluene (VIT), bottled hydroxyanisole (BHA), trimetoxybenzoic acid (TMA), α, β, λ and δ tocopherol (vitamin E acetate), 6 hydroxy-2,5,7,8-Tetra-methylchromone-2-carboxylic acid (trolox), 1,2,benzisothiazolin-3-one (prolixa GLX), tannic acid, gallium acid, Timeguard AO-6, Timeguard TS, ascorbic acid, alkylated phenol, ethoxyquin 2,2,4 of trimethyl, 1-2-dihydroquinoline, 2,6 di or tert or butylhydroquinone, tert-butylhydroxyanisole, lignosulfonic acid and its salts, benzofuran, benzopyran, tocopherolacetate, bottled, hydroxybenzo the Noah acid and its salts, gallium acid and its alkyl esters, uric acid, its salts and alkyl esters, sorbic acid and its salts, dihydroxyfumaric acid and its salts, and mixtures thereof. The preferred antioxidants are selected from the group consisting of sulfites and hydrosulfites alkali and alkaline earth metals, preferably of sulfite and hydrosulfite sodium.

The antioxidant is preferably present at a level from 0.01% to 2%, more preferably from 0.1% to 1%, most preferably from 0.3% to 0.5% by weight of the compact liquid detergent composition.

If you use inorganic agent, giving the opacity, the agent, giving the opacity, and the antioxidant is preferably present in a ratio of from 0.1 to 0.5, more preferably from 0.12 to 0.35. If using an organic agent, giving the opacity, the agent, giving the opacity and the antioxidant is preferably present in a ratio of from 2 to 6, more preferably from 3 to 5.

The rheology modifier

In the preferred implementation of the compact liquid washing composition comprises a rheology modifier. The rheology modifier is chosen from the group consisting polimernyh crystalline compounds with hydroxy-functional group, polymer rheology modifiers, giving characteristics resigen the after shift aqueous liquid matrix composition. Crystalline compounds containing hydroxy-functional group, are rheology modifiers, forming filamentary structure of the system throughout the matrix composition after crystallization in situ in the matrix. Specific examples of preferred crystal containing hydroxyl group of rheology modifiers include castor oil and its derivatives. Particularly preferred are derivatives of hydrogenated castor oil, such as hydrogenated castor oil and hydrogenated castor wax. Commercially available, on the basis of castor oil, crystalline, containing a hydroxyl group, rheology modifiers include THIXCIN® from Rheox, Inc. (now Elementis). The polymeric rheology modifier is preferably selected from polyacrylates, polymeric resins, other nasality polysaccharides, and combinations of such polymeric substances. Preferred polymeric resinous substances include pectin, alginate, arabinogalactan (gum Arabic), carrageenan, Gellan gum, xanthan gum, guar gum and mixtures thereof.

Useful agents for fabric care

Compact liquid detergent composition may contain useful agent for textile care. As used in this application, "a useful agent for textile care" refers to any substance which can provide beneficial effects on the fabric care such as fabric softening, color protection, reduction of stall/vspuchivanija, warning sachivalaya, preventing wrinkling, etc. for items of clothing and fabrics, especially cotton and enriched with cotton garments and fabrics, if appropriate quantity of substance present in the garment/fabric. Non-limiting examples of useful agents for textile care include cationic surfactants, silicones, polyolefin waxes, latex, derived fatty Sugars, cationic polysaccharides, polyurethanes, fatty acids and mixtures thereof. Useful agents for textile care, if they are present in the compact liquid detergent composition in an acceptable manner are at levels up to 30% by weight of the compact liquid detergent composition, more typically from 1% to 20%, preferably from 2% to 10%.

Detergent enzymes

Acceptable detergent enzymes for use in this application include protease, amylase, lipase, cellulase, carbohydrate, including mannanase and endoglucanase, and mixtures thereof. Enzymes can be used at levels known from the prior art, for example, at levels recommended by the suppliers, such as Novo and Genencor. Typical levels in a compact liquid detergent compositions comprise from 0.0001% to 5%. In the presence of enzymes, they can be applied on full-time is low, for example, from 0.001% or below, in certain implementations of the present invention; or they can be used in detergent compositions for washing for use in harsher conditions in accordance with the present invention at higher levels, for example, of 0.1% or more. In accordance with the preference of some consumers for "non-biological" detergents, the present invention includes an enzyme-containing implementation, and implementation that does not contain enzymes.

