CN112618385B

CN112618385B - Gel soap composition and preparation method thereof

Info

Publication number: CN112618385B
Application number: CN202010122320.XA
Authority: CN
Inventors: 郑然太; 姜秉夏
Original assignee: Cosmax Inc
Current assignee: Cosmax Inc
Priority date: 2019-09-24
Filing date: 2020-02-27
Publication date: 2023-09-19
Anticipated expiration: 2040-02-27
Also published as: KR20210035625A; CN112618385A; KR102321599B1

Abstract

The present invention relates to gel soap compositions and methods of making the same. More particularly, the present invention relates to a gel soap composition prepared using a plant-derived additive, which improves the internal content run-off phenomenon and the content shrinkage phenomenon occurring in the existing gel soap. The gel soap composition of the present invention has good strength, elasticity and bubble generating force, and has small skin irritation and good use feeling.

Description

Gel soap composition and preparation method thereof

[ field of technology ]

The present invention relates to gel soap compositions and methods of making the same.

[ background Art ]

In general, soaps in solid form are classified into fatty acid soaps in which oils and fats or fatty acids are saponified with alkali, and synthetic surfactant soaps in which fatty acids are used as main washing ingredients and surfactants are used as auxiliary washing ingredients. Although the fatty acid soap has advantages of low cost, simple and convenient manufacture, good hardness, and less tendency to become soft and abrasion-resistant, the aqueous solution thereof is alkaline, and excessively removes sebum component of skin and softens horny layer, so that skin becomes dry and loses elasticity, thereby making skin easily rough or causing skin irritation.

Korean laid-open patent No. 10-2004-0053807 discloses a human body cleansing soap using gelatin (gelatin) which uses a surfactant as a main component to manufacture a jelly-shaped human body cleansing soap using gelatin. The gel form is hardly irritating even when used directly on the skin, and the main component is a surfactant, so that the gel has good moisture retention and feel in use. Although the gel-form soap has such an advantage, the water-soluble substance trapped therein has a disadvantage that it flows out due to an osmotic pressure phenomenon caused by a concentration difference, and also has a problem that the content is reduced in a short time due to evaporation of the water component. Further, the strength and elasticity are insufficient, and the rubber is broken when used, so that the rubber is difficult to be used continuously.

[ Prior Art literature ]

[ patent literature ]

Patent document 0001: korean laid-open patent publication No. 10-2004-0053807

[ invention ]

[ problem ] to be solved

The present invention aims to improve the internal content flow-out phenomenon and the content shrinkage phenomenon which occur in the existing gel soap, and aims to develop a gel soap composition having good strength and elasticity. As a result, the present invention has been accomplished by overcoming the drawbacks of conventional gel soaps by adjusting the combination and content of gelling agents capable of forming gels, and developing a gel-form soap having excellent bubble generating ability and less skin irritation.

It is therefore an object of the present invention to provide a gel soap composition.

It is another object of the present invention to provide a method of preparing a gel soap composition.

[ means for solving the technical problem ]

According to one embodiment of the present invention, the present invention relates to a gel soap composition comprising: 1 to 5% by weight of a gelling agent of more than 2 types selected from iota carrageenan, kappa carrageenan and tamarind gum; 10 to 35 wt% of a humectant; 10 to 35 wt% of a synthetic surfactant; the balance being purified water.

The present invention aims to improve the internal content flow-out phenomenon and the content shrinkage phenomenon which occur in the existing gel soap, and aims to develop a gel soap composition having good strength and elasticity. As a result, the present inventors have developed a gel-form soap having excellent bubble generating ability and less skin irritation by overcoming the drawbacks of conventional gel soaps by adjusting the combination and content of a gel-forming agent.

In one embodiment of the present invention, the gelling agent may be carrageenan, guar gum, locust bean gum, tamarind gum, agar, alginate, xanthan gum, gellan gum, gum arabic, pectin, glucomannan, sodium alginate, cellulose derivatives, gelatin, or combinations thereof. The above-mentioned gelling agents may comprise 1 to 5% by weight of the total weight of the gel soap composition.

In another embodiment of the present invention, the above-mentioned gelling agent may be a combination of 2 or more selected from the group consisting of: carrageenan, guar gum, locust bean gum, tamarind gum, agar, alginate, xanthan gum, gellan gum, acacia gum, pectin, glucomannan, sodium alginate, cellulose derivatives and gelatin.

