BR112014013807B1 - TISSUE CONDITIONING COMPOSITION AND TISSUE TREATMENT PROCESS - Google Patents

Abstract

composition of tissue conditioning and process for the treatment of tissue. a tissue conditioning composition, comprising: (i) an encapsulated volatile benefiting agent; (ii) an encapsulated phase change agent, said phase change agent having a phase change temperature of 24 to 39 ° C; and (iii) at least one softening agent selected from a cationic softening agent, a non-ionic softening agent and mixtures thereof; and (iv) a non-encapsulated volatile beneficiating agent.

Description

Field of the Invention

[0001] The present invention relates to tissue conditioning compositions comprising volatile benefit agent in encapsulated and non-encapsulated forms, encapsulated phase change material and active non-ionic or cationic softener.

Background of the Invention

[0002] Fragrances are valuable and ubiquitous beneficial agents used in household and personal care applications. The use of perfumes in washing signals to the consumer that the cleaning process has reached an acceptable level.

[0003] Encapsulated perfume technologies are known for use in laundry products. These technologies provide greater fragrance release than conventional perfume-free oil, overcoming the problem of perfume loss during the drying process, protecting the perfume in the capsule. The encapsulation also ensures that perfume is released at the ideal time to allow the provision of a noticeable benefit to the user of the washed suits. Examples of the encapsulated mode of action include: sensitive shearing action, where the core of the perfume is released in response to the mechanical rupture of the encapsulated and diffusion action, in which, perfume is released by diffusion through the outer wall of the encapsulated. Some encapsulated are capable of both release mechanisms. One type of capsule that has been used in laundry compositions has a melamine-formaldehyde peel and a perfume core. The release of perfume from the melamine-formaldehyde capsules is based on friction, the benefit becomes apparent after a friction process is applied to the treated tissue. This benefit is provided by an increase in the intensity of the perfume during use. WO99 / 43777 relates to concentrated fabric conditioning compositions comprising fabric softener compounds mixed with oil. W020081058833 discloses a fabric softening composition comprising a fabric softening compound and a material with a thermal phase transition temperature in the range of 26 to 39 ° C encapsulated in a polymer capsule to provide encapsulated particles with a particle size in the range from 10 nm to 1000μm. WO2009 / 150017 discloses a process for preparing a composition comprising a fabric softener active, an encapsulated perfume and an unconfined perfume. The process comprises the step of dispersing the perfume encapsulated in water before adding the active softener to the water. WO 2010/012590 discloses fabric softening compositions comprising a perfume encapsulated in a capsule wall having weak acid groups present on the surface of the capsule, a fabric softener active and a stabilizing active, which is a cationic quaternary ammonium compound to a water-soluble non-ester or a non-ionic surfactant and salt.

[0004] EP 0371535 A2 describes aqueous liquid tissue treatment compositions comprising water-insoluble cationic tissue conditioning materials, and a hydrocarbon composition with a thermal phase transition temperature ranging between 27 and 38 ° C.

[0005] It has now been found that the inclusion of a low level of an encapsulated phase change material significantly increases the shear release effect associated with a tissue conditioning formulation containing conventional encapsulated volatile beneficial agents, for example, perfume.

Summary of the Invention

[0006] In a first aspect, the present invention provides a tissue conditioning composition, comprising: (i) an encapsulated volatile benefit agent; (ii) an encapsulated phase change asset, with a phase change temperature between 24 to 39 ° C, (iii) at least one softening agent selected from a cationic softening agent, a non-ionic softening agent and mixtures thereof; and (iv) a non-encapsulated volatile benefit agent.

[0007] In a second aspect of the present invention there is provided a process for treating fabric comprising the step of treating a fabric article with a composition as defined in the first aspect.

Detailed Description of the InventionThe Encapsulated Volatile Benefit Agent

[0008] The encapsulated volatile benefit agent comprises a capsule and a volatile benefit agent. The capsule comprises a shell and a core.

[0009] The capsule comprising the volatile benefit agent comprises a shell that is made up of materials, including, but not limited to, polyurethane, polyamide, polyolefin, polysaccharide, protein, silicone, lipid, modified cellulose, gums, polyacrylate, polyphosphate, polystyrene, polyesters or combinations of these materials. Other encapsulation materials that can be used effectively in the present invention, such as polymethylmethacrylate. Preferred encapsulation polymers include those formed from melamine-formaldehyde or urea-formaldehyde condensates, as well as other similar types of aminoplast. More preferably, the shell comprises melamine-formaldehyde.

[0010] Additionally, microcapsules made through simple or complex gelatin coacervation are suitable for use in the compositions of the invention.

[0011] A representative process used for encapsulation of aminoplasts is disclosed in US patent 3,16,941, although it is recognized that many variations with respect to materials and process steps are possible. The representative process used for encapsulating gelatin is disclosed in US patent 2,800,457, although it is recognized that many variations with respect to materials and process steps are possible. Both processes are discussed in the context of fragrance encapsulation for use in consumer products in US patents 4,145,184 and US 5,112,688, respectively.

[0012] Encapsulation can provide free pores or interstitial openings, depending on the encapsulation techniques employed.

[0013] Fragrance capsules known in the art and suitable for use in the present invention comprise a wall or shell comprising a three-dimensional cross-linked network of an aminoplastic resin, more specifically, a substituted or unsubstituted, or co-substituted acrylic acid polymer. crosslinked polymer to a urea-formaldehyde pre-condensate or a melamine-formaldehyde pre-condensate.

[0014] Microcapsule formation using similar mechanisms to the aforementioned mechanism, using (i) pre-condensed melamine-formaldehyde or urea-formaldehyde and (ii) polymers containing substituted monomeric vinyl units having proton-donor functional radicals , groups of sulfonic acid or groups of carboxylic acid anhydrides) linked to it is disclosed in US patent 4,406,816 (groups of 2-acrylamido-2-methylpropane sulfonic acid), published in patent application GB 2,062,570 A (groups of sulfonic acid styrene ) and in published patent application GB 2,006,709 A (groupings of carboxylic acid anhydrides).

[0015] The capsules for use in the invention may further comprise a carrier oil in the core. Carrier oils are hydrophobic materials that are miscible in the volatile beneficial agent materials used in the present invention. Suitable oils are those that have reasonable affinity for the beneficial agent. Where the beneficial agent is a perfume, suitable materials include, but are not limited to, triglyceride oil, mono- and diglycerides, mineral oil, silicone oil, diethyl phthalate, polyalphaolefins, castor oil and isopropyl myristate. Preferably, the oil is a triglyceride oil, more preferably a capric / caprylic triglyceride oil.

[0016] For tissue conditioning compositions, the capsules can be used in the form of a paste, which preferably comprises about 40% solid.

[0017] The particle size and the average diameter of the capsules can vary between about 10 nanometers and about 1000 micrometers, preferably from about 50 nanometers to about 100 micrometers, more preferably from about 2 to about 40 micrometers, even more preferably from about 4 to 15 micrometers. A particularly preferred range is about 5 to 10 micrometers, for example, 6 to 7 micrometers. The distribution of the capsule can be narrow, wide or multimodal. Multimodal distributions can be composed of different types of capsule chemicals.

[0018] The shell may further comprise a deposition aid, which is preferably covalently bonded.

[0019] A preferred deposition aid is a polysaccharide. The polysaccharide preferably has a β-1,4 binding structure.

[0020] Preferably, the polysaccharide is a cellulose, a cellulose derivative, or other β-1,4 binding polysaccharide having an affinity for cellulose, such as polymanane, polyglycan, polyglycomannan, polyxyloglucan and polygalactomannan or a mixture thereof. More preferably, the polysaccharide is selected from the group consisting of polyxyloglucan and polygalactomannan.

[0021] Highly preferred polysaccharides are selected from locust bean gum, tamarind gum, xyloglucan, non-ionic guar gum, cationic starch and mixtures thereof. More preferably, the deposition aid is locust bean gum.

[0022] Preferably, the polysaccharide structure has only β-1,4 bonds. Optionally, the polysaccharide has additional bonds to β-1,4 bonds, such as β-1,3 bonds. So, optionally, some other connections are present. Polysaccharide structures that include some material that is not a saccharide ring are also within the scope of the present invention (either at the end or in the polysaccharide chain).

