Ready-to-use composition for oxidation coloring of keratinous materials, process and kit associated therewith
The ready-to-use oxidation coloring composition with hydrolyzed protein and other agents enhances color penetration and retention, addressing the issue of rapid fading in oxidative hair coloring systems, providing vivid and long-lasting results with improved cosmetic properties.
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- HENKEL KGAA
- Filing Date
- 2024-11-27
- Publication Date
- 2026-06-04
AI Technical Summary
Existing hair coloring technologies, particularly oxidative systems, fail to provide long-lasting and vivid color results due to rapid fading caused by external factors, leading to undesirable yellowish and mottled appearances, and existing post-treatment solutions are inadequate in preventing color loss.
A ready-to-use composition for oxidation coloring that includes hydrolyzed protein with a molecular weight of 600 to 2,500 Daltons, fatty substances, oxidation dye precursors, alkalizing agents, and oxidizing agents, enhancing color penetration and retention without post-treatment.
The composition achieves more vivid and long-lasting color results while maintaining good cosmetic properties such as pleasant feel, smoothness, and ease of disentangling, by using hydrolyzed protein to improve color vibrancy and retentivity.
Smart Images

Figure PCTCN2024134787-FTAPPB-I100001 
Figure PCTCN2024134787-FTAPPB-I100002 
Figure PCTCN2024134787-FTAPPB-I100003
Abstract
Description
Ready-To-Use Composition for Oxidation Coloring of Keratinous Materials, Process and Kit Associated TherewithTECHNICAL FIELD OF THE INVENTION
[0001] The present invention relates to a ready-to-use composition for oxidation coloring of keratinous materials, for example human keratinous materials, in particular human hairs; a multi-compartment kit for oxidation coloring of keratinous materials, for example human keratinous materials, in particular human hairs; and a process for coloring keratinous materials, for example human keratinous materials, in particular human hairs using the ready-to-use composition or the multi-compartment kit.BACKGROUND OF THE INVENTION
[0002] With the rise of personalization and beauty trends, the global hair colorant market continues to expand. Consumers are increasingly demanding a color diversity and longevity. The younger generation, particularly influenced by social media, is becoming more accepting of hair coloring, resulting in a heightened desire for unique styles and self-expression.
[0003] There are various hair coloring systems for satisfying different coloring requirements, wherein direct dyes and / or pigments may be used for a short-term coloring, and an oxidative coloring system is usually used for a long-lasting coloring result. Oxidative coloring systems are customarily offered in the form of a multi-compartment kit made up of at least two agents, wherein a first agent comprises an oxidation dye precursor and an alkalizing agent, a second agent comprises an oxidizing agent, and an optional third agent comprises a conditioner which may be applied after actual coloring operations for hair caring.
[0004] Oxidation dye precursors (i.e., primary intermediates, also called oxidation bases or developers, and couplers, also called color modifiers) themselves are colorless or weakly colored compounds, and the formation of actual dyes takes place only in the course of application by contact of oxidation dye precursors with the oxidizing agent. Due to their high sensitivity to the oxidizing agent, the oxidation bases are initially oxidatively converted into reactive intermediate stages, and subsequently react with couplers and form actual dyes. The shades obtained with oxidation bases may be varied by combining them with different couplers. The variety of molecules used as oxidation bases and couplers allows a wide range of colors to be obtained.
[0005] Although the colors of hair provided by a coloring treatment are generally satisfactory on the day of treatment or within an initial stage after the treatment, these imparted colors gradually diminish as a result of external factors (e.g., repeated washing cycles) and damages of hairs themselves, and the tints fade to produce colors that are less vivid and less aesthetic. For example, translucent color tones, with which hairs usually have a high degree of transparency and gloss especially in the sun and thus can enhance one’s own overall beauty and temperament, are gaining popularity in Asia, especially among young people in China. For realizing such translucent color tones, hairs are generally subjected to a pre-bleaching treatment and a subsequent application of an oxidative coloring complex in low dosages. The pre-bleaching treatment will lead to a medium to high damage to hair fibers, and the fragile cuticles of damaged hair fibers will in turn accelerate the loss of colorants during regular shampooing and exposure to external factors (e.g., UV rays) . Such a rapid color fading leads to undesirable yellowish and mottled appearances.
[0006] For this reason, there is growing interest in hair color-locking products such as specialized shampoos and / or treatments, and many efforts have already been devoted to find out effective solutions. However, most of existing technologies are focused on the post-treatment of colored hairs, for example, use of hair care shampoos and / or conditioners, such as applying compositions containing a polyamine-based or silicone-based polymer (e.g., a composition comprising a polydimethylsiloxane and an active matter such as kernel oil, avocado extract, and tea polyphenol) to the hair surface during post-treatment. Such technologies not only intensify the operational complexity, but also sometimes yield unsatisfactory color-locking results. In particular, such technologies are essentially remedial actions afterwards, rather than preventive actions beforehand, and cannot effectively, fundamentally overcome the fading issue in the course of hair coloring.
[0007] In view of the foregoing, it is desirable to develop a technology, which can achieve an effective hair coloration, especially effectively, fundamentally overcome the fading issue in the course of hair coloring, without a post-treatment.SUMMARY OF THE INVENTION
[0008] The present inventors have conducted an intensive study, and found that, by using a hydrolyzed protein with a specific molecular weight and in a specific amount in an oxidative coloring system, the oxidative coloring system can significantly improve the quality and retentivity of the hair colorations (i.e., providing a higher color vibrancy and a higher color retentivity or color fastness) without a post-treatment, while maintaining good cosmetic properties (e.g., pleasant feel, smoothness, softness, and ease of disentangling) of colored keratinous materials.
[0009] In a first aspect, the present invention is directed to a ready-to-use composition for oxidation coloring of keratinous materials, for example human keratinous materials, in particular human hairs, comprising, based on the total weight of the ready-to-use composition:
[0010] (a) at least 0.3 wt. %of at least one hydrolyzed protein with a molecular weight of 600 to 2,500 Daltons (Da) ;
[0011] (b) at least one fatty substance;
[0012] (c) at least one oxidation dye precursor;
[0013] (d) at least one alkalizing agent; and
[0014] (e) at least one oxidizing agent.
[0015] In a second aspect, the present invention is directed to a multi-compartment kit for oxidation coloring of keratinous materials, for example human keratinous materials, in particular human hair, comprising:
[0016] - a first compartment, which contains an agent comprising at least 0.3 wt. %of at least one hydrolyzed protein with a molecular weight of 600 to 2, 500 Da, at least one oxidation dye precursor, at least one fatty substance, and at least one alkalizing agent; and
[0017] - a second compartment, which contains an agent comprising at least one oxidizing agent, and optionally at least one fatty substance that is same or different from the at least one fatty substance in the first compartment,
[0018] wherein each amount is based on the total weight of a mixture of the agents in the first and second compartments obtained immediately before use.
[0019] In a third aspect, the present invention is directed to a process for coloring keratinous material, for example human keratinous materials, in particular human hairs, using the ready-to-use composition of the first aspect or the multi-compartment kit of the second aspect.
[0020] As compared with the prior art, the ready-to-use composition of the present invention is advantageous in that the penetration of colorants can be significantly enhanced, resulting in more vivid and long-lasting color results, while maintaining good cosmetic properties (e.g., pleasant feel, smoothness, softness and ease of disentangling) of keratinous materials.
[0021] These and other features and advantages of the present invention will become more apparent to one of ordinary skill in the art from the detailed description herein.DETAILED DESCRIPTION OF THE INVENTION
[0022] It is to be understood by one of ordinary skill in the art that the present discussion is a description of exemplary embodiments only and is not intended as limiting the broader aspects of the present invention. Unless clearly indicated to the contrary, each aspect so described may be combined with any other aspect (s) , especially any feature indicated as being preferred or advantageous may be combined with any other feature (s) indicated as being preferred or advantageous.
[0023] All terms used in the present invention, including technical and scientific terms, have the meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, unless otherwise defined. By means of further guidance, term definitions are included to better appreciate the teaching of the present invention. In case of conflict, the present invention, including definitions, will control.
[0024] The singular forms “a” , “an” and “the” as used herein include plural referents, unless the context clearly dictates otherwise.
[0025] Unless specified otherwise, the recitation of numerical end points includes all numbers and fractions subsumed within the respective ranges, as well as the recited end points.
[0026] The terms “comprising” , “comprises” and “comprised of” as used herein are synonymous with “including” , “includes” , “containing” or “contains” , are inclusive or open-ended and do not exclude additional, non-recited components, members, elements or method steps. The term “consisting of” excludes any element, ingredient, member or method step not specified.
[0027] When amounts, concentrations, dimensions and other parameters are expressed in the form of a range, a preferable range, an upper limit value, a lower limit value or preferable upper and limit values, it should be understood that any ranges obtainable by combining any upper limit or preferable value with any lower limit or preferable value are also specifically disclosed, irrespective of whether the obtained ranges are clearly mentioned in the context.
[0028] The term “about” or synonymies used herein in connection with a numerical value refers to the numerical value ±10%, preferably ±5%. All numerical values herein should be interpreted as being modified by the term “about” .
[0029] The term “keratinous material” as used herein includes hair, nails (e.g., fingernails and / or toenails) , wool, furs, and feathers; preferably is understood to be human hairs and human nails, especially fingernails and toenails; and more preferably is understood to be human hairs.
[0030] The term “coloring keratinous material” or similar expressions as used herein refers to changing color of the keratinous material, and the changed color may be lighter or darker than the original color.
[0031] For the purposes of the present invention, the term “ready-to-use composition” refers to a composition which is intended to be applied immediately to the keratin materials and may be resulted from the extemporaneous mixing of two or more compositions.
[0032] The term “multi-compartment kit” is also known as multi-component kit in the art.
[0033] The term “room temperature” as used herein refers to 25 ± 2℃.
[0034] The term “C1-Cn alkyl” as used herein refers to a monovalent group, which contains from 1 to n carbons atoms, is a radical of an alkane, and includes linear and branched groups. Examples of alkyl groups include, but not limiting to, methyl, ethyl, propyl, isopropyl, n-butyl, isobutyl, sec-butyl, tert-butyl, n-pentyl and isomers thereof, n-hexyl and isomers thereof, n-heptyl and isomers thereof, n-octylene and isomers thereof, and the like.
[0035] The term “C1-Cn alkylene” as used herein refers to a divalent group, which contains 1 to n carbons atoms, is a radical of an alkane, and includes linear and branched groups. Examples of alkylene groups include, but not limiting to, methylene, ethylene, propylene, isopropylene, n-butylene, isobutylene, sec-butylene, tert-butylene, n-pentylene and isomers thereof, n-hexylene and isomers thereof, n-heptylene and isomers thereof, n-octylene and isomers thereof, and the like.
[0036] The term “C6-Cn aryl” as used herein used alone or as part of a larger moiety -refers to monocyclic, bicyclic and tricyclic ring systems in which the monocyclic ring system is aromatic or at least one of the rings in a bicyclic or tricyclic ring system is aromatic. The bicyclic and tricyclic ring systems include benzofused 2-3 membered carbocyclic rings. Exemples of aryl groups include, but not limiting to, phenyl, indenyl, naphthalenyl, tetrahydronaphthyl, tetrahydroindenyl, tetrahydroanthracenyl, and the like.
[0037] The term “C2-C20 alkenyl” as used herein refers to hydrocarbyl groups having 2 to 20 carbon atoms and at least one unit of ethylenic unsaturation. The alkenyl group can be linear, branched or cyclic, and may optionally be substituted with one or more halogens. The term “alkenyl” also encompasses radicals having “cis” and “trans” configurations, or alternatively, “E” and “Z” configurations, as appreciated by one of ordinary skill in the art. Examples of alkenyl groups include, but not limiting to: -CH═CH2; -CH═CHCH3; -CH2CH═CH2; -C (═CH2) (CH3) ; -CH═CHCH2CH3; -CH2CH═CHCH3; -CH2CH2CH═CH2; -CH═C (CH3) 2; -CH2C (═CH2) (CH3) ; -C (═CH2) CH2CH3; -C (CH3) ═CHCH3; -C (CH3) CH═CH2; -CH═CHCH2CH2CH3; -CH2CH═CHCH2CH3; -CH2CH2CH═CHCH3; -CH2CH2CH2CH═CH2; -C (═CH2) CH2CH2CH3; -C (CH3) ═CHCH2CH3; -CH (CH3) CH═CHCH; -CH (CH3) CH2CH═CH2; -CH2CH═C (CH3) 2; 1-cyclopent-1-enyl; 1-cyclopent-2-enyl; 1-cyclopent-3-enyl; 1-cyclohex-1-enyl; 1-cyclohex-2-enyl; and 1-cyclohexyl-3-enyl.
[0038] Ready-to-use composition
[0039] In a first aspect, the present invention provides a ready-to-use composition for oxidation coloring of keratinous materials, for example human keratinous materials, in particular human hairs, comprising, based on the total weight of the ready-to-use composition:
[0040] (a) at least 0.3 wt. %of at least one hydrolyzed protein with a molecular weight of 600 to 2,500 Daltons (Da) ;
[0041] (b) at least one fatty substance;
[0042] (c) at least one oxidation dye precursor;
[0043] (d) at least one alkalizing agent; and
[0044] (e) at least one oxidizing agent.
