KR20070067544A - Transparent soap composition - Google Patents

Abstract

A transparent soap composition is provided to produce a transparent soap having improved hardness and mushing property without requiring an aging time. The transparent soap composition comprises (a) 20-50wt% of a soap, (b) less than 20wt% of at least one surfactant, (c) 10-50wt% of at least one clarifying agent, and (d) 0.1-15wt% of at least C1-3 alkyl arylsulfonate. The soap is prepared by neutralizing a C10-24 fatty acid or a mixture of the fatty acids with an alkali metal hydroxide. The surfactant is selected from anionic, amphoteric, and non-ionic surfactants or mixtures thereof.

Description

Transparent soap composition

The present invention relates to a transparent soap composition. More specifically the present invention comprises sodium, potassium and ammonium xylene sulfonate, sodium, potassium and ammonium toluene sulfonate, sodium, potassium and ammonium cumene sulfonate alone or a mixture of one or more as C ₁ to C ₃ alkyl aryl sulfonates By providing a transparent soap composition excellent in hardness and softness improvement effect without requiring a aging period.

Transparent soaps have aesthetic appearance and have been marketed to consumers for many years because they are perceived to be milder than opaque soaps. In order to provide transparency, these soaps are generally prepared by adding polyhydric alcohols such as glycerin, sugars and triethanolamine as transparent agents, or by adding lower alcohols such as ethanol, and then volatilizing components to volatilize the molding to some extent. It is manufactured by the process of ripening until it turns into the quantity.

Korean Laid-Open Patent No. 0232692 is a water-soluble organic solvent (propylene glycol, dipropylene glycol, butyl) selected from the group consisting of a water-soluble organic polyol and a mixture of a water-soluble organic polyol and urea in a soap mainly composed of sodium soap and a synthetic surfactant. Ethylene glycol, glycerin and ethylene glycol, sorbitol, glycerol, mono-, di- and triethanolamine, 2-amine-1-butanol and the like) to suppress crystals and induce fine crystals to prepare a transparent soap. It is starting. However, the above-mentioned transparent soap is excellent in transparency and usability, while the swelling property is high, so it is easy to fall off during use, and when triethanolamine is included, there is a problem of discoloration of brown color by sunlight.

In addition, Japanese Patent Application Laid-Open No. 81-116800 uses fatty acid soap as a periodic agent, dissolves an excess of alcohol and a clearing agent such as polyhydric alcohols such as sugar, glycerin, sorbitol, and the like, and then cools and solidifies and dried the water. And a method of preparing transparent soap by evaporating volatile components such as and ethanol. While the transparent soap according to the above method is excellent in physical properties, it is possible to produce the finished product only by processing the surface, there is a disadvantage that takes a lot of work space and drying time to dry.

Accordingly, the present inventors have conducted a number of studies and experiments to solve the above-mentioned problems, so that without using volatile alcohol, sodium, potassium and ammonium xylene sulfonate, sodium, potassium and ammonium toluene sulfonate, sodium, By using C ₁ to C ₃ alkyl aryl sulfonates selected from potassium and ammonium cumene sulfonate alone or in combination thereof, it has been found that transparent soaps with improved hardness and softness can be produced without requiring a maturation period. The present invention has been completed.

The invention relates to a) 20-50% by weight of soap, b) less than 20% by weight of one or more surfactants, c) 10-50% by weight of one or more clearing agents, and d) 0.1 or more C ₁ -C ₃ alkyl aryl sulfonates 0.1 It relates to a transparent soap composition comprising from 15% by weight.

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

(a) In the present invention, the soap may be prepared by neutralizing a C ₁₀ to C ₂₄ fatty acid, preferably a C ₁₂ to C ₁₈ fatty acid or a mixture of fatty acids with an alkali metal hydroxide. Suitable compounds for neutralizing can be sodium, potassium, or mixtures thereof. The content of soap in the transparent soap composition is 20 to 50% by weight, preferably 30 to 40% by weight. If the content of the soap is less than 20% by weight may be reduced hardness and softness, when the content of more than 50% by weight may be too high hardness or transparency may be reduced.

