KR20220028470A - Leave-on type hair conditioning composition - Google Patents

Abstract

The present invention relates to a leave-in hair conditioning composition. The leave-in hair conditioning composition according to the present invention comprises: polyacrylate-13; xanthan gum; and a crosspolymer of acrylic acid and C10-30 alkyl acrylate. Furthermore, the leave-in hair conditioning composition makes the hair silky and soft in spite of the high content of oily ingredients, and exhibits improved formulation stability, especially during high temperature and freeze-thaw storage.

Description

Leave-on type hair conditioning composition

The present invention relates to a leave-on-type hair conditioning composition having excellent conditioning effect and durability of the conditioning effect, and improved stability of the formulation in high temperature and freeze-thaw storage even when it contains a high content of oily ingredients.

According to exposure to the external environment, hair is damaged by contamination such as ultraviolet rays and fine dust, chemical damage such as frequent perming, dyeing and discoloration, and physical damage by combing. Damaged hair is easily broken, split, tangled and stiff, so it is difficult to comb, and its luster is reduced, which can make the hair look frizzy and have a bad appearance. Therefore, in order to improve the appearance and feel of the hair and make the hair healthy, products that save time, are easy to use, and provide immediate softness are more preferred.

There are oil-based hair conditioning products that use high-viscosity dimethicone gum and low-viscosity dimethicone or cyclopentasiloxane together among hair cosmetics that are applied directly to the hair without rinsing. It is difficult to contain the same water-based type of hair improvement ingredient, absorption is slow, and the inconvenience of having to wash your hands after use.

In addition, among hair cosmetics that are applied directly to the hair without rinsing, the aqueous emulsion type hair cosmetics have less stickiness on the hands after use and are convenient to use, but the smoothness or softness of the hair after use decreases over time. . In addition, severely damaged hair has a problem in that it is difficult to achieve a sufficient feeling of hairdressing, softness, and shine. there is.

In order to solve the above problems, the present invention provides a leave-on hair conditioning composition with excellent conditioning effect and durability of the conditioning effect, and improved stability of the formulation in high temperature and freeze-thaw storage even if it contains a high content of oily ingredients It aims to provide

In order to achieve the object of the present invention, the present invention provides polyacrylate-13, xanthan gum and a cross of acrylic acid having 3,000 to 13,000 cP at 0.2% by weight (solvent water, 25° C.) and C _10-30 alkyl acrylate It provides a leave-on hair conditioning composition comprising a polymer.

The leave-on hair conditioning composition according to the present invention has an excellent conditioning effect of imparting softness, smoothness, shine, etc. to damaged hair, and the conditioning effect lasts longer than that of a conventional composition. In addition, even if it contains a high content of oily components, formulation stability is excellent even during long-term storage at high temperature and freeze-thaw.

Hereinafter, the present invention will be described in more detail. However, this is for description of the present invention and should not be construed as limiting the scope of the present invention.

The present invention provides a hair conditioning composition comprising polyacrylate-13, xanthan gum and a crosspolymer of acrylic acid and C _10-30 alkyl acrylate having 3,000 to 13,000 cP at 0.2% by weight (solvent water, 25° C.) do.

The hair conditioning composition may further include an oily component.

The leave-on hair conditioning composition contains 0.01 to 5% by weight of polyacrylate-13, 0.01 to 1% by weight of xanthan gum, and 0.01 to 1% by weight of a crosspolymer of acrylic acid and _C10-30 alkyl acrylate, based on the total weight. It is characterized in that the oily component is contained in an amount of 10 to 30% by weight.

The polyacrylate-13 is a copolymer formed by polymerizing acrylic acid, acrylamide, sodium acrylate and sodium acryloyldimethyltaurate. The polyacrylate-13 acts as a thickener and has excellent water-retaining ability and is widely used for moisturizing, has excellent emulsification ability for oil with a smooth feeling of use, and can be applied in a wide pH range. In addition, it is used as a film agent because it has good water resistance in the form of an emulsion in water.

The polyacrylate-13 may be included in an amount of 0.01 to 5% by weight, preferably 0.1 to 2% by weight, based on 100 parts by weight of the total composition. When added below the above range, the viscosity is lowered and the spreadability and formulation stability of the hair are deteriorated.

The xanthan gum is a natural polymer, a polysaccharide extracted from carbohydrate fermentation, extracted from glucose or corn syrup, and is used as a binder, emulsion stabilizer, skin conditioning agent, thickener, and the like. The xanthan gum of the present invention has an average molecular weight of 1,000,000 to 5,000,000 Da.