[0045] The ready-to-use composition of the present invention is water-based; in other words, in addition to other ingredients, water is contained in the composition as an important ingredient. For example, water is present in the ready-to use composition in an amount of 45-95 wt. %, e.g., 55-90 wt. %, or 65-88 wt. %, such as 45, 46, 48, 50, 52, 54, 56, 58, 60, 62, 64, 66, 68, 70, 72, 74, 76, 78, 80, 82, 84, 86, 88, 90, 92, 94 wt. %, or any ranges between two above-listed values, based on the total weight of the ready-to-use composition.
[0046] (a) Hydrolyzed protein
[0047] The ready-to-use composition of the present invention comprises, as a vitally important ingredient, at least one hydrolyzed protein, which has a molecular weight of 600 to 2,500 Da, and is present in an amount of at least 0.3 wt. %based on the total weight of the ready-to-use composition. It should be noted that, in the context of the present invention, the amount of the hydrolyzed protein refers to the amount of active matters of hydrolyzed protein.
[0048] The term “hydrolyzed protein” in the context of the present invention refers to a hydrolysis product of homogeneous or heterogeneous proteins, or their respective components, derivatives or combinations thereof, from sources including, but not limiting to, plants and their respective components, seeds, animal bones, connective tissue, animal keratin, bovine and porcine collagen, human hair, wool, silk, elastin, reticulin, milk, egg, wheat, corn, soya, oat, casein, albumin, or any collagenous or keratious substance, or derivatives thereof.
[0049] Hydrolyzed proteins are usually used in the form of an aqueous solution in hair care products such as shampoos, hair conditioners, and the like. In general, a low concentration of active matters of hydrolyzed proteins is sufficient to achieve the desired care effects (e.g., moisturizing, protecting, or repairing) , and a relatively high concentration of active matters is barely employed in the industry of the hair treatment. For example, shampoos utilize relatively less hydrolyzed proteins, since a high concentration of hydrolyzed proteins tends to adversely affect foam characteristics of shampoos, and excess hydrolyzed proteins are merely washed away during rinsing. No report mentions that hydrolyzed proteins can be used in hair dyeing products, let alone a high concentration of hydrolyzed proteins in hair dyeing products.
[0050] The present inventors have surprisingly found that, when the hydrolyzed protein with a specific molecular weight of 600 to 2, 500 Da is used in the ready-to-use composition for oxidation coloring in a high concentration of at least 0.3%by weight of the total weight of the ready-to-use composition, this oxidative coloring system can significantly improve the quality and retentivity of the hair colorations (i.e., providing a higher color vibrancy and higher color retentivity or color fastness) without a post-treatment, while maintaining good cosmetic properties (e.g., pleasant feel, smoothness, softness, and ease of disentangling) of keratinous materials. In particular, the presence of such a specific amount of hydrolyzed protein with the specific molecular weight is especially useful for improving the color retentivity or color fastness of oxidation coloring. It also has been found that the molecular weight and dosage of the hydrolyzed protein, outside the aforesaid specified ranges, cannot impart the oxidation coloring system with an ability of significantly improving the color longevity or color fastness of hair colorations.
[0051] With respect to the ready-to-use composition of the present invention, there is no particular restriction on the source of protein, protein components or derivatives, and the above-mentioned sources may also be used in the present invention, provided that its hydrolysis product has the desired physical properties as described above (i.e., the specified molecular weight and dosage) . In particular, protein sources include, but not limiting to, soy, wheat, pea, rice, sesame, silk, keratin, fish collagen, pearl, milk, and their respective components, derivatives or combinations thereof.
[0052] The hydrolyzed protein may or may not be chemically modified. The term “chemically unmodified” as used herein means no further chemically modification after hydrolysis, and, likewise, “chemically modified” means that further chemically modification (s) is included after hydrolysis. Suitable chemical modifications include, for example, silylation, acylation, cationization, ethyl esterification, and the like, and thus chemically-modified hydrolyzed proteins include silylated peptide derivatives (i.e., derivatives bonded with a silyl group at the N-terminal of the peptide, with a thermal reaction characteristic) , acylated peptide derivatives (i.e., derivatives bonded with an alkyl group at the N-terminal of the peptide) , cationized peptide derivatives (i.e., derivatives bonded with a quaternary ammonium group at the N-terminal of the peptide) , ethyl esterified peptide derivatives (i.e., derivatives where the C-terminal of the peptide was ethyl esterified) , and the like. It is preferable to use unmodified hydrolyzed proteins. It is more preferable to use unmodified hydrolyzed proteins from sources including, but not limiting to, soy, wheat, pea, rice, sesame, silk, keratin, fish collagen, pearl or milk, preferably wheat, silk, keratin (e.g., sheep wool) , fish collagen (e.g., fish scale) , pearl (e.g., pearl shell) or milk, more preferably keratin, and most preferably sheep wool.
[0053] The hydrolyzed proteins suitable for use in the present invention may be partially hydrolyzed proteins, which refer to proteins that have been subject to partial hydrolysis and which may comprise protein fragments, polypeptides, oligopeptides and / or amino acids. As such, it should be understood that, depending on at least the degree of hydrolysis and the hydrolysis method used, despite using the same protein source, the resultant hydrolyzed proteins may have different compositions and properties. In this regard, the present inventors have found that, if the protein used to produce the hydrolyzed protein is close to those of human keratious materials, especially human hairs, there will be a more significant improvement on the color fastness or color retentivity of oxidation coloring. Accordingly, it is preferable that the hydrolyzed protein comprises 2-18 mol. %of cysteine, preferably 4-10 mol. %of cysteine, more preferably 5-8 mol. %of cysteine, such as 2, 2.5, 3, 3.5, 4, 4.5, 5, 5.5, 6, 6.5, 7, 7.5, 8, 8.5, 9, 9.5, 10, 10.5, 11, 11.5, 12, 12.5, 13, 13.5, 14, 14.5, 15, 15.5, 16, 16.5, 17, 17.5, 18 mol. %, or any ranges between two above-listed values, of cysteine; and / or comprises 2-14 mol. %of serine, preferably 5-13 mol. %of serine, more preferably 8-12 mol. %of serine, such as 2, 2.5, 3, 3.5, 4, 4.5, 5, 5.5, 6, 6.5, 7, 7.5, 8, 8.5, 9, 9.5, 10, 10.5, 11, 11.5, 12, 12.5, 13, 13.5, 14 mol. %, or any ranges between two above-listed values, of serine; and / or comprises 2-12 mol. %of proline, preferably 4-10 mol. %of proline, more preferably 5-8 mol. %of proline, such as 2, 2.5, 3, 3.5, 4, 4.5, 5, 5.5, 6, 6.5, 7, 7.5, 8, 8.5, 9, 9.5, 10, 10.5, 11, 11.5, 12 mol. %, or any ranges between two above-listed values, of proline. In a most preferred embodiment, the hydrolyzed protein is a hydrolyzed keratin produced by hydrolysis of sheep wool and comprising 2-18 mol. %cysteine, 2-14 mol. %serine and 2-12 mol. %of proline. Cysteine, serine and proline may be present in the hydrolyzed keratin in a form of free amino acid or in a form of building unit within the protein or in a form of terminal unit of the hydrolyzed protein.
[0054] The types and amounts of amino acids may be determined using any conventional technical means in the art, for example high performance liquid chromatography (HPLC) .
[0055] The hydrolyzed protein to be added into the ready-to-use composition may be in the form of a solid or an aqueous solution, e.g., a solid product containing 100%powdered active matter, or an aqueous solution product containing 1-50 wt. %active matter, e.g., 3-40 wt. %, such as 1, 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30, 32, 34, 36, 38, 40, 42, 44, 46, 48, 50 wt. %, or any ranges between two above-listed values, active matter.
[0056] The hydrolyzed protein may be prepared using techniques well-known in the art or may be commercially available. For example, hydrolyzed proteins may be prepared from the protein sources as described above using methods including, but not limiting to, acid hydrolysis, alkali hydrolysis, and enzyme hydrolysis using a suitable protease. Commercially available products of hydrolyzed proteins include, but not limiting to, product series under the trademark of Promois, available from SEIWA KASEI Co., Ltd., for example:
[0057] - Promois WG (INCI Name: Hydrolyzed Wheat Protein (and) Water; Mw: 700 Da; Active Matter: 25%; Origin: wheat) ;
[0058] - Promois SERICIN-N (INCI Name: Sericin (or) Hydrolyzed Silk; Mw: 2,000 Da; Active Matter: 100%powder; Origin: silk) ;
[0059] - Promois SILK-1000F (INCI Name: Hydrolyzed Silk (and) Water; Mw: 1,000 Da; Active Matter: 6.5%; Origin: silk) ;
[0060] - Promois SILK-1000PD (INCI Name: Hydrolyzed Silk (and) Water; Mw: 1,000 Da; Active Matter: 6.5%; Origin: silk) ;
[0061] - Promois WK-HSP (INCI Name: Hydrolyzed Keratin; Mw: 1,000 Da; Active Matter: 100% powder; Origin: sheep wool) ;
[0062] - Promois WK-HF (INCI Name: Hydrolyzed Keratin (and) Water; Mw: 1,000 Da; Active Matter: 25%; Origin: sheep wool) ;
[0063] - Promois W-52USP (INCI Name: Hydrolyzed Collagen; Mw: 2,000 Da; Active Matter: 100%powder; Origin: fish scale) ;
[0064] - Promois W-52U (INCI Name: Hydrolyzed Collagen (and) Water; Mw: 2,000 Da; Active Matter: 20%; Origin: fish scale) ;
[0065] - Promois W-42U (INCI Name: Hydrolyzed Collagen (and) Water; Mw: 1,000 Da; Active Matter: 20%; Origin: fish scale) ;
[0066] - Promois PEARL-PF (INCI Name: Hydrolyzed Conchiolin Protein (and) Water; Mw: 600 Da; Active Matter: 3%; Origin: pearl shell) ;
[0067] - Promois BLACK PEARL-F (INCI Name: Hydrolyzed Conchiolin Protein (and) Water; Mw: 600 Da; Active Matter: 3%; Origin: black pearl shell) ;
[0068] - Promois HYDROMILK (INCI Name: Hydrolyzed Milk Protein (and) Water; Mw: 600 Da; Active Matter: 30%; Origin: milk) ;
[0069] - Promois Hydromilk-P (INCI Name: Hydrolyzed Milk Protein; Mw: 600 Da; Active Matter: 100%powder; Origin: milk) .
[0070] The hydrolyzed protein shall be present in the ready-to-use composition of the present invention in an amount of at least 0.3 wt. %; moreover, considering the economic cost of the composition, the hydrolyzed protein is preferably used in an amount of no more than 50 wt. %, for example 0.3-30 wt. %, or 0.3-15 wt. %, or 0.3-5 wt. %, or 0.3-2 wt. %, such as 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50 wt. %, or any ranges between two above-listed values, based on the total weight of the ready-to-use composition.
[0071] The hydrolyzed protein preferably has a molecular weight of 700 to 2,200 Da, preferably 800 to 1,800 Da, more preferably 900 to 1,300 Da, such as 700, 720, 740, 760, 780, 800, 820, 840, 860, 880, 900, 920, 940, 960, 980, 1,000, 1,020, 1,040, 1,060, 1,080, 1,100, 1,150, 1,200, 1,250, 1,300, 1,350, 1,400, 1,450, 1,500, 1,550, 1,600, 1,650, 1,700, 1,750, 1,800, 1,850, 1,900, 1,950, 2,000, 2,050, 2,100, 2,150, 2,200 Da, or any ranges between two above-listed values. The molecular weight may be determined using the molecular weight determination method by size-exclusion chromatography.
[0072] (b) Fatty substance
[0073] The term “fatty substance” used in the context of the present invention refers to organic compounds that are insoluble in water at room temperature under atmospheric pressure (about 760 mmHg) , and have at least one hydrocarbon chain containing at least 6 carbon atoms in their structure. The term “insoluble in water” herein means a water solubility of less than 5%, preferably less than 1%, and more preferably less than 0.1%. The fatty substance is soluble in organic solvents under the same temperature and pressure conditions, such as in chloroform, benzene and the like.