In a specific embodiment of the present invention, the above-mentioned gelling agent may be a combination of 2 or more selected from iota carrageenan, kappa carrageenan and tamarind gum.

According to a more specific embodiment of the present invention, a combination of 1.0 to 4.0% by weight iota carrageenan, 0.1 to 1.0% by weight kappa carrageenan and 0.1 to 1.0% by weight tamarind gum may be used as a gelling agent. For example, iota carrageenan at 3.0 wt%, kappa carrageenan at 0.5 wt% and tamarind gum at 0.5 wt% may be used.

When the above-mentioned gelling agent is contained in an amount of less than 0.5% by weight in the gel soap composition of the present invention, the soap composition does not form a gel well, and the moisturizing power, foaming power and the like are reduced. Further, when the above-mentioned gelling agent is more than 10% by weight, the detergency may be lowered, and thus the use in the above-mentioned range is preferable.

In the present invention, the humectant may be glycerin, propylene glycol, butylene glycol, polyethylene glycol, sorbitol, mannitol, or a combination thereof. For example, glycerol may be used.

The humectant may comprise 10 to 35 wt%, 10 to 33 wt%, 10 to 31 wt%, 15 to 35 wt%, 15 to 33 wt%, 15 to 31 wt%, 20 to 35 wt%, 20 to 33 wt%, 20 to 31 wt%, 25 to 35 wt%, 25 to 33 wt%, 25 to 31 wt%, 27 to 35 wt%, 27 to 33 wt%, 27 to 31 wt%, 29 to 35 wt%, 29 to 33 wt% or 29 to 31 wt% based on the total weight of the gel soap composition. For example, 30 wt% may be present.

In the gel soap composition of the present invention, when the humectant is contained in an amount of less than 5% by weight, it is difficult to expect a moisturizing effect, and when it is contained in an amount of more than 50% by weight, the moisturizing effect and the softness of the hydrogel are excellent, but the content thereof may flow out or the strength thereof may be lowered, so that the use in the above range is preferable.

In the present invention, the synthetic surfactant may be a sulfate type surfactant, an amino acid type surfactant, a sulfosuccinic acid type surfactant, a betaine type surfactant, an amphodiacetate type surfactant, or a combination thereof.

The sulfate surfactant may be ammonium laureth sulfate, ammonium lauryl sulfate, sodium laureth sulfate, TEA laureth sulfate, or a combination thereof; the amino acid surfactant can be sodium lauroyl glutamate, disodium lauroyl glutamate, TEA salt of cocoyl glutamate, sodium cocoyl alaninate, sodium cocoyl malate or a combination thereof; the above sulfosuccinic acid surfactant may be disodium sulfosuccinate, disodium lauroyl sulfosuccinate, or a combination thereof; the betaine surfactant can be cocoamidopropyl betaine, lauramidopropyl betaine or a combination thereof; the amphoteric diacetate surfactant can be cocoyl amphoteric disodium diacetate, lauroyl amphoteric disodium diacetate or a combination thereof.

According to an embodiment of the present invention, the surfactant may be sodium laureth sulfate.

The surfactant may comprise 10 to 35 wt%, 10 to 33 wt%, 10 to 31 wt%, 15 to 35 wt%, 15 to 33 wt%, 15 to 31 wt%, 20 to 35 wt%, 20 to 33 wt%, 20 to 31 wt%, 25 to 35 wt%, 25 to 33 wt%, 25 to 31 wt%, 27 to 35 wt%, 27 to 33 wt%, 27 to 31 wt%, 29 to 35 wt%, 29 to 33 wt%, or 29 to 31 wt% based on the total weight of the gel soap composition. For example, 30 wt% may be present.

In the gel soap composition of the present invention, purified water may comprise 25 to 50 wt%, 25 to 45 wt%, 25 to 40 wt%, 30 to 50 wt%, 30 to 45 wt%, 30 to 40 wt%, 35 to 50 wt%, or 35 to 45 wt% based on the total weight of the gel soap composition. For example, the amount of the purified water may be 35 to 40% by weight, but the amount is not limited thereto, and the remaining components may be the purified water.

According to the examples of the present invention, a gel soap composition was prepared by mixing 3.0% by weight of iota carrageenan, 0.5% by weight of kappa carrageenan, 0.5% by weight of tamarind gum as a gelling agent, and then adding 30% by weight of glycerin as a humectant, 30% by weight of sodium laureth sulfate as a surfactant, and the balance of purified water, and the water loss phenomenon and shrinkage phenomenon were remarkably reduced, and it was confirmed that it has good elasticity.

