MX2008010349A - Fabric care compositions comprising formaldehyde scavengers - Google Patents

Abstract

Fabric care compositions comprising formaldehyde scavengers exhibit low levels of free formaldehyde.

Description

COMPOSITIONS FOR THE CARE OF FABRICS THAT COMPRISE FORMALDEHYDE ELIMINATORS FIELD OF THE INVENTION The present invention relates to compositions comprising formaldehyde scavengers.

BACKGROUND OF THE INVENTION The perfume microcapsules and the use of perfume microcapsules in the fabric care compositions is known. See, for example, U.S. Patent No. 2003/0125222 A1. However, some microcapsules contain formaldehyde or generate formaldehyde over time. It is known that the sheet material used to manufacture the sheet of the microcapsule can be responsible for the formation of free formaldehyde. For example, these sheet materials include melamine formaldehyde, urea formaldehyde, phenol formaldehyde, or other formaldehyde condensation polymers. However, formaldehyde-based resins such as melamine formaldehyde resins or urea formaldehyde resins are especially attractive by perfume encapsulation because of their wide availability and reasonable cost. However, these microcapsules can emit formaldehyde. There are several sources of this formaldehyde released, for example, excess unreacted formaldehyde, hydrolysis and products formed from the reaction of formaldehyde and urea or formaldehyde and melamine, as well as the decomposition of the resin by age, humidity, temperature, pH, etc. Formaldehyde is very volatile, has a very unpleasant odor that irritates the eyes and nasal passages and can increase other health problems. The formaldehyde has been classified as a carcinogenic agent for humans by the International Agency for Research on Cancer (International Agency for Research on Cancer) and as a probable carcinogenic agent for humans by the U.S. Environmental Protection Agency (US Environmental Protection Agency). It is important for the health of the body and for reasons of aesthetics not only to limit the concentration of formaldehyde in the environment during the production of formaldehyde based resins products but also to minimize the quantities of formaldehyde released by these products during the lifetime of these products. Therefore, there is a need to decrease the exposure of formaldehyde in products prepared from formaldehyde or that can generate formaldehyde during its use.

BRIEF DESCRIPTION OF THE INVENTION The present invention attempts to address this and other needs by the surprising discovery that the use of certain formaldehyde scavengers in fabric care compositions, particularly those comprising perfume microcapsules, can reduce the level of free formaldehyde in the composition. Therefore, an aspect of the invention provides a composition for the care of fabrics comprising a fabric softening active, a perfume microcapsule, and a formaldehyde scavenger. Methods are provided for using the fabric care compositions of the present invention to treat the fabric. Also, kits comprising the fabric care compositions are provided.

DETAILED DESCRIPTION OF THE INVENTION Formaldehyde scavenger An aspect of the invention provides a composition comprising a formaldehyde scavenger. The term "formaldehyde scavenger" is used herein in a general sense to include any compound that reduces the level of formaldehyde in a composition of the present invention, provided that the formaldehyde scavenger is safe for humans and does not include ammonia, ethylene urea, tryptophan, 5-hydroxytryptophan, hydroxylamine, hydroxylamine sulfate, barbituric acid. Ammonia is observed as an inadmissible formaldehyde scavenger, particularly under acidic conditions, because it reacts with formaldehyde to form hexamethylene tetramine, which is unstable under acidic conditions. Many compositions for the care of fabrics are acidic.

Ethylene urea, although it is an effective eliminator of the form Id eh ido, is not advisable because it is cataloged as a carcinogenic agent in European Registration R40. Tryptophan or 5-hydroxytryptophan is not advisable because of the potential health risks that have been associated with tryptophan since the FDA and the Center for Disease Control has established a link between a fatal blood disorder called eosinophilia-myalgia syndrome. and tryptophan. Although, tryptophan is found in many foods and research has not been established on whether this or an impurity introduced during its manufacture or distribution is the cause, an important warning remains strong, which limits the importation of L-tryptophan in the United States, except if its excluded use is intended as pharmaceutical products. Hydroxylamine is not advisable since chronic exposure in laboratory experiments have shown mutagenic effects. Hydroxylamine sulfate is not advisable since it is considered as a potential teratogen. Barbituric acid is an effective formaldehyde scavenger, however it is not advisable since its use is regulated as a drug in, for example, Canada. In one embodiment of the invention, the formaldehyde scavenger is one that is effective in removing formaldehyde at a lower pH, for example, from about pH 2 to about pH 6, alternatively, from about pH 3 to about pH 4.