[0074] There is no particular restriction on the fatty substance, and those commonly used in the oxidation coloring systems may also be used in the ready-to-use composition of the present invention. For example, suitable fatty substances include, but not limiting to:
[0075] (i) linear or branched hydrocarbons containing at least 6 carbon atoms, preferably 6 to 35 carbon atoms, such as liquid paraffin, mineral oil or white mineral oil, isoparaffins, petroleum jelly, liquid petroleum jelly, polydecenes, white oils, and mixtures thereof;
[0076] (ii) waxes, such as carnauba wax, candelilla wax, esparto grass wax, paraffin wax, ozokerite, olive wax, rice wax, hydrogenated jojoba wax, beeswaxes or modified beeswaxes (cerabellina) , polyethylene waxes, polyolefin waxes, and mixtures thereof;
[0077] (iii) hydrocarbon-based oils of animal or plant origin, such as perhydrosqualene, liquid triglycerides of fatty acids containing 6 to 30 carbon atoms, for instance triglycerides of heptanoic acid or octanoic acid, caprylic / capric acid triglycerides, for example, sunflower oil, corn oil, soya oil, marrow oil, grapeseed oil, sesame oil, hazelnut oil, apricot oil, macadamia oil, arara oil, castor oil, avocado oil, jojoba oil, shea butter oil, and mixtures thereof;
[0078] (iv) fatty alcohols which are nonoxyalkylenated, saturated or unsaturated, linear or branched and which contain 6 to 30 carbon atoms (e.g., 8 to 30 carbon atoms) , such as cetyl alcohol, stearyl alcohol, cetearyl alcohol, arachidyl alcohol, behenyl alcohol, octyldodecanol, 2-butyloctanol, 2-hexyldecanol, 2-undecylpentadecanol, oleyl alcohol or linoleyl alcohol oils, and the mixtures thereof;
[0079] (v) esters of saturated or unsaturated, linear or branched C1-C26 aliphatic mono-or polyacids, or inorganic mono-or polyacids with saturated or unsaturated, linear or branched C1-C26 aliphatic mono-or polyalcohols, the total carbon number of the esters being preferably greater than or equal to 10, including, for example:
[0080] · monoesters, like dihydroabietyl behenate; octyldodecyl behenate; isocetyl behenate; cetyl lactate; C12-C15 alkyl lactate; isostearyl lactate; lauryl lactate; linoleyl lactate; oleyl lactate; (iso) stearyl octanoate; isocetyl octanoate; octyl octanoate; cetyl octanoate; decyl oleate; isocetyl isostearate; isocetyl laurate; isocetyl stearate; isodecyl octanoate; isodecyl oleate; isononyl isononanoate; isostearyl palmitate; methylacetyl ricinoleate; myristyl stearate; octyl isononanoate; 2-ethylhexyl isononanoate; octyl palmitate; octyl pelargonate; octyl stearate; octyldodecyl erucate; oleyl erucate; ethyl and isopropyl palmitates; 2-ethylhexyl palmitate; 2-octyldecyl palmitate; alkyl myristates, such as isopropyl myristate, butyl myristate, cetyl myristate, 2-octyldodecyl myristate, mirystyl myristate or stearyl myristate; hexyl stearate; butyl stearate; isobutyl stearate; dioctyl malate; hexyl laurate; 2-hexyldecyl laurate; and mixtures thereof;
[0081] · di-or multi-esters, like diethyl sebacate; diisopropyl sebacate; diisopropyl adipate; di-n-propyl adipate; dioctyl adipate; diisostearyl adipate; dioctyl maleate; glyceryl undecylenate; octyldodecyl stearoyl stearate; pentaerythrityl monoricinoleate; pentaerythrityl tetraisononanoate; pentaerythrityl tetrapelargonate; pentaerythrityl tetraisostearate; pentaerythrityl tetraoctanoate; propylene glycol dicaprylate; propylene glycol dicaprate; tridecyl erucate; triisopropyl citrate; triisostearyl citrate; glyceryl trilactate; glyceryl trioctanoate; trioctyldodecyl citrate; trioleyl citratel; propylene glycol dioctanoate; neopentyl glycol diheptanoate; and mixtures thereof;
[0082] · sugar esters formed from monosaccharides, oligosaccharides or polysaccharides with linear or branched, saturated or unsaturated C6-C30 and preferably C12-C22 fatty acids, examples of suitable sugars include sucrose, glucose, galactose, ribose, fucose, maltose, fructose, mannose, arabinose, xylose and lactose, and esters may be, for example, oleates, laurates, palmitates, myristates, behenates, cocoates, stearates, linoleates, linolenates, caprates, arachidonates or mixtures thereof, for instance especially the mixed oleopalmitate, oleostearate and palmitostearate esters.
[0083] The fatty substance used in the present invention may be in a solid or liquid form at room temperature under atmospheric pressure; preferably comprises both solid fatty substance (s) and liquid fatty substance (s) . The solid fatty substance is preferably selected from cetyl alcohol, stearyl alcohol, cetearyl alcohol, arachidyl alcohol, behenyl alcohol, cetyl palmitate, and mixtures thereof; and the liquid fatty substance is preferably selected from liquid paraffin, mineral oil, isoparaffins, liquid petroleum jelly, polydecenes, white oils, oleyl lactate, ethyl palmitate, isopropyl palmitate, 2-ethylhexyl palmitate, isopropyl myristate, butyl myristate, hexyl stearate, butyl stearate, isobutyl stearate, hexyl laurate, caprylic / capric triglyceride, decyl oleate, octyldodecanol, hydrogenated polyisobutene, pentaerythrityl tetraethylhexanoate, isononyl isononanoate, pentaerythrityl tetraisostearate, oleic acid, and mixtures thereof.
[0084] In a preferred embodiment, the fatty substance is selected from cetearyl alcohol, mineral oil, and mixtures thereof.
[0085] The fatty substance may be present in the ready-to-use composition of the present invention in an amount of 0.1-40 wt. %, for example, 1-30 wt. %, or 2-15 wt. %, or 3-10 wt. %, such as 0.1, 0.5, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40 wt. %, or any ranges between two above-listed values, based on the total weight of the ready-to-use composition.
[0086] (c) Oxidation dye precursor
[0087] There is no particular restriction on the oxidation dye precursor, and those commonly used in oxidation coloring systems may also be used in the ready-to-use compositions of the present invention. The oxidation dye precursors may be divided into oxidation bases and couplers. The ready-to-use composition of the present invention comprises at least one oxidation base, and may further comprise at least one coupler, preferably at least one oxidation base and at least one coupler.
[0088] There is no particular restriction on the oxidation bases, and those commonly used in oxidation coloring systems may also be used in the compositions of the present invention. For example, suitable oxidation bases include, but not limiting to:
[0089] (i) 4, 5-diaminopyrazoles, such as 4, 5-diaminopyrazole, 4, 5-diamino-1-methylpyrazole, 4,5-diamino-1- (2-hydroxyethyl) pyrazole, 4, 5-diamino-1- (4’-chlorobenzyl) pyrazole, 4,5-diamino-1, 3-dimethylpyrazole, 4, 5-diamino-3-methyl-1-phenylpyrazole, 4, 5-diamino-1-methyl-3-phenylpyrazole, 4-amino-1, 3-dimethyl-5-hydrazinopyrazole, 1-benzyl-4, 5-diamino-3-methylpyrazole, 4, 5-diamino-3-tert-butyl-1-methylpyrazole, 4, 5-diamino-1-tert-butyl-3-methylpyrazole, 4, 5-diamino-1- (β-hydroxyethyl) -3-methylpyrazole, 4, 5-diamino-1-ethyl-3-methylpyrazole, 4, 5-diamino-1-ethyl-3- (4’-methoxyphenyl) pyrazole, 4, 5-diamino-1-ethyl-3-hydroxymethylpyrazole, 4, 5-diamino-3-hydroxymethyl-1-methylpyrazole, 4, 5-diamino-3-hydroxymethyl-1-isopropylpyrazole, 4, 5-diamino-3-methyl-1-isopropylpyrazole, and 4-amino-5- (2’-aminoethyl) amino-1, 3-dimethylpyrazole, and addition salts thereof;
[0090] (ii) para-phenylenediamines, such as para-phenylenediamine, para-toluylenediamine, 2-β-hydroxyethyl-para-phenylenediamine, 2-methoxymethyl-para-phenylenediamine, 2-γ-hydroxypropyl-para-phenylenediamine, 2-chloro-para-phenylenediamine, 2, 3-dimethyl-para-phenylenediamine, 2, 6-dimethyl-para-phenylenediamine, 2, 6-diethyl-para-phenylenediamine, 2, 5-dimethyl-para-phenylenediamine, N, N-dimethyl-para-phenylenediamine, N, N-diethyl-para-phenylenediamine, N, N-dipropyl-para-phenylenediamine, 4-amino-N, N-diethyl-3-methylaniline, 4-N, N-bis (β-hydroxyethyl) amino-2-methylaniline, N, N-bis (β-hydroxyethyl-para-phenylenediamine, 4-N, N-bis (β-hydroxyethyl) amino-2-chloroaniline, 2-fluoro-para-phenylenediamine, 2-isopropyl-para-phenylenediamine, N- (β-hydroxypropyl) -para-phenylenediamine, 2-hydroxymethyl-para-phenylenediamine, N, N-dimethyl-3-methyl-para-phenylenediamine, N-ethyl-N- (β-hydroxyethyl) -para-phenylenediamine, N- (β, γ-dihydroxypropyl) -para-phenylenediamine, N- (4’-aminophenyl) -para-phenylenediamine, N-phenyl-para-phenylenediamine, 2-β-hydroxyethyloxy-para-phenylenediamine, 2-β-acetylaminoethyloxy-para-phenylenediamine, N- (β-methoxyethyl) -para-phenylenediamine, and 2-methyl-1-N-β-hydroxyethyl-para-phenylenediamine, and addition salts thereof;
[0091] (iii) double bases, such as N, N’-bis (β-hydroxyethyl) -N, N’-bis (4’-aminophenyl) -1, 3-diamino-propanol, N, N’-bis (β-hydroxyethyl) -N, N’-bis (4’-aminophenyl) ethylenediamine, N, N’-bis (4-aminophenyl) tetramethylenediamine, N, N’-bis (β-hydroxyethyl) -N, N’-bis (4-aminophenyl) tetramethylenediamine, N, N’-bis (4-methyl-aminophenyl) tetramethylenediamine, N, N’-bis (ethyl) -N, N’-bis (4’-amino-3’-methylphenyl) ethylenediamine, and 1, 8-bis (2, 5-diaminophenoxy) -3, 5-dioxaoctane, and addition salts thereof;
[0092] (iv) para-aminophenols, such as para-aminophenol, 4-amino-3-methylphenol, 4-amino-3-fluorophenol, 4-amino-3-hydroxymethylphenol, 4-amino-2-methylphenol, 4-amino-2-hydroxymethylphenol, 4-amino-2-methoxymethylphenol, 4-amino-2-aminomethylphenol, and 4-amino-2- (β-hydroxyethylaminomethyl) phenol, and addition salts thereof;
[0093] (v) ortho-aminophenols, such as 2-aminophenol, 2-amino-1-hydroxy-5-methylbenzene, 2-amino-1-hydroxy-6-methylbenzene, and 5-acetamido-2-aminophenol, and addition salts thereof;
[0094] (vi) pyridine derivatives, such as 2, 5-diaminopyridine, 2- (4-methoxyphenyl) amino-3-amino-pyridine, 2, 3-diamino-6-methoxypyridine, 2- (β-methoxyethyl) amino-3-amino-6-methoxypyridine, and 3, 4-diaminopyridine, and addition salts thereof;
[0095] (vii) pyrimidine derivatives, such as 2, 4, 5, 6-tetraaminopyrimidine, 4-hydroxy-2, 5, 6-triaminopyrimidine, 2-hydroxy-4, 5, 6-triaminopyrimidine, 2, 4-dihydroxy-5, 6-diaminopyrimidine, and 2, 5, 6-triaminopyrimidine, and addition salts thereof;
[0096] (viii) pyrazolopyrimidine derivatives, such as pyrazolo [1, 5-a] pyrimidine-3, 7-diamine, 2, 5-dimethylpyrazolo [1, 5-a] pyrimidine-3, 7-diamine, pyrazolo [1, 5-a] pyrimidine-3, 5-diamine, 2, 7-dimethylpyrazolo [1, 5-a] pyrimidine-3, 5-diamine, 3-aminopyrazolo [1, 5-a]pyrimidin-7-ol, 3-aminopyrazolo [1, 5-a] pyrimidin-5-ol, 2- (3-aminopyrazolo [1, 5-a]pyrimidin-7-ylamino) ethanol, 2- (7-aminopyrazolo [1, 5-a] pyrimidin-3-ylamino) ethanol, 2- [(3-aminopyrazolo [1, 5-a] pyrimidin-7-yl) (2-hydroxyethyl) amino] ethanol, 2- [ (7-aminopyrazolo [1, 5-a] pyrimidin-3-yl) (2-hydroxyethyl) amino] ethanol, 5, 6-dimethylpyrazolo [1, 5-a] pyrimidine-3, 7-diamine, 2, 6-dimethylpyrazolo [1, 5-a]pyrimidine-3, 7-diamine, 2, 5, N7, N7-tetramethylpyrazolo [1, 5-a] pyrimidine-3, 7-diamine, and 3-amino-5-methyl-7-imidazolylpropylaminopyrazolo [1, 5-a] pyrimidine, and addition salts thereof,
[0097] (ix) pyrazolones, such as diamino-N, N-dihydropyrazolopyrazolones, 2, 3-diamino-6, 7-dihydro-1H, 5H-pyrazolo [1, 2-a] pyrazol-1-one, 2-amino-3-ethylamino-6, 7-dihydro-1H, 5H-pyrazolo [1, 2-a] pyrazol-1-one, 2-amino-3-isopropylamino-6, 7-dihydro-1H, 5H-pyrazolo [1, 2-a] pyrazol-1-one, 2-amino-3- (pyrrolidin-1-yl) -6, 7-dihydro-1H, 5H-pyrazolo [1, 2-a] pyrazol-1-one, 4, 5-diamino-1, 2-dimethyl-1, 2-dihydropyrazol-3-one, 4, 5-diamino-1, 2-diethyl-1, 2-dihydropyrazol-3-one, 4, 5-diamino-1, 2-di- (2-hydroxyethyl) -1, 2-dihydropyrazol-3-one, 2-amino-3- (2-hydroxyethyl) amino-6, 7-dihydro-1H, 5H-pyrazolo [1, 2-a] pyrazol-1-one, 2-amino-3-dimethylamino-6, 7-dihydro-1H, 5H-pyrazolo [1, 2-a] pyrazol-1-one, 2, 3-diamino-5, 6, 7, 8-tetrahydro-1H, 6H-pyridazino [1, 2-a] pyrazol-1-one, 4-amino-1, 2-diethyl-5- (pyrrolidin-1-yl) -1, 2-dihydropyrazol-3-one, 4-amino-5- (3-dimethylaminopyrrolidin-1-yl) -1, 2-diethyl-1, 2-dihydropyrazol-3-one, and 2, 3-diamino-6-hydroxy-6, 7-dihydro-1H, 5H-pyrazolo [1, 2-a]pyrazol-1-one, and addition salts thereof.
