KR20060019659A - Liquid cleanser - Google Patents

Abstract

The present invention relates to a liquid human cleanser composition, and more particularly, a foaming power and usability by using a metal ion blocker in a liquid human cleanser based on a phosphate ester salt having low irritation to skin and hair and excellent in feeling. It relates to a liquid human cleanser composition which has been improved.

Phosphate Ester Salts, Surfactants, Metal Ion Blockers, Human Cleansers

Description

Liquid cleanser

The present invention relates to a liquid human cleanser composition, and more particularly, a foaming power and usability by using a metal ion blocker in a liquid human cleanser based on a phosphate ester salt having low irritation to skin and hair and excellent in feeling. It relates to a liquid human cleanser composition which has been improved.

The purpose of skin cleansing is to keep skin clean and healthy. However, in recent years, due to a combination of changes in the living environment, stress, etc. are increasing the sensitivity and atopic skin, the problem of safety as well as skin cleaning of the liquid human body cleaner has been emphasized. Research into new hypoallergenic surfactants with high safety is being actively conducted, and among the surfactants that have been used in the past, surfactants with relatively high safety are combined with other bases to improve the effect thereof.

Representative anionic surfactants used in liquid human cleansers include soaps that have been used for a long time, and recently, sulfate types such as alkyl sulfates and alkyl ester sulfates; Amino acid types such as acyl glutamine and glycine; Phosphoric ester type such as monoalkyl phosphate; And nonionics such as alkyl glycosides are used. Studies have been made on the relationship between the skin impairment such as skin dryness, skin primary irritation and the structure of the surfactant and the action factors of the active agents involved in these surfactants. Phosphate ester salt surfactants such as salts and myristyl phosphate ester salts are hypoallergenic to the skin and are excellent in rinsing properties and are used as human skin cleaners.

For example, Japanese Patent Publication No. 82-47959 (Korean Patent Publication No. 95-7004461) discloses a technique of using a mixture of monoalkyl phosphate and dialkyl phosphate in a composition ratio of 100: 0 to 80:20 as a cleaning agent. The detergent produced by this method has a disadvantage of poor bubble characteristics. In order to improve the disadvantage that the bubble properties are bad, Japanese Patent Publication No. 84-18440 used a mixture of fatty acid salts and polyethylene glycol of molecular weight 1,000 to 20,000 in the phosphate ester salt, but these components are effective to enhance the foaming ability On the other hand, the long-term stability is bad, and after use, the skin texture was not good.

In addition, Japanese Patent Application Laid-Open Nos. 83-101197, 83-103598, 84-74196, and 87-148599 disclose a technique of using a mixture of a phosphate ester salt-based surfactant and a synthetic surfactant. Since the active agent is adsorbed on the skin or hair, there is a disadvantage that the rinsing property is bad, such as a lot of slippery feeling and an unpleasant texture.

 Accordingly, the present inventors have been studied to provide a liquid human detergent composition of a phosphate ester salt-based surfactant formulation having excellent foaming ability while satisfying the neat rinsing property, soft feeling, and hypoallergenic properties required for the liquid human detergent. It was found that salt-based surfactants have a great influence on the foaming force by forming complexes with divalent metal ions, and the present invention was completed by using a metal ion blocking agent for suppressing such complex formation.

Accordingly, an object of the present invention is to use a phosphate ester salt-based surfactant and a metal ion blocking agent of a specific structure together to suppress the complex formation of phosphate and divalent metal ions to improve the foaming force, to maintain a fresh rinsing property, It is to provide a liquid human cleanser composition prepared so as not to affect the stability.

In order to achieve the above object, the liquid human detergent composition of the present invention contains a phosphate ester salt-based surfactant and a metal ion blocking agent.

The composition may further contain an amphoteric surfactant and a nonionic surfactant.

Hereinafter, each component which comprises the human detergent composition of this invention is demonstrated more concretely.

The phosphate ester salt surfactant used in the liquid human detergent composition of the present invention may be used alone or in combination thereof.

In the above, R ¹ , R ² and R ³ represent a straight or branched chain hydrocarbon group having 8 to 18 carbon atoms, particularly preferably 10 to 14 carbon atoms, X ¹ , X ² and Y may be the same or different. And a hydrogen atom, an alkali metal, ammonium or an alkanolamine having 2 to 3 carbon atoms, respectively. Especially in the case of liquid cleaners, potassium or amines are suitable.