[0023] The polysaccharide can be linear or branched. Many naturally occurring polysaccharides have at least a certain degree of branching, or in any case at least some saccharide rings are in the form of hanging side groups (which are therefore not considered in determining the degree of substitution) of a main polysaccharide structure.

[0024] Preferably, the polysaccharide is present at levels between 0.1% and 10% w / w, by weight, of the total amount of the particle.

[0025] The deposition aid, which is preferably a polysaccharide, is attached to the particle by means of a covalent bond, folding, or strong adsorption, preferably by a covalent bond or folding and more preferably by means of a covalent bond. By folding, as used herein, it means that the deposition aid is adsorbed to the particles, while polymerization proceeds and the particle grows in size, part of the adsorbed deposition aid is buried inside the particle. Thus, at the end of the polymerization, part of the deposition aid is trapped and connected to the polymeric matrix of the particle, while the rest is free to extend into the aqueous phase.

[0026] By strong adsorption, as used herein, means a strong adsorption of the deposition aid to the particle surface; such adsorption may, for example, occur due to hydrogen bonds, electrostatic attractions or Van Der Waals between the deposition aid and the particle.

[0027] The deposition aid is, therefore, mainly connected to the particle surface and is not significantly distributed throughout the internal volume of the particle. This is different from graft copolymers in which, for example, a polysaccharide can be grafted along the length of a polymeric chain. A particle that is formed from a graft copolymer must therefore contain polysaccharide in the entire internal volume of the particle, as well as on the surface of the particle, and the present invention is not intended to cover such a particle. Thus, the particle that is produced when using a polysaccharide as a deposition aid, according to the process of the invention, can be considered as a "hairy particle", which is different from a graft copolymer. This feature of the invention provides opportunities significant cost savings for the manufacturer as much less deposition aid is needed to achieve the same level of activity as systems using polysaccharide copolymers.

[0028] The deposition aid is present in the outermost portion of the shell, which is made of melamine-formaldehyde polymer with a thickness of 5 to 20nm. Polyesters of terephthalic acid and other aromatic dicarboxylic acids, with dirt-releasing properties, in particular, the so-called PET / POET (polyethylene terephthalate / polyoxyethylene terephthalate) and PET / PEG (polyethylene terephthalate / polyethylene glycol) polyesters can be used as deposition aids.

[0029] The polymer must have at least one mole of free OH groups per mole of polymer, to allow covalent bonding to the reactive dye (s). More preferably, the polymer comprises at least two free OH groups. Preferably, the OH groups are the terminal groups of the polymer.

[0030] Preferably, the oxyalkyleneoxy [-O (CH2) tO-] is selected from: oxy-1,2-propyleneoxy [-OCH2CH (Me) O-]; oxy-1,3-propyleneoxy [O-CH2CH2CH2O-]; and, oxy-1,2-ethyleneoxy [-OCH2CH2O-] (t is an integer). As is evident, one or more of the CH2 groups of the oxyalkylenoxy can be substituted by C1 to C4 alkyl groups.

[0031] Polyoxyalkylenoxy facilitates the polymer's water solubility. Preferably, the polyoxyalkylenoxy [O- (CH2) w-] sO- is selected from: polyoxy-1,2-propylenoxy [-O (CH2CH (Me) -] sO-; polyoxy-1,3-propylenoxy [O -CH2CH2CH2-] sO-; e, polyoxy-1,2-ethylenoxy [O-CH2CH2-] sO-; polyoxyalkyleneoxy can be a mixture of different oxyalkylenoxy Different types of polyoxyalkyleneoxy may be present in the polymer (sew are integers) .

[0032] Preferably, the phenyl dicarboxylate is a 1,4-phenyl dicarboxylate. Preferably, the phenyl dicarboxylate is of the form: - C (O) C6H4C (O) O-.

[0033] Examples of preferred polymers are a PET / POET polymer (polyethylene terephthalate / polyoxyethylene terephthalate), PEG / POET (polyethylene glycol / polyoxyethylene terephthalate) or PET / PEG (polyethylene terephthalate / polyethylene glycol). Most preferable is a PET / POET.

em queR2 é selecionado a partir de H ou CH3, preferencialmente H;b é 2 ou 3, preferencialmente 2;y é 2 a 100, preferencialmente 5 a 50;n e m são, independentemente, 1 a 100, preferencialmente 2 a 30; e, os grupos terminais (finais) do polímero são (CH2)bOH.[0034] The structure of a preferred polymer is found below

wherein R2 is selected from H or CH3, preferably H; b is 2 or 3, preferably 2; y is 2 to 100, preferably 5 to 50; nor are they, independently, 1 to 100, preferably 2 to 30; and, the terminal (final) groups of the polymer are (CH2) bOH.

[0035] Polymers can be synthesized by a variety of routes, for example, an esterification reaction of dimethyl terephthalate with ethylene glycol and polyethylene glycol, this reaction is discussed in Polymer Bulletin 28, 451-458 (1992). Another example would be the direct esterification of terephthalic acid with ethylene glycol and / or propylene glycol and polypropylene glycol.

[0036] Another example would be a transesterification of a polyethylene terephthalate with a polyethylene glycol or polypropylene glycol.

[0037] It is preferred that the average numerical molecular weight of the polymer is in the range of 1,000 to 50,000, preferably, the average molecular weight of the polymer is in the range of 1,000 to 15,000, more preferably 2,00010,000.The Volatile Benefit Agent

[0038] The volatile benefit agent is an agent that is volatile and that confers a benefit to the fabric.

[0039] Suitable volatile benefit agents include, but are not limited to perfumes, insect repellents, essential oils, sensitizers, such as menthol and aromatherapy actives, preferably perfumes. Mixtures of volatile beneficial agents can be used.

[0040] The total amount of volatile benefit agent is preferably from 0.01 to 10% by weight, more preferably from 0.05 to 5% by weight, even more preferably from 0.1 to 4.0%, more preferably from 0.15 to 4.0% by weight, based on the total weight of the composition.

[0041] The preferred volatile benefit agent is a perfume. The compositions of the compositions of the invention also comprise an agent of non-confined volatile benefit (also called non-encapsulated). Where the volatile beneficial agent is a perfume, the perfumes described below are suitable for use as an encapsulated volatile beneficial agent and also as the unconfined perfume component.

[0042] Useful components of the perfume include materials of natural and synthetic origin. They include individual compounds and mixtures. Specific examples of such components can be found in the current literature, for example, in Fenaroli's Handbook of Flavor Ingredients, 1975, CRC Press; Synthetic Food Adjuncts, 1947 by M. B. Jacobs, edited by Van Nostrand; or Perfume and Flavor Chemicals by S. Arctander 1969, Montclair, N.J. (USA). These substances are well known to a person skilled in the art of perfuming, flavoring, and / or flavoring consumer products, that is, transmitting an odor and / or an aroma or flavor to a traditionally scented or flavored consumer product, or modify the odor and / or taste of said consumer product.

[0043] By perfume, in this context, it means not only a fragrance of a fully formulated product, but also components of that fragrance, particularly those that are prone to loss, such as so-called "starting notes".

[0044] Withdrawal notes are defined by Poucher (Journal of the Society of Cosmetic Chemists 6 (2): 80 [1955]). Well-known examples of starting notes include citrus oils, linalool, linalyl acetate, lavender, dihydromyrcenol, rose oxide, and cis-3-hexanol. Top notes typically comprise 1525% by weight of a perfume composition and in the embodiments of the invention, which contain a higher level of top notes, it is anticipated that at least 20% by weight could be present inside the encapsulated .

[0045] Some or all of the perfume or fragrance can be encapsulated, typical perfume components that are advantageous to encapsulate, include those with a relatively low boiling point, preferably those with a boiling point below 300, preferably 100-250 ° C and pro-fragrances that can produce such components.