In another embodiment of the invention, the formaldehyde scavenger, itself, is non-toxic (eg, a carcinogenic agent) to humans. In another embodiment, the formaldehyde scavenger is chosen from: sodium bisulfite, urea, cysteine, cysteamine, lysine, glycine, serine, carnosine, histidine, glutathione, 3,4-diaminobenzoic acid, allantoin, glycouril, anthranilic acid, methylanthranilate, methyl 4-aminobenzoate, ethyl acetoacetate, acetoacetamide, malonamide, ascorbic acid, 1,3-dihydroxyacetone dimer, biuret, oxamide, benzoguanamine, pyroglutamic acid, pyrogallol, methyl gallate, ethyl gallate, propyl gallate, triethanolamine, succinamide, thiabendazole, benzotriazole, triazole, indoline, sulphanilic acid, oxamide, sorbitol, glucose, cellulose, polyvinyl alcohol, poly (vinylamine), hexanediol, ethylenediamine -?,? '- bisacetoacetamide, N- (2-ethylhexyl) acetoacetamide, N- (3-phenylpropyl) acetoacetamide, lilial, helional, melonal, triplal, 5,5-dimethyl-1,3-cyclohexanedione, 2,4-dimethyl-3-cyclohexenecarboxaldehyde, 2,2-dimethyl-1,3-dioxan-4 , 6-dione, 2-pentanone, dibutyl amine, triethylenetetramine, benzylamine, hydroxycitronellol, cyclohexanone, 2-butanone, pentane dione, dehydroacetic acid, chitosan or a mixture of these. In another embodiment, the formaldehyde scavenger is chosen from: sodium bisulfite, urea, cysteine, lysine, glycine, serine, 3,4-diaminobenzoic acid, allantoin, glyceryl, ethyl acetoacetate, acetoacetamide, malonamide, ascorbic acid, dimer 1,3-dihydroxyacetone, biuret, oxamide, benzoguanamine, pyroglutamic acid, succinamide, triazole, sulphanilic acid, oxamide, glucose, cellulose, polyvinyl alcohol, poly (vinylamine), hexanediol, ethylenediamine-N.N'-bisacetoacetamide, N- (2-ethylhexyl) acetoacetamide, N- (3-phenylpropyl) acetoacetamide, lylial, helional, melonal, triplal, 5,5-d, methyl-1,3-cyclohexanedione, 2, 4-dimethyl-3-cyclohexenecarboxaldehyde, 2,2-dimethyl-1,3-dioxan-4,6-dione, dibutyl amine, hydroxycitronelol, dehydroacetic acid, chitosan, or a mixture thereof. In another embodiment, the formaldehyde scavenger is chosen from sodium bisulfite, ethyl acetoacetate, acetoacetamide, ethylenediamine -?,? '- bisacetoacetamide, ascorbic acid, 2,2-dimethyl-1,3-dioxan-4, 6-diona, helional, triplal, lilial or a mixture of these. These formaldehyde scavengers can be obtained from Sigma / Aldrich / Fluka. In another embodiment, sodium bisulfite is an effective formaldehyde scavenger and can reduce residual formaldehyde in the fabric care composition when sodium bisulfite is used at molar concentrations in excess of about 1: 1 to about 5: 1., alternatively, from about 2: 1 to about 4: 1, alternatively, from about 2: 1 to about 5: 2, alternatively, from about 5: 2 to about 5: 1, relative to the amount of free formaldehyde in the perfume microcapsule composition. The phrase "perfume microcapsule composition" refers to a composition comprising a perfume microcapsule. In turn, the perfume microcapsule comprises a perfume core, which in turn comprises a perfume and optionally a diluent. The sheet of a perfume microcapsule encapsulates the perfume core. The percentage by weight of the perfume in the core of a perfume microcapsule ("encapsulated perfume") can be calculated as a percentage by weight of a fabric care composition of the present invention by the following equation (1): weight of the encapsulated perfume of a fabric care composition logo CNRS logo INIST. { [total mass (g) of a perfume microcapsule composition)] x [weight percentage of the solid components of the perfume microcapsule composition (ie the perfume core and the components of the microcapsule sheet), with respect to the total weight of the perfume microcapsule composition] x [weight percentage of the perfume in the perfume core, with respect to the total weight of the perfume microcapsule] x [percentage by weight of the diluent in the perfume core, with respect to the weight of the perfume core (ie, perfume and perfume core diluent)%)]} / [mass (g) of the composition for the care of fabrics)] (eq 1). In one embodiment, the core of the perfume does not comprise a diluent or is practically free of a diluent. In one embodiment, the amount of perfume encapsulated in the fabric care composition is from about 0.1% to about 2%, more preferably from about 0.15% to about 0.75% by weight of the fabric care composition. The term "free formaldehyde" refers to the molecular forms in aqueous solution capable of rapid equilibration with the native molecule, ie, H2CO, in the empty space above the solution. This includes the aqueous native molecule; its hydrated form (methylene glycol; (HOCH2OH)); and its polymerized hydrated form (HO (CH2O) nH). These are described in detail in a monograph by J.F. Walker (ACS Formaldehyde Monograph Series No. 159 3rd Edition 1964 Reinhold Publishing Corp.). The moles of free formaldehyde in the perfume microcapsule composition is determined in the absence of the formaldehyde scavenger, and then the molar excess of the scavenger is calculated and added to the perfume microcapsule composition. In one embodiment, a fabric softening active, then, may be added to the resulting fabric care composition, ie, the perfume microcapsule composition containing the formaldehyde scavenger. Any prior accepted industry method can be used to determine the amount or moles of free formaldehyde (in the perfume microcapsule composition or in the fabric care composition). Other methods may include EPA EPA method 8315A, Determination of carbonyl compounds by high-performance liquid chromatography, and Determination of high-performance liquid chromatography of free formaldehyde in Cosmetics Preserved with Dowicil 200, Chromatography Journal, 502 (1990), pages 193-200. An example includes the following: formaldehyde is analyzed by means of derivatization at room temperature with 2,4 dinitrophenyl hydrazine (DNPH) before chromatographic separation using Reverse Phase Chromatography with UV / Visible spectrophotometric detection (length of wave adjusted to 365 nm). The calibration acts through "external standard calibration" with reference to the formaldehyde solution prepared from the commercially distributed 36-37% formaldehyde solution. The activity of the standard formaldehyde material can be determined by redox titration. In yet another embodiment, the formaldehyde scavenger reduces free formaldehyde, in the fabric care composition, in some embodiments to less than 50 parts per million (ppm), alternatively, less than about 25 ppm, alternatively, less than about 10 ppm, alternatively, less than, even, 5 ppm, when the formaldehyde scavenger is used in excess molar concentrations of a β-ketoester or a β-ketoamide of from about 15: 1 to about 2.5: 1, alternatively about 10 1 to about 2.5: 1, alternatively from about 5: 1 to about 2.5: 1 in relation to the amount of free formaldehyde in the perfume microcapsule composition. In one embodiment, the ketoester or ketoamide is chosen from a β-ketoester or a β-ketoamide, respectively. Non-limiting examples include acetoacetamide or ethyl acetoacetate (Aldrich). Another example includes sizing agents of 16-diketone (the diketone may have open rings with any alcohol to obtain a ketoester) such as those of Hercules. In one embodiment, the formaldehyde scavenger reduces free formaldehyde, in the fabric care composition, in some embodiments