[0098] Suitable addition salts for use in the present invention are acid addition salts, for example, hydrochlorides, hydrobromides, sulfates, citrates, succinates, tartrates, lactates, acetates, alkyl sulfates, or alkyl sulfonates. In a preferred embodiment, p-toluylenediamine sulfate is used as the oxidation base.
[0099] The oxidation base may be present in the ready-to-use composition of the present invention in an amount of 0.01-5 wt. %, preferably 0.03-3 wt. %, more preferably 0.05-1.5 wt. %, especially preferably 0.08-0.5 wt. %, such as 0.01, 0.02, 0.04, 0.06, 0.08, 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, 1, 1.2, 1.4, 1.6, 1.8, 2, 2.2, 2.4, 2.6, 2.8, 3, 3.2, 3.4, 3.6, 3.8, 4, 4.2, 4.4, 4.6, 4.8, 5 wt.%, or any ranges between two above-listed values, based on the total weight of the ready-to-use composition.
[0100] Further or optionally, in order to adjust the color shade, at least one coupler may be used in the ready-to-use composition of the present invention. There is no particular restriction on the couplers, and those commonly used in oxidation coloring systems may also be used in the ready-to-use composition of the present invention. Suitable couplers include, but not limiting to: meta-aminophenols, meta-phenylenediamines, meta-diphenols, naphthols, and heterocyclic couplers such as indole derivatives, indoline derivatives, sesamol and its derivatives, pyridine derivatives, pyrazolotriazole derivatives, pyrazolones, indazoles, benzimidazoles, benzothiazoles, benzoxazoles, 1, 3-benzodioxoles, quinolines, and benzomorpholines, as well as addition salts (preferably acid addition salts) thereof.
[0101] Suitable acid addition salts include, for example, hydrochlorides, hydrobromides, sulfates, citrates, succinates, tartrates, lactates, acetates, alkyl sulfates, or alkyl sulfonates.
[0102] Specific examples of couplers include, but not limiting to: 2, 4-diaminophenoxyethanol, 3-amino-2-chloro-6-methylphenol, 2-hydroxy-4-aminophenoxyethanol, 5-amino-4-chloro-2-methylphenol, 5- (2-hydroxyethyl) -amino-2-methylphenol, 2, 4-dichloro-3-aminophenol, 2-aminophenol, 2, 6-bis- (2’-hydroxyethylamino) -1-methylbenzene, 2- ( {3- [ (2-hydroxyethyl) amino] -4-methoxy-5-methylphenyl} amino) ethanol, 2- ( {3- [ (2-hydroxyethyl) amino] -2-methoxy-5-methylphenyl} -amino) ethanol, 2- ( {3- [ (2-hydroxyethyl) amino] -4, 5-dimethylphenyl} amino) ethanol, 3-amino-4- (2-methoxyethoxy) -5-methylphenylamine, 1-amino-3-bis- (2-hydroxyethyl) aminobenzene, 2, 4-diamino-1- (β-hydroxyethyloxy) benzene, 2-methyl-5-aminophenol ( “p-amino-o-cresol” , 4-amino-2-hydroxytoluene) , 2-amino-5-ethylphenol, 5-N- (β-hydroxyethyl) amino-2-methylphenol, 3-aminophenol (m-aminophenol) , 2-amino-4- (β-hydroxyethylamino) -1-methoxybenzene (2-amino-4-hydroxyethylaminoanisole) , 1, 3-dihydroxybenzene (resorcinol) , 1, 3-dihydroxy-2-methylbenzene (2-methylresorcinol) , 4-chloro-1, 3-dihydroxybenzene, 1-naphthol, 1, 5-dihydroxynaphthalene, 2, 7-dihydroxynaphthalene, 1, 7-dihydroxynaphthalene, 1, 8-dihydroxynaphthalene, 1, 3-diaminobenzene, 1, 3-bis (2, 4-diaminophenoxy) propane, 2- (1, 3-benzodioxol-5-ylamino) ethanol, sesamol, 1-amino-2-methoxy-4, 5-methylenedioxybenzene, α-naphthol, 6-hydroxyindole, 4-hydroxyindole, 7-hydroxyindole, 4-hydroxy-N-methylindole, 4-hydroxyindoline, 6-hydroxyindoline, 7-hydroxyindoline 2, 6-dihydroxy-4-methylpyridine, 3-amino-2-methylamino-6-methoxypyridine, 2, 6-dihydroxy-3, 4-dimethylpyridine, 3, 5-diamino-2, 6-dimethoxypyridine, 1H-3-methylpyrazol-5-one, 1-phenyl-3-methylpyrazol-5-one, 2-amino-3-hydroxypyridine, 3, 6-dimethylpyrazolo- [3, 2-c] -1, 2, 4-triazole, 2, 6-dimethylpyrazolo- [1, 5-b] -1, 2, 4-triazole, and 6-hydroxybenzomorpholine, as well as addition salts (preferably acid addition salts) thereof.
[0103] In a preferred embodiment, the coupler is selected from resorcinol, m-aminophenol, p-amino-o-cresol, 2, 4-diaminophenoxyethanol 2HCl, and mixtures thereof.
[0104] The coupler may be present in the ready-to-use composition of the present invention in an amount of 0.01-5 wt. %, preferably 0.03-3 wt. %, more preferably 0.05-1.5 wt. %, especially preferably 0.06-0.5 wt. %, such as 0, 0.02, 0.04, 0.06, 0.08, 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, 1, 1.1, 1.2, 1.3, 1.4, 1.5, 1.6, 1.7, 1.8, 1.9, 2, 2.1, 2.2, 2.3, 2.4, 2.5, 2.6, 2.7, 2.8, 2.9, 3, 3.1, 3.2, 3.3, 3.4, 3.5, 3.6, 3.7, 3.8, 3.9, 4, 4.1, 4.2, 4.3, 4.4, 4.5, 4.6, 4.7, 4.8, 4.9, 5 wt. %, or any ranges between two above-listed values, based on the total weight of the ready-to-use composition.
[0105] The oxidation dye precursor including the oxidation base and the coupler may be present in the ready-to-use composition of the present invention in an amount of 0.01-8 wt. %, preferably 0.05-5 wt. %, more preferably 0.1-2 wt. %, especially preferably 0.12-0.5 wt. %, such as 0.01, 0.02, 0.04, 0.06, 0.08, 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, 1, 1.2, 1.4, 1.6, 1.8, 2, 2.2, 2.4, 2.6, 2.8, 3, 3.2, 3.4, 3.6, 3.8, 4, 4.2, 4.4, 4.6, 4.8, 5, 5.2, 5.4, 5.6, 5.8, 6, 6.2, 6.4, 6.6, 6.8, 7, 7.2, 7.4, 7.6, 7.8, 8 wt. %, or any ranges between two above-listed values, based on the total weight of the ready-to-use composition.
[0106] Optionally, the ready-to-use composition of the present invention may also comprise at least one direct dye that may for example be selected from nitrobenzene dyes, azo direct dyes, methine direct dyes, and addition salts thereof, and / or at least one pigment. These direct dyes may be of nonionic, anionic or cationic nature.
[0107] (d) Alkalizing agent
[0108] The ready-to-use composition of the present invention should have a pH in the range from 7.0 to 11.5, preferably 8.0 to 11.0, more preferably 8.5 to 10.5, and particularly preferably 9.0 to 10.0, in each case measured at 20℃. At these pH values, the outer keratin fiber layer opens optimally to absorb the oxidation dye precursors, and the desired effect of the peroxide compound, i.e. destroying the natural melanin of the keratin fiber and catalyzing the reaction of the dye precursors with each other, is optimally achieved. For this reason, the ready-to-use composition of the present invention comprises at least one alkalizing agent.
[0109] There is no particular restriction on the alkalizing agent, and those commonly used in oxidation coloring systems may also be used in the ready-to-use composition of the present invention. Suitable alkalizing agent include, but not limiting to:
[0110] (i) aqueous ammonia, which may for example have a concentration of 10 to 35 volume percent, such as 20 to 30 volume percent, or 25 volume percent;
[0111] (ii) alkanolamines, such as primary amines with a C2-6 alkyl base body which carries at least one hydroxyl group, for example, 2-aminoethan-1-ol (monoethanolamine) , 3-aminopropan-1-ol, 4-aminobutan-1-ol, 5-aminopentan-1-ol, 1-aminopropan-2-ol, 1-aminobutan-2-ol, 1-aminopentan-2-ol, 1-aminopentan-3-ol, 1-aminopentan-4-ol, 3-amino-2-methylpropan-1-ol, 1-amino-2-methylpropan-2-ol, 3-aminopropan-1, 2-diol, 2-amino-2-methylpropan-1, 3-diol;
[0112] (iii) basic amino acids, such as L-arginine, D-arginine, D, L-arginine, L-lysine, D-lysine, and D, L-lysine; and
[0113] (iv) inorganic alkalizing agents, including, for example:
[0114] - alkaline earth or alkali metal hydroxides, such as sodium hydroxide, and potassium hydroxide;
[0115] - alkaline earth or alkali metal metasilicates, such as sodium metasilicate;
[0116] - alkaline earth or alkali metal phosphates;
[0117] - alkaline earth or alkali metal hydrogen phosphates, and
[0118] - alkali metal carbonates and bicarbonates, such as sodium carbonate and bicarbonate, and potassium carbonate and bicarbonate;
[0119] and any combination thereof.
[0120] There is no particular restriction on the amount of the alkalizing agent, as long as the aforesaid pH of the ready-to-use composition may be satisfied. For example, the alkalizing agent may be present in the ready-to-use composition of the present invention in an amount of 0.1-20 wt. %, e.g., 1-15 wt. %, or 1.5-10 wt. %, such as 0.1, 0.5, 1, 1.5, 2, 2.5, 3, 3.5, 4, 4.5, 5, 5.5, 6, 6.5, 7, 7.5, 8, 8.5, 9, 9.5, 10, 10.5, 11, 11.5, 12, 12.5, 13, 13.5, 14, 14.5, 15, 15.5, 16, 16.5, 17, 17.5, 18, 18.5, 19, 19.5, 20 wt. %, or any ranges between two above-listed values, based on the total weight of the ready-to-use composition.
[0121] (e) Oxidizing agent
[0122] In order to oxidize the oxidation dye precursor (s) , at least one oxidizing agent should be comprised in the ready-to-use composition.
[0123] There is no particular restriction on the oxidizing agent, and those commonly used in oxidation coloring systems may also be used in the ready-to-use composition of the present invention. Suitable oxidizing agents include, but not limiting to, peroxides such as hydrogen peroxide and urea peroxide; bromates and ferricyanides of alkali metals; and the like. Preferably, the oxidizing agent is hydrogen peroxide, especially aqueous hydrogen peroxide.
[0124] There is no particular restriction on the amount of the oxidizing agent, as long as the oxidation dye precursor (s) can be sufficiently oxidized to express the color. For example, the oxidizing agent may be present in the ready-to-use composition of the present invention in an amount of 0.1-12 wt. %, e.g., 2-10 wt. %, such as 0.1, 0.5, 1, 1.5, 2, 2.5, 3, 3.5, 4, 4.5, 5, 5.5, 6, 6.5, 7, 7.5, 8, 8.5, 9, 9.5, 10, 10.5, 11, 11.5, 12 wt. %, or any ranges between two above-listed values, based on the total weight of the ready-to-use composition.
[0125] Surfactants
[0126] In order to achieve better emulsification of the components and / or better wash-off properties, the ready-to-use composition of the present invention may further comprise a surfactant selected from a zwitterionic surfactant, an anionic surfactant, a nonionic surfactant, a cationic surfactant, and mixtures thereof.
[0127] Zwitterionic surfactant
[0128] The term “zwitterionic surfactant” is understood to mean a class of surfactants comprising both positive and negative charges and these charges neutralize each other under normal environment.
[0129] Exemplary useful zwitterionic surfactants include, but not limiting to, those of formulas (la) , (Ib) , (Ic) and (ld) below:
[0130] wherein R10 is a C8-C18 alkyl; and n is an integer from 1 to 3.
[0131] Particularly useful zwitterionic surfactants include, for example, coco-betaine, cocamidopropyl betaine, lauryl betaine, laurylhydroxy sulfobetaine, lauryldimethyl betaine, cocamidopropyl hydroxysultaine, behenyl betaine, capryl / capramidopropyl betaine, lauryl hydroxysultaine, stearyl betaine, or mixtures thereof. Typically, at least one zwitterionic surfactant is selected from coco betaine, cocamidopropyl betaine, behenyl betaine, capryl / capramidopropyl betaine, lauryl betaine, and mixtures thereof.
[0132] The zwitterionic surfactant (if present) may be contained in the ready-to-use composition of the present invention in an amount of 0.05-5 wt. %, for example 0.1-4 wt. %, or 0.2-2 wt. %, such as 0.05, 0.1, 0.2, 0.4, 0.6, 0.8, 1, 1.2, 1.4, 1.6, 1.8, 2, 2.2, 2.4, 2.6, 2.8, 3, 3.2, 3.4, 3.6, 3.8, 4, 4.2, 4.4, 4.6, 4.8, 5 wt. %, or any ranges between two above-listed values, based on the total weight of the ready-to-use composition.