[0046] It is also advantageous to encapsulate perfume components that have a low ClogP (that is, those that will be partitioned in water), preferably with a ClogP less than 3.0. These relatively low boiling and relatively low ClogP materials have been called delayed-release perfume ingredients and include the following materials:

[0047] Alyl caproate, amyl acetate, amyl propionate, anisaldehyde, anisol, benzaldehyde, benzyl acetate, 4-phenyl-2-butanone, benzyl alcohol, benzyl metanoate, benzyl isovalerate, benzyl propionate, beta gamma hexenol, camphor gum, levo-carvone, d-carvone, cinnamic alcohol, cinnamyl metanoate, cis-jasmone, cis-3-hexenyl acetate, cuminic alcohol, Cyclal C, dimethyl benzyl carbinol, dimethyl benzyl carbinol acetate ethyl acetate, ethyl acetate, 3-octanone, ethyl benzoate, ethyl butyrate, 3-nonanone, ethyl phenyl acetate, eucalyptus, eugenol, fenchyl acetate, “Flor Acetate” (decenyl acetate tricycle), fructene (decenyl tricycle) propionate), geraniol, hexenol, hexenyl acetate, hexyl acetate, hexyl metanoate, hydratropic alcohol, hydroxycitronelal, “indone”, isoamyl alcohol, isomentone, isopulegol acetate, isoquinolone, ligustral, linalol, linalol oxide, linanol, methanolate menthol, methylacetophenone, methyl amyl ce surfactant, methyl anthranilate, methyl benzoate, methyl benzyl acetate, methyl eugenol, methyl heptenone, methyl heptine carbonate, methyl heptyl ketone, methyl hexyl ketone, methyl phenyl carbinol acetate, methyl salicylate, methyl saltylate -methyl, nerol, octalactone, octyl alcohol, p-cresol, methyl p-cresol ether, p-methoxy acetophenone, p-methyl-acetophenone, phenoxy ethanol, phenyl acetaldehyde, phenyl-ethyl acetate, phenyl-ethyl alcohol, phenyl ethyl dimethyl carbinol, prenyl acetate, propyl bornate, pulegone, rose oxide, safrole, 4-terpinenol, alfaterpinenol, and / or viridine.

[0048] Preferred non-encapsulated scented ingredients are the hydrophobic scented components with a ClogP above 3. As used herein, the term "ClogP" means the base 10 logarithm of the octanol / water partition coefficient (P). The octanol / water partition coefficient of a perfume raw material (PRM) is the relationship between the equilibrium concentrations in octanol and water. Since this measure is the relationship between the equilibrium concentration of a PRM in a non-polar solvent (octanol), with its concentration in a polar solvent (water), ClogP is also a measure of the hydrophobicity of a material, the higher the ClogP value, the more hydrophobic the material is. ClogP values can be readily calculated from a program called "CLOGP", which is available from Daylight Chemical Information Systems Inc., Irvine Calif., USA. Octanol / water partition coefficients are described in more detail in US Patent No. 5,578,563.

[0049] Perfume components with a ClogP above 3 comprise: Iso E Super, citronelol, ethyl cinnamate, bangalol, 2,4,6-trimethylbenzaldehyde, hexyl cinnamic aldehyde, 2,6-dimethyl-2-heptanol, diisobutylcarbinol, ethyl salicylate, phenethyl isobutyrate, ethyl hexyl ketone, propyl-amyl ketone, dibutyl ketone, methyl hepty ketone, 4,5-dihydrotoluene, caprylic aldehyde, citral, geranial, isopropyl benzoate, cyclohexanepropionic acid, candehyde acid, aldehyde caprylic, caprylic alcohol, cuminaldehyde, 1-ethyl-4-nitrobenzene, heptyl formate, 4-isopropylphenol, 2-isopropylphenol, 3-isopropylphenol, allyl disulfide, 4-methyl-1-phenyl-2-pentanone, 2-propylfuran , allyl caproate, styrene, methyl isoeugenyl ether, indonaftene, diethyl suberate, L-mentone, racemic menthol, p-cresyl isobutyrate, butyl butyrate, ethyl hexanoate, propyl valerate, n-pentyl propanoate, hexyl acetate, methyl heptanoate, trans-3,3,5-trimethylcyclohexanol, 3,3,5-trimethylcyclohexane ethyl p-anisate, 2-ethyl-1-hexanol, benzyl isobutyrate, 2,5-dimethylthiophene, isobutyl 2-butenoate, octanonitrile, gamma-nonalactone, nerol, trans-geraniol, 1-vinylheptanol, eucalyptol, 4-terpinenol, dihydrocarveol, ethyl 2-methoxybenzoate, ethyl cyclohexanecarboxylate, 2-ethylhexanal, ethyl-amyl-carbinol, 2-octanol, methylphenylglycidate, ethyl diisobutyl ketone, coumarone, propyl isovalate, butane , isopentyl propanoate, 2-ethylbutyl acetate, 6-methyl-tetrahydroquinoline, methyl eugenyl ether, ethyl dihydrocinamate, 3,5-dimethoxytoluene, toluene, ethyl benzoate, n-butyrophenone, alpha-terpineol, 2- methyl methylbenzoate, methyl 4-methylbenzoate, methyl 3-methylbenzoate, sec-butyl n-butyrate, 1,4-cineol, phenyl alcohol, pinanol, cis-2-pinanol, 2,4, dimethylacetophenone, isoeugenol, safrole Methyl 2-octinoate, o-methylanisole, p-cresyl methyl ether, ethyl anthranylate, linalool, phenyl butyrate, ethylene dibutyrate gl icol, diethyl phthalate, phenyl mercaptan, chum alcohol, m-toluquinoline, 6-methylquinoline, lepidine, 2-ethylbenzaldehyde, 4-ethylbenzaldehyde, o-ethylphenol, p-ethylphenol, m-ethylphenol, (+) - pulegone, 2, 4-dimethylbenzaldehyde, 2,5-dimethyl benzaldehyde, ethyl sorbate, benzyl propionate, 1,3-dimethylbutyl acetate, isobutyl isobutanoate, 2,6-xylenol, 2,4-xylenol, 2,5-xylenol, 3 , 5-xylenol, methyl cinnamate, hexyl methyl ether, benzyl ethyl ether, methyl salicylate, butyl-propyl ketone, amyl-ethyl ketone, hexyl-methyl ketone, 2,3-xylenol, 3,4, xylenol , cyclopentadenanolide and phenylethyl acetate.

[0050] It is common for a plurality of perfume components to be present in a formulation. In the compositions of the present invention, it is envisaged that there are four or more, preferably five or more, preferably six or more, or even seven or more different perfume components from the given list of delayed-release perfumes provided above and / or the list of perfume components with a ClogP above 3 present in the perfume.

[0051] The volatile beneficial agent can be an insect repellent. In chemical terms, most repellent assets belong to one of four groups: amides, alcohols, esters or ethers. Those suitable for use in the present invention are liquids or solids with a relatively low melting point and a boiling point above 150 ° C, preferably liquids. They evaporate slowly at room temperature. Where the volatile beneficial agent is an insect repellent, the repellents described below are suitable for use as the encapsulated volatile beneficial agent and also as the unconfined repellent component.

[0052] Many suitable repellents are related to perfume species (many fall into both classes). The most commonly used insect repellents include: DEET (N, N-diethyl-m-toluamide), lemon eucalyptus essential oil (Corymbia citriodora) and its active compound of p-menthane-3,8-diol (PMD), icaridine , also known as picaridin, D-limonene, “Bayrepel” and KBR 3023, nepetalactone, also known as "gateweed oil", citronella oil, permethrin, Neem oil and Myrica gale.

[0053] Known insect repellents derived from natural sources include: Achillea alpina, alpha-terpinene, basil oil (Ocimum basilicum), American callicarpa (blackberry), camphor, carvacrol, castor oil (Ricinus communis), herb oil -pea (Nepeta species), cedar oil (Cedrus atlantica), celery extract (Apium graveolens), cinnamon (Cinnamomum Zeylanicum, leaf oil), citronella oil (Cymbopogon fleusus), clove oil (Eugenic caryophyllata), oil eucalyptus (70% + eucalyptol, also known as cineol), fennel oil (Foeniculum vulgare), garlic oil (Allium sativum), geranium oil (also known as Pelargonium graveolens), lavender oil (Lavandula officinalis) , lemon eucalyptus essential oil (Corymbia citriodora) and its active ingredient p-menthane-3,8-diol (PMD), lemon grass oil (Cymbopogon flexuosus), yellow carnations (Tagetes species), marjoram (Tetranychus urticae and Eutetranychus orientalis), Neem oil (Azadirachta in tip), oleic acid, peppermint (Mentha x piperita), pennyroyal (Mentha pulegium), pyrethrum (from Chrysanthemum species, mainly C. cinerariifolium and C. coccineum), rosemary oil (Rosmarinus officinalis), cambará Lantana camara (Helopeltis theivora), juice from the berries of Solanum villosum, tea tree oil (Melaleuca alternifolia), thyme (Thymus species) and their mixtures.

