KR102461158B1 - Composition for hair dyeing comprising nano-cellulose - Google Patents

Abstract

The present invention relates to a hair dye composition having improved color retention by improving water loss after dyeing, and a method for preparing the same. More specifically, by including nanocellulose in the hair dye composition, the hair adsorption amount of the hair dye composition is improved, and the effect of improving water loss after dyeing is exhibited.

Description

Hair dye composition comprising nano-cellulose

The present invention relates to a hair dye for dyeing hair including a dye, and a method for preparing the same.

Conventional methods for dyeing keratin fibers are classified into temporary hair dyes, semi-permanent hair dyes, and permanent hair dyes according to the duration of the hair dyeing effect. Among them, the permanent hair dye with the best durability is also called an oxidation-type hair dye.

Temporary hair dyes and semi-permanent hair dyes, acid hair dyes, have a short duration and severe water loss, so the majority of hair dyes in the market are permanent hair dyes using oxidative polymerization.

In the case of oxidation-type hair dyes, oxidation dyes or pigments of low molecular weight cause oxidative polymerization in the hair to form pigments. Various colors can be obtained and the most widely used class of hair dyes because of their excellent hair dyeing power. to be. This oxidation-type hair dye composition consists of a hair dyeing agent as a first agent and an oxidizing agent as a second agent. The first agent, a hair dye, contains one or more dyes or pigment precursors and one or more couplers that form a dye or pigment by being oxidized by an oxidizing agent. It is used by mixing with the second agent, an oxidizing agent. The purpose of using such a hair dye is to dye the hair as completely as possible and to maintain the hair dyeing effect for a long time.

However, current commercially available hair dyes, including oxidation-type hair dyes, show water loss during the first three or more shampoos after dyeing. As it flows, there are cases where continuous water loss occurs due to oxidative color development on the surface, and the water loss phenomenon in damaged hair after dyeing is more pronounced. There is a problem in that the degree of discoloration is considerable due to this water-draining phenomenon, and this causes a difference in the initially targeted color. In addition, in the case of an oxidized hair dye, the disulfide bond (S-S) in the hair is destroyed during the bleaching process by the action of an oxidizing agent such as hydrogen peroxide, causing severe damage to the hair, making the feel of dyed hair worse compared to healthy hair. It has the disadvantage of reducing the luster of

Accordingly, an object of the present invention is to provide a hair dye composition capable of preventing water loss after dyeing by increasing the amount of hair adsorption, and a method for preparing the same.

In order to solve the above problems, the present invention provides a hair dye composition comprising nanocellulose.

The present inventors have completed the present invention by discovering that the dye (or pigment) draining phenomenon, which has been pointed out as a chronic problem in the conventional hair dye composition, can be remarkably improved by using nanocellulose.

In the hair dye composition for preventing water loss of the dye (or pigment) of the present invention, nanocellulose was used to increase the amount of hair adsorption of the hair dye composition. Nanocellulose has a small molecular weight, so the grading effect is better exhibited, and thus the amount of adsorption to the hair of the hair dye composition is significantly improved.

In the present invention, "nanocellulose" or "cellulose nanofiber" refers to nano-micrometer-sized rod-shaped particles in which cellulose chains form a bundle and are tightly coupled. The tensile modulus is about 100 to 160 GPa), and the density is about 0.8 to 1.5 g/cm ³ . It is 0.1-200 nm in diameter, Preferably it is 0.5-150 nm, Especially preferably, it is about 1-100 nm. Cellulose nanofibers may exist in the form of single microfibrils, or in the form in which nanofibers are entangled with each other, and the form is not particularly limited thereto.

Nanocellulose used in the present invention is not particularly limited, and various types of wood-derived craft paper or sulfite pulp, powdered cellulose obtained by pulverizing them with a high-pressure homogenizer or mill, or acid hydrolysis thereof In addition to microcrystalline cellulose powder purified by chemical treatment such as, cellulose derived from bacteria, and the like, plants such as kenaf, hemp, rice, bacchus, and bamboo can also be used. Of these, preferably, it is possible to use a cellulose nanofiber derived from bacteria, because it does not require pretreatment and has excellent keratin binding strength.