(b) In the present invention, the surfactant may be selected from anionic, amphoteric and nonionic surfactants or mixtures thereof. Preferably the content of synthetic surfactant does not exceed 20% by weight.

Anionic surfactants that may be used in the present invention may be conventional anionic surfactants, for example C ₈ to C ₂₂ alkyl radicals, and alkyl ether sulfates, alkyl sulfonates, alkyl succinates, alkyl sulfosuccinates, Alkyl and acyl sarcosinates, sulfoacetates and alkyl phosphates.

Suitable amphoteric surfactants can be defined as derivatives of aliphatic quaternary ammonium, phosphonium and sulfonium compounds, wherein the aliphatic radicals can be straight and branched chains. Still other amphoteric surfactants may be cocoamidopropyl betaine, carboxymethyl betaine, amidosulfo betaine based on higher alkyl betaines.

Suitable nonionic surfactants can be defined as aliphatic alcohols, acids, amides or compounds produced by condensation of alkyl phenols with alkylene oxides.

(c) In the present invention, the transparent agent is a polyhydric alcohol including glycerol, ethylene glycol, propylene glycol, dipropylene glycol, sorbitol, mannitol, xylitol, or the like, or a sugar or fructose comprising a fructose. Can be used. The content of the clearing agent in the transparent soap composition is 10 to 50% by weight, preferably 20 to 40% by weight. If the content of the clearing agent is less than 10% by weight, transparency may be lowered. If the content of the clearing agent is greater than 50% by weight, the hardness may be lowered, or sweating or turbidity may occur under high temperature and high humidity conditions.

(d) In the present invention, the C ₁ to C ₃ alkyl aryl sulfonate is sodium, potassium and ammonium xylene sulfonate, sodium, potassium and ammonium toluene sulfonate, sodium, potassium and ammonium cumene sulfonate alone or one or more It can be mixed and used. Suitable C ₁ to C ₃ alkyl aryl sulfonates for use in the present invention include sodium xylene sulfonate and sodium cumene sulfonate, or mixtures thereof. These preferred C ₁ to C ₃ alkyl aryl sulfonates are about 0.1 to 15% by weight, preferably 1 to 10% by weight. If the content is less than 0.1% by weight, the effect of improving hardness and softness may be reduced. If the content is more than 15% by weight, the hardness may be excessively high or transparency may be reduced.

Moreover, the following components can be mix | blended arbitrarily in the transparent soap composition of this invention in the range which does not impair the above-mentioned effect. The optional components may be, but are not limited to, moisturizers, pigments, perfumes, chelating agents, ultraviolet absorbers, antioxidants and fungicides.

Hereinafter, examples of the present invention will be described. The following examples are only for illustrating the present invention is not limited to the scope of the present invention.

Example  1 to 5 and Comparative example  1 to 3

Each composition (unit: weight%) of Table 1 was mixed, heated at 75-80 degreeC, and it stirred until it became a transparent liquid phase. The mixture was cooled to 65 to 70 ° C., 1.0% by weight of fragrance was mixed and stirred uniformly, and then poured into a mold of a certain shape to cool and solidify to prepare a transparent soap.

TABLE 1

ingredient Example 1 Example 2 Example 3 Example 4 Example 5 Comparative Example 1 Comparative Example 2 Comparative Example 3 Sodium Soap 35 35 35 35 35 35 35 35 glycerin 15 15 15 15 15 15 15 15 Propylene glycol 8 8 8 8 8 8 8 8 Sorbitol 10 10 10 10 10 10 10 10 Sodium Laureth (3) sulfate 7 7 7 7 7 7 7 7 Sodium Xylene Sulfonate (40%) One 5 10 - 3 - 20 - Sodium Cumene Sulfonate (40%) - - - 5 3 - - 20 Tetrasodium ID 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 incense One One One One One One One One Purified water To 100 To 100 To 100 To 100 To 100 To 100 To 100 To 100

Experimental Example

(1) transparency evaluation

Transparent soaps of Examples 1 to 5 and Comparative Examples 1 to 3 were cut to a thickness of 20 mm, and the transmittance was measured using a Spectro Color Meter SE 200 using the sample.