[0054] Preferred encapsulated insect repellents are mosquito repellents available from Celessence, Rochester, England. “Celessence Repel”, containing the active ingredient Saltidin ™ and Celessence Repel Natural, containing the active Citrepel ™ 75. Saltidin is a man-made molecule originally developed by the Bayer Corporation. Citrepel is produced from eucalyptus oils and is rich in p-methane-3,8-diol (PMD). A preferred non-encapsulated repellent is Citriodiol ™ supplied by Citrefine.

[0055] Another group of volatile beneficial agents with which the present invention can be applied are the so-called "aromatherapy" materials. These include components of essential oils such as salvia sclera, eucalyptus, geranium, lavender, mace extract, neroli, nutmeg, mint, violet leaf and valerian.

[0056] Change assets are materials that can absorb, store and release heat, while the material changes its physical form. This is known as a phase shift. The water passing from the solid state (ice) to liquid is an example of this phenomenon. During these phase changes large amounts of heat are absorbed or released.

[0057] The phase change asset has a thermal phase transition temperature (TPTT) in the range of 24 to 39 ° C. TPTT can be conveniently measured by Perkin & Elmer's thermal analysis system.

[0058] Perkin & Elmer's thermal analysis system measures the heat flow for a material to be heated as a function of the material's temperature. When investigating a material at different temperatures, a temperature profile is obtained. Such a temperature profile generally has one or more peaks, each peak corresponding to a maximum for the heat flow to the material at a specific temperature. The temperature corresponding to the main peak in the temperature profile refers to the transition temperature of the thermal phase. Generally, a high TPTT corresponds to a high softening temperature of the material. The material has a TPTT in the range of 24 to 39 ° C, preferably from 25 to 39 ° C, more preferably from 26 to 38 ° C and more preferably from 26 to 30 ° C.

[0059] Phase shift assets have latent heat and exhibit a phase transmission phenomenon between phases at a phase transition temperature. The phase transition of the present invention incorporates phase changes from solid to liquid, liquid to vapor, solid to vapor, gel to liquid-crystalline. In the present invention, preferred phase transitions are changes from solid to liquid or from liquid to solid phase. In these phase changes, PTMs reversibly absorb or release heat from the environment around the phase transition temperature, which is accompanied by a corresponding change in room temperature.

[0060] The phase-changing asset can be in the form of a composition (or mixture) provided so that the total composition has a TPTT in the range of 24 to 39 ° C, preferably from 25 to 39 ° C, more preferably from 26 to 38 ° C and more preferably from 26 to 30 ° C.

[0061] Suitable compositions may comprise hydrocarbon materials comprising a straight or branched alkyl chain and, preferably, comprising an average of 12 to 50 carbon atoms per molecule, preferably 12 to 30 carbon atoms. Preferably, the hydrocarbon materials are alkanes or alkenes. Relatively small amounts of non-alkyl substituent groups may be present provided the hydrocarbon nature of the product is not substantially affected. Mixtures of these materials can be used.

[0062] Examples of hydrocarbon materials suitable for use in the hydrocarbon composition are liquid hydrocarbon materials of natural origin. Other liquid hydrocarbon materials, including liquid fractions derived from crude oil, such as mineral oil, liquid paraffins, cracked hydrocarbons and mixtures thereof. A preferred material is paraffin wax (n-octadecane).

[0063] Examples of solid or semi-solid hydrocarbon materials are paraffinic materials with longer length chains, and hydrogenated versions of some of the liquid materials mentioned above.

[0064] A particularly useful combination of hydrocarbon materials is a mixture of mineral oil (eg M85 from Daltons Company) and petroleum gel (eg Silkolene 910 from Daltons), where the weight ratio of mineral oil and gel of oil is chosen so that the TPTT of the mixture is in the range of 24 to 39 ° C. In our experiments, this result was obtained using a ratio of mineral oil to petroleum gel of less than 3: 1, preferably from 2: 1 to 1: 3. Mineral oil was a liquid mixture of linear and branched hydrocarbons having an average number of carbon atoms per molecule of 26. Petroleum gel was a semi-solid mixture of straight or branched chain hydrocarbons with an average number of carbon atoms per molecule, of 26, and having a softening temperature of about 50 ° C.

[0065] The encapsulated phase change asset comprises a capsule and a phase change asset. The capsule comprises a shell and a core. The capsule for the phase change material preferably has a shell that is permeable to the non-confined volatile benefit agent in the composition. A mixture of encapsulated phase shift assets may be present.

[0066] The phase change asset is encapsulated in a polymeric shell to form encapsulated particles with a preferred particle size of about 10 nm to 1000 μm, preferably 50 nm to 100 μm, more preferably 0.2 to 30 μm. The use of encapsulated materials has the advantage that the materials can be readily dispersed without interference or interaction with the fabric softener compound. An additional advantage is that the encapsulated material does not cause a "disorder" feeling when deposited on the fabric, which can be present in materials of a semi-liquid nature.

Suitable encapsulation polymers include those formed from melamine-formaldehyde or urea-formaldehyde condensates, as well as other similar types of aminoplast. In addition, capsules made through simple or complex gelatin coacervation are also preferred for use with the coating. Capsules with shell walls composed of polyurethane, polyamide, polyolefin, polysaccharide, protein, silicone, lipid, modified cellulose, gums, polyacrylate, polyphosphate, polystyrene and polyesters or combinations of these materials are also functional.

[0068] Other examples of suitable phase change assets are those materials disclosed in WO 03/0144460 with a phase transition temperature of 24 to 39 ° C, referred to as "Phase Transition Materials" or "PTM's" on page 6, last paragraph up to the penultimate line on page 8.

[0069] A preferred material is Lurapret TX PMC 28, commercially available from BASF, which is a material, specifically, paraffin wax (comprising n-octadecane), encapsulated in polymethylmethacrylate having a particle size in the range of 0.2 to 20 μm. This material has a phase transition temperature of about 28 ° C.

[0070] The phase-changing assets are generally used to apply from 0.2 to 1%, preferably 0.2 to 0.5% by weight of the fabric after drying. The encapsulated phase shift assets are preferably present in an amount of 0.01 to 15% by weight, more preferably 0.01 to 10% by weight, even more preferably from 0.05 to 5% by weight, still more preferably from 0.05 to 2% by weight, more preferably from 0.05 to 1% by weight and more preferably from 0.05 to 0.5% by weight, by weight of the fabric softening composition.

[0071] The encapsulated phase change material comprises a shell that is permeable to the non-confined volatile benefit agent of the composition. Suitable encapsulation polymers include those formed from melamine-formaldehyde or urea-formaldehyde condensates, as well as similar types of aminoplast. Additionally, capsules made through simple or complex gelatin coacervation are also preferred for use as a coating. Capsules with shell walls composed of polyurethane, polyamide, polyolefin, polysaccharide, protein, silicone, lipid, modified cellulose, gums, polyacrylate, polyphosphate, polystyrene, and polyesters or combinations of these materials are also suitable. A preferred material is polymethylmethacrylate.

The Fabric Softener Compound

[0072] The composition of the invention comprises a fabric softener active.

[0073] The fabric softener asset is preferably different from the phase change asset. Suitable fabric softening compounds are described below.

[0074] Tissue conditioning agents (also referred to herein as an active or fabric softening compound) can be cationic, non-ionic or mixtures thereof.