According to an embodiment of the present invention, the xanthan gum may be included in an amount of 0.01 to 1% by weight based on 100% by weight of the total composition. If it is added below the above range, there is no effect of emulsion stabilization, and if it exceeds the above range, the feeling of use becomes damp and sticky, which may inhibit the softness of the hair.

The cross-polymer of acrylic acid and C _10-30 alkyl acrylate can be expressed as acrylate/C _10-30 alkyl acrylate cross-polymer, and is used as an emulsion stabilizer, thickener, etc., without the restriction of HLB and in a wide pH range. It also has excellent stability. The acrylate/C _10-30 alkyl acrylate crosspolymer has a viscosity of about 3,000 to 13,000 cP at 25° C. when 0.2 wt % (water solvent).

According to an embodiment of the present invention, the acrylate/C10-30 alkyl acrylate crosspolymer may be included in an amount of 0.01 to 1% by weight, preferably 0.05 to 0.4% by weight, based on 100% by weight of the total composition. When added in an amount of less than 0.01% by weight, it is difficult to stabilize the thickening effect and a large amount of oil, and when it exceeds 1% by weight, the feeling of use is stiff and the viscosity is high, and spreadability and smoothness of the hair may be deteriorated.

The oily component may include components commonly used in hair cosmetics such as silicone oil, vegetable oil, ester oil, high alcohol, fragrance, etc., which are well known in the art to improve hair conditioning and damage. there is. Specifically, silicone oils such as dimethicone, dimethiconol, cyclopentasiloxane, and cyclohexasiloxane, vegetable oils such as argan, coconut, and avocado may be used.

According to an embodiment of the present invention, the oily component may be included in an amount of 10 to 30% by weight based on 100% by weight of the total composition. When added below the above range, the conditioning effect or conditioning lasting power is insignificant, and exceeding the above range, the hair becomes clumpy and oily, and a larger amount of thickener and emulsion stabilizer is required, which may worsen the feeling of use.

The composition of the present invention may further contain ingredients commonly used in the manufacture of hair cosmetics, such as surfactants, fat substances, wetting substances, oils, fragrances, preservatives, vitamins and proteins.

Hereinafter, Examples and Comparative Examples of the present invention will be described. These Examples and Comparative Examples are only for illustrating the present invention, and the scope of the present invention is not limited thereto. That is, other modifications of the present invention may be permitted within the scope of those skilled in the art of hair care compositions without departing from the spirit and scope of the present invention.

All percentages in the present invention are percentages by weight of the total composition unless otherwise indicated and all ratios are by weight unless otherwise indicated. Unless otherwise indicated, all percentages, ratios and contents of ingredients mentioned herein are based on the actual amounts of the ingredients and do not include solvents, fillers, or other substances that may be combined with the ingredients in commercial products.

Examples 1-11 and Comparative Examples 1-11

According to the composition shown in [Table 1] to [Table 3], A), B) and C) acrylate/C _10-30 alkyl acrylate crosspolymer, xanthan gum were added and dispersed in purified water, and dimethicone, argan oil, Fragrance and polyacrylate-13 are added in order and stirred using a homomixer until a homogeneous phase is obtained. Finally, a pH adjuster was added to prepare the leave-on hair conditioning compositions of Examples 1-11 and Comparative Examples 1-11.

A) Acrylates: acrylic acid having 3,000 to 13,000 cP at 0.2% by weight (solvent water, 25° C.)

B) Acrylate: Acrylic acid with ~1,000 cP at 0.2 wt% (solvent water, 25°C)

C) Acrylate: Acrylic acid with 20,000 cP at 0.2% by weight (solvent water, 25° C.)