The nanocellulose according to the present invention may be obtained from a natural product by a method such as production through bacterial culture or top-down processing in wood pulp or non-wood plants, or may be obtained by a chemical method. have. Nanocellulose according to the present invention can be prepared by various methods known in the art, for example, acid hydrolysis, cellulase (endoglucanases, exoglucanases, cellobiohydrolases) treatment, ionic liquid (ionic liquid) treatment (Z. Man, N. Muhammad, A. Sarwono, M. A. Bustam, M. V. Kumar, and S. Rafiq, "Preparation of Cellulose Nanocrystals Using an Ionic Liquid," J. Polym. Envi-ron., vol. 19, no. 3, pp. 726-731 , 2011.), mechanical treatment, or chemical/mechanical mixing method.

In the present invention, nanocellulose is 0.0005 wt% or more and 15 wt% or less, preferably 0.005 to 10 wt%, more preferably 0.05 to 5 wt%, most preferably 0.25 to 2.5 wt%, based on the total weight of the hair dye composition % may be included. When included in less than 0.0005% by weight, it does not exert a significant effect on improving the amount of hair adsorption of the hair dye.

In the present invention, when the hair dye composition according to the present invention is an oxidation-type hair dye first agent composition, nanocellulose is 0.001 wt% or more and 30 wt% or less, preferably 0.01-20 wt%, based on the total weight of the oxidation-type hair dye first agent composition, More preferably, it may be included in an amount of 0.1 to 10% by weight, and most preferably 0.5 to 5% by weight. When included in less than 0.001% by weight, it does not exert a significant effect on improving the hair adsorption amount of the hair dye.

In the hair dye composition according to the present invention, cellulose-based compounds other than nanocellulose are not substantially included. In the present invention, the term "substantially free" refers to 0.1 wt% or less and 0.01 wt% or less of the total weight of the hair dye composition, and more preferably 0 wt% (that is, does not contain) say

The hair dye composition according to the present invention includes a dye part.

The dye part includes a dye precursor and a coupler.

As the dye precursor according to the present invention, dye precursors used in hair dyes in the art can be used without limitation, for example, about 50 compounds registered as oxidation bases based on color index (C.I.) are harmless to the human body. The above may be used without limitation, and an oxidized dye precursor may be used, for example, p-phenylenediamine, resorcinol, o-aminophenol, p-aminophenol, toluene hydrochloride-2,5-diamine, hydrochloric acid p -Phenylenediamine, toluene-2,5-diamine, p-phenylenediamine, sulfuric acid p-methylaminophenol, sulfate o-aminophenol, sulfuric acid p-aminophenol, toluene sulfate-2,5-diamine, sulfuric acid p- phenylenediamine etc. are mentioned, The type and combination are not limited. However, the effect of the present invention is further maximized when a dye precursor with a small molecular structure is used, which escapes through the keratin gap, which is the outermost layer of the hair after dyeing, and the dye has a severe water loss phenomenon. This is because luluose has the effect of preventing the escape of the dye precursor. The content of the oxidation-type dye precursor is preferably 0.05 to 5% by weight (based on the free base when present as a salt), more preferably 0.25 to 1.5% by weight, based on the total weight of the hair dye composition. 0.2-530,000 g of the oxidation-type dye precursor may be included relative to the dry weight of 1 g of nanocellulose.

In addition, as the coupler according to the present invention, couplers used in hair dyes in the art may be used without limitation, for example, 2-methyl-5-hydroxyethylaminophenol, p-amino-o-cresol, m-amino Phenol, hydrochloric acid 2,4-diaminophenoxyethanol, hydrochloric acid m-phenylenediamine, m-phenylenediamine, N-methyl-p-phenylenediamine, sulfuric acid p-amino-o-cresol, sulfuric acid 4-e oxy-m-phenylenediamine, m-phenylenediamine sulfate, α-naphthol, resorcinol, 2-methylresorcinol, and the like, and the type and combination thereof are not limited.

In addition, the hair dye composition according to the present invention may further include a commonly used direct dye within a range that does not impair the purpose of the present invention. Such direct dyes include, for example, Arianol dye, p-nitro-o-phenylenediamine, nitro-p-phenylenediamine, 2-amino-4-nitrophenol, 2-amino-5-nitrophenol, and nitro-p-phenylenediamine hydrochloride, picramic acid and other vegetable dyes such as Henna, but is not limited thereto.

When the hair dye composition according to the present invention is an oxidation-type hair dye composition, an oxidizing agent for oxidation reaction may be included. The oxidizing agent may be included in the oxidizing type hair dye second agent composition. In this case, the oxidation-type hair dye first composition and the oxidation-type hair dye second composition are included in the oxidation-type hair dye composition, and the nanocellulose is included in the first oxidized hair dye composition.