[0075] The tissue conditioning compositions according to the invention can be diluted or concentrated. Diluted products usually contain up to about 8%, usually about 2 to 8% by weight of softener active, while concentrated products can contain up to about 50% by weight, preferably from about 8 to about 50%, more preferably from 8 to 25% by weight of asset. In general, the products of the invention may contain from 2 to 50% by weight, preferably from 3 to 25% by weight of softener active.

[0076] The preferred softener active for use in rinse-conditioning compositions of the invention is a quaternary ammonium compound (QAC). The preferred fabric conditioning quaternary ammonium compound for use in compositions of the present invention are the so-called "ester quats".

[0077] Particularly preferred materials are triethanolamine quaternary ammonium compounds (TEA) linked to esters comprising a mixture of components linked to mono-, di- and tri-ester.

[0078] Typically, TEA-based fabric softener compounds comprise a mixture of the mono, di- and tri-ester forms of the compound wherein the diester-bound component comprises no more than 70% by weight of the fabric softener compound, preferably not more than 60% by weight of the fabric softener compound and at least 10% of the monoester-bound component.

em que cada R é independentemente selecionado a partir de um grupo C5-35 alquila ou alquenila; R1 representa um grupo C1-4 alquila, C2-4 alquenila ou um grupo C1-4 hidroxialquila; T é, geralmente, O-CO (isto é, um grupo éster ligado a R através do seu átomo de carbono), mas pode, alternativamente, ser CO-O (isto é, um grupo éster ligado a R através do seu átomo de oxigênio); n é um número selecionado a partir de 1 a 4; m é um número selecionado a partir de 1, 2, ou 3; e X é um contra-íon aniônico, tal como um haleto ou sulfato de alquila, por exemplo, cloreto ou metilsulfato. Di-ésteres variantes da fórmula I (isto é, m=2) são preferidos e tipicamente possuem análogos mono- e tri-ésteres associados a eles. Tais materiais são particularmente adequados para uso na presente invenção.[0079] A first group of quaternary ammonium compounds (QACs) suitable for use in the present invention is represented by formula (I):

wherein each R is independently selected from a C5-35 alkyl or alkenyl group; R1 represents a C1-4 alkyl group, C2-4 alkenyl or a C1-4 hydroxyalkyl group; T is generally O-CO (ie, an ester group attached to R via its carbon atom), but may alternatively be CO-O (ie, an ester group attached to R via its carbon atom) oxygen); n is a number selected from 1 to 4; m is a number selected from 1, 2, or 3; and X is an anionic counterion, such as an alkyl halide or sulfate, for example, chloride or methyl sulfate. Variant diesters of formula I (i.e., m = 2) are preferred and typically have mono- and tri-esters analogs associated with them. Such materials are particularly suitable for use in the present invention.

[0080] Especially preferred agents are preparations that are rich in triethanolammonium methyl sulfate diesters, otherwise referred to as "TEA ester quats".

[0081] Commercial examples include Stepantex ™ UL85, from Stepan, Prapagen ™ TQL, from Clariant, and Tetranyl ™ AHT-1, from Kao, (both di- [hardened tallow ester] triethanolammonium methyl sulfate), AT-1 ( di- [tallow ester] of triethanolammonium methyl sulfate) and L5 / 90 (di- [palm ester] of triethanolammonium methyl sulfate), both from Kao, and Rewoquat ™ WE15 (a triethanolammonium methyl sulfate diester having residues of which derived from unsaturated fatty acids C10-C20 and C16-Ci8), from Witco Corporation.

[0082] In addition, soft quaternary ammonium actives, such as Stepantex VK90, Stepantex VT90, SP88 (from Stepan), Prapagen TQ (from Clariant), Dehyquart AU-57 (from Cognis), Rewoquat WE18 (from Degussa) and Tetranyl L190 P, Tetranyl L190 SP and Tetranyl L190 S (all from Kao) are suitable.

em que cada grupo R1 é independentemente selecionado a partir de grupos C1-4 alquila, hidroxialquila ou C2-4 alquenila; e em que cada grupo R2 é independentemente selecionado a partir de grupos C8-28 alquila ou alquenila; e em que n, T, e X- são como definidos acima.[0083] A second group of QACs suitable for use in the invention is represented by formula (II):

wherein each R1 group is independently selected from C1-4 alkyl, hydroxyalkyl or C2-4 alkenyl groups; and wherein each R2 group is independently selected from C8-28 alkyl or alkenyl groups; and where n, T, and X- are as defined above.

[0084] Preferred materials in this second group include 1,2 bis [tallow-oxy] -3-trimethylammonium-propane chloride, 1,2 bis [hardened tallow-oxy] -3-trimethylammonium-propane chloride, 1, 2 bis [oleoyl-oxy] -3-trimethylammonium-propane, and 1,2 bis [steryl-oxy] -3-trimethylammonium-propane chloride. Such materials are described in US 4,137,180 (Lever Brothers). Preferably, these materials also comprise an amount of the corresponding monoester.

em que cada grupo R1 é independentemente selecionado a partir grupos C1-4 alquila, ou C2-4 alquenila; e em que cada grupo R2 é independentemente selecionado a partir de grupos C8-28 alquila ou alquenila; e n, T, e X- são como definidos acima. Os materiais preferidos deste terceiro grupo incluem cloreto de bis(2-seboiloxietil)dimetilamônio, versões parcialmente endurecidas e endurecidas do mesmo.[0085] A third group of QACs suitable for use in the invention is represented by formula (III):

wherein each R1 group is independently selected from C1-4 alkyl, or C2-4 alkenyl groups; and wherein each R2 group is independently selected from C8-28 alkyl or alkenyl groups; en, T, and X- are as defined above. The preferred materials of this third group include bis (2-seboyloxyethyl) dimethylammonium chloride, partially hardened and hardened versions thereof.

[0086] The iodine value of the fabric conditioning quaternary ammonium material is preferably 0 to 80, more preferably 0 to 60, and most preferably 0 to 45. The iodine value can be chosen as appropriate. Essentially saturated material having an iodine value of 0 to 5, preferably 0 to 1, can be used in the compositions of the invention. Such materials are known as "hardened" quaternary ammonium compounds.

Another preferred range of iodine values is 20 to 60, preferably 25 to 50, more preferably 30 to 45. Such a material is a "soft" triethanolamine quaternary ammonium compound, preferably di-methyl sulfate. alkyl ester of triethanolamine. Such an ester-bound quaternary ammonium compound comprises unsaturated fatty chains.

[0088] The iodine value, as used in the context of the present invention, refers to the measurement of the degree of unsaturation present in a material by an NMR spectroscopy method as described in Anal. Chem., 34, 1136 (1962), Johnson and Shoolery.

em que cada grupo R1 é independentemente selecionado a partir de grupos C14 alquila, hidroxialquila ou C2-4 alquenila; grupo R2 é independentemente selecionado a partir de grupos C8-28 alquila ou alquenila; e X- é como definido acima.[0089] Another type of softener compound is a non-ester quaternary ammonium material represented by the general formula (IV): -

wherein each R1 group is independently selected from C14 alkyl, hydroxyalkyl or C2-4 alkenyl groups; group R2 is independently selected from C8-28 alkyl or alkenyl groups; and X- is as defined above.

Oily Sugar Derivatives

[0090] The compositions of the invention may contain a non-cationic softening material, which is preferably an oily sugar derivative. An oily sugar derivative is a liquid or soft solid derivative of a cyclic polyol (CPE) or reduced saccharide (RSE), said derivative results from the esterification or etherification of 35 to 100% of the hydroxyl groups in said polyol or in said saccharide . The derivative has two or more ester or ether groups independently linked to a C8-C22 alkyl or alkenyl chain.

[0091] Advantageously, the CPE or RSE has no substantial crystalline character at 20 ° C. Instead, it is preferably in a liquid or soft solid state as defined herein at 20 ° C.

[0092] The liquid or soft solid CPEs or RSEs (as defined herein) suitable for use in the present invention result from the esterification or etherification, from 35 to 100% of the hydroxyl groups of the starting cyclic polyol or reduced saccharide, with groups so that CPEs or RSEs are in the required liquid or soft solid mattress. These groups typically contain unsaturation, branching or mixed-length chains.