[0133] Anionic surfactant
[0134] The term “anionic surfactant” is understood to mean a class of surfactants including only an anionic group as ionic or ionizable group. The anionic groups are preferably selected from: -COOH, -COO-, -SO3H, -SO3-, -OSO3H, -OSO3-, -H2PO3, -HPO3-, -PO32-, -H2PO2, -HPO2-, -PO22-, -POH and -PO-.
[0135] Specific examples of suitable anionic surfactants for use in the present invention include, but not limiting to, alkyl sulfates, alkyl ether sulfates, alkylamido ether sulfates, alkylaryl polyether sulfates, monoglyceride sulfates, alkyl sulfonates, alkylamide sulfonates, alkylarylsulfonates, alpha-olefin sulfonates, paraffin sulfonates, alkyl sulfosuccinates, alkyl ether sulfosuccinates, alkylamide sulfosuccinates, alkyl sulfoacetates, acyl sarcosinates, acyl glutamates, alkyl sulfosuccinamates, acyl isethionates and N- (C1-C4) alkyl N-acyltaurates, salts of alkyl monoesters of polyglycoside-polycarboxylic acids, acyl lactylates, salts of D-galactoside uronic acids, salts of alkyl ether carboxylic acids, salts of alkylaryl ether carboxylic acids, salts of alkylamido ether carboxylic acids, and corresponding non-salified forms of all these compounds, wherein the alkyl and acyl groups of all these compounds (unless specified otherwise) generally comprise 8 to 24 carbon atoms and the aryl group generally denotes a phenyl group. These compounds may be oxyethylenated and then preferably comprise 1 to 50 ethylene oxide units, more preferably 5 to 10 ethylene oxide units. The alkyl or acyl groups of all these compounds may be saturated or unsaturated.
[0136] When the anionic surfactant is in a salt form, they may be selected from:
[0137] (i) alkali metal salts, such as a sodium or potassium salt, preferably a sodium salt;
[0138] (ii) ammonium salts;
[0139] (iii) amine salts, in particular amino alcohol salts, such as monoethanolamine salts, diethanolamine salts, triethanolamine salts, monoisopropanolamine salts, diisopropanolamine salts, triisopropanolamine salts, 2-amino-2-methyl-1-propanol salts, 2-amino-2-methyl-1, 3-propanediol salts and tris (hydroxymethyl) aminomethane salts;
[0140] (iv) alkaline-earth metal salts, such as a magnesium salt; and
[0141] (v) mixtures thereof.
[0142] In a preferred embodiment, the anionic surfactant is selected from (C10-C20) alkyl ether sulfates especially sodium laureth-2 sulfate, (C10-C20) alkyl ether phosphatess, (C10-C20) alkyl ether carboxylates, (C10-C20) alkyl sulfonates, (C10-C20) alkyl benzenesulfonates, and mixtures thereof.
[0143] The anionic surfactant (if present) may be contained in the ready-to-use composition of the present invention in an amount of 0.05-5 wt. %, for example 0.1-4 wt. %, or 0.2-2 wt. %, such as 0.05, 0.1, 0.2, 0.4, 0.6, 0.8, 1, 1.2, 1.4, 1.6, 1.8, 2, 2.2, 2.4, 2.6, 2.8, 3, 3.2, 3.4, 3.6, 3.8, 4, 4.2, 4.4, 4.6, 4.8, 5 wt. %, or any ranges between two above-listed values, based on the total weight of the ready-to-use composition.
[0144] Nonionic surfactant
[0145] The term “nonionic surfactant” is understood to mean a class of surfactants consisting of a hydrophilic head group and a hydrophobic tail and carrying no charge.
[0146] Specific examples of suitable nonionic surfactants for use in the present invention include, but not limiting to:
[0147] (i) oxyalkylenated (C8-C24) alkylphenols;
[0148] (ii) saturated or unsaturated, linear or branched, oxyalkylenated or glycerolated C8-C40 alcohols, preferably comprising one or two fatty chains;
[0149] (iii) saturated or unsaturated, linear or branched, oxyalkylenated C8-C30 fatty acid amides;
[0150] (iv) esters of saturated or unsaturated, linear or branched, C8-C30 acids and of polyethylene glycols;
[0151] (v) esters of saturated or unsaturated, linear or branched, C8-C30 carboxylic acids and of sorbitol or of glycerol, which are preferably oxyethylenated;
[0152] (vi) esters of fatty acids and of sucrose;
[0153] (vii) C8-C30 fatty acid esters of sorbitan,
[0154] (viii) (C8-C30) alkyl (poly) glucosides, (C8-C30) alkenyl (poly) glucosides, which are optionally oxyalkylenated (0 to 10 oxyalkylene units) and comprising from 1 to 15 glucose units, (C8-C30) alkyl (poly) glucoside esters;
[0155] (ix) saturated or unsaturated oxyethylenated plant oils;
[0156] (x) condensates of ethylene oxide and / or of propylene oxide;
[0157] (xi) N- (C8-C30) alkylglucamine and N- (C8-C30) acylmethylglucamine derivatives;
[0158] (xii) amine oxides; and
[0159] (xiii) mixtures thereof.
[0160] Nonionic surfactants are preferably selected from alcohols, alpha-diols and (C1-C20) alkylphenols, these compounds being ethoxylated, propoxylated or glycerolated and bearing at least one fatty chain comprising, e.g., 8 to 24 carbon atoms, preferably 8 to 18 carbon atoms, the number of ethylene oxide or propylene oxide units possibly ranging notably from 1 to 200, and the number of glycerol groups possibly ranging notably from 1 to 30.
[0161] Mention may also be made of condensates of ethylene oxide and of propylene oxide with fatty alcohols, ethoxylated fatty amides preferably containing 1 to 30 ethylene oxide units, polyglycerolated fatty amides comprising on average 1 to 5, in particular 1.5 to 4, glycerol groups, ethoxylated fatty acid esters of sorbitan containing 1 to 30 ethylene oxide units, fatty acid esters of sucrose, fatty acid esters of polyethylene glycol, (C6-C24 alkyl) polyglycosides, oxyethylenated plant oils, N- (C6-C24 alkyl) glucamine derivatives, amine oxides such as (C10-C14 alkyl) amine oxides or N- (C10-C14 acyl) aminopropylmorpholine oxides.
[0162] The C8-C30 (preferably C12-C22) fatty acid esters (especially monoesters, diesters and triesters) of sorbitan may be selected from: sorbitan caprylate; sorbitan cocoate; sorbitan isostearate; sorbitan laurate; sorbitan oleate; sorbitan palmitate; sorbitan stearate; sorbitan diisostearate; sorbitan dioleate; sorbitan distearate; sorbitan sesquicaprylate; sorbitan sesquiisostearate; sorbitan sesquioleate; sorbitan sesquistearate; sorbitan triisostearate; sorbitan trioleate; sorbitan tristearate; and mixtures thereof.
[0163] The polyoxyethylenated C8-C30 (preferably C12-C18) fatty acid esters (especially monoesters, diesters and triesters) of sorbitan especially containing 2 to 20 mol of ethylene oxide may be selected from polyoxyethylenated esters of C12-C18 fatty acids, in particular lauric, myristic, cetylic or stearic acid, and of sorbitan especially containing 2 to 30 mol of ethylene oxide, such as: polyoxyethylenated sorbitan monolaurate (4 EO) (Polysorbate-21) , polyoxyethylenated sorbitan monolaurate (20 EO) (Polysorbate-20) , polyoxyethylenated sorbitan monopalmitate (20 EO) (Polysorbate-40) , polyoxyethylenated sorbitan monostearate (20 EO) (Polysorbate-60) , polyoxyethylenated sorbitan monostearate (4 EO) (Polysorbate-61) , polyoxyethylenated sorbitan monooleate (20 EO) (Polysorbate-80) , polyoxyethylenated sorbitan monooleate (5 EO) (Polysorbate-81) , polyoxyethylenated sorbitan tristearate (20 EO) (Polysorbate-65) , polyoxyethylenated sorbitan trioleate (20 EO) (Polysorbate-85) .
[0164] The polyoxyethylenated C8-C30 (preferably C12-C18) fatty acid esters (especially monoesters, diesters, triesters and tetraesters) of sorbitan, especially containing 2 to 20 mol of ethylene oxide, may be selected from polyoxyethylenated esters, especially containing 2 to 20 mol of ethylene oxide of C12-C18 fatty acids, in particular lauric, myristic, cetylic or stearic acid, and of sorbitan, such as:
[0165] (i) the ester polyoxyethylenated with 20 EO of sorbitan and of cocinic acid (PEG-20 Sorbitan Cocoate) ,
[0166] (ii) the polyoxyethylenated esters (especially containing from 2 to 20 EO) of sorbitan and of isostearic acid (such as PEG-2 Sorbitan Isostearate; PEG-5 Sorbitan Isostearate; PEG-20 Sorbitan Isostearate)
[0167] (iii) the polyoxyethylenated esters (especially containing from 2 to 20 EO) of sorbitan and of lauric acid (such as PEG-10 Sorbitan Laurate) ,
[0168] (iv) the polyoxyethylenated esters (especially containing from 2 to 20 EO) of sorbitan and of oleic acid containing 10 oxyethylene groups (such as PEG-6 Sorbitan Oleate; PEG-20 sorbitan oleate) ,
[0169] (v) the polyoxyethylenated esters (especially containing from 3 to 20 EO) of sorbitan and of stearic acid (such as PEG-3 Sorbitan Stearate; PEG-4 Sorbitan Stearate; PEG-6 Sorbitan Stearate) .
[0170] The nonionic surfactant (s) is / are preferably selected from ethoxylated C8-C24 fatty alcohols comprising 1 to 200 ethylene oxide groups, (ethoxylated) C8-C30 fatty acid esters of glycerol or of sorbitol, and mixtures thereof.
[0171] More preferably, the nonionic surfactant (s) is / are selected from ethoxylated C8-C24 fatty alcohols comprising 1 to 200 ethylene oxide groups, preferably 1 to 100 ethylene oxide groups, more preferably 1 to 50 ethylene oxide groups; and specific examples thereof include: CETEARETH-2, CETEARETH-3, CETEARETH-4, CETEARETH-5, CETEARETH-6, CETEARETH-7, CETEARETH-8, CETEARETH-9, CETEARETH-10, CETEARETH-11, CETEARETH-12, CETEARETH-13, CETEARETH-14, CETEARETH-15, CETEARETH-16, CETEARETH-17, CETEARETH-18, CETEARETH-20, CETEARETH-22, CETEARETH-23, CETEARETH-24, CETEARETH-25, CETEARETH-27, CETEARETH-28, CETEARETH-29, CETEARETH-30, CETEARETH-33, CETEARETH-34, CETEARETH-40, CETEARETH-50, CETEARETH-55, CETEARETH-60, CETEARETH-80, CETEARETH-100, CETETH-1, CETETH-2, CETETH-3, CETETH-4, CETETH-5, CETETH-6, CETETH-7, CETETH-10, CETETH-12, CETETH-13, CETETH-14, CETETH-15, CETETH-16, CETETH-17, CETETH-18, CETETH-20, CETETH-23, CETETH-24, CETETH-25, CETETH-30, CETETH-40, CETETH-45, CETETH-150, CETOLETH-2, CETOLETH-4, CETOLETH-5, CETOLETH-6, CETOLETH-10, CETOLETH-11, CETOLETH-15, CETOLETH-18, CETOLETH-20, CETOLETH-22, CETOLETH-24, CETOLETH-25, CETOLETH-30, ISOCETETH-5, ISOCETETH-7, ISOCETETH-10, ISOCETETH-12, ISOCETETH-15, ISOCETETH-20, ISOCETETH-25, ISOCETETH-30, ISOLAURETH-3, ISOLAURETH-6, ISOLAURETH-10, ISOSTEARETH-2, ISOSTEARETH-3, ISOSTEARETH-5, ISOSTEARETH-8, ISOSTEARETH-10, ISOSTEARETH-12, ISOSTEARETH-15, ISOSTEARETH-16, ISOSTEARETH-20, ISOSTEARETH-22, ISOSTEARETH-25, ISOSTEARETH-50, LAURETH-1, LAURETH-2, LAURETH-3, LAURETH-4, LAURETH-5, LAURETH-6, LAURETH-7, LAURETH-8, LAURETH-9, LAURETH-10, LAURETH-11, LAURETH-12, LAURETH-13, LAURETH-14, LAURETH-15, LAURETH-16, LAURETH-20, LAURETH-21, LAURETH-23, LAURETH-25, LAURETH-30, LAURETH-38, LAURETH-40, LAURETH-50, MYRETH-2, MYRETH-3, MYRETH-4, MYRETH-5, MYRETH-10, STEARETH-2, STEARETH-3, STEARETH-4, STEARETH-5, STEARETH-6, STEARETH-7, STEARETH-8, STEARETH-10, STEARETH-11, STEARETH-13, STEARETH-14, STEARETH-15, STEARETH-16, STEARETH-20, STEARETH-21, STEARETH-25, STEARETH-27, STEARETH-30, STEARETH-40, STEARETH-50, STEARETH-80, STEARETH-100, and the like.
[0172] The nonionic surfactant (if present) may be contained in the ready-to-use composition of the present invention in an amount of 0.05-5 wt. %, for example 0.1-4 wt. %, or 0.2-2 wt. %, such as 0.05, 0.1, 0.2, 0.4, 0.6, 0.8, 1, 1.2, 1.4, 1.6, 1.8, 2, 2.2, 2.4, 2.6, 2.8, 3, 3.2, 3.4, 3.6, 3.8, 4, 4.2, 4.4, 4.6, 4.8, 5 wt. %, or any ranges between two above-listed values, based on the total weight of the ready-to-use composition.