The gel soap composition of the present invention can be prepared as a cosmetic composition.

The gel soap composition of the present invention may further comprise ingredients commonly used in cosmetic compositions, for example, may comprise usual adjuvants such as antistaling agents, antioxidants, stabilizers, solubilizers, vitamins, pigments and fragrances.

According to another embodiment of the present invention, the present invention relates to a method for preparing a gel soap composition comprising: a mixing step of mixing at least 2 kinds of gelling agents selected from iota carrageenan, kappa carrageenan and tamarind gum into a humectant; a first dissolution step of mixing purified water into the product of the above mixing step and dissolving at a temperature of 50 to 80 ℃; a second dissolution step of mixing a synthetic surfactant into the product of the first dissolution step and dissolving at a temperature of 50 to 80 ℃; and a cooling step, wherein the products of the second dissolution step are mixed and cooled.

In the present invention, the above-mentioned gelling agent may be 1 to 5% by weight based on the total weight of the gel soap composition.

The humectant may comprise from 10 to 35% by weight based on the total weight of the gel soap composition.

In the present invention, the synthetic surfactant may be a sulfate type surfactant, an amino acid type surfactant, a sulfosuccinic acid type surfactant, a betaine type surfactant, an amphodiacetate type surfactant, or a combination thereof. For example, sodium laureth sulfate may be used.

The surfactant may comprise from 10 to 35 wt% based on the total weight of the gel soap composition.

According to an embodiment of the present invention, a gel-form soap composition is prepared by mixing a gel in a humectant, then adding purified water and dissolving at a temperature of 50 to 80 ℃, then mixing a synthetic surfactant thereto and dissolving at a temperature of 50 to 80 ℃, then mixing the product of the dissolution step and cooling at normal temperature.

The above-mentioned dissolution may be carried out at a temperature of 50 to 80 ℃, 50 to 75 ℃, 55 to 80 ℃, 55 to 75 ℃, 60 to 80 ℃, 60 to 75 ℃, 65 to 80 ℃ or 65 to 75 ℃. For example, it may be carried out under a temperature condition of 70 ℃.

The above-mentioned mixing can be performed using a mixer such as a mixer (homomixer) which is generally used in the art.

The time and speed (rpm) of the above-mentioned mixing may be varied depending on the temperature around the working site, the capacity of the mixer, etc., and for such stirring and mixing, one of ordinary skill in the art may suitably perform such stirring and mixing according to experience or instructions of the manufacturer of the mixer.

In the above-mentioned method for producing a gel soap composition, in order to avoid complicating the present description, the repetition of the description with the gel soap composition is omitted.

[ Effect of the invention ]

The present invention relates to a gel soap composition prepared by adjusting the combination and content of gel forming agents, which improves the internal content run-off phenomenon and the content shrinkage phenomenon occurring in the existing gel soap. The gel soap composition of the present invention has good strength, elasticity and bubble generating force, and has small skin irritation and good use feeling.

[ detailed description ] of the invention

Hereinafter, the present invention will be described in more detail with reference to examples. These examples are merely to more specifically illustrate the present invention, and the scope of the present invention according to the gist of the present invention is not limited to the examples, which should be apparent to those of ordinary skill in the art to which the present invention pertains.

[ example ]

Preparation examples 1 to 22: preparation of gel soap

[ PREPARATIVE EXAMPLES 1 to 14 ]

To observe the elasticity, processability, water loss phenomenon and shrinkage degree of the gel according to the kind and content of the gel dosage form, experiments were performed as follows.

The gel soap compositions of preparation examples 1 to 14 were prepared using iota-carrageenan, kappa-carrageenan or tamarind gum as gel dosage forms. According to the compositions of table 1, table 2 or table 3 below, after mixing the gel in the humectant, it was mixed with purified water, heated to 70 ℃ for dissolution, and then surfactant was mixed therein, heated to 70 ℃ for dissolution, and then cooled at normal temperature to prepare hydrogel soap. Experiments were performed using glycerin as the humectant and sodium laureth sulfate as the surfactant.