[0093] Typically CPEs or RSEs have 3 or more ester or ether groups or mixtures thereof, for example, 3 to 8, especially 3 to 5. It is preferred that two or more ester or ether groups of the CPE or RSE are, independently of one on the other, linked to a C8 to C22 alkyl or alkenyl chain. The C8 to C22 alkyl or alkenyl groups can be branched or linear carbon chains.

Preferably 35 to 85% of the hydroxyl groups, more preferably 40-80%, even more preferably 45-75%, such as 45-70%, are esterified or etherified.

[0095] Preferably, the CPE or RSE contains at least 35% of tri or higher esters, for example, at least 40%.

[0096] The CPE or RSE has at least one of the chains independently linked to the ester or ether groups having at least one unsaturated bond. This provides a cost-effective way to make the CPE or CSR a liquid or a soft solid. It is preferred that, predominantly, unsaturated fatty chains, derived from, for example, rapeseed oil, cottonseed oil, soybean oil, oleic, tallow, palmitoleic, linoleic, erucic or other sources of vegetable saturated fatty acids, are linked to the ester / ether groups.

[0097] These chains are referred to below as ester or ether chains (from CPE or RSE).

[0098] The ester or ether chains of the CPE or RSE are preferably predominantly unsaturated. Preferred CPEs or RSEs include sucrose tetraseboate, sucrose tetrarapeate, sucrose tetraoleate, cottonseed oil or soybean oil sucrose tetraesters, cellobiose tetraoleate, sucrose trioleate, sucrose triapeate, sucrose pentaoleate, sucrose pentaoleate, sucrose pentaoleate, sucrose pentaoleate. , sucrose hexaoleate, sucrose hexarapeate, sucrose triesters, pentaesters and hexaesters of soybean oil or cottonseed oil, glucose tyroleate, glucose tetraoleate, xylose trioleate, or tetra-, tri-, penta- or hexa - sucrose esters with any mixture of predominantly unsaturated fatty acid chains. The most preferred CPEs or RSEs are those with monounsaturated fatty acid chains, that is, in which any polyunsaturation has been removed by partial hydrogenation. However, some CPEs or RSEs based on polyunsaturated fatty acid chains, such as sucrose tetralinolate, can be used, provided that most of the polyunsaturation has been removed by partial hydrogenation.

[0099] The most preferred liquid CPEs or RSEs are any of the above, but those that polyunsaturation has been removed by means of partial hydrogenation.

[0100] Preferably, 40% or more of the fatty acid chains contain an unsaturated bond, more preferably 50% or more, more preferably 60% or more. In most cases, 65% to 100%, for example, 65% to 95% contain an unsaturated bond.

[0101] CPEs are preferred for use with the present invention. Inositol is a preferred example of a cyclic polyol. Inositol derivatives are especially preferred.

[0102] In the context of the present invention, the term cyclic polyol encompasses all forms of saccharides. In fact, saccharides are especially preferred for use with this invention. Examples of preferred saccharides to be derived from CPEs or RSEs are monosaccharides and disaccharides.

[0103] Examples of monosaccharides include xylose, arabinose, galactose, fructose, sorbose and glucose. Glucose is especially preferred. Examples of disaccharides include maltose, lactose, cellobiose and sucrose. Sucrose is especially preferred. An example of a reduced saccharide is sorbitan.

[0104] Liquid or soft solid CPEs can be prepared by methods well known to those skilled in the art. These include acylation of the cyclic polyol or reduced saccharide with an acid chloride; transesterification of the cyclic polyol or reduced saccharide fatty acid esters, using a variety of catalysts; acylation of the cyclic polyol or reduced saccharide with an acid anhydride and acylation of the cyclic polyol or reduced saccharide with a fatty acid. See, for example, US 4,386,213 and AU 14416/88 (both P&G).

[0105] It is preferred that the CPE or RSE has 3 or more, preferably 4 or more ester or ether groups. If the CPE is a disaccharide, it is preferred that the disaccharide has three or more ester or ether groups. Particularly preferred EPCs are esters with a degree of esterification of 3 to 5, for example, esters of tri, tetra and penta sucrose.

[0106] When the cyclic polyol is a reducing sugar, it is advantageous that each ring of the CPE has an ether or ester group, preferably in the C1 position. Suitable examples of such compounds include methyl glucose derivatives.

[0107] Examples of suitable CPEs include alkyl (poly) glycoside esters, in particular alkyl glycoside esters having a degree of polymerization of 2.

[0108] The length of the unsaturated (and saturated, if present) chain in the CPE or RSE is C8C22, preferably C12-C22. It is possible to include one or more C1-C8 chains, however, these are less preferred.

[0109] Liquid or soft solid CPEs or RSEs that are suitable for use in the present invention are characterized as materials having a single: liquid: liquid ratio between 50:50 and 0: 100 at 20 ° C as determined by the relaxation time of T2 NMR, preferably between 43:57 and 0: 100, more preferably between 40:60 and 0: 100, such as, 20:80 and 0: 100. The T2 NMR relaxation time is used to characterize the solid: liquid proportions in soft solid products, such as fats and margarines. For the purpose of the present invention, any component of the signal with a T2 less than 100μs is considered a solid component and any component with T2> 100 μs is considered a liquid component.

[0110] For CPEs and RSEs, the prefixes (for example, tetra and penta) indicate only the average degrees of esterification. The compounds exist as a mixture of materials ranging from monoester to fully esterified ester. This is the average degree of esterification that is used here to define CPEs and RSEs.

[0111] The HLB of the CPE or RSE is typically between 1 and 3.

[0112] When present, CPE or RSE is preferably present in the composition in an amount of 0.5-50% by weight, based on the total weight of the composition, more preferably 1-30% by weight, such as 2-25 %, for example, 2-20%.

[0113] CPEs and RSEs for use in the compositions of the invention include sucrose tetraoleate, sucrose pentaerucate, sucrose tetraerucate and sucrose pentaoleate.

Optional Ingredients Co-Softeners and Fat Complexing Agents

[0114] Co-softeners can be used. When employed, they are typically present between 0.1 to 20% and, particularly between 0.5 to 10%, based on the total weight of the composition. Preferred co-softeners include fatty esters and N-fatty oxides. Fatty esters that can be used include fatty monoesters, such as glycerol monostearate, fatty sugar esters, such as those disclosed WO 01/46361 (Unilever).

[0115] The compositions of the present invention may comprise a fatty complexing agent.

[0116] Especially suitable fatty complexing agents include fatty alcohols and fatty acids. Of these, fatty alcohols are most preferred.

[0117] Fatty complexing material can be used to improve the viscosity profile of the composition.

[0118] Preferred fatty acids include hardened tallow fatty acid (available under the trade name Pristerene ™, from Uniqema). Preferred fatty alcohols include hardened tallow alcohol (available under the trade names Stenol ™ and Hydrenol ™, from Cognis and Laurex ™ CS, from Albright and Wilson).

[0119] The fatty complexing agent is preferably present in an amount greater than 0.3 to 5% by weight based on the total weight of the composition. More preferably, the fatty component is present in an amount of 0.4 to 4%. The weight ratio of the monoester component of the fabric softener quaternary ammonium material to the fatty complexing agent is preferably 5: 1 to 1: 5, more preferably 4: 1 to 1: 4, more preferably 3: 1 to 1: 3, for example, 2: 1 to 1: 2. Nonionic surfactant

[0120] The compositions of the present invention may further comprise a non-ionic surfactant. Typically, these can be included for the purpose of stabilizing the compositions. These are particularly suitable for compositions comprising hardened quaternary ammonium compounds.