[0173] Cationic surfactant
[0174] The term “cationic surfactant” is understood to mean a class of surfactants containing only a positively charged head group and a hydrophobic tail.
[0175] Suitable cationic surfactants for use in the present invention are generally selected from optionally polyoxyalkylenated primary, secondary or tertiary fatty amines, quaternary ammonium salts, and mixtures thereof.
[0176] The fatty amines generally comprise at least one C8-C30 hydrocarbon-based chain. Among the fatty amines that may be used according to the present invention, examples that may be mentioned include stearylamidopropyldimethylamine and distearylamine.
[0177] Examples of the cationic surfactant useful in the present invention may include:
[0178] (i) at least one cationic surfactant of formula (I) ,
[0179] wherein
[0180] - R12, R13 and R14 independently represent a C1-C6 alkyl, a C2-C6 alkenyl or a C2-C6 hydroxyalkyl, such as methyl, ethyl, propyl and butyl, preferably methyl;
[0181] - R15 represents a C8-C28 alkyl, such as C10, C11, C12, C13, C14, C15, C16, C17, C18, C19, C20, C21, C22, C23, C24, C25, C26, C27 alkyls, and
[0182] - X-represents a physiologically compatible anion, such as halogen anion, acetate, citrate, lactate, glycolate, sulfate, phosphate, preferably halogen anion, such as Cl-, Br-,
[0183] (ii) at least one cationic surfactant of formula (II) ,
[0184] wherein
[0185] - R16 represents a C1-C6 alkyl;
[0186] - R17 and R18 are independently a C7-C27 alkyl, preferably a C10-C22 alkyl; and
[0187] - X-represents a physiologically compatible anion, as defined in formula (I) above,
[0188] (iii) at least one cationic surfactant of formula (III) ,
[0189] wherein
[0190] - R19 and R20 independently represent a C1-C6 alkyl, a C2-C6 alkenyl or a C2-C6 hydroxyalkyl;
[0191] - R21 and R22 are independently a C7-C27 alkyl, preferably a C10-C22 alkyl; and
[0192] - X-represents a physiologically compatible anion, as defined in formula (I) above,
[0193] In a preferred embodiment, steartrimonium chloride, which is a specific compound of formula (I) , is used as a cationic surfactant.
[0194] The cationic surfactant (if present) may be present in the ready-to-use composition of the present invention in an amount of 0.05-5 wt. %, for example 0.1-4 wt. %, or 0.2-2 wt. %, such as 0.05, 0.1, 0.2, 0.4, 0.6, 0.8, 1, 1.2, 1.4, 1.6, 1.8, 2, 2.2, 2.4, 2.6, 2.8, 3, 3.2, 3.4, 3.6, 3.8, 4, 4.2, 4.4, 4.6, 4.8, 5 wt. %, or any ranges between two above-listed values, based on the total weight of the ready-to-use composition.
[0195] Chelator
[0196] The ready-to-use composition of the present invention may optionally comprise one or more chelators (or chelating agents) .
[0197] The term “chelator” or “chelating agent” has a definition well-known to one of ordinary skill in the art, and refers to a compound or a mixture of compounds capable of forming a chelate with a metal ion. A chelate is an inorganic complex in which a chelator (or chelating agent) is coordinated to a metal ion, i.e. it forms one or more bonds with the metal ion (formation of a ring including the metal ion) .
[0198] A chelator (or chelating agent) generally comprises at least two electron-donating atoms, which enable the formation of bonds with the metal ion.
[0199] Suitable chelators for use in the present invention include, but not limiting to: (i) carboxylic acids, preferably aminocarboxylic acids; (ii) phosphonic acids, preferably aminophosphonic acids; (iii) polyphosphoric acids, preferably linear polyphosphoric acids; salts and derivatives thereof. The salts are in particular alkali metal, alkaline-earth metal, ammonium or substituted ammonium salts.
[0200] The following compounds may be mentioned as examples of chelators based on carboxylic acids: diethylenetriaminepentaacetic acid (DTPA) ; ethylenediaminedisuccinic acid (EDDS) and trisodium ethylenediaminedisuccinate; ethylenediaminetetraacetic acid (EDTA) , and salts thereof, such as disodium EDTA, and tetrasodium EDTA; ethylenediamine-N, N’-diglutaric acid (EDDG) ; glycinamide-N, N’-disuccinic acid (GADS) ; 2-hydroxypropylenediamine-N, N’-disuccinic acid (HPDDS) ; ethylenediamine-N, N’-bis (ortho-hydroxyphenylacetic acid) (EDDHA) ; N, N’-bis (2-hydroxybenzyl) ethylenediamine-N, N’-diacetic acid (HBED) ; nitrilotriacetic acid (NTA) ; methylglycinediacetic acid (MGDA) ; N-2-hydroxyethyl-N, N-diacetic acid and glyceryliminodiacetic acid; iminodiacetic acid-N-2-hydroxypropylsulfonic acid and aspartic acid-N-carboxymethyl-N-2-hydroxypropyl-3-sulfonic acid; beta-alanine-N, N’-diacetic acid; aspartic acid-N, N’-diacetic acid; aspartic acid-N-monoacetic acid; chelators based on iminodisuccinic acid (IDSA) ; ethanoldiglycine acid; phosphonobutanetricarboxylic acid; and N, N-dicarboxymethylglutamic acid and salts thereof, such as tetrasodium glutamate diacetate (GLDA) .
[0201] The following compounds may be mentioned as examples of chelators based on mono-or polyphosphonic acid: diethylenetriaminepenta (methylenephosphonic acid) (DTPMP) ; ethane-1-hydroxy-1, 1, 2-triphosphonic acid (E1 HTP) ; ethane-2-hydroxy-1, 1, 2-triphosphonic acid (E2HTP) ; ethane-1-hydroxy-1, 1-diphosphonic acid (EHDP) ; ethane-1, 1, 2-triphosphonic acid (ETP) ; ethylenediaminetetramethylenephosphonic acid (EDTMP) ; as well as hydroxyethane-1, 1-diphosphonic acid (HEDP, or etidronic acid) and salts thereof, such as disodium etidronate, and tetrasodium etidronate.
[0202] The following compounds may be mentioned as examples of chelators based on polyphosphoric acid: sodium tripolyphosphate (STP) ; tetrasodium diphosphate; hexametaphosphoric acid; sodium metaphosphate; and phytic acid.
[0203] The chelators are preferably selected from diethylenetriaminepentaacetic acid (DTPA) and salts thereof; ethylenediaminetetraacetic acid (EDTA) and salts thereof; ethylenediaminedisuccinic acid (EDDS) and salts thereof; etidronic acid and salts thereof; methylglycinediacetic acid (MGDA) and salts thereof; N, N-dicarboxymethylglutamic acid and salts thereof (GLDA) ; and mixtures thereof. Among the salts of these compounds, the alkali metal salts and especially the sodium or potassium salts are preferred. The sodium salts are most preferred.
[0204] The chelator (if present) may be contained in the ready-to-use composition of the present invention in an amount of 0.01-4 wt. %, e.g., 0.1-3 wt. %, or 0.5-2 wt. %, such as 0.01, 0.1, 0.2, 0.4, 0.6, 0.8, 1, 1.2, 1.4, 1.6, 1.8, 2, 2.2, 2.4, 2.6, 2.8, 3, 3.2, 3.4, 3.6, 3.8, 4 wt. %, or any ranges between two above-listed values, based on the total weight of the ready-to-use composition.
[0205] Water-soluble organic solvent
[0206] Although the ready-to-use composition of the present invention is water-based, it may also optionally comprise a water-soluble organic solvent. The term “water-soluble solvent” in the context of the present invention refers to a compound that is liquid at room temperature and at atmospheric pressure (760 mmHg) , and it has a solubility of at least 5%in water under these conditions.
[0207] Specific examples of suitable water-soluble organic solvents include, but not limiting to: linear or branched C2-C4 alkanols, such as ethanol and isopropanol; polyols and polyol ethers, such as 2-butoxyethanol, glycerol, propylene glycol, dipropylene glycol, polyethylene glycols, propylene glycol monomethyl ether, diethylene glycol monomethyl ether, and diethylene glycol monoethyl ether; and aromatic alcohols, such as benzyl alcohol or phenoxyethanol; as well as mixtures thereof.
[0208] The water-soluble organic solvent (if present) may be contained in the ready-to-use composition of the present invention in an amount of 0.01-10 wt. %, e.g., 0.1-5 wt. %, or 0.3-2 wt.%, such as 0.01, 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, 1, 1.2, 1.4, 1.6, 1.8, 2, 2.2, 2.4, 2.6, 2.8, 3, 3.2, 3.4, 3.6, 3.8, 4, 4.2, 4.4, 4.6, 4.8, 5, 5.2, 5.4, 5.6, 5.8, 6, 6.2, 6.4, 6.6, 6.8, 7, 7.2, 7.4, 7.6, 7.8, 8, 8.2, 8.4, 8.6, 8.8, 9, 9.2, 9.4, 9.6, 9.8, 10 wt. %, or any ranges between two above-listed values, based on the total weight of the ready-to-use composition.
[0209] Adjuvant
[0210] The ready-to-use composition of the present invention may further comprise one or more optional adjuvants, which are conventionally used in oxidation coloring systems so as to impart improved properties to the composition and which include, but not limiting to, a tackifier, an antidandruff agent, a vitamin and provitamin, a preservative, a plasticizer, an acidifying agent, a thickener, a fragrance, a reducing agent, and the like. Additives may be used in such combination and proportions as desired, provided that they do not adversely affect the nature and essential properties of the ready-to-use composition.
[0211] Specific examples of reducing agents include, but not limiting to: sulfites, such as sodium sulfite and potassium sulfite; bisulfites, such as sodium bisulfite and potassium bisulfite; ascorbic acid; isoascorbic acid; dehydoascorbic acid; and the like.
[0212] Specific examples of acidifying agents include, but not limiting to: dipicolinic acid, citric acid, acetic acid, malic acid, lactic acid, tartaric acid, hydrochloric acid, phosphoric acid, pyrophosphoric acid and salts thereof, benzoic acid and salts thereof, 1-hydroxyethane-1, 1-diphosphonic acid, ethylenediaminetetracetic acid and salts thereof, sulfuric acid, and mixtures thereof.
[0213] If present, each additive is present in the ready-to-use composition in an amount of no more than 5 wt. %, preferably no more than 3 wt. %, more preferably no more than 1 wt. %, such as no more than 0.5 wt. %, based on the total weight of the ready-to-use composition. If present, all additives are present in the ready-to-use composition in a total amount of no more than 8 wt.%, preferably no more than 7 wt. %, more preferably no more than 6 wt. %, such as no more than 5 wt. %, no more than 4 wt. %, no more than 3 wt. %, no more than 2 wt. %, based on the total weight of the ready-to-use composition.
[0214] Multi-compartment kit
[0215] In a second aspect, the present invention provides a multi-compartment kit for oxidation coloring of keratinous materials, for example human keratinous materials, in particular human hair, comprising:
[0216] - a first compartment, which contains an agent comprising at least 0.3 wt. %of at least one hydrolyzed protein with a molecular weight of 600 to 2, 500 Da, at least one oxidation dye precursor, at least one fatty substance, and at least one alkalizing agent; and
[0217] - a second compartment, which contains an agent comprising at least one oxidizing agent, and optionally at least one fatty substance that is same or different from the at least one fatty substance in the first compartment,
[0218] wherein each amount is based on the total weight of a mixture of the agents in the first and second compartments obtained immediately before use.
[0219] In addition to the first and second compartments, the multi-compartment kit of the present invention may comprise further compartments which contain ingredient (s) capable of boosting the coloration of keratinous materials or conditioning / caring the keratinous materials. Alternatively, the multi-compartment kit of the present invention may consist of only two compartments, and the ingredient (s) capable of boosting the coloration of keratinous materials or conditioning / caring the keratinous materials may be optionally contained any of these two compartments.
[0220] It should be noted that the hydrolyzed protein is generally present in the agent of the first compartment, and should be separated from the agent containing the oxidizing agent, since the presence of the oxidizing agent will lead to a further hydrolysis of the hydrolyzed protein and impose an adverse impact on the activity of the hydrolyzed protein.
[0221] In addition to those ingredients as described above, the agent in the first compartment may further comprise:
[0222] - a surfactant selected from a zwitterionic surfactant, an anionic surfactant, a nonionic surfactant, a cationic surfactant, and mixtures thereof; preferably selected from a nonionic surfactant, a cationic surfactant, and mixtures thereof, and more preferably a mixture of a nonionic surfactant and a cationic surfactant; and / or
[0223] - a water-soluble organic solvent; and / or
[0224] - a chelator; and / or
[0225] - at least one adjuvant, such as a reducing agent, and a fragrance,
[0226] wherein these substances have the same definitions as described for the ready-to-use composition of the first aspect.
[0227] The agent in the first compartment preferably has a pH value of 7.0 to 12.0, preferably 8.0 to 11.0, and more preferably 9.0 to 10.5, such as 7, 7.2, 7.4, 7.6, 7.8, 8, 8.2, 8.4, 8.6, 8.8, 9, 9.2, 9.4, 9.6, 9.8, 10, 10.2, 10.4, 10.6, 10.8, 11, 11.2, 11.4, 11.6, 11.8, 12, or any ranges between two above-listed values.