(Unit: % by weight) ingredient Example One 2 3 4 5 6 7 8 9 10 11 Polyacrylate-13 One 0.01 5 One One One One 0.1 2 One One xanthan gum 0.2 0.2 0.2 0.01 One 0.2 0.2 0.2 0.2 0.2 0.2 A) acrylate/C10-30 alkyl acrylate crosspolymer 0.2 0.2 0.2 0.2 0.2 0.01 One 0.4 0.05 0.2 0.2 dimethicone 18 18 18 18 18 18 18 18 18 25 9 argan oil 2 2 2 2 2 2 2 2 2 5 One incense appropriate amount appropriate amount appropriate amount appropriate amount appropriate amount appropriate amount appropriate amount appropriate amount appropriate amount appropriate amount appropriate amount pH regulator appropriate amount appropriate amount appropriate amount appropriate amount appropriate amount appropriate amount appropriate amount appropriate amount appropriate amount appropriate amount appropriate amount Purified water remaining amount remaining amount remaining amount remaining amount remaining amount remaining amount remaining amount remaining amount remaining amount remaining amount remaining amount

(Unit: weight ingredient Example 12 13 14 15 16 17 18 19 Polyacrylate-13 0.001 6 One One One One One One xanthan gum 0.2 0.2 0.001 2 0.2 0.2 0.2 0.2 Acrylate/C10-30 Alkyl Acrylate Crosspolymer 0.2 0.2 0.2 0.2 0.001 2 0.2 0.2 dimethicone 18 18 18 18 18 18 5 30 argan oil 2 2 2 2 2 2 One 5 incense appropriate amount appropriate amount appropriate amount appropriate amount appropriate amount appropriate amount appropriate amount appropriate amount pH regulator appropriate amount appropriate amount appropriate amount appropriate amount appropriate amount appropriate amount appropriate amount appropriate amount Purified water remaining amount remaining amount remaining amount remaining amount remaining amount remaining amount remaining amount remaining amount

(Unit: % by weight) ingredient comparative example One 2 3 4 5 6 7 8 9 10 11 Polyacrylate-13 - One One One One 0.01 0.01 5 5 One One xanthan gum 0.2 - 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.01 0.01 B) acrylate/C10-30 alkyl acrylate crosspolymer 0.2 0.2 0.2 0.2 C) acrylate/C10-30 alkyl acrylate crosspolymer 0.2 0.2 0.2 0.2 dimethicone 18 18 18 18 18 18 18 18 18 5 30 argan oil 2 2 2 2 2 2 2 2 2 One 5 incense appropriate amount appropriate amount appropriate amount appropriate amount appropriate amount appropriate amount appropriate amount appropriate amount appropriate amount appropriate amount appropriate amount pH regulator appropriate amount appropriate amount appropriate amount appropriate amount appropriate amount appropriate amount appropriate amount appropriate amount appropriate amount appropriate amount appropriate amount Purified water remaining amount remaining amount remaining amount remaining amount remaining amount remaining amount remaining amount remaining amount remaining amount remaining amount remaining amount

Experimental Example 1: Evaluation of usability

20 women in their 20s and 40s were selected and the leave-on hair conditioning compositions of Examples and Comparative Examples were used at least once a day for 1 week, and then evaluated according to the following evaluation criteria, and the results are shown in Table 4. .

- Evaluation standard

1: Very Bad, 2: Bad, 3: Average, 4: Good, 5: Very Good

Item Example
One Example
10 Example
11 Example
13 Example 18 Example 19 Formulation viscosity is convenient to use 4.2 3.9 4.1 3.4 3.6 3.5 Apply well to hair 4.2 4.0 4.1 3.4 3.6 3.4 soft after drying 4.5 4.0 3.7 3.4 3.6 3.4 Not greasy or sticky after use 4.2 3.8 4.3 3.4 3.7 3.3 Long lasting hair softness 4.3 3.9 3.6 3.4 3.6 3.7

Item comparative example One 2 3 4 5 6 7 8 9 10 11 Formulation viscosity is convenient to use 2.2 3.0 3.0 2.8 2.0 2.0 2.5 2.3 1.9 3.2 2.5 Apply well to hair 3.0 3.0 3.0 2.8 2.0 2.4 2.3 1.9 1.5 3.2 2.5 soft after drying 3.0 3.1 3.0 3.0 2.1 2.2 2.4 2.3 1.7 3.0 2.5 Not greasy or sticky after use 3.8 3.1 3.0 3.0 2.2 3.4 2.0 2.0 1.5 3.3 2.1 Long lasting hair softness 2.5 3.3 3.0 3.0 2.4 2.5 2.3 2.0 1.8 3.3 2.3

According to Tables 4 and 5, the hair 'D conditioning composition according to the embodiment using the crosspolymer of A) acrylate/C10-30 alkyl acrylate preferably used in the present invention is a B) type or C) type crosspolymer It is more convenient to use compared to using , and it has the effect of making the hair soft and soft after drying for a long time.