to less than 50 parts per million (ppm), alternatively, less than 20 ppm, alternatively, less than 10 ppm, when the formaldehyde scavenger is used at molar concentrations in excess of ethyl acetoacetate from about 10: 1 to about 3: 1, alternatively, from about 5: 1 to about 3: 1, relative to the amount of free formaldehyde in the composition of perfume microcapsule. Even in another embodiment, the formaldehyde scavenger is selected from sodium bisulfite, ethyl acetoacetate, acetoacetamide, ethylenediamine-N, N'-bisacetoacetamide, ascorbic acid, 2,2-dimethyl-1,3-dioxan-4,6 -Diona, helional, tripla! , lilial or combinations thereof may be used to achieve a lower level of free formaldehyde levels in the compositions of the invention. In another embodiment, the amount of scavenger in the fabric care composition comprises from about 0.01% to about 0.8%, alternatively from about 0.03% to about 0.4%, alternately from about 0.065% to about 0.25%, by weight of the fabric care composition. Perfume Microcapsule One aspect of the invention provides a fabric care composition comprising a perfume microcapsule. The term "perfume microcapsule" is used herein in a general sense to include a perfume core that is encapsulated by a sheet. In turn, the perfume core comprises a perfume and optionally a diluent. The term "perfume" is used herein to refer to any odoriferous material or any material that acts to counteract malodor. Non-limiting examples of a perfume are described in U.S. Pat. no. 2003-0104969 A1, paragraphs 46 - 81. The term "diluent" refers to an inert material used to dilute the perfume that is encapsulated. Examples of diluents include isopropyl myristate, propylene glycol, poly (ethylene glycol), or mixtures thereof. The perfume microcapsules may include those described in the following references: US Pat. 2003-2154 7 A1; 2003-216488 A1; 2003-158344 A1; 2003-165692 A1; 2004-071742 A1; 2004-071746 A1; 2004-072719 A1; 2004-072720 A1; European Patent EP 1393706 A1; US patents num. 2003-203829 A1; 2003-195133 A1; 2004-087477 A1; 2004-0106536 A1; 6645479; 6200949; 4882220; 4917920; 4514461; RE 32713; 4234627. As a purpose of the present invention, and unless otherwise indicated, the term "perfume nanocapsule" is within the scope of the term "perfume microcapsule". The sheet material surrounding the perfume core to form the microcapsule can be any polymeric material that is impermeable or practically impermeable to the materials in the core (generally a liquid core) and the materials that may be in contact with the outer surface of the sheet. In one embodiment, the material making the sheet of the microcapsule comprises formaldehyde. Non-limiting examples of suitable materials for making the microcapsule sheet include melamine formaldehyde, urea formaldehyde, phenol formaldehyde, or other formaldehyde condensation polymers. Other encapsulation techniques are described in MICROENCAPSULACIÓN: Methods and Industrial Applications, Edited by Benita and Simón (Marcel Dekker, Inc., 1996). Formaldehyde-based resins such as melamine formaldehyde or urea formaldehyde resins are especially attractive for perfume encapsulation due to their wide availability and reasonable cost. A preferred method for forming sheet capsules useful herein is polycondensation, which can be used to produce encapsulated aminoplasts. Aminoplast resins are the products of the reaction of one or more amines with one or more aldehydes, usually formaldehyde. Non-limiting examples of amines are melamine and its derivatives, urea, thiourea benzoguanamine, acetoguanamine and combinations of amines. Suitable crosslinking agents (eg, toluene diisocyanate, divinylbenzene, butanediol diacrylate, etc.) and secondary wall polymers can also be used as appropriate, as described in the industry, for example, anhydrides and their derivatives, particularly polymers and copolymers of maleic anhydride as set forth in U.S. Pat. no. 2004-0087477 A1. The microcapsules having the liquid nuclei and polymer sheet walls as described above can be prepared by any conventional process that produces capsules of the required size, friability and water insolubility. Generally, such methods as coacervation and interfacial polymerization can be employed in known manner to produce microcapsules of the desired characteristics. Such methods are described in U.S. Pat. num. 3,870,542; 3,415,758; and 3,041, 288 of Ida et al. In one embodiment, the microcapsules may vary in size (ie, their maximum diameter is approximately 1 miera and approximately 75 microns, preferably from approximately 5 microns to approximately 30 microns). In addition, the capsules used in the present invention, generally, have an average sheet thickness ranging from about 0.05 microns to 10 microns, preferably from about 0.05 microns to about 1 micron. Generally, but not limited to, capsules having a perfume charge of about 50% to about 95% by weight of the capsule can be employed. The composition of the perfume that is encapsulated may be comprised of 100% perfume components, or alternatively, may include non-volatile materials such as diluents. The diluent may be present from about 0% to about 50% of the perfume formulation. The diluent can be selected from isopropyl myristate, polyethylene glycol, propanediol, or combinations thereof. In general terms, the fabric care compositions of the invention can use from about 0.1% to about 2% by weight of the fabric care composition of the encapsulated perfume, alternatively, from about 0.15% to about 0.75%. In addition to the encapsulated perfume, the net essential oil, too, can be added to the fabric care composition from about 0% to about 1.5% by weight of the composition for the care of fabrics containing the fabric softening active. In one embodiment, the fabric care composition of the present invention comprises less than 500 parts per million ("ppm") of free formaldehyde, preferably less than 200 ppm, more preferably less than 50 ppm, more preferably , less than 10 ppm and with the highest non-detectable preference, by specific analytical methods for formaldehyde. Active fabric softener Another aspect of the invention is provided for a composition that is a fabric care composition comprising a fabric softening active ("FSA"). An FSA is used in the present in a general sense to include any asset that is suitable for softening a fabric. In one embodiment of the invention, FSA is a quaternary ammonium compound suitable for softening fabrics in a rinse step. In one embodiment, the FSA is formed by the reaction product of a fatty acid and an aminoalcohol obtaining mixtures of mono, di and, in one mode, triester. In another embodiment, the FSA comprises one or more quaternary ammonium softening compounds such as, but not limited to, a monoalkyl quaternary ammonium compound, dialkyl quaternary ammonium compound, a quaternary diamido compound, ammonium quaternary ammonium compound, quaternary ammonium diester compound or a combination of these. In one aspect of the invention, the FSA comprises a composition of quaternary ammonium diester compound (hereinafter, DQA, for its acronym in English). In certain embodiments of the present invention, the compositions of DQA compounds also comprise a description of the FSA diamido and FSA with combined linkages of amido and ester and also the diester linkages mentioned