[0228] In addition to those ingredients as described above, the agent in the second compartment may further comprise:
[0229] - a surfactant selected from a zwitterionic surfactant, an anionic surfactant, a nonionic surfactant, a cationic surfactant, and mixtures thereof; preferably a nonionic surfactant; and / or
[0230] - a chelator; and / or
[0231] - an alkalizing agent; and / or
[0232] - at least one adjuvant, such as an acidifying agent,
[0233] wherein these substances have the same definitions as described for the ready-to-use composition of the first aspect.
[0234] The agent in the second compartment preferably has a pH value of from 2.0 to 5.0, preferably 2.5 to 4.5, and more preferably 2.8 to 4.0, such as 2, 2.2, 2.4, 2.6, 2.8, 3, 3.2, 3.4, 3.6, 3.8, 4, 4.2, 4.4, 4.6, 4.8, 5, or any ranges between two above-listed values.
[0235] As for all ingredients in the first and second compartments, the contents thereof shall satisfy the definitions specified above for the ready-to-use composition except for the calculation basis being the total weight of a mixture of the agents in the first and second compartments obtained immediately before use.
[0236] The agent in the first compartment and the agent in the second compartment are mixed together immediately before use in a mass ratio of 1: 10 to 10: 1, e.g., 1: 5 to 5: 1, or 1: 3 to 3: 1, such as 10: 1, 9: 1, 8: 1, 7: 1, 6: 1, 5: 1, 4: 1, 3: 1, 2: 1, 1: 1, 1: 2, 1: 3, 1: 4, 1: 5, 1: 6, 1: 7, 1: 8, 1: 9, 1: 10, or any ranges between two above-listed values.
[0237] Process
[0238] In a third aspect, the present invention provides a process for coloring keratinous materials, for example human keratinous materials, in particular human hairs, comprising:
[0239] a) applying either the ready-to-use composition of the first aspect, or an instant mixture of the agents in the first and second compartments of the multi-compartment kit of the second aspect, onto the keratinous materials; and
[0240] b) leaving the applied composition on the keratinous materials for a period of time, e.g., 1-60 minutes, or 5-45 minutes, or 10-30 minutes, such as 1, 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30, 32, 34, 36, 38, 40, 42, 44, 46, 48, 50, 52, 54, 56, 58, 60 minutes, or any ranges between two above-listed values.
[0241] The keratinous materials, after the step b) above, may be further rinsed, optionally washed with a shampoo, rinsed again, optionally washed with a hair conditioning composition, and rinsed again, then dried. The shampoo and hair conditioning composition may be any conventional hair shampoo and conditioner products.
[0242] Amount of the composition to be applied onto the keratinous materials usually depend on the amount or volume of keratinous materials to be treated. For example, an effective amount of the composition to be applied is typically about 0.1-100 g, e.g., 5-70 g, or 15-40 g, such as 0.1, 1, 4, 8, 12, 16, 20, 24, 28, 32, 36, 40, 44, 48, 52, 56, 60, 64, 68, 72, 76, 80, 84, 88, 92, 96, 100 g, or any ranges between two above-listed values, relative to 1 g of keratinous materials.
[0243] Examples
[0244] The present invention will now be described by way of the following examples, which are intended to assist one of ordinary skill in the art to better understand and practice the present invention. The scope of the present invention is not limited by these examples, but is defined in the appended claims.
[0245] Amount of each ingredient in the following examples was in wt. %based on a total weight of a respective agent in which it was contained. In all examples, the same name refers to the same substance, and the amount of hydrolyzed protein shown in Tables below was the amount of active matter of hydrolyzed protein, rather than the amount of the solution in which the hydrolyzed protein was contained.
[0246] Test Method
[0247] Samples prepared in the following Examples were tested to investigate their coloring performances. In specific, tests were performed in a manner of grouping, wherein one group consisted of a sample and another different sample for comparison. In order to ensure the accuracy of the tests, each sample was tested on three pre-bleached human hair strands which are of the same type. The test results of all three hair strands were averaged to give a final test result for each test condition. More specifically, for each sample, the test method may include the following steps.
[0248] (1) measurement of color intensities of untreated hair strands
[0249] Three pre-bleached human hair strands to be treated were tested for the color intensity in the CIEL*a*b*colorimetric system, respectively.
[0250] The L*a*b*colorimetric system was a colorimetric system that assigned each color to a position in a spherical color space. In this color space, the brightness was represented by a position in the ordinate (z-axis) direction, the hue was represented by a position in the circumferential direction, and the chroma was represented by a distance from the center axis. The position on the ordinate (z-axis) representing brightness was designated by L*, and the L*value changes from 0 corresponding to black to 100 corresponding to white. The positive direction of the x-axis corresponded to a red direction, the positive direction of the y-axis corresponded to a yellow direction, the negative direction of the x-axis corresponded to a green direction, the negative direction of the y-axis corresponded to a blue direction, and the position on the x-axis was designated by a*of which value changed from -128 to +127 and the position on the y-axis was designated by b*of which value changed from -128 to +127. The hue and chroma were represented by a*value and b*value, respectively. In brief, L*represented the brightness, a*indicated the green / red colour axis, and b*indicated the blue / yellow colour axis.
[0251] In specific, L*a*b*values of each hair strand were tested using DC 500 (light source: D65 pulse xenon lamp; wavelength range: 360-700 nm; available from Datacolor) and Color controller (TILO T60 (5) color matching light box; light source: D65; available from Shenzhen ThreeNH Technology Co., Ltd) . Each hair strand was tested 16 times (8 times for front side of the hair strand, and 8 times for rear side of the hair strand) for L*a*b*values, and an average value was calculated. Afterwards, an average color intensity of three hair strands was calculated, and recorded for further use.
[0252] (2) sample formulation and coloring of hair strands
[0253] A first agent and a second agent of a sample were formulated respectively, and then mixed in a mass ratio of 1: 2 thoroughly immediately before application to the hair strands. The mixture was then instantly applied to each pre-bleached hair strand at an amount of 5g mixture per 1g hair strand, brushed evenly on the hair strand, and was kept on the hair strand at room temperature for about 30 minutes. Afterwards, the hair strands were rinsed off thoroughly with water, and then dried in the air away from light.
[0254] (3) measurement of color intensities of initially colored hair strands
[0255] Three initially colored hair strands obtained in step (2) were then tested for the color intensity in the L*a*b*system in accordance with the specific procedure as described in step (1) respectively. Likewise, an average color intensity of three hair strands was then calculated, and recorded for further use.
[0256] (4) washing initially colored hair strands and measuring color intensities of washed colored hair strands
[0257] Three initially colored hair strands were then subjected to one or more washing cycles, wherein one washing cycle included the operations of washing with a standard shampoo and a subsequent water, as well as of drying in the air away from light. Based on an assumption that a common consumer generally washed his / her hairs 3 times per week, 3 washing cycles should be regarded as one week; likewise, 6 washing cycles should be regarded as two weeks, 12 washing cycles should be regarded as three weeks, and so on. After performing a specified number of washing cycles (e.g., 6 or 12 washing cycles) , three hair strands were measured for their color intensities in the L*a*b*system in accordance with the procedure as described in step (1) respectively, and then an average color intensity of three hair strands was calculated and recorded for further use.
[0258] (5) calculation of difference in color intensity ΔE
[0259] A difference in color intensity ΔE between hair strands in different states (i.e., the untreated hair strands, initially colored hair strands, or washed colored hair strands) could be calculated, and thus the color fastness could be assessed. In specific, the difference in color intensity ΔE was calculated using an equation below:
[0260] wherein:
[0261] - and represented average L*, a*and b*values of hair strands in one state;
[0262] - and represented average L*, a*and b*values of hair strands in another state.
[0263] For example, ΔE value may be calculated for initially colored hair strands and untreated hair strands, or for washed colored hair strands and untreated hair strands, or for washed colored hair strands and initially colored hair strands, using equation (a-1) , (a-2) or (a-3) below:
[0264] wherein:
[0265] - ΔEA represented a difference in color intensity between initially colored hair strands and untreated hair strands;
[0266] - and represented average L*, a*and b*values of initially colored hair strands;
[0267] - and represented average L*, a*and b*values of untreated hair strands,
[0268] wherein:
[0269] - ΔEB represented a difference in color intensity between washed colored hair strands and untreated hair strands;
[0270] - and represented average L*, a*and b*values of washed colored hair strands;
[0271] - and represented average L*, a*and b*values of untreated hair strands,
[0272] wherein:
[0273] - ΔEC represented a difference in color intensity between washed colored hairs strand and initially colored hair strands;
[0274] - and represented average L*, a*and b*values of washed colored hair strands;
[0275] - and represented average L*, a*and b*values of initially colored hair strands.
[0276] Depending on different calculation objects, there were different assessment criteria for the color fastness, as expatiated in the specific examples below.
[0277] It should be noted that, as for two samples in each group, tests were performed simultaneously, all of the test conditions, including the environment such as temperature and humidity, the operators and their manipulations, the leave-on time of sample on the hair strands and the like, were consistent or in strict sense had extremely small and negligible differences, and thus the test and calculation results thereof could be compared directly. However, as for samples of different groups, although the test conditions were kept as consistent as possible among groups, the tests thereof were conducted non-simultaneously by different operators, resulting in that there would be inevitable differences and that the test and calculation results of different groups could not be compared directly.
[0278] Example 1
[0279] In this Example, sample S1 of the ready-to use composition of the present invention and a comparative sample CS1 containing no hydrolyzed keratin were prepared using a first agent and a second agent containing the materials and amounts (in wt. %) listed in Table 1 below.
[0280] Table 1
[0281] Remarks:
[0282] *: Promois WK-HF (INCI Name: Hydrolyzed Keratin (and) Water; 25%active matter; molecular weight: 1,000 Da, comprising 6.3 mol. %of cysteine, 11.8 mol. %of serine, and 6.1 mol. %of proline) , available from SEIWA KASEI Co., Ltd.
[0283] Samples S1 and CS1 were assigned to the same group (i.e., Group 1) , and subjected to the aforesaid test method. In specific, the hair strands colored with samples S1 and CS1 were subjected to 12 washing cycles. The color intensities after 6 washing cycles and 12 washing cycles were measured respectively, and respective ΔEC values were calculated using the equation (a-3) . The results were shown in Table 2 below. It should be understood that a lower ΔEC value indicated a better color retentivity and a higher color fastness.
[0284] Table 2
[0285] It was clear from Table 2 that:
[0286] - the hair strands colored with samples S1 and CS1 had a close color intensity results after initial oxidation colorings;
[0287] - after 6 washing cycles (i.e., after 2 weeks) , the hair strand colored with sample CS1 had a higher ΔEC value (i.e., 6.81) than that of the hair strand colored with sample S1 (i.e., 4.67) , indicating that the hair strand colored with sample CS1 had a more color fading as compared with the hair strand colored with sample S1;
[0288] - after 12 washing cycles (i.e., after 4 weeks) , the hair strand colored with sample CS1 had a significantly higher ΔEC value (i.e., 10.20) than that of the hair strand colored with sample S1 (i.e., 6.12) , indicating that the hair strand colored with sample CS1 had a significantly more color fading as compared with the hair strand colored with sample S1.
[0289] In addition, it was also observed that both of the hair strands colored with samples S1 and CS1 were smooth, soft, and easy to be disentangled.
[0290] It thus was clear from the comparison of samples S1 and CS1 that, the use of hydrolyzed protein with the specific molecular weight and in the specific amount enabled that the colored hair had a vivid initial color, good cosmetic properties, and an excellent color fastness or color retentivity, more specifically an excellent shampoo-resistant color fastness or color retentivity, even after a 4-week shampoo cleansing.
[0291] Example 2
[0292] In this Example, the effective molecular weight of the hydrolyzed protein for improving the coloring performance of an oxidation coloring system was investigated. For this purpose, a sample S2 of the composition of the present invention, two comparative samples CS2 and CS3 containing hydrolyzed keratins of which the molecular weights were outside the specified range, and a reference sample containing no hydrolyzed keratin were prepared using a first agent and a second agent containing the materials and amounts (in wt. %) listed in Table 3 below.
[0293] Table 3
[0294] Remarks:
[0295] (1) : Promois WK-F (INCI Name: Hydrolyzed Keratin (and) Water; 25%active matter; Molecular weight: 400 Da, comprising 6.3 mol. %of cysteine, 11.8 mol. %of serine, and 6.1 mol. %of proline) , available from SEIWA KASEI Co., Ltd.
[0296] (2) : Promois WK-LF (INCI Name: Hydrolyzed Keratin (and) Water; 20%active matter; molecular weight: 4,000 Da, comprising 6.3 mol. %of cysteine, 11.8 mol. %of serine, and 6.1 mol. %of proline) , available from SEIWA KASEI Co., Ltd.
[0297] (3) : Promois WK-HF (INCI Name: Hydrolyzed Keratin (and) Water; 25%active matter; molecular weight: 1,000 Da, comprising 6.3 mol. %of cysteine, 11.8 mol. %of serine, and 6.1 mol. %of proline) , available from SEIWA KASEI Co., Ltd.
[0298] Samples S2, CS2 and CS3, as well as the reference sample were subjected to the aforesaid test method. In specific, the tests were performed based on three groups respectively: comparative sample CS2 and the reference sample (i.e., Group 2) ; comparative sample CS3 and the reference sample (i.e., Group 3) ; and sample S2 and the reference sample (i.e., Group 4) . More specifically, the hair strands colored with samples S2, CS2 and CS3, as well as the reference sample were subjected to 6 washing cycles, the color intensities after 6 washing cycles were measured, and respective ΔEA and ΔEB values were calculated using the equations (a-1) and (a-2) . The results were shown in Table 4 below. It should be understood that, for two samples of each group, higher ΔEA and ΔEB values represented better color intensity, and a higher ΔEB indicated a better color retentivity and a higher color fastness.