As the oxidizing agent, any oxidizing agent can be used as long as it is an oxidizing agent capable of promoting the intended oxidation reaction, such as halogen, hypohalogenous acid, ahalogenic acid, perhalogenic acid or salts thereof, halogen oxide, peroxide, and the like. Among them, sodium hypochlorite is the most widely used low-cost raw material in the current mass production of raw materials from the viewpoint of nanofiber production cost, and it is preferable because it has a small environmental load. Usually, hydrogen peroxide is used. The amount of the oxidizing agent to be used can be selected within a range capable of promoting the oxidation reaction. For example, 0.5 to 500 mmol, preferably 0.5 to 50 mmol, and particularly preferably about 2.5 to 25 mmol can be used with respect to the dry weight of nanocellulose of 1 g.

When the hair dye composition according to the present invention is an oxidation-type hair dye composition, as the bromide or iodide used in the oxidation reaction, an alkali metal bromide or alkali metal iodide, such as alkali metal bromide or alkali metal iodide, can be used as a compound capable of dissociation and ionization in an aqueous solution. In addition, the amount of bromide or iodide to be used can be selected within a range capable of promoting the oxidation reaction. For example, 0.1 to 1000 mmol, preferably 0.2 to 750 mmol, particularly preferably about 1 to 600 mmol can be used with respect to the dry weight of nanocellulose of 1 g.

In addition, the hair dye composition according to the present invention may include a nonionic surfactant and/or an anionic surfactant used in hair dyes in the art.

Nonionic surfactants included in the present invention include, for example, monoglyceride, diglyceride, propylene glycol fatty acid ester, sorbitan mono fatty acid ester, polyoxyethylene sorbitan fatty acid ester, polyoxyalkylene, alkylglyceryl ether and A mixture of two or more thereof may be included, but is not limited thereto. Among the above nonionic surfactants, polyoxyalkylene is preferably included. Polyoxyalkylene includes, for example, lauryl alcohol or decyl alcohol to which EO (ethylene oxide) is added, polyoxyethylene, polyoxyethylene (3) decyl ether, polyoxyethylene cetyl ether, polyoxyethylene (2) lauryl ether , polyoxyethylene (3) lauryl ether and polyoxyethylene (4) lauryl ether, or mixtures thereof. The content of the nonionic surfactant according to the present invention may be 1 to 30% by weight, preferably 1 to 20% by weight, based on the total weight of the composition. If it is less than 1% by weight, the thickening effect of the dyeing solution is very low, so the usability is very poor and a clear dyeing effect cannot be expected. Dyeability may decrease.

The anionic surfactant included in the present invention enables the dye solution to be quickly applied to the hair, and exhibits shampoo-like properties when rinsing immediately after dyeing, so that the dye solution remaining on the hair, scalp, and skin without the use of additional shampoo or soap It can give a characteristic that removes more effectively. In addition, when the anionic surfactant is applied to a dyeing container capable of forming a foam, the formulation can be effectively applied to the foam-type hair dye dyeing container by stably forming the foam. The anionic surfactant used in the present invention may be used without limitation those commonly used in the art. For example, carboxylate compounds such as soap, higher alcohols, higher alkyl ethers, sulfuric ester salt compounds obtained by sulfating olefins, sulfate compounds including alkylbenzensulfonate, higher alcohols There may be a phosphate compound obtained by phosphorylation of , an ammonium salt obtained by neutralizing a higher alcohol with monoisopropanolammonium or triethanolamine. More specifically, sodium lauryl sulfate (hereinafter referred to as 'SLS'), sodium lauryl ether sulfate (SLES), linear alkylbenzene sulfonate (LAS), monoisopropanol ammonium lauryl ether sulfate (MIPA) -lauryl ether sulfate monoalkyl phosphate (MAP), acyl isethionate (SCI), alkyl glyceryl ether sulfonate (AGES), acyl glutamate, acyl taurate and fatty acids It is preferable that any one or a mixture of two or more selected from the group consisting of a fatty acid metal salt, etc., is not limited thereto. The content of the anionic surfactant may be 0.01 to 20% by weight, preferably 0.1 to 10% by weight, based on the total weight of the composition. If it is less than 0.1% by weight, the foam cannot be effectively formed, and if it exceeds 20% by weight, it prevents the hair dye from penetrating into the hair, so that the dyeability is significantly reduced.