The agent that promotes deposition

As used in this application, the agent that promotes deposition"refers to any cationic polymer, or a combination of cationic polymers, which essentially increase the deposition of a useful agent for textile care on the fabric during washing. Preferably, the agent that promotes deposition is cationic or amphoteric polymer. Amphoteric polymers in accordance with the present invention will also have a total cationic charge, ie; the total cationic charge of such polymers will exceed the total anionic charge. Non-limiting examples of agents that increase sedimentation, are cationic polysaccharides, chitosan and its derivatives and cationic synthetic polymers. Preferred cationic polysaccharides include cationic cellulose derivatives, Tinnie derivatives of the guar gum, chitosan and derivatives and cationic starches.

Compact liquid detergent composition can optionally contain the amendment. Acceptable builders include polycarboxylate the builders, including cyclic compounds, particularly alicyclic compounds, such as described in U.S. patent 3,923,679; 3,835,163; 4,158,635; 4,120,874 and 4,102,903. Particularly preferred are the citrate builders, e.g., citric acid and its soluble salts (particularly sodium salt). Other preferred builders include silicates, as zeolite a, b or MAP; fatty acids or their salts, preferably salts of sodium, preferably C12-C18saturated and/or unsaturated fatty acids; and carbonates of alkali or alkaline earth metals, preferably sodium carbonate.

Compact liquid washing composition in accordance with this application contains from 2% to 20% fatty acid by weight of the compact liquid detergent composition, preferably from 5% to 15% fatty acid by weight of the compact liquid detergent composition, and most preferably from 6% to 10% fatty acid by weight of the compact liquid detergent composition.

Whitening system

Whitening agents that are acceptable in this application include chlorine and oxygen bleaches, in which osobennosti inorganic perpetrate salt, such as sodium perborate mono - and tetrahydrate, and sodium percarbonate, optional covered to provide a controlled rate of release (see, for example, GB-A-1466799 of sulphate/carbonate coatings), preformed organic peroxyacids and their mixtures with organic peroxynitrate bleach precursors and/or containing transition metal bleach catalysts (especially manganese or cobalt). Inorganic perpetrate salt is typically incorporated at levels ranging from 1% to 40% by weight, preferably from 2% to 30% by weight and more preferably from 5% to 25% by weight of the compact liquid detergent composition. Peroxynitrate bleaching precursors for use in this application include the precursors perbenzoic acid and substituted perbenzoic acid; cationic peroxynitrate precursors; peracetic acid precursors, such as TAED, the precursor sodium acetoxybenzoic and pentaacetate; precursors permananetly acid, such as sodium 3,5,5-trimethylcyclohexylisocyanate (ISO-NOBS) and sodium nonenvironmental sulfonate (NOBS); amazonienne alkylperoxide precursors (EP-A-0170386); and benzoxazinopyrazoline precursors (EP-A-0332294 and EP-A-0482807). Bleach precursors are typically incorporated at levels ranging from 0.5% to 2%, preferably from 1% to 10% by weight of the composition, while the pre-formed organic peroxyacids themselves are typically incorporated at levels ranging from 0.5% to 25% by weight, more preferably from 1% to 10% by weight of the compact liquid detergent composition. Bleaching catalysts preferred for use in this application include magnesium triazacyclononane and related complexes (US-A-4246612, US-A-5227084); Co, Cu, Mn and Fe piperidylamine and related complexes (LJS-A-5114611); and pentamycetin cobalt(III) and related complexes (US-A-4810410).

Brightening agent

Compact liquid washing composition may contain a bleaching agent. Such dyes was found to show good colouring efficiency during the washing cycle of the washing, not showing excessive unwanted accumulation during washing. Brightening agent included in the total detergent composition for washing in a quantity sufficient to ensure the effect of shading fabric washed in a solution containing detergent. In one implementation, miogeoclinal the bag contains, by weight, from 0.0001% to 1%, more preferably from 0.0001% to 0.5% by weight of the compact liquid detergent composition, and even more preferably from 0.0001% to 0.3% by weight of the compact liquid detergent composition.