(2) hardness evaluation

Soap hardness, that is, hardness (hardness) was measured using a Fudoh Rheo Meter. The maximum load value was measured by applying the center of the transparent soap to a 20 mm / min speed up to 20 mm using a tip-type adapter.

(3) evaluability

Soapiness of the soap was evaluated by measuring the absorbency. Put the weight of the soap (W ₁ ) into a pin of known weight and immersed in a 25 ℃ constant temperature water bath for 4 hours, and then taken out and dried for 1 hour at room temperature (W ₂ ) as the weight after absorption, Absorbance was calculated by Formula 1.

(Calculation 1)

% Absorption = (W ₂ W ₁ ) / W ₁ × 100

Absorption means that the larger the value is, the greater the ability to contain water, so that the physical properties are poor. If the value is negative, the soap is dissolved in water. Therefore, the absorbance is a positive value, and the closer to 0, it is not soft, which means that it is excellent.

(4) Evaluation of working process period (aging period after manufacture)

After the preparation, the time taken to solidify after the injection into the mold was measured.

The results measured according to the method are listed in Table 2 below.

TABLE 2

ingredient Example 1 Example 2 Example 3 Example 4 Example 5 Comparative Example 1 Comparative Example 2 Comparative Example 3 transparency 30.5 34.1 32.1 35.3 37.1 25.1 3.3 4.6 Hardness 1.20 1.45 1.59 1.38 1.48 1.08 2.18 2.05 Absorbance 15.4 12.8 7.8 11.5 10.6 24.8 4.6 6.9 Aging period (hour) 8 h 6 h 5 h 6 h 6 h ～ 16h 4 h 4 h

In Table 2, the transparent soap composition of the present invention (Example 1-5) is a C ₁ ~ C ₃ alkyl aryl sulfonate is sodium xylene sulfonate and sodium cumene sulfonate by using alone and mixed, the hardness of the transparent soap And it can be confirmed that can improve the softness, can shorten the maturation period. However, the soap composition (comparative example 2-3) using 20 wt% (more than 15 wt%) of C ₁ to C ₃ alkyl aryl sulfonate may be confirmed that the hardness is too high and the transparency is significantly reduced.

According to the invention Transparent soap composition is C ₁ ~ C ₃ alkyl aryl sulfonate is the sodium, potassium and ammonium xylene sulfonates, sodium, potassium and ammonium toluene sulfonate, sodium and potassium in a transparent soap according to the cleaning elements the main soap and a surfactant and By using ammonium cumene sulfonate alone or in admixture of one or more, it is possible to produce a transparent soap which is improved in hardness and softness, which does not easily recede by water absorption during use and does not require a aging period.

Claims (5)

a) 20-50% by weight of soap, b) less than 20% by weight of one or more surfactants, c) 10-50% by weight of one or more clearing agents, and d) 0.1-15% by weight of one or more C ₁ -C ₃ alkyl arylsulfonates Transparent soap composition comprising%. The clear soap composition of claim 1 wherein the C ₁ to C ₃ alkyl aryl sulfonate is sodium, potassium and ammonium xylene sulfonate, sodium, potassium and ammonium toluene sulfonate, sodium, potassium and ammonium cumene sulfonate or mixtures thereof. . The transparent soap composition of claim 1 or 2, wherein the content of the C ₁ to C ₃ alkyl aryl sulfonate is 1 to 10% by weight. The method of claim 1 wherein the soap is prepared by neutralizing C ₁₀ to C ₂₄ fatty acids or mixtures of fatty acids with alkali metal hydroxides, wherein the surfactant is selected from anionic, amphoteric and nonionic surfactants or mixtures thereof. Transparent soap composition that is selected. The method of claim 1, wherein the clearing agent is a polyhydric alcohol including glycerin, ethylene glycol, propylene glycol, dipropylene glycol, sorbitol, mannitol, xylitol, or a sugar including fructose, or a mixture of one or more thereof. Transparent soap composition.