The hair dye composition according to the present invention may further include an aliphatic alcohol (C ₁₂ ~ C ₂₂ ). As an example of the aliphatic alcohol, oleyl alcohol is a transparent liquid type alcohol among aliphatic alcohols and is suitable for blending in the liquid hair dye composition of the present invention. The content of oleyl alcohol according to the present invention may be 0.1 to 30% by weight, preferably 0.5 to 20% by weight, based on the total weight of the composition. If the content is less than 0.1% by weight, the thickening effect of the dyeing solution is very low, and not only the usability is very poor, but also a clear effect cannot be expected.

In addition, additives commonly used for hair dyes in the art may be used in the hair dye composition according to the present invention within a range that does not impair the effects of the present invention. For example, a solvent, a water-soluble moisturizer, an antioxidant, a thickener, an alkali agent, a metal sequestering agent, an oxidizing agent, a fragrance, and the like can be used.

As the water-soluble moisturizer that can be used in the present invention, any one or a mixture of two or more of glycol ethers such as propylene glycol, hexylene glycol, and diethylene glycol can be used. The usable content may be 0.01 to 20% by weight, more preferably 0.5 to 15% by weight, based on the total weight of the hair dye composition.

In addition, the antioxidant is not particularly limited as long as it can be conventionally used for hair dye, and for example, ascorbic acid, erythorbic acid, cysteine hydrochloride, sodium sulfite, and the like. A preferred content may be 0.01 to 10% by weight, more preferably 0.1 to 3% by weight, based on the total weight of the composition.

The alkali agent is not particularly limited as long as it has a pH of 6 or higher and can be used for hair dye, for example, ammonium or amine compounds such as aqueous ammonia, sodium hydroxide, potassium hydroxide, aqueous ammonia, monoethanolamine, aminomethylpropanol, etc., but is not limited thereto. . It is more preferable that such an alkali agent has a pH in the range of 6 to 12. The usable content may be 0.01 to 20% by weight, more preferably 0.5 to 15% by weight, based on the total weight of the hair dye composition.

The metal sequestering agent is used for the purpose of stabilizing the dye, and is not particularly limited as long as it can be commonly used in hair dyes, for example, EDTA-2Na, EDTA-3Na or EDTA-4Na, etc.), tetrasodium DTA, pentasodium pentitate, and the like. A preferred content may be 0.01 to 5% by weight, more preferably 0.05 to 1% by weight, based on the total weight of the composition.

In addition, when preparing the hair dye composition of the present invention, it is possible to fill the remaining content of the composition including water, preferably purified water, to enable uniform dissolution and dispersion of each component, and to control the viscosity.

The present invention provides a method for preparing a hair dye composition with improved color retention, comprising the step of mixing nanocellulose with the hair dye composition.

The method for preparing a hair dye composition according to the present invention includes mixing nanocellulose with the hair dye composition, thereby making it possible to prepare a hair dye composition with improved color retention.

The method of using the hair dye composition according to the present invention is briefly described as follows. The hair dye composition according to the present invention is applied to the hair, but in some cases, an oxidizing agent and a hair dye composition are mixed before application, applied to the hair, and left for 5 to 30 minutes. Then, rinse off with normal shampoo and water. Their detailed descriptions are covered in detail in literature such as Keith C. Brown and Stanley Pohl's "Permanent Hair Dyes" (1996, Society of Cosmetic Chemists).

According to the present invention, it is possible to significantly improve the dye water loss phenomenon, which has been pointed out as a chronic problem in the conventional hair dye composition containing cellulose, and thereby obtain excellent effects of preventing hair discoloration, expressing the desired hair color, and inhibiting hair damage. have.

The following drawings attached to this specification illustrate preferred embodiments of the present invention, and serve to further understand the technical idea of the present invention together with the above-described content of the invention, so the present invention is limited to the matters described in those drawings It should not be construed as being limited.
1 is a graph showing the calculation of the degree of water loss of a hair dye composition containing nanocellulose according to the present invention.

Hereinafter, examples and the like will be described in detail to help the understanding of the present invention. However, the embodiments according to the present invention may be modified in various other forms, and the scope of the present invention should not be construed as being limited to the following examples. The embodiments of the present invention are provided to more completely explain the present invention to those of ordinary skill in the art.