[0121] Suitable non-ionic surfactants include ethylene oxide and / or propylene oxide addition products with fatty alcohols, fatty acids and fatty amines. Any of the alkoxylated materials of the particular type described below can be used as the nonionic surfactant.

onde R é selecionado do grupo consistindo de cadeias de grupos alquila e/ou acil-hidrocarbila ramificadas primárias ou secundárias (quando Y =-C(O)O, P + um grupo acil-hidrocarbila); cadeias primárias secundárias e ramificadas de grupos alquenil-hidrocarbonila e cadeias primárias secundárias e ramificadas de grupos fenólicos alquenil-substituídos; os grupos hidrocarbila tendo um comprimento de cadeia de 8 a cerca de 25, preferencialmente 10 a 20, por exemplo, 14 a 18 átomos de carbono.[0122] Suitable surfactants are substantially water-soluble surfactants of the general formula:

where R is selected from the group consisting of branched primary and secondary alkyl and / or acylhydrocarbyl groups (when Y = -C (O) O, P + an acyl hydrocarbyl group); secondary and branched primary chains of alkenyl hydrocarbonyl groups and secondary and branched primary chains of alkenyl-substituted phenolic groups; hydrocarbyl groups having a chain length of 8 to about 25, preferably 10 to 20, for example, 14 to 18 carbon atoms.

em que R tem o significado dado acima ou pode ser hidrogênio; e Z é, pelo menos, cerca de 8, preferencialmente pelo menos cerca de 10 ou 11.[0123] In the general formula for the ethoxylated nonionic surfactant, Y is typically:

where R has the meaning given above or can be hydrogen; and Z is at least about 8, preferably at least about 10 or 11.

[0124] Preferably the nonionic surfactant has an HLB of about 7 to about 20, more preferably 10 to 18, for example, 12 to 16. Genapol ™ C200 (Clariant), based on a coconut chain and 20 EO groups is an example of a suitable nonionic surfactant.

[0125] If present, the nonionic surfactant is present in an amount of 0.01 to 10%, more preferably 0.1 to 5 by weight, based on the total weight of the composition.

Toning Dyes

[0126] Optional toning dyes can be used. Preferred dyes are violet or blue. Suitable and preferred classes of dyes are discussed below. In addition, unsaturated quaternary ammonium compounds are subject to a certain degree of UV light and / or radicals of auto-oxidation of catalyzed transition metal ions, with a consequent risk of yellowing of the tissue. The presence of a toning dye also reduces the risk of yellowing from this source.

[0127] Different toning dyes provide different levels of color. The level of tinting dye present in the compositions of the present invention therefore depends on the type of tinting dye. Generally preferred ranges, suitable for the present invention, are from 0.00001 to 0.1% by weight, more preferably 0.0001 to 0.01% by weight, more preferably 0.0005 to 0.005% by weight, by weight. total composition. Direct Dyes

[0128] Direct dyes (also known as substantive dyes) are the class of water-soluble dyes that have an affinity for fibers and are absorbed directly. Direct violet and direct blue dyes are preferred.

[0129] Preferably, the dyes are bis-azo or tris-azo dyes are used.

em que:os anéis D e E podem ser, independentemente, fenil ou naftil, como mostrado; R1 é selecionado a partir de: hidrogênio e C1-C4-alquila, preferencialmente hidrogênio;R2 é selecionado a partir de: hidrogênio, C1-C4-alquila, fenil substituído ou não- substituído e naftil substituído ou não-substituído, preferencialmente fenil;R3 e R4 são selecionados independentemente a partir de: hidrogênio e C1-C4- alquila, preferencialmente hidrogênio ou metila;X e Y são independentemente selecionados a partir de: hidrogênio, C1-C4- alquila e C1-C4-alcoxi; preferencialmente, o corante tem X=metila; e, Y=metoxi e n é 0, 1 ou 2, preferencialmente 1 ou 2.[0130] More preferably, the direct dye is a direct violet of the following structures:

wherein: rings D and E can be, independently, phenyl or naphthyl, as shown; R1 is selected from: hydrogen and C1-C4-alkyl, preferably hydrogen, R2 is selected from: hydrogen, C1-C4-alkyl, substituted or unsubstituted phenyl and substituted or unsubstituted naphthyl, preferably phenyl; R3 and R4 are independently selected from: hydrogen and C1-C4-alkyl, preferably hydrogen or methyl; X and Y are independently selected from: hydrogen, C1-C4-alkyl and C1-C4-alkoxy; preferably, the dye has X = methyl; and, Y = methoxy and n is 0, 1 or 2, preferably 1 or 2.

[0131] Preferred colors are direct violet 7, direct violet 9, direct violet 11, direct violet 26, direct violet 31, direct violet 40, direct violet 41, direct violet 41, direct violet 51 and direct violet 99. Bis-azo dyes containing copper, such as direct violet 66 can be used.

[0132] Benzidene-based dyes are less preferred.

[0133] Preferably, the direct dye is present in 0.00001% by weight to 0.0010% by weight of the formulation.

[0134] In another embodiment, the direct dye can be covalently linked to the photo-brightener, for example, as described in WO2006 / 024612.

Acid Dyes

em que Ra, Rb, Rc e Rd são selecionados a partir de: H, uma cadeia linear ou ramificada C1 a C7-alquila, uma benzila, uma fenila, e uma naftila;o corante é substituído com pelo menos um grupo SO3- ou COO-;o anel B não carrega um grupo negativamente carregado ou o sal do mesmo;e o anel A pode adicionalmente ser substituído para formar um grupo naftila; o corante é opcionalmente substituído por grupos selecionados a partir de: amina, metila, etila, hidroxila, metoxi, etoxi, fenoxi, Cl, Br, I, F, e NO2.[0135] Substantial acidic cotton dyes provide benefits for garments containing cotton. Preferred dyes and dye mixtures are blue or violet. Preferred acid dyes are: (i) azine dyes, where the dye is of the following nuclear structure:

where Ra, Rb, Rc and Rd are selected from: H, a straight or branched chain C1 to C7-alkyl, a benzyl, a phenyl, and a naphthyl; the dye is replaced with at least one SO3- or COO-, ring B does not carry a negatively charged group or its salt, and ring A can additionally be substituted to form a naphthyl group; the dye is optionally substituted by groups selected from: amine, methyl, ethyl, hydroxyl, methoxy, ethoxy, phenoxy, Cl, Br, I, F, and NO2.

[0136] Preferred azine dyes are: acid blue 98, acid violet 50, and acid blue 59, more preferably acid violet 50 and acid blue 98.

[0137] Other preferred non-azine acid dyes are acid violet 17, acid black 1 and acid blue 29.

[0138] Preferably, the acid dye is present in 0.0005% by weight to 0.01% by weight of the formulation.

Hydrophobic Dyes

[0139] The composition of the invention may comprise one or more hydrophobic dyes selected from benzodifurans, methino, triphenylmethanes, napthalimides, pyrazole, naphthoquinone, anthraquinone and mono-azo or di-azo chromophore dyes. Hydrophobic dyes are dyes that do not contain any charged water solubilizer group. Hydrophobic dyes can be selected from the group of dispersed dyes and solvents. Blue and violet anthraquinones and mono-azo dyes are preferred.

[0140] Preferred dyes include solvent violet 13, scattered violet 27, scattered violet 26, scattered violet 28, scattered violet 63 and scattered violet 77.

[0141] Preferably, the hydrophobic dye is present in 0.0001% by weight to 0.005% by weight of the formulation.

Basic Dyes

[0142] Basic dyes are organic dyes that carry a positive charge. They are deposited in cotton. They are of particular use for use in compositions that contain predominantly cationic surfactants. Dyes can be selected from the basic violet and basic blue dyes listed in the Color Index International.

[0143] Preferred examples include triarylmethane basic dyes, methane basic dyes, anthraquinone basic dyes, basic blue 16, basic blue 65, basic blue 66, basic blue 67, basic blue 71, basic blue 159, basic violet 19, basic violet 35, basic violet 38, basic violet 48; basic blue 3, basic blue 75, basic blue 95, basic blue 122, basic blue 124, basic blue 141. Reactive dyes

[0144] Reactive dyes are dyes that contain an organic group capable of reacting with cellulose and binding the dye to cellulose with a covalent bond. They are deposited in cotton.

[0145] Preferably, the reactive group is hydrolyzed or the reactive group of the dyes was reacted with an organic species such as a polymer, as well as for the binding of the dye to this species. Dyes can be selected from the reactive violet and reactive blue dyes listed in the International Color Index.

[0146] Preferred examples include reactive blue 19, reactive blue 163, reactive blue 182 and reactive blue 96.

Dye Conjugates

[0147] Dye conjugates are formed by binding direct, acidic or basic dyes to polymers or particles through physical forces.