Pearlescent agent

Compact liquid detergent to the notizie in accordance with the present invention may contain pearlescent agent. Specified pearlescent agent may be organic or inorganic, but preferably inorganic. Most preferably pearlescent agent is selected from mica, mica coated with TiO2, bismuth oxychloride or mixtures thereof.

Odorant

Odorants is preferably introduced in a compact liquid detergent composition in accordance with the present invention. Odorants can be obtained as a pre-mixed liquid, can be associated with a carrier substance, such as a cyclodextrin, or may be encapsulated. When the encapsulation of fragrances preferably encapsulate melamin/formaldehyde floor.

Other excipients

Examples of other acceptable cleansing auxiliary substances include, but are not limited to the above, enzyme stabilizing systems; agents seizing, including agents fixing anionic dyes, complexing agents for anionic surfactants, and mixtures thereof; optical brightening agent additive or fluorescent substances; gryazeudalyayuschaya polymers; dispersants; surge pricing; dyes; pigments; girotropnye substances, such as toluensulfonate, kumulantami and naphthalenesulfonate; colored speckles; colored substrate, spheres or extrudates; agents, softening clay, and see the sea.

Getting songs

Compact detergent compositions in this application can be, in General, obtained by mixing the ingredients with each other. When using pearlescent substances it should be added in the final stages of mixing. When using rheology modifier, it is preferable for the initial formation of a premix in which the rheology modifier dispersed in parts of water, and optional other ingredients over time is used for compositing. This premix is formed in such a way that it forms a structured liquid. This structured liquid can then be added to the premix, while the premix is stirred, use of surface-active substance(s) and the necessary auxiliary substances for Laundry, along with water and any optional detergent auxiliary substances of the composition.

The material of the bag

If a compact liquid washing composition Packed in pouches, the pouch is preferably made of a film material which is soluble or dispersible in water and has a solubility in water constituting at least 50%, preferably at least 75%, or even at least 95%. Solubility in water is measured by the method described in this application, after using the project for a glass-filter with a maximum pore size of 20 microns: 50 grams ± 0.1 gram of the material of the bag add in a pre-weighted chemical beaker 400 ml and add 245 ml ± 1 ml of distilled water. It is intensely stirred on a magnetic stirrer set at 600 rpm./minutes, within 30 minutes. Then, the mixture is filtered through a folded filter of sintered glass for quantitative definitions with pore size, as defined in this application above (max 20 microns). Water is dried from the collected filtrate using any traditional method and determine the mass of the remaining substances (which is dissolved or dispergirovannoyj fraction). You can calculate the percentage of solubility or dispersive ability of the pigment.

The preferred materials of bags are polymeric materials, preferably polymers formed into a film or sheet. The material of the bag may be, for example, obtained by casting, blow molding, extrusion or blown polymeric material, as known from the prior art.

Preferred polymers, copolymers or derivatives thereof suitable for use as the material of the bag described in WO 03/045812 (Procter & Gamble Company), WO 04/085586 (Procter & Gamble Company) and WO 07/130684 (Procter & Gamble Company).

Preferably, the level of polymer in the material of the bag, for example, PVA polymer is at least 60%. The polymer can have any average molecular weight, preferably from 1000 to 1000000, more preferably from 10,000 to 300,000, even more prepact the tion from 20000 to 150000.

Mixtures of polymers can also be used as a material of the bags. This can be useful for control of mechanical properties and/or properties of the dissolution of the chambers of the bag, depending on its application and the required needs. Acceptable mixture include, for example, a mixture in which one polymer has a higher solubility in water than the other polymer, and/or one polymer has a higher mechanical strength than the other polymer. Also acceptable is a mixture of polymers having different average molecular weight.

Natural, different film materials and/or films with different thickness can be applied upon receipt of the cameras in accordance with the present invention. A useful effect of selecting different films is that the resulting camera can show different characteristics solubility or release.