above, all mentioned herein as DQA. A first type of DQA ("DQA (1)") that may be suitable as an FSA in the present invention includes a compound comprising the formula: . { R 4 -m - N + - [(CH 2) n - Y - R 1] m} X- wherein each R substituent is hydrogen, a short-chain hydroxyalkyl group of CrC6, preferably hydroxyalkyl or C1-C3 alkyl group, for example, methyl (more preferred), ethyl, propyl, hydroxyethyl, hydroxypropyl and the like, poly (C2-3 alkoxy), preferably, a polyethoxy group, benzyl, or mixtures thereof; each m is 2 or 3; each n is from 1 to about 4, preferably, 2; each Y is -O- (O) C-, -C (O) -O-, -NR-C (O) -, or -C (O) -NR- and it is acceptable for each Y to be the same or different; the sum of carbons in each R1, plus one when Y is -O- (O) C- or -NR-C (O) -, is C12-C22, preferably, C14-C2o, with each R1 being a hydrocarbyl or substituted hydrocarbyl group; it is acceptable that R1 is unsaturated or saturated and branched or linear and, preferably, linear; it is acceptable that each R1 is the same or different and, preferably, the same; and X "can be any anion compatible with the softener, preferably, chloride, bromide, methyl sulfate, ethyl sulfate, sulfate, phosphate, and nitrate, more preferably, methyl sulfate chloride, Preferred DQA compounds are, General, made by reacting alkanolamines such as MDEA (methyldiethanolamine) and TEA (triethanolamine) with fatty acids Some materials that usually result from such reactions include N, N-di (acyl-oxyethyl) -N chloride, N-dimethylammonium or methyl sulfate of N, N-di (acyl-oxyethyl) -N, N-methylhydroxyethylammonium where the acyl group is derived from animal, unsaturated, and polyunsaturated fats, fatty acids, for example, tallow , hardened tallow, oleic acid, fatty or partially hydrogenated acids, vegetable oil derivatives or partially hydrogenated vegetable oils, such as, canola oil, safflower oil, peanut oil, sunflower oil, corn oil, soy oil ya, tallow oil, rice fiber oil, palm oil, etc. Non-limiting examples of suitable fatty acids are listed in U.S. Pat. no. 5,759,990 in column 4, lines 45 to 66. In one modality the FSA includes other assets in addition to DQA (1) or DQA. Even in another embodiment, the FSA comprises only DQA (1) or DQA and is free or virtually free of any other quaternary ammonium compound or other active ingredients. Even in another embodiment, the FSA comprises the amine precursor that is used to produce DQA. In another aspect of the invention, the FSA comprises a compound, identified as DTDMAC comprising the formula: [R4-m - N (+) - R1 m] A- where each m is 2 or 3, each R1 is a C6-C22 > preferably, C-i4-C2o > but not more than one is less than about C- | 2 and the other is, then, at least about 16, hydrocarbyl or substituted hydrocarbyl substituent, preferably alkyl or alkenyl (unsaturated alkyl, including polyunsaturated alkyl, also, referred to as some sometimes "alkylene") of Ci0-C2o, most preferably alkyl or alkenyl of Ci2-Ci8, branched or unbranched. In one embodiment, each R is H or a short chain of Ci-C6, preferably of C1-C3 alkyl or hydroxyalkyl group, for example, methyl (more preferred), ethyl, propyl, hydroxyethyl, and the like, benzyl, or ( R 2 O) 2-4 H wherein each R 2 is an alkylene group of C 1-6 and A "is an anion compatible with the softener, preferably, chloride, bromide, methyl sulfate, ethyl sulfate, sulfate, phosphate, or nitrate; More preferably, methyl chloride or sulfate Examples of these FSAs include dialkyldimethylammonium salts and dialkylenedimethylammonium salts such as ditallowdimethylammoniomethyl chloride and ditallowdimethylammoniomethyl sulfate Commercially distributed examples of dialkyl (ene) dimethylammonium salts which are used in The present invention is dihydrogenated tallow dimethylammonium chloride and ammonium disodibodimethyl chloride distributed by Degussa under the trade names of Adogen® 442 and Adogen® 470 respectively. as well as DTDMAC. Even in another embodiment, the FSA comprises only DTDMAC compounds and is free or substantially free of any other quaternary ammonium compound or other active compounds. In one embodiment, the FSA comprises an FSA described in U.S. Pat. no. 2004/0204337 A1, published on October 14, 2004 by Corona et al., Of paragraphs 30-79. In another embodiment, the FSA is described in the patent of the USA no. 2004/0229769 A1, published November 18, 2005, by Smith et al., In paragraphs 26-31; or the U.S. patent no. 6,494,920, in column 1, line 51 et seq., Which detail an esterquat or ester salt of quaternized triethanolamine fatty acid. In one embodiment, the FSA is chosen from at least one of the following: ditallowyloxyethyl dimethylammonium chloride, dihydroxy dimethyl ammonium dimethylammonium chloride, dimethylammonium dichloride chloride, dimethylammonium sebodihydrochloride, methyl diphosloxyloxyethyl methylhydroxyethylammonium chloride, methylhydroxyethylammonium seboxyloxyethyl chloride dihydrogenated or combinations of these. Typical minimum levels of FSA incorporation in the present fabric care compositions are, at least, about 1%, alternatively, at least, about 2%, alternatively, at least, about 3%, alternatively, at least about 5%, alternatively, at least about 10% and, alternatively, at least about 12%, by weight of the fabric care composition. The fabric care composition may, generally, comprise maximum levels of FSA of about less than about 90%, alternatively, less than about 40%, alternatively, less than about 30%, alternatively, less than about 20%, by weight of the composition. In one embodiment of the invention, the FSA comprises a cationic starch. The FSA may comprise cationic starch and a quaternary ammonium compound. Cationic starch, for use in fabric care compositions, is described in U.S. Pat. No. 04-04002033 A1, paragraphs 16-29. The fabric care compositions of the present invention may, in addition, comprise cationic starch (in addition to any other FSA) at a level from about 0.01% to about 4%, alternatively from 0.1% to about 3%, alternately from about 0.2% to about 2.0%, alternately from about 0.3% to about 2.5%, by weight of the fabric care composition. Cationic starches suitable for use in the present compositions are commercially available from Cerestar under the tradename C * BOND® and from National Starch and Chemical Company under the tradename CATO®. Additives In another embodiment, the fabric care composition of the present invention can be one or more of any of the additives. Even in another embodiment, the fabric care composition of the present invention may be free or substantially free of any of the additives. The term "additives" may include: a perfume, dispersing agent, stabilizer, agent for controlling pH, agent for controlling metal ions, dye, brightener, dye, agent for controlling odors, perfume precursors, cyclodextrin, solvent, polymer for the detachment of stains, preservative, antimicrobial agent, chlorine scrubber, enzyme, anti-shrinking agent, agent to firm fabrics, stain agent, antioxidant, anti-corrosion agent, viscosity-increasing agent, agent to control the shape and fall of fabrics, agent for softness, agent to control static, agent to control the formation of wrinkles, agent for hygiene, disinfecting agent, agent to control germs, agent to control black mold, agent to control white mold , antiviral agent, antimicrobial agent, drying