In particular, when the compound of Formula 1 and Formula 2 are used in combination, the weight ratio of the two components is preferably used by mixing in a weight ratio of 100: 0 to 50: 50, the compound of Formula 2 than the compound of Formula 1 If you use a lot of bubble properties are worse and the skin penetration is increased to stimulate the skin. Here, the weight ratio of Formula 1 and Formula 2 is 80:20, and lauryl phosphate mixed with potassium and ammonium salts was used. The content of the phosphate ester salt surfactant is suitably 15 to 50% by weight, more preferably 17 to 30% by weight based on the total weight of the cleaning composition.

In the present invention, the metal ion sequestrant used to enhance the foaming power of the phosphate ester salt-based surfactant formulation is ethylenediaminetetraacetate of formula 3 and hydroxyethylidenediphosphate of formula 4 and trisodium phosphate (Na ₃ PO ₄ ) Etc., and the content thereof is suitably 0.3 to 5% by weight, more preferably 0.5 to 1% by weight based on the total weight of the cleaning composition.

In the above formula, R is hydrogen (H), sodium (Na) or potassium (K) atom.

In addition, the weight ratio of the metal ions blocker to the phosphate ester salt surfactant 1/150 to 1/3 are preferred.

Amphoteric surfactants used in the present invention are those having high surfactant activity, foaming power, and low irritation, such as coco ampocarboxypropionate, coco ampocarboxy propionic acid, coco ampoacetate, coco ampodiacetate (coco ampo) Carboxyglycinate) and sodium lauroampoacetate (sodium lauroampocarboxyglycinate) and the like can be used. Although the minimum content of the amphoteric surfactant is not critical, it is preferable to contain at least 0.2 to 10% by weight, more preferably 0.5 to 7% by weight, based on the total weight of the detergent composition in the content range that maintains the transparency of the water phase.

In addition, the liquid detergent composition according to the present invention may further contain a nonionic surfactant, for example, an aliphatic alcohol, sorbitan, sorbitol ester, alkylate polyglycoside amine oxide, alkanolamide, or the like may be used. More preferably, alkanolamide and alkylate polyglucosides are used. The content of the nonionic surfactant can be variously changed, and it is preferable to contain at least 0.5% by weight or more, and when it contains more than 10% by weight, there is no benefit in terms of intrinsic effect or price. Therefore, the nonionic surfactant is 0.5 to 10% by weight, preferably 0.75 to 7% by weight, more preferably 1 to 4% by weight.

On the other hand, the liquid human cleanser composition of the present invention may contain a pigment, preservatives, sunscreen, fragrance and the like within the range of maintaining stability.

Hereinafter, although an Example is given and this invention is demonstrated in detail, this invention is not limited only to these examples.

[Examples 1 to 4] Formulation according to the content of metal ion sequestrants

(Unit: weight%)

Raw material name Comparative Example 1 Comparative Example 2 Example 1 Example 2 Example 3 Purified water To 100 To 100 To 100 To 100 To 100 Mono lauyl phosphate / dilauryl phosphate (80/20) (SUNMAP-P; Advanced Chemistry) 17.5 17.5 17.5 17.5 17.5 Potassium Hydroxide (KOH) 8 8 8 8 8 Kocamido MEI (HISOL CME; Taedong Chemical) 3 3 - 3 3 Cogamidopropylbetaine (M-CA (S); Miwon Corporation) One One - One One Fiji-8 (P.E.G. # 400) One One - One One Ethylenediaminetetraacetate (EDTA-2Na) 0.0 0.1 0.5 0.5 1.0

Test Example 1 Bubble Force Comparison

A solution prepared in Comparative Examples 1-2 and Examples 1-3 was prepared by using a mechanical foam tester (a device for measuring bubble force through vertical rotation) by using purified water and tap water. To make a bubble was measured, the results are shown in Table 1 below.

1) Apparatus and apparatus: beaker, digital scale, glass cylinder, mechanical foam test apparatus

2) How to measure:

a) 50 g (1% solution) of the sample solution using 0.5 g of each of Comparative Examples 1-2 and Examples 1-3 containing purified water and tap water (containing 70-100 ppm of divalent metal ions such as Mg ²⁺ and Fe ²⁺ ) Sample).

b) The quantified solution was placed in a glass cylinder.

c) rotated 10 times using a mechanical foam test apparatus

d) The height of the bubble was measured after stopping the rotation.

e) The foaming force was measured as the following result (in mm).