The most preferred materials of bags are PVA films known under the trade name Monosol M8630, as sells MonoSol LLC of Gary, Indiana, US, and PVA films of corresponding solubility characteristics and strain. Other films that are acceptable for use in this application include films known under the trade name RT film or series of films, which supplies Aicello, or VF-HP film that delivers Kurray.

The material of the bag in this application may also contain one or more additional ingredients. For example, it may be useful to add plasticizers, such as glycerine, ethylene glycol, diethylene glycol, propylene glycol, sorbitol and mixtures thereof. Other functional additives include detergents additives for delivery in the wash water, for example organic polymeric dispersing agents, etc.

Reasons deformability bags or camera bag containing a component which is liquid will preferably contain an air bubble having a volume of up to 50%, preferably 40%, more preferably up to 30%, more preferably up to 20%, more preferably up to 10% of the space on the volume specified camera.

The method of obtaining water-soluble bag

The method of obtaining water-soluble pouch may be implemented using any acceptable equipment and methods. Bags with one camera is obtained using methods of filling the vertical, but preferably, horizontal forms, traditionally known from the prior art.

The method of obtaining water-soluble pouch has been described in EP 1504994 (Procter & Gamble Company) and WO 02/40351 (Procter & Gamble Company). The method of obtaining multi-water-bag was described in the concurrently pending application 09161692.0 filed in June 2009 (Pocter & Gamble Company).

Secondary packaging

Multicam pouches in accordance with the present invention preferably additionally Packed in an outer packaging. The specified external packaging may be translucent or partially translucent container, for example, transparent or translucent package, carton, box or bottle. Packaging can be made of plastic or any other acceptable material, provided that the material is durable enough to protect the bags during transport. This type of packaging is also very useful because the user does not need to open the package to see how many bags left. Alternatively, the packaging may have aprovecharse the outer package, possibly with indicators or images representing visually distinct contents.

Method wash

Compact liquid detergent in accordance with the present invention is acceptable for applications in the purification by washing. Compact liquid detergent is acceptable conditions for hand or machine washed. When machine washing, compact liquid detergent may be delivered from the metering device, or can be added directly into the drum of the washing machine or in the view of the water-soluble pouches, either in the form of a compact liquid.

Examples

Below are examples of products-sacs in accordance with the present invention:

Composition:

Name of ingredientComposition, wt.%Composition, wt.%
Linear alkylbenzenesulfonate acid1614
C12-14alkylators 3-sulfate MEA salt1013
C12-14alkyl 7-ethoxylate915
C12-18fatty acid158
Sodium diethylenetriaminepentaacetate0,50,7
H-EDDS10,7
Na-EDDS-1,0
Enzymes2,32,3
Solvent 1514
Buffer (monoethanolamine)To pH 7.5To pH 7.5
Water1015
Various additives/minor additives100100
1H-EDDS: Ethylenediamine-N,N'-diantara acid

Performance:

Performance of chelating agents was measured in wine and tea. Wine stains and tea were applied to cotton and received from EMC (US). Spots and ballast load, consisting of 0.5 kg of t-shirts was added in MiniWasher representing moderate US conditions of washing. Wash water was established to 32.2°C+1°C and stiffness b g/gallon (1 mmol/l) and water for rinsing installed at 15,5°C+1°C. the Amount of water was 15 liters and the washing time was 12 minutes.

Spots and ballast was dried at the end of each cycle at a high speed and a large heating with cooling cycle. The results are then analyzed using image analysis, which is a way to count the number of spots that are removed. Spots were photographed before washing and after washing. Create images RASSC the intended number of index stains (SRI). SRI 100 means complete removal and SRI zero means no removal.

The image analysis wash (image analysis Merlin) measures remove stains on samples of technical spots. The system uses a video camera to obtain color images of the samples. The image of the sample receive before and after washing. The resulting image is then analyzed using computer software (Global R&D calculations). The software compares the dirty spot and mytoi spot and unwashed fabric and mytoy fabric and generates the five factors of quality, which describe the removal of stains. The data is then analyzed by the statistical method to detect statistically significant differences between the performance of the detergent.

Index stain removal uses the original fabric as a bench mark against which to measure the differences of colors unwashed and dirty spots. A higher value indicates better cleaning and removal of stains and so on the best cleanser. The standard deviation is 1.