agent, spotting agent, stain release agent, for the control of odors, agent to renew fabrics, agent to control the odor of chlorine bleach, dye fixative, dye transfer inhibitor, agent to maintain color, agent to renew or restore color, agent that prevents discoloration, intensifier of whiteness, anti-abrasion agent, agent for wear resistance, agent for integrity of fabrics, anti-wear agent, rinse aid, agent for protection from UV rays, inhibitor of discoloration solar, insect repellent, antiallergenic agent, enzyme, flame retardant, waterproofing agent, fabric conditioning agent, water conditioning agent, agent that combats shrinkage, agent that combats stretching, and combinations of these. In one embodiment, the composition comprises an additive from about 0.001% to about 2% by weight of the composition. In one embodiment, the pH of the fabric care composition may comprise a pH of from about 2 to about 6, alternatively from about 2 to about 4.5, alternatively from about 2.5 to about 4, and alternatively from about 3 to about 4. In one embodiment, the fabric care composition is a fabric softener composition, alternatively a liquid fabric softener composition, alternatively a fabric softener composition with additional rinse. In another embodiment, a manual fabric treatment method comprising the step of dosing a composition of the present invention into a first, preferably single, laundry container for manual rinsing. In another embodiment, an article is provided wherein the article comprises a unit dose of a fabric care composition of the present invention wherein a water soluble film (e.g., polyvinyl alcohol film) encapsulates the composition for the care of fabrics. The article can be used to treat the fabric when administered during the wash cycle, alternatively the rinse cycle, of an automatic washing machine. Non-limiting examples of unit dose articles are described in U.S. Patent No. 2005/0202990 A1. In one embodiment, the article is a unit dose soluble in water, suitable for dosing in an automatic washing machine, comprising a fabric care composition comprising a perfume microcapsule and a formaldehyde scavenger. The fabric care composition may additionally comprise a surfactant detergent or a fabric softening active; or alternatively the composition may comprise less than 5%, by weight of the composition, of a surfactant detergent or a fabric softener. In one embodiment, the composition comprises less than about 3%, alternatively less than about 1%, alternatively about 0%, by weight of the composition, each surfactant detergent or a fabric softening active. Other Compositions Other aspects of the invention include the use of formaldehyde scavengers of the present invention in laundry detergent compositions (e.g., TIDE), harsh surface cleaners (e.g., MR CLEAN), washer liquids. automatic dishes (eg, CASCADE), dishwashing liquids (eg, DAWN), and floor cleaners (eg, SWIFFER). Non-limiting examples of cleaning compositions may include those described in U.S. Pat. num. 4.51 5.705; 4,537,706; 4,537,707; 4,550,862; 4,561, 998; 4,597,898; 4,968,451; 5,565,145; 5,929,022; 6,294,514 and 6,376,445. Methods An aspect of the invention is provided for a fabric treatment method comprising the step of dosing a fabric care composition / article / case of the present invention to an automatic washing machine or to a laundry container for manual washing. Cases One aspect of the invention provides a kit comprising a fabric care composition of the present invention. In one embodiment, the kit comprises instructions comprising instructions for its use. Method for Making Fabric Care Compositions One aspect of the invention is provided for a method for making a fabric care composition, comprising the steps of: (a) adding a formaldehyde scavenger to the composition of the microcapsule of perfume to produce a formaldehyde-removing perfume microcapsule composition; (b) optionally adding, simultaneously or subsequently to step (a), the formaldehyde-removing perfume microcapsule composition to a fabric softening active to produce a fabric care composition; and (c) optionally heating the formaldehyde scavenging perfume microcapsule composition or fabric care composition of step (a) or step (b), respectively. In one embodiment, the heating step of step (c) comprises heating the composition to a temperature of about 32 ° C at a temperature of about 70 ° C. In another embodiment, the perfume microcapsule composition is free or substantially free of a fabric softening active. Another aspect of the invention is provided for a method of making a fabric care composition, comprising the steps of: (a) a formaldehyde scavenger is added to a perfume microcapsule composition, wherein the composition comprises the free formaldehyde, to produce a formaldehyde-removing perfume microcapsule composition, wherein the composition comprises a reaction product of the formaldehyde scavenger which reacts with the free formaldehyde; (b) the formaldehyde-removing perfume microcapsule composition is purified from step (a) to reduce the amount of the reaction product to produce a purified formaldehyde scavenging perfume microcapsule composition; (c) optionally, preferably, subsequent to step (b), a fabric softening active is added to the purified formaldehyde scavenging perfume microcapsule composition to produce a fabric care composition; (d) optionally heating the formaldehyde scavenging perfume microcapsule composition or fabric care composition of step (a) or step (c), respectively. (e) optionally, a formaldehyde scavenger is added to a microcapsule pulp, which is produced by dispersing dry microcapsules in water again. Preferably, the aqueous microcapsule pulp is atomized using a parallel dryer (air inlet temperature 180 ° C, 95 X air outlet temperature, centrifugal atomization) to produce a dry, free flowing powder. In one embodiment, the heating step of step (d) comprises heating the composition to a temperature of about 32 X at a temperature of about 70 X. In another embodiment, the perfume microcapsule composition is free or substantially free of a active fabric softener. In one embodiment, the "purification" step comprises washing the formaldehyde-removing perfume microcapsule composition from about 1 to about 10 times, isolating the perfume microcapsules from the aqueous solution by centrifuging or filtering, adding water until the original volume is achieve, by mixing the perfume microcapsule composition, and isolating the perfume microcapsules. The aqueous solutions of the repetitive wash steps are discarded. The purification, too, may comprise the steps, preferably after washing, which include filtering, absorbing, or centrifuging the reaction product. In one embodiment, the formaldehyde scavenger can be dissolved in an aqueous composition. In another embodiment, the formaldehyde scavenger may be attached to an insoluble material such as a membrane filter, a polymeric film, or an insoluble resin. In another embodiment, the free formaldehyde can also be reduced by spraying with inert gas, spray drying, or distillation of free formaldehyde under pressure, to remove residual formaldehyde from a composition, preferably a perfume microcapsule composition. Oxidation of formaldehyde to formic acid can also be done using an oxidant, including but not limited to, hydrogen peroxide.