Very good: 200 ~ 230 Excellent: 170 ~ 200

Normal: 130 ~ 170 Bad: 100 ~ 130

Very bad: 70-100

Item Comparative Example 1 Comparative Example 2 Example 1 Example 2 Example 3 Purified water 200 205 190 203 200 tap water 100 100 165 180 175

As can be seen in Table 1, according to the EDTA-2Na phosphorus content of the metal ion blocking agent (Comparative Examples 1 and 2, Examples 1 to 3) in the solution made using purified water, there was almost no difference in bubble power. In the solution made using tap water, the foaming force tended to increase with increasing EDTA-2Na content. In other words, it can be seen that the divalent ions contained in the tap water form a complex with the phosphate ester-based surfactant, thereby lowering the foaming force, and the metal ion blocking agent inhibits the formation of the complex, thereby preventing the foaming force from decreasing. there was.

Test Example 2 Comparison of Use

1) abundant air bubbles,

2) soft and smooth texture,

3) refreshing rinsing properties,

4) rough, pulled, dry (or moist)

5) Stimulation degree after use

Sensory evaluation was performed on five items. For evaluation, 40 women 20 to 40 years old were selected, and Comparative Examples 1 and 2 and Examples 1 to 3 were divided. The results are shown in Table 2 below.

Item Comparative Example 1 Comparative Example 2 Example 1 Example 2 Example 3 1) Abundant Bubble Power 2.7 2.9 3.2 3.6 3.5 2) soft and smooth texture 3.7 3.8 3.5 3.8 3.6 3) Fresh rinsing 4 4.1 4 3.9 4 4) Moist 3.5 3.4 3.3 3.6 3.4 5) Irritation degree (None: 1 / Severe: 5) 1.1 1.2 1.1 1.1 1.1 Very good: 5 points, Good: 4 points, Normal: 3 points, Bad: 2 points, Very bad: 1 point

As can be seen in Table 2, only the bubble power items showed a significant difference, there was almost no difference in other items.

Test Example 3 Stability Comparison

Comparative Examples 1 and 2 and Examples 1 to 3 were left at 7 days at daylight (UV), 45 ° C, and -5 ° C, respectively, and the stability was compared. The results are shown in Table 3 below.

Item Comparative Example 1 Comparative Example 2 Example 1 Example 2 Example 3 daylight 4.2 4.2 4.1 4.1 4.2 45 degrees 4 4.1 4.1 4.1 4.1 -5 degrees 4.2 4.1 4.1 4.1 4.1 Very good: 5 points, Good: 4 points, Normal: 3 points, Bad: 2 points, Very bad: 1 point

As can be seen in Table 3, the metal ion sequestrant did not significantly affect the stability.

In the present invention, a liquid human detergent composition using a phosphate ester salt-based surfactant having excellent foaming power without affecting the feeling of use or stability using a metal ion blocking agent was prepared.

Claims (6)

A liquid human cleanser composition containing at least one phosphate ester salt-based surfactant and a metal ion sequestrant selected from the compounds represented by Formulas 1 and 2 [Formula 1]

[Formula 2]

In the above, R ¹ , R ² and R ³ represent a straight or branched chain hydrocarbon group having 8 to 18 carbon atoms, X ¹ , X ² and Y may be the same or different, respectively, hydrogen atom, alkali metal, ammonium or carbon number 2 to 3 alkanolamines are shown. The composition according to claim 1, wherein the content of the phosphate ester salt surfactant is 15 to 50% by weight based on the total weight of the cleaning composition. The composition of claim 1, wherein the metal ion sequestrant is at least one compound selected from the group consisting of ethylenediaminetetraacetate, hydroxyethylidenediphosphate and trisodium phosphate. The composition according to claim 1, wherein the content of the metal ion blocking agent is 0.3 to 5% by weight based on the total weight of the cleaning composition. The composition of claim 1, wherein the weight ratio of the metal phosphate blocking agent to the phosphate ester salt surfactant is 1/150 to 1/3. The composition of claim 1, further comprising an amphoteric surfactant and a nonionic surfactant in the composition.