[0148] Depending on the choice of polymer or particle, they are deposited on cotton or synthetic materials. A description is given in WO2006 / 055787. They are not preferred.

[0149] Particularly preferred dyes are: direct violet 7, direct violet 9, direct violet 11, direct violet 26, direct violet 35, direct violet 40, direct violet 41, direct violet 51, direct violet 99, direct violet 99, acid blue 98, acid violet 50, acid blue 59, acid violet 17, acid black 1, acid blue 29, solvent violet 27, dispersed violet 26, dispersed violet 28, dispersed violet 63, dispersed violet 77 and mixtures thereof.

Optional Additional Ingredients

[0150] The compositions of the invention may contain one or more other ingredients. Such ingredients include additional preservatives (eg, bactericides), pH buffering agents, perfume carriers, hydrotropes, anti-redeposition agents, dirt releasing agents, polyelectrolytes, anti-shrink agents, anti-wrinkle agents, antioxidants, sunscreens , anti-corrosion agents, draining enhancing agents, anti-static agents, ironing aids, silicones, defoamers, dyes, pearls and / or opacifiers, natural oils / extracts, processing aids, for example, electrolytes, cleaning agents hygiene, for example, antibacterials and antifungals, thickeners and skin benefit agents.

[0151] Fabric softening compositions may also comprise viscosity modifiers. Suitable viscosity modifiers are disclosed, for example, in WO 02/081611, US 2004/0214736, US 6827795, EP 0501714, US 2003/0104964, EP 0385749 and EP 331237. Product shape

[0152] The compositions of the present invention are preferably softening compositions added to the rinse.

[0153] The compositions have a pH ranging from about 2.5 to 6, preferably from about 2.5 to 4.5, more preferably about 2.5 to 2.8. Compositions of the invention may also contain pH modifiers, such as hydrochloric acid or lactic acid.

[0154] A composition of the invention is preferably in liquid form. The composition can be a concentrate to be diluted in a solvent, including water, before use. The composition can also be a ready-to-use (in use) composition. Preferably, the composition is provided as a ready-to-use liquid comprising an aqueous phase. The aqueous phase can comprise water-soluble species, such as mineral salts or short-chain (C1-4) alcohols.

[0155] The composition is preferably for use in the rinse cycle of a washing operation for household textile products, where, it can be added directly in an undiluted state to a washing machine, for example, through a dispenser drawer or , by a top loading washing machine, directly on the drum. Alternatively, it can be diluted before use. The compositions can also be used in a domestic hand wash operation. It is also possible for the compositions of the present invention to be used in industrial washing operations, for example, as a finishing agent to soften new clothes before sale to consumers.

Preparation

[0156] Compositions of the invention can be prepared by any suitable method for preparing dispersed, emulsified systems. One method involves forming a melt premix of the active materials in water at an elevated temperature, adding more water to obtain the desired concentration of active, and then cooling to room temperature. When desired, some minor ingredients, such as electrolytes, coloring agents, etc., can be dosed later. A second method involves the formation of the product by phase inversion of a water emulsion into hydrocarbons, wherein the cationic material is either part of the hydrocarbon phase or added separately as a pre-dispersion. This method is advantageous because it provides very finely divided hydrocarbon particles in the final product. In an alternative method, the encapsulated phase-change asset can be dosed later, in the form of an aqueous paste.

[0157] The capsules can be combined with the composition, at any time during the preparation of the laundry treatment composition. Capsules can be added to the composition comprising unconfined scent or vice versa. For example, the capsules can be dosed afterwards to a prefabricated composition comprising the unconfined volatile beneficial agent or may be combined with other ingredients, such as water, during the preparation of the composition comprising the non-volatile beneficial agent. -confined.

EXAMPLES

[0158] Embodiments of the invention will now be illustrated by the following non-limiting examples. Other changes will be evident to those skilled in the art.

[0159] Examples of the invention are represented by a number. Comparative examples are represented by a letter.

[0160] Unless otherwise stated, the amounts of components are expressed as a percentage of the total weight of the composition. Example 1: - Preparation and composition of Fabric Conditioner 1. according to the invention, and Comparative Example A.

[0161] Conditioner 1 and Comparative Example A were concentrated liquid tissue conditioners, comprising about 12% of the softener active.

[0162] A is a commercially available fabric conditioner, called Comfort, containing encapsulated and free perfume.

[0163] Encapsulated phase change material, Lurapret TX PMC 28, available from BASF was subsequently dosed to Fabric Conditioner A at a level of 0.1% by weight, to form Conditioner 1.Example 2: - Treatment of tissue using Conditioner 1 and Comparative Example A

[0164] Terry towels 100% cotton were treated with Conditioner 1 and Comparative Example A using a method that simulates a domestic washing machine, as follows: 1. 40 g of tissue was treated with 1000 ml of water containing 0.75 g of tissue conditioner (Conditioner 1 or Comparative Example A) .2. The tissue and liquid were then treated in a Tergotometer at 20 ° C for 10 minutes.3. The washed fabric was then twisted in a Creda Debonair AutoPump rotary dryer for 30 seconds and left to air dry at room temperature.

[0165] An untreated monitor was used as a control. Example 3: - Scent intensity emanating from fabrics treated with Conditioner 1 and Comparative Example A

Intensidade de perfume mediante cisalhamento = diferença na intensidade de perfume entre o tecido friccionado e não-friccionado.[0166] The dry monitors were then evaluated using a standard perfume test (monadic, sequential blind, randomized, with 8 expert evaluators). Assessments were made both before rubbing and after rubbing.Table 1: Scent intensity of just washed fabric (control), and fabric treated with Comparative Example A and Conditioner 1.

Scent intensity by shearing = difference in scent intensity between rubbed and non-rubbed fabric.

[0167] The higher the number, the greater the perfume intensity.

[0168] It will be seen that the fabric treated according to the invention provided an enhanced perfume potentiation.

[0169] The friction potentiation to 1 is significantly greater than for comparative example A. This is a surprising effect, given the low level of encapsulated phase change material used in the composition.

Claims (15)

1. Tissue conditioning composition, characterized by comprising: (i) an encapsulated volatile benefit agent; (ii) an encapsulated phase change asset, said phase change asset having a phase change temperature from 24 to 39 ° C; (iii) at least one softening agent selected from a cationic softening agent, a non-ionic softening agent and mixtures thereof; and (iv) a non-encapsulated volatile benefit agent. 2. Composition according to claim 1, characterized in that the cationic softening agent is a quaternary ammonium compound. Composition according to claim 2, characterized in that the quaternary ammonium compound is an ester-linked quaternary ammonium compound (TEA) comprising a mixture of components linked to mono-, di- and tri-ester. Composition according to claim 1, characterized in that the nonionic softening agent is a sugar polyester. 5. Composition according to any one of the preceding claims, characterized in that the volatile benefit agent is selected from a perfume, insect repellent, aromatherapy oil, sensitizers, such as menthol and an essential oil. Composition according to claim 5, characterized in that the volatile beneficial agent is a perfume. Composition according to any one of the preceding claims, characterized in that the volatile benefit agent is present in an amount of 0.01 to 10% by weight, based on the total weight of the composition. 8. Composition according to any one of the preceding claims, characterized in that the encapsulated phase-change active is present in an amount of 0.01 to 15% by weight, by total weight of the composition. Composition according to any one of the preceding claims, characterized in that the phase-changing asset comprises hydrocarbon materials, comprising a straight or branched alkyl chain comprising on average between 12 to 50 carbon atoms per molecule. 10. Composition according to claim 9, characterized in that the phase-changing agent is selected from mineral oil, liquid paraffin, cracked hydrocarbons and their mixtures. 11. Composition according to claim 10, characterized by the phase-changing asset being n-octadecane. Composition according to Claim 9, characterized in that the phase-changing agent comprises a mixture of mineral oil and petroleum gel. Composition according to any one of the preceding claims, characterized in that the encapsulated phase-changing agent has a particle size between 10 nm and 1000 microns. Composition according to any one of the preceding claims, characterized in that it is a fabric conditioning composition added to the rinse. 15. Fabric treatment process, characterized in that it comprises the step of treating a fabric article with a composition as defined in any of the preceding claims.