The following are non-limiting examples of compositions for fabric care according to the present invention. a N, N-di (tallowoyloxyethyl) -N, N-dimethyl ammonium chloride. b Methyl bis (tallowamidoethyl) 2-hydroxyethyl ammonium methylsulfate. c Product of the reaction of fatty acid with methyldiethanolamine in a molar ratio of 1.5: 1, quaternized with methyl chloride, which produces a 1: 1 molar mixture of N, N-bis (stearoyl-oxy-ethyl)?, ? dimethyl ammonium chloride and N- (stearoyl-oxy-ethyl) N, -hydroxyethyl N, N dimethylammonium chloride. d Cationic corn starch with high amylose content, distributed by National Starch under the trade name CATO®. e The formaldehyde scavenger is acetoacetamide, distributed by Aldrich. Copolymer of ethylene oxide and terephthalate with the formula described in U.S. Pat. no. 5,574,179, column 15, lines 1 to 5, where each X is methyl, each n has a value of 40, u has a value of 4, each R1 is, practically, portions of 1, 4-phenylene, each R2 is, practically, 1, 2-propylene, ethylene, or mixtures thereof. 9 Wacker SE39 n Diethylenetriaminepentaacetic acid. 'KATHON® CG, distributed by Rohm and Haas Co. "PPM" means "parts per million," j Gluteraldehyde k Silicone antifoam agent, distributed by Dow Corning Corp. under the tradename DC2310.