Index stain removalIndex stain removal
The absence of a chelating agent 54,622,8
Chelating agentWineTea
Na-DTPA - 1 ppm55,227,6
Na-DTPA - 2 ppm55,829,0
Na-DTPA - 3 ppmof 56.427,1
Na-EDDS - 1 ppm58,328,2
Na-EDDS - 2 ppm59,029,3
Na-EDDS - 3 ppm56,826,1
Na-DTPA (0.5 ppm) Na-EDDS (0.5 ppm)57,128,7
Na-DTPA (1 ppm) Na-EDDS (1 ppm)of 58.932,4
Na-DTPA (1,5 ppm) Na-EDDS (1,5 ppm)59,933,9

Product stability:

Products (I-III) was obtained by connection of the Composition and With 3 different combinations of chelating agent. Product is you (75 g) was stored for 4 weeks at 4°C, 20°C and 35°C in a glass vessel (100 ml). The stability of the product is then evaluated visually. If rendered sediment or separation of the product on the phase stability was considered as unsatisfactory. Stability was considered as satisfactory in the absence of any signs of change in the retention period.

Name of ingredientComposition, wt.%
Linear alkylbenzenesulfonate acid16
C12-14alkylators 3 sulfate MEA salt10
With12-14alkyl 7-ethoxylate9
With12-18fatty acid15
Enzymes2,3
Solvent15
MonoethanolamineTo pH 7.5
Water10
Various additives/minor additives100
ProductChelating agentSatisfactory/unsatisfactory
INa-DTPA-0,7%Satisfactory
IINa-DTPA-1,4%Poor
IIINa-EDDS/Na-DTPA (0,7%/0,7%)Satisfactory

Stability analysis showed the presence of synergy between chelating agents DTPA and EDDS. Compact liquid washing composition containing 0.7% of Na-DTPA, is stable, however, it does not provide the desired cleaning efficiency. By increasing the number of Na-DTPA up to effective levels, the composition does not satisfy the stability requirements. The combination of 0.7% Na-EDDS and 0.7% Na-DTPA provides the desired cleaning efficiency and meets the stability requirements.

The dimensions and values described in this application should not be construed as strictly limited to the exact numerical values. Instead, unless otherwise specified, each such dimension is rednaznachen to indicate how the values, and a functionally equivalent range in which it is located. For example, the size described as "40 mm" is intended to mean "about 40 mm".

1. Compact liquid washing composition containing less than 25% water by weight of the composition and the mixture of chelating agents, the first chelating agent selected from the group consisting of sodium salt Ethylenediamine-N,N'-dinternal acid, Ethylenediamine-N,N'-dinternal acid, neutralized 2-aminoethanol, and mixtures thereof, and the second chelating agent is a sodium salt of diethylenetriaminepentaacetate.

2. Compact liquid washing composition according to claim 1, characterized in that the mixture of chelating agents contain from 1:10 molar ratio diethylenetriaminepentaacetate and Ethylenediamine-N,N'-dinternal acids or their salts to 10:1 molar ratio diethylenetriaminepentaacetate and Ethylenediamine-N,N-dinternal acid or their salts.

3. Compact liquid washing composition according to claim 1, characterized in that the liquid washing composition contains from 0.05% to 5% of the mixture of chelating agents by weight of the composition.

4. Compact liquid washing composition according to claim 1, characterized in that the liquid washing composition contains from 0.1% to 4% of a mixture of chelating agents by weight of the composition.

5. Compact liquid washing composition according to claim 1, the call is connected with the fact, that said liquid washing composition contains from 0.5% to 2% of the mixture of chelating agents by weight of the composition.

6. Compact liquid washing composition according to claim 1, characterized in that the compact liquid washing composition contains an agent which imparts opacity, and antioxidant.

7. Compact liquid washing composition according to claim 1, characterized in that it is encapsulated in a water soluble pouch.

8. Compact liquid washing composition according to claim 1, characterized in that the compact liquid washing composition is in the form of water-soluble pouch containing two or more cameras, while the second chamber contains a coloring agent and does not contain the agent, giving the opacity.



 

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