[ Table 1 ]

[ Table 2 ]

[ Table 3 ]

[ PREPARATIVE EXAMPLES 15 to 17 ]

The gel soap compositions of preparation examples 15 to 17 were prepared by mixing 2 or more types of iota-carrageenan, kappa-carrageenan and tamarind gum as gel dosage forms. According to the composition of the following table 4, after mixing the gel in the humectant, it was mixed with purified water, heated to 70 ℃ to be dissolved, and then surfactant was mixed thereto, heated to 70 ℃ to be dissolved, and then cooled at normal temperature to prepare hydrogel soap. Experiments were performed using glycerin as the humectant and sodium laureth sulfate as the surfactant.

[ Table 4 ]

[ PREPARATIVE EXAMPLES 17 to 23 ]

To observe the elasticity, processability, water loss phenomenon and shrinkage degree of the gel according to the content of the humectant and the content of the surfactant, experiments were performed as follows.

The gel soap compositions of preparation examples 17 to 23 were prepared using iota-carrageenan, kappa-carrageenan and tamarind gum in combination as gel formulations, using glycerin as a humectant, and sodium laureth sulfate as a surfactant. According to the composition of the following table 5 or 6, after mixing the gel in the humectant, it was mixed with purified water, heated to 70 ℃ to be dissolved, and then surfactant was mixed thereto, heated to 70 ℃ to be dissolved, and then cooled at normal temperature to prepare hydrogel soap.

[ Table 5 ]

[ Table 6 ]

Example 1. Evaluation of gel soap quality

[ 1-1 ] evaluation of quality of hydrogels prepared in preparation examples 1 to 14 ]

The quality of the hydrogel soaps prepared in preparation examples 1 to 14 was evaluated. The elasticity, the water loss phenomenon, and the shrinkage degree were evaluated by a 5-minute scale method with respect to 10 quality evaluators. At this time, the evaluation criteria were: 1, the method comprises the following steps: very poor, 2 points: difference, 3 points: generally, 4 points: excellent, 5 points: is very excellent.

As shown in table 7, the iota carrageenan alone as a hydrogel soap of the gelling agent exhibited relatively poor water loss and shrinkage although good elasticity and processability. Moreover, when iota-carrageenan is used in an amount of 5.0% by weight or more, the processability is significantly reduced and the water loss phenomenon is increased.

[ Table 7 ]

Items	Preparation example 1	Preparation example 2	Preparation example 3	Preparation example 4	Preparation example 5
						Elasticity of	2.5	3.0	3.5	4.1	4.3
Workability and workability of the product	4.2	4.2	4.1	4.0	2.5
						Phenomenon of water loss	2.0	2.4	3.3	3.6	3.0
Shrinkage of	2.2	2.6	2.8	3.3	3.5

As shown in Table 8, the hydrogel soap using kappa-carrageenan alone as a gelling agent exhibited good water loss and shrinkage, but had relatively poor elasticity and processability. Further, when kappa-carrageenan is used in an amount of 5.0% by weight or more, the processability is remarkably lowered and the water loss phenomenon is increased.

[ Table 8 ]

Items	Preparation example 6	Preparation example 7	Preparation example 8	Preparation example 9	Preparation example 10
						Elasticity of	1.5	2.0	2.5	3.0	3.3
Workability and workability of the product	4.0	3.7	3.5	2.8	2.0
						Phenomenon of water loss	3.0	3.3	3.7	4.1	3.3
Shrinkage of	2.4	2.8	3.2	3.4	3.6

As shown in table 9, the hydrogel soap using tamarind gum alone as a gelling agent exhibited good water loss and shrinkage, but had relatively poor elasticity and processability. In addition, when the tamarind gum is used in an amount of 4.0 wt% or more, the elasticity is lowered, the workability is remarkably lowered, and when a strong physical force is applied, a fracture phenomenon occurs.

[ Table 9 ]

Items	PREPARATION EXAMPLE 11	Preparation example 12	Preparation example 13	PREPARATION EXAMPLE 14
					Elasticity of	2.0	2.8	3.5	3.1
Workability and workability of the product	4.0	4.1	4.1	3.0
					Water loss occurringElephant image	3.0	3.3	3.6	3.6
Shrinkage of	2.3	2.6	3.2	3.3

[ 1-2 ] evaluation of quality of hydrogels prepared in preparation examples 15 to 17 ]

The quality of the hydrogel soaps prepared in preparation examples 15 to 17 was evaluated. The elasticity, the water loss phenomenon, and the shrinkage degree were evaluated by a 5-minute scale method with respect to 10 quality evaluators. At this time, the evaluation criteria were 1:: very poor, 2 points: difference, 3 points: generally, 4 points: excellent, 5 points: is very excellent.