'Hydrophobically modified ethoxylated urethane, distributed by Rohm and Haas under the trade name Aculan 44. a N, N-di (tallowoyloxyethyl) -N, N-dimethyl ammonium chloride. b Methyl bis (tallowamidoethyl) 2-hydroxyethyl ammonium methylsulfate. c Product of the reaction of fatty acid with methyldiethanolamine in a molar ratio of 1.5: 1, quaternized with methyl chloride, which produces a 1: 1 molar mixture of N, N-bis (stearoyl-oxy-ethyl)?, ? dimethyl ammonium chloride and N- (stearoyl-oxy-ethyl) N, -hydroxyethyl N, N dimethylammonium chloride. d Cationic corn starch with high amylose content, distributed by National Starch under the trade name CATO®. e The formaldehyde scavenger is acetoacetamide, distributed by Aldrich. f Ethylene oxide-terephthalate copolymer with the formula described in U.S. Pat. no. 5,574,179, column 15, lines 1 to 5, where each X is methyl, each n has a value of 40, u has a value of 4, each R1 is, practically, 1, 4-phenylene portions, each R2 is practically , 1, 2-propylene, ethylene, or mixtures thereof. 9 Wacker SE39 h Diethylenetriaminepentaacetic acid. 1 KATHON® CG, distributed by Rohm and Haas Co. "PPM" means "parts per million", i Gluteraldehyde ^ Silicone antifoam agent, distributed by Dow Corning Corp. under the tradename of DC2310. 'Hydrophobically modified ethoxylated urethane, distributed by Rohm and Haas under the trade name Aculan 44.