In addition, even when the same A) type cross polymer is used, Example 1 containing 1 wt% of polyacrylate-13 has a convenient formulation viscosity compared to Example 13 containing 6 wt% of polyacrylate-13 It was found to apply evenly to the hair and was not oily or sticky after use.

In addition, Example 1 was evaluated superiorly to Examples 18 and 19 in all items. When the content of the oily component exceeds 10 to 30% by weight, it was found that the softness of the hair decreased or showed a relatively oily characteristic after use. could

Experimental Example 2: Evaluation of the effect of improving freeze-thaw and high temperature stability

In order to evaluate the effect of improving freeze-thaw and high temperature stability of the compositions of Examples and Comparative Examples, viscosity was measured at 25° C. using a viscometer (Brookfield RVT) and formulation stability was confirmed, and the results are shown in Table 4. In the case of the formulation with poor stability, the oils tended to separate and the viscosity to decrease. The cycle conditions for freezing and thawing were -5°C to 25°C, and the viscosity was measured after repeating this cycle 20 times. Viscosity was measured after one month at 50 °C under high temperature conditions.

- Formulation stability observation: ○ stable, X unstable

evaluation product Example 1 Example 8 Example 9 Comparative Example 1 Comparative Example 2 Comparative Example 3 Viscosity (after 1 day of manufacture) (cPs) 40,040 17,240 63,960 5,080 38,640 39,200 Viscosity (frozen-thaw 20 times) (cPs) 38,120 15,120 63,000 Separation Separation Separation Viscosity (50℃ 1 month) 39,000 15,800 62,600 Separation 30,100 31,400 Formulation stability O O O X X X

As shown above, when polyacrylate-13, xanthan gum, and acrylate/C10-30 alkyl acrylate crosspolymer were all included, it was confirmed that the formulation stability was excellent under high temperature and freeze-thaw storage conditions.

Experimental Example 3: Evaluation of hair comb texture

In order to evaluate the hair conditioning efficacy of the compositions of Examples and Comparative Examples, comb texture evaluation was performed on wet and dry hair using Dia-Stron MTT175 (Hair Combing Accessory).

A hair tress of 18 cm in length and 10 g in weight was made from virgin hair of Asian women purchased from De-Meo Brothers in the United States, washed with 10% sodium laureth sulfate aqueous solution, rinsed with plenty of water, and dried completely. After cleaning, it was left in a constant temperature and humidity room for 2 hours, and the combing speed was set at 2000 mm/min, and the load taken during combing was measured. This was taken as the average measured load value at the time of untreated, and after treatment with the compositions of Examples and Comparative Examples, comb texture evaluation was performed in the manner described above. Three or more tresses were prepared for each composition, and the average value of the measured values was calculated by testing each tress 10 times.

After calculating the percentage (%) change in the measured average value after untreated/treated compositions for Examples and Comparative Examples, the results are shown in Table 7.

(unit: %) Evaluation items Example 1 Example 10 Example 11 Comparative Example 5 Comparative Example 7 Comparative Example 10 Comparative Example 11 Average load reduction rate -55 -49 -47 -44 -17 -29 -22

As shown in Table 7, the greater the reduction rate, the better the comb texture, so it can be seen that the leave-on hair conditioning composition using the A-type crosspolymer according to the present invention has an excellent conditioning effect compared to that using another type of crosspolymer. there is. It can be seen that the leave-on conditioning composition using the C-type crosspolymer has a lot of stickiness and clumping in the hair, so that the conditioning effect is rather reduced.

Claims (5)

Leave-on hair conditioning comprising polyacrylate-13, xanthan gum and a crosspolymer of C _10-30 alkyl acrylate with acrylic acid having 3,000 to 13,000 cP at 0.2 wt % (solvent water, 25° C.) composition. The method of claim 1,
The polyacrylate-13 is a leave-on hair conditioning composition, characterized in that it is contained in an amount of 0.01 to 5% by weight based on the total weight of the composition. The method of claim 1,
The conditioning composition for leave-on hair, characterized in that the xanthan gum is contained in an amount of 0.01 to 1% by weight based on the total weight of the composition. The method of claim 1,
The high molecular weight acrylic acid and C _10-30 crosspolymer of alkyl acrylate is a hair conditioning composition, characterized in that contained in 0.01 to 1% by weight based on the total weight of the composition. The method of claim 1,
Leave-on hair conditioning composition, characterized in that the composition contains 10 to 30% by weight of an oily component.