[Example 1] Preparation of hair dye composition containing nanocellulose

As the components and contents shown in Table 1 below (unit is weight %), dye precursors such as p-phenylenediamine, resorcinol, and p-aminoferol, propylene glycol, sodium sulfite, EDTA.4Na, oleic acid in purified water Monoalcohol and polyoxyethylene cetyl ether were dissolved by heating to 80° C. and then mixed, and then emulsified or stirred with sodium lauryl ether sulphate (sles). Then, after cooling to 40 ℃, monoethanolamine, strong ammonia water (28%), and mixed fragrance are uniformly mixed, and cellulose or nanocellulose (Ashland's Natrosol 250 HNF is used as hydroxyethyl cellulose). One oxidized hair dye composition was prepared.

Ingredient name Comparative Example 1 Comparative Example 2 Comparative Example 3 Example 1 Example 2 Nanocellulose - - - 0.15 1.50 cellulose - 5 10 - - oleyl alcohol 8.00 8.00 8.00 8.00 8.00 polyoxyethylene cetyl ether 2.50 2.50 2.50 2.50 2.50 EDTA.4Na 0.20 0.20 0.20 0.20 0.20 propylene gly haf 3.00 3.00 3.00 3.00 3.00 SLES (28%) 5.00 5.00 5.00 5.00 5.00 sodium sulfite 0.70 0.70 0.70 0.70 0.70 monoethanolamine 3.00 3.00 3.00 3.00 3.00 p-phenylenediamine 0.14 0.14 0.14 0.14 0.14 resorcinol 0.25 0.25 0.25 0.25 0.25 p-aminophenol 0.43 0.43 0.43 0.43 0.43 combination 0.70 0.70 0.70 0.70 0.70 Purified water To100 To100 To100 To100 To100

In addition, the composition of the second oxidized hair dye composition containing an oxidizing agent was prepared with the components and contents shown in Table 2 (unit is weight %).

ingredient Example Hydrogen peroxide (36%) 8.00 polyoxyethylene lauryl ether 0.8 etidronic acid 0.1 phosphoric acid 0.1 Sodium monohydrogen phosphate 0.2

[ Experimental example One] oxidized hair dye Evaluation of water loss of the composition

After using the oxidized hair dye composition in which the first oxidized hair dye composition according to Examples 1 and 2 and Comparative Examples 1, 2 and 3 described in Table 1 and the second oxidized hair dye composition described in Table 2 are mixed, the hair Water loss evaluation was carried out.

After dyeing the hair for the color fastness test with each oxidation-type hair dye composition, it was put into washing water containing 1% surfactant for each cycle, stirred for 20 minutes, and then rinsed. Then, the hair was taken with a colorimeter and the degree of water loss was calculated through the red-green color difference.

△E (water draining) Comparative Example 1 Comparative Example 2 Comparative Example 3 Example 1 Example 2
washing cycle

One 13.17 9.12 9.24 11.04 6.66 2 19.41 14.20 13.56 17.15 11.56 3 22.70 17.28 16.97 21.00 15.06 4 25.26 19.50 19.11 23.55 17.37

As a result, as can be seen in Table 3, in the case of Example 2 containing nanocellulose, it was confirmed that the degree of water loss was significantly improved compared to Comparative Examples 1, 2 and 3 not containing nanocellulose. In addition, it was confirmed that it is difficult to show a significant effect in improving water loss when a trace amount is included even if nanocellulose is included (Example 1).

Claims (5)

A hair dye composition comprising nanocellulose having a diameter of 0.1 to 200 nm and an oxidation-type dye precursor,
The oxidation-type dye precursor is included in an amount of 0.05 to 5% by weight based on the total weight of the hair dye composition,
The hair dye composition is a hair dye composition, characterized in that for improving water loss of dyed hair. The hair dye composition according to claim 1, wherein the nanocellulose is included in an amount of 0.0005 wt% or more and 15 wt% or less based on the total weight of the hair dye composition. The hair dye composition according to claim 1, wherein the oxidation-type dye precursor is at least one selected from the group consisting of p-phenylenediamine, resorcinol, p-aminoferol, and mixtures thereof. [Claim 4] The hair dye composition according to claim 3, wherein 0.2-530,000 g of the oxidation-type dye precursor is included relative to the dry weight of 1 g of nanocellulose. A method for preparing a hair dye composition with improved color retention, comprising mixing nanocellulose having a diameter of 0.1 to 200 nm and an oxidized dye precursor to the hair dye composition,
The oxidation-type dye precursor is included in an amount of 0.05 to 5% by weight based on the total weight of the hair dye composition,
The hair dye composition is a method for producing a hair dye composition, characterized in that for improving water loss of dyed hair.

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