It should be understood that any maximum numerical limit given in this specification includes any lower numerical limit, as if the lower numerical limits had been explicitly annotated herein. All minimum numerical limits cited in this specification shall include all major numerical limits, as if such numerical major limits had been explicitly quoted herein. All numerical ranges cited in this specification shall include all minor intervals that fall within the larger numerical ranges, as if all minor numerical ranges had been explicitly quoted herein. All parts, relationships and percentages herein, in the specification, examples and claims are expressed by weight, and all numerical limitations are used to the normal degree of accuracy permitted by the industry, unless otherwise specified. . All documents cited in the detailed description of the invention are, in their relevant part, incorporated herein by reference. The mention of any document should not be construed as an admission that it corresponds to a preceding industry with respect to the present invention. Although particular embodiments of the present invention have been illustrated and describedIt will be evident to those skilled in the industry that various changes and modifications can be made without departing from the spirit and scope of the invention. It has been intended, therefore, to cover all the changes and modifications in the appended claims. within the scope of the invention.

Claims (9)

NOVELTY OF THE INVENTION CLAIMS

1 . A fabric care composition comprising a fabric softening active and a formaldehyde scavenger, which provides the formaldehyde scavenger, does not comprise ammonia, ethylene urea, tryptophan, 5-hydroxytryptophan, hydroxylamine, hydroxylamine sulfate, or barbituric acid.

2. - The composition for the care of fabrics according to claim 1, further characterized in that the composition comprises a perfume microcapsule, and wherein the perfume microcapsule comprises a sheet and wherein the sheet comprises a condensation polymer with formaldehyde .

3. The fabric care composition according to claim 1 or 2, further characterized in that the condensation polymer with formaldehyde is chosen from melamine formaldehyde, urea formaldehyde, phenol formaldehyde, or mixtures thereof, and wherein the pH of the composition comprises from about 2 to about 6.

4. The fabric care composition according to claim 1, 2 or 3, further characterized in that the composition comprises from about 0.03% to about 0.4% by weight of the composition of the formaldehyde scavenger, and wherein the composition comprising from about 0.15% to about 0.75% by weight of the composition is encapsulated perfume.

5. - The fabric care composition according to claims 1 to 3, or 4, further characterized in that the composition comprises from about 5% to about 16% by weight of the composition, of the fabric softening active, and in where, the active fabric softener is a quaternary ammonium compound.

6. - The composition for fabric care according to claims 1 to 4, or 5, further characterized in that the formaldehyde scavenger is chosen from sodium bisulfite, urea, cysteine, cysteamine, lysine, glycine, serine, carnosine, histidine, glutathione, 3,4-diaminobenzoic acid, allantoin, glycouril, anthranilic acid, methylanthranilate, methyl 4-aminobenzoate, ethyl acetoacetate, acetoacetamide, malonamide, ascorbic acid, 1,3-dihydroxyacetone dimer, biuret, oxamide, benzoguanamine, pyroglutamic acid, pyrogallol, methyl gallate, ethyl gallate, propyl gallate, triethanolamine, succinamide, thiabendazole, benzotriazole, triazole, indoline, sulphanilic acid, oxamide, sorbitol, glucose, cellulose, polyvinyl alcohol, poly (vinylamine), hexanediol, Ethylenediamine-N, N'-bisacetoacetamide, N- (2-ethylhexyl) acetoacetamide, N- (3-phenylpropyl) acetoacetamide, lilial, helional, melonal, triplal, 5,5-dimethyl-1,3-cyclohexanedione, 2,4 -dimethyl-3-cyclohexenocarb xaldehyde, 2,2-dimethyl-1,3-dioxan-4,6-dione, 2-pentanone, dibutyl amine, triethylenenetetramine, benzylamine, hydroxycyanylphenol, cyclohexanone, 2-butanone, pentane dione, dehydroacetic acid, chitosan, or a mixture of these.

7. - The fabric care composition according to claims 1 to 5, or 6, further characterized in that the formaldehyde scavenger is chosen from sodium bisulfite, ethyl acetoacetate, acetoacetamide, ethylenediamine-N, N'-bisacetoacetamide, ascorbic acid, 2,2-dimethyl-1,3-dioxan-4,6-dione, helional, triplal, lilial or a mixture of these.

8. - The composition for the care of fabrics according to claims 1 to 4, or 5, further characterized in that the formaldehyde scavenger comprises a β-ketoester or a β-ketoamide; and wherein the composition comprises less than about 100 ppm of free formaldehyde.

9. - The composition for fabric care according to claims 1 to 7, or 8, further characterized in that the formaldehyde scavenger is chosen from acetoacetamide or ethyl acetoacetate or combinations thereof; and where 10.- A method for treating a fabric; comprising the step of dosing a composition according to claims 1 to 8, or 9 in an automatic washing machine.