[0299] Table 4
[0300] Remarks:
[0301] *: ΔΔEB represented a difference between ΔEB values of a sample and the reference sample within the same group; e.g., a difference between ΔEB values of sample CS2 and the reference sample.
[0302] It was clear from the test results of group 2 that, the addition of Promois WK-F (Mw: 400 Da) into the oxidation coloring system had no obvious effect on the color vibrancy and color retentivity or color fastness.
[0303] It was clear from the test results of group 3 that, the addition of Promois WK-LF (Mw: 4,000 Da) into the oxidation coloring system had no obvious effect on the color vibrancy and color retentivity or color fastness either.
[0304] It was clear from the test results of group 4 that, the addition of Promois WK-HF (Mw: 1,000 Da) into the oxidation coloring system had a significant effect on the improvement of the color vibrancy and color retentivity or color fastness.
[0305] In addition, it was also observed that all of the hair strands colored with samples S2, CS2 and CS3, as well as reference sample were smooth, soft, and easy to be disentangled.
[0306] It thus was clear from the comparison of the aforesaid groups that, the molecular weight of the hydrolyzed protein had a significant impact on the improvement of color fastness or color retentivity, and a hydrolyzed protein of which the molecular weight outside the specified content range (i.e., 600 to 2, 500 Da) cannot significantly improve the color fastness or the color retentivity.
[0307] Example 3
[0308] In this Example, the effective amount of the hydrolyzed protein for improving the coloring performance of an oxidation coloring system was investigated. For this purpose, in addition to sample S2 which was already described in Example 2 above and reproduced in Table 5 below, comparative samples CS4 and CS5 were further prepared using a first agent and a second agent containing the materials and amounts (in wt. %) listed in Table 5 below.
[0309] Table 5
[0310] Remarks:
[0311] *: Promois WK-HF (INCI Name: Hydrolyzed Keratin (and) Water; 25%active matter; molecular weight: 1,000 Da, comprising 6.3 mol. %of cysteine, 11.8 mol. %of serine, and 6.1 mol. %of proline) , available from SEIWA KASEI Co., Ltd.
[0312] Samples S2, CS4 and CS5 were subjected to the aforesaid test method. In specific, the tests were performed based on two groups respectively: comparative sample CS4 and sample S2 (i.e., Group 5) ; and comparative sample CS5 and sample S2 (i.e., Group 6) . In specific, the hair strands colored with samples S2, CS4 and CS5 were subjected to 6 washing cycles, the color intensities after 6 washing cycles were measured, and respective ΔEA and ΔEB values were calculated using the equations (a-1) and (a-2) . The results were shown in Table 6 below. It should be understood that, for two samples of each group, higher ΔEA and ΔEB values represented better color intensity; and a higher ΔEB value indicated a better color retentivity and a higher color fastness.
[0313] Table 6
[0314] It was clear from Table 6 that:
[0315] - the hair strands colored with samples S2, CS4 and CS5 had close color intensity results after initial oxidation colorings;
[0316] - as for Group 5, after 6 washing cycles (i.e., after 2 weeks) , the hair strands colored with sample S2 had a higher ΔEB value (i.e., 42.09) than that of hair strands colored with sample CS4 (i.e., 40.48) , indicating that the hair strands colored with sample S2 had a less color fading and a better color fastness or color retentivity as compared with hair strands colored with sample CS4;
[0317] - as for Group 6, after 6 washing cycles (i.e., after 2 weeks) , the hair strand colored with sample S2 had a higher ΔEB value (i.e., 43.00) than that of hair strands colored with sample CS5 (i.e., 41.35) , indicating that the hair strands colored with sample S2 had a less color fading and a better color fastness or color retentivity as compared with hair strands colored with sample CS5.
[0318] In addition, it was also observed that all of the hair strands colored with samples S2, CS4 and CS5 were smooth, soft, and easy to be disentangled.
[0319] It thus was clear from the comparison of the aforesaid groups of samples that, the amount of the hydrolyzed protein had a significant impact on the improvement of color fastness or color retentivity, and an amount of the hydrolyzed protein outside the specified content range (i.e., at least 0.3 wt. %, relative to the total weight of the ready-to-use composition) cannot significantly improve the color fastness or the color retentivity.
[0320] Although some preferred embodiments have been described, many modifications and variations may be made thereto in light of the above teachings. It is therefore to be understood that the invention may be practiced otherwise than as specifically described without departing from the scope of the appended claims.
Claims
1.A ready-to-use composition for oxidation coloring of keratinous materials, for example human keratinous materials, in particular human hairs, comprising, based on the total weight of the ready-to-use composition:(a) at least 0.3 wt. %, such as 0.3-50 wt. %, or 0.3-30 wt. %, or 0.3-5 wt. %, or 0.3-2 wt. %of at least one hydrolyzed protein with a molecular weight of 600 to 2,500 Daltons, preferably 700 to 2,200 Daltons, more preferably 800 to 1,800 Daltons, especially preferably 900 to 1,300 Daltons;(b) at least one fatty substance;(c) at least one oxidation dye precursor;(d) at least one alkalizing agent; and(e) at least one oxidizing agent.2.The ready-to-use composition according to claim 1, wherein the at least one hydrolyzed protein is obtained from plants and their respective components, seeds, animal bones, connective tissue, animal keratin, bovine and porcine collagen, human hair, wool, silk, elastin, reticulin, milk, egg, wheat, corn, soya, oat, casein, albumin, or any collagenous or keratious substance, or derivatives thereof; preferably from soy, wheat, pea, rice, sesame, silk, keratin, fish collagen, pearl, milk, and their respective components, derivatives or combinations thereof; more preferably from wheat, silk, keratin, fish collagen, pearl or milk; more preferably from keratin; and most preferably sheep wool.3.The ready-to-use composition according to claim 1 or 2, wherein the at least one hydrolyzed protein comprises 2-18 mol. %, preferably 4-10 mol. %, and more preferably 5-8 mol. %of cysteine; and / or comprises 2-14 mol. %, preferably 5-13 mol. %, and more preferably 8-12 mol. %of serine; and / or comprises 2-12 mol. %, preferably 4-10 mol. %, and more preferably 5-8 mol. %of proline.4.The ready-to-use composition according to any of preceding claims,wherein the fatty substance comprises one or more substances selected from:(i) linear or branched hydrocarbons containing 6-35 carbon atoms;(ii) waxes;(iii) hydrocarbon-based oils of animal or plant origin;(iv) fatty alcohols that are nonoxyalkylenated, saturated or unsaturated, linear or branched, and contain 6 to 30 carbon atoms; and(v) esters of saturated or unsaturated, linear or branched C1-C26 aliphatic mono-or polyacids, or inorganic mono-or polyacids with saturated or unsaturated, linear or branched C1-C26 aliphatic mono-or polyalcohols; and / orwherein the fatty substance is present in an amount of 0.1-40 wt. %, for example, 1-30 wt. %, or 2-15 wt. %, or 3-10 wt. %, based on the total weight of the ready-to-use composition.5.The ready-to-use composition according to any of preceding claims,wherein the oxidation dye precursor comprises at least one oxidation base and optionally at least one coupler; and / orwherein the oxidation dye precursor is present in an amount of 0.01-8 wt. %, preferably 0.05-5 wt. %, more preferably 0.1-2 wt. %, especially preferably 0.12-0.5 wt. %, based on the total weight of the ready-to-use composition.6.The ready-to-use composition according to any of preceding claims,wherein the oxidation base is selected from 4, 5-diaminopyrazoles, para-phenylenediamines, double bases, para-aminophenols, ortho-aminophenols, pyridine derivatives, pyrimidine derivatives, pyrazolopyrimidine derivatives, pyrazolones, addition salts thereof, and mixtures thereof; and / orwherein the oxidation base is present in an amount of 0.01-5 wt. %, preferably 0.03-3 wt. %, more preferably 0.05-1.5 wt. %, especially preferably 0.08-0.5 wt. %, based on the total weight of the ready-to-use composition.7.The ready-to-use composition according to any of preceding claims,wherein the coupler is selected from meta-aminophenols, meta-phenylenediamines, meta-diphenols, naphthols, and heterocyclic couplers such as indole derivatives, indoline derivatives, sesamol and its derivatives, pyridine derivatives, pyrazolotriazole derivatives, pyrazolones, indazoles, benzimidazoles, benzothiazoles, benzoxazoles, 1, 3-benzodioxoles, quinolines, and benzomorpholines, addition salts thereof, and mixtures thereof; and / orwherein the coupler is present in an amount of 0.01-5 wt. %, preferably 0.03-3 wt. %, more preferably 0.05-1.5 wt. %, especially preferably 0.06-0.5 wt. %, based on the total weight of the ready-to-use composition.8.The ready-to-use composition according to any of preceding claims,wherein the alkalizing agent is one or more compounds selected from:(i) aqueous ammonia;(ii) alkanolamines, preferably 2-aminoethan-1-ol (monoethanolamine) , 3-aminopropan-1-ol, 4-aminobutan-1-ol, 5-aminopentan-1-ol, 1-aminopropan-2-ol, 1-aminobutan-2-ol, 1-aminopentan-2-ol, 1-aminopentan-3-ol, 1-aminopentan-4-ol, 3-amino-2-methylpropan-1-ol, 1-amino-2-methylpropan-2-ol, 3-aminopropan-1, 2-diol, 2-amino-2-methylpropan-1, 3-diol;(iii) basic amino acids, preferably L-arginine, D-arginine, D, L-arginine, L-lysine, D-lysine, and D, L-lysine; and(iv) inorganic alkalizing agents, preferably alkaline earth or alkali metal hydroxides, alkaline earth or alkali metal metasilicates, alkaline earth or alkali metal phosphates, alkaline earth or alkali metal hydrogen phosphates, alkali metal carbonates and bicarbonates, and / orwherein the alkalizing agent is present in an amount of 0.1-20 wt. %, e.g., 1-15 wt. %, or 1.5-10 wt. %, based on the total weight of the ready-to-use composition.9.The ready-to-use composition according to any of preceding claims,wherein the oxidizing agent is selected from peroxides such as hydrogen peroxide and urea peroxide, bromates and ferricyanides of alkali metals, and mixtures thereof; and / orwherein the oxidizing agent is present in an amount of 0.1-12 wt. %, e.g., 2-10 wt. %, based on the total weight of the ready-to-use composition.10.The ready-to-use composition according to any of preceding claims, wherein the ready-to-use composition further comprises:- one or more surfactants selected from a zwitterionic surfactant, an anionic surfactant, a nonionic surfactant, a cationic surfactant and mixtures thereof; preferably selected from a nonionic surfactant, a cationic surfactant and mixtures thereof; and more preferably a mixture of a nonionic surfactant and a cationic surfactant; and / or- one or more chelators, preferably selected from carboxylic acids, phosphonic acids, polyphosphoric acids, salts or derivatives thereof, and mixtures thereof; and / or- one or more adjuvants selected from a tackifier, an antidandruff agent, a vitamin and provitamin, a preservative, a plasticizer, an acidifying agent, a thickener, a fragrance, a reducing agent, a direct dye, a pigment, and mixtures thereof.11.A multi-compartment kit for oxidation coloring of keratinous materials, for example human keratinous materials, in particular human hair, comprising:- a first compartment, which contains an agent comprising at least 0.3 wt. %, such as 0.3-50 wt. %, or 0.3-30 wt. %, or 0.3-5 wt. %, or 0.3-2 wt. %of at least one hydrolyzed protein with a molecular weight of 600 to 2,500 Daltons, preferably 700 to 2,200 Daltons, more preferably 800 to 1,800 Daltons, especially preferably 900 to 1,300 Daltons, at least one oxidation dye precursor, at least one fatty substance, and at least one alkalizing agent; and- a second compartment, which contains an agent comprising at least one oxidizing agent, and optionally at least one fatty substance that is same or different from the at least one fatty substance in the first compartment,wherein each amount is based on the total weight of a mixture of the agents in the first and second compartments obtained immediately before use.12.The multi-compartment kit according to claim 11, wherein the at least one oxidation dye precursor, the at least one fatty substance, the at least one alkalizing agent and the at least one oxidizing agent are the same as those defined in any of claims 1 to 9 except for being based on the total weight of a mixture of the agents in the first and second compartments obtained immediately before use.13.The multi-compartment kit according to claim 11 or 12, wherein the agent in the first compartment and the agent in the second compartment independently further comprises one or more surfactants, one or more chelators, one or more adjuvants, or mixtures thereof as defined in claim 10.14.The multi-compartment kit according to any of claims 11-13,wherein the agent in the first compartment has a pH value of 7.0 to 12.0, preferably 8.0 to 11.0, and more preferably 9.0 to 10.5; and / orwherein the agent in the second compartment has a pH value of from 2.0 to 5.0, preferably 2.5 to 4.5, and more preferably 2.8 to 4.0.15.The multi-compartment kit according to any of claims 11-14, wherein the multi-compartment kit comprises one or more further compartments which contain one or more ingredients capable of boosting the coloration of keratinous materials or conditioning / caring the keratinous materials.16.A process for coloring keratinous materials, for example human keratinous materials, in particular human hairs, comprising:a) applying either a ready-to-use composition according to any of claims 1-10, or an instant mixture of agents in a first and second compartments of a multi-compartment kit according to any of claims 11-15, onto the keratinous materials; andb) leaving the applied composition on the keratinous materials for a period of time, e.g., 1-60 minutes, or 5-45 minutes, or 10-30 minutes.