As shown in table 10, when iota-carrageenan of 3.0 wt% and kappa-carrageenan of 1.0 wt% were used together as a gelling agent, although the elastic and water loss phenomena were excellent, the processability was lowered; when iota-carrageenan 3.0% by weight and tamarind gum 1.0% by weight were used together as a gelling agent, although the elasticity and processability were good, the water loss phenomenon was relatively poor; further, when iota-carrageenan in an amount of 3.0% by weight, kappa-carrageenan in an amount of 0.5% by weight, and tamarind gum in an amount of 0.5% by weight were used together as a gelling agent, it was confirmed that the excellent properties of elasticity, processability, and water loss were exhibited.

[ Table 10 ]

Items	Preparation example 15	PREPARATION EXAMPLE 16	Preparation example 17
				Elasticity of	3.8	3.9	3.9
Workability and workability of the product	3.3	4.0	4.0
				Phenomenon of water loss	3.8	3.6	3.8
Shrinkage of	3.3	3.3	3.3

[ 1-3 ] evaluation of quality of hydrogels prepared in preparation examples 17 to 23

As shown in Table 11, as the content of the humectant increases, the elasticity increases, and the water loss phenomenon and shrinkage phenomenon decrease. When 40 wt% or more of the humectant is used, the water loss phenomenon and shrinkage phenomenon are drastically increased, and the stability is reduced.

[ Table 11 ]

Items	PREPARATION EXAMPLE 18	Preparation example 17	Preparation example 19	Preparation example 20
					Elasticity of	3.5	3.9	4.3	4.3
Phenomenon of water loss	3.6	3.8	4.0	2.5
					Shrinkage of	3.3	3.3	3.5	3.0
Foam amount	3.7	3.7	3.7	3.7

As shown in Table 12, as the content of the surfactant increases, the elasticity and shrinkage phenomenon also relatively increases. When 40 wt% or more of the surfactant is used, the water loss phenomenon and the shrinkage phenomenon are drastically increased, and the stability is reduced.

[ Table 12 ]

Items	Preparation example 21	Preparation example 19	PREPARATION EXAMPLE 22	Preparation example 23
					Elasticity of	4.1	4.3	4.4	4.2
Phenomenon of water loss	4.1	4.0	4.0	2.7
					Shrinkage of	3.3	3.5	3.6	2.8
FoamMeasuring amount	3.3	3.7	3.9	4.0

In preparation example 22 of the present invention, a gel soap prepared by mixing 3.0% by weight of iota carrageenan, 0.5% by weight of kappa carrageenan, 0.5% by weight of tamarind gum as a gelling agent, and then mixing 30% by weight of a humectant, 30% by weight of a surfactant, and the balance of purified water therein exhibited the most excellent elasticity, the least water loss phenomenon, and the shrinkage phenomenon, and thus exhibited the most excellent effect as a gel soap composition.

Claims

1. A gel soap composition comprising:

a gelling agent, the gelling agent comprising:

3.0% by weight iota carrageenan,

0.5% by weight kappa carrageenan, and

0.5% by weight of tamarind gum;

10 to 35% by weight of glycerol;

10 to 35 weight percent of sodium laureth sulfate; and

the balance of purified water.

2. The gel soap composition of claim 1, wherein the gelling agent further comprises guar gum, locust bean gum, agar, alginate, xanthan gum, gellan gum, acacia gum, pectin, glucomannan, gelatin, or a combination thereof.

3. The gel soap composition of claim 2, wherein the alginate is sodium alginate.

4. A method of preparing a gel soap composition comprising:

a mixing step of mixing a gelling agent into glycerin, the gelling agent comprising:

3.0% by weight iota carrageenan,

0.5% by weight kappa carrageenan, and

0.5% by weight of tamarind gum;

a first dissolution step of mixing purified water into the product of the above mixing step and dissolving at a temperature of 50 to 80 ℃;

a second dissolution step of mixing sodium laureth sulfate into the product of the first dissolution step and dissolving at 50-80 ℃; and

a cooling step, mixing the products of the second dissolving step and then cooling,

wherein the glycerin and sodium laureth sulfate each account for 10-35 wt% and 10-35 wt% of the total weight of the gel soap composition.