JP2935660B2 - Transparent soap composition - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transparent soap composition which can be produced in a short production period, has good transparency, prevents lack of transparency (devitrification) due to passage of time, and has an excellent cleaning effect.

[0002]

2. Description of the Related Art A conventional transparent soap is obtained by dissolving a soap material obtained by saponifying natural fats and oils (such as beef tallow and coconut oil) with caustic soda in a lower alcohol and water to obtain a transparent agent. Add transparent sugar dough prepared by adding sugar, glycerin, polyethylene glycol, etc. to heat it uniformly and transparently, pour it into a predetermined molding frame, take out, cut, chamfer, dry, then soak, stamp, shape, and shine. It is manufactured by repeating the manufacturing steps of drying. As described above, the production of a transparent soap using conventional natural fats and oils (such as beef tallow and coconut oil) requires many production steps and requires a long time. Further, conventional transparent soaps also have disadvantages such as devitrification with the passage of time.

[0003] Usually, beef tallow 50 to 80% by weight and coconut oil 50 to 20% by weight are generally used as constituent ratios of soap raw materials for solidification during production of transparent soap. However, beef tallow has a peculiar beast odor, and a peculiar odor remains in the obtained transparent soap material, causing drawbacks such as impairment of perfume fragrance and fragrance persistence.

[0004] Conventionally, a scrubbing agent has been blended into a facial cleanser or the like for the purpose of improving the efficiency of removing dirt during face washing and the massage effect. Conventional scrubbing agents are broadly classified into hard scrubbing agents such as polyethylene beads, crystalline cellulose, walnut husks and sawdust, and soft scrubbing agents such as agar, polyacrylates and alginates.

[0005] However, hard scrubbing agents often cause irritation or a foreign-body sensation during use, which has been a problem in terms of safety. On the other hand, many soft scrubbing agents swell in the preparation and adversely affect the drug system, or do not have a remarkable effect when used. Therefore, a new scrub agent having an appropriate hardness and being stable in the preparation has been required.

[0006] On the other hand, blending of enzymes such as lipase has been attempted for the purpose of enhancing the washing effect. However, when the enzyme is directly added to a preparation containing water, the effect is significantly reduced or lost.

To solve this problem, attempts have been made to chemically modify, immobilize, or encapsulate the enzyme. However, the chemically modified and immobilized enzyme has safety problems and the formulation to be applied is limited, and the encapsulated enzyme has problems such as capsule swelling and disintegration in the formulation.

Accordingly, the present inventors have conducted intensive studies in view of the various circumstances described above, and as a result, the following transparent soap composition has a reduced production period, good transparency, prevents devitrification with time, and has a cleaning effect. And found that the present invention was completed.

[0009] That is, an object of the present invention is to provide a transparent soap composition which can shorten the production period, has good transparency, prevents devitrification with time, and has an excellent cleaning effect.

[0010]

In order to achieve the above object, a first aspect of the present invention is a vegetable-derived plant having a melting point of 36 ° C to 44 ° C, a neutralization value of 215 to 235, and an iodine value of 31 to 45. A transparent soap composition comprising a fatty acid salt obtained by neutralizing a mixed fatty acid with an alkali metal hydroxide and an enzyme-encapsulated gelatin capsule.

The present invention also relates to a second aspect of the present invention wherein a mixed fatty acid containing 15 to 25% by weight of a saturated fatty acid having 12 carbon atoms and 25 to 45% by weight of an unsaturated fatty acid having 18 carbon atoms is formed by using an alkali metal hydroxide. 2. A fatty acid salt obtained by neutralization and a gelatin capsule containing an enzyme.
It is a transparent soap composition of the description.

A third aspect of the present invention is the transparent soap composition according to the first or second aspect, further comprising an anionic surfactant having alkanolamine as a counter ion.

[0013]

BEST MODE FOR CARRYING OUT THE INVENTION The vegetable-derived fatty acids of the present invention are palm oil, palm kernel oil, coconut oil, olive oil, camellia oil, kapok oil, bran oil, corn oil, sesame oil, safflower oil, soybean oil, tall oil, Rapeseed oil, cottonseed oil, peanut oil,
Constituent fatty acids such as sunflower oil and grape seed oil,
Mixing one or more of these, melting point is 36 ℃ ~ 44 ℃,
The neutralization value was adjusted to 215 to 235, and the iodine value was adjusted to 31 to 45.

When the melting point of the fatty acid defined in the present invention is lower than 36 ° C., devitrification occurs over time, and when it exceeds 44 ° C., transparency is poor. In addition, the measuring method of the melting point used in this invention applied "the fat and oil standard analysis test method" (published by the Ministry of International Trade and Industry data investigation committee) mutatis mutandis.

The neutralization value of the fatty acid defined in the present invention is 215
If it is less than 235, the transparency is inferior. If it exceeds 235, devitrification occurs over time. The method of measuring the neutralization value used in the present invention is described in "Fat and Oil Standard Analysis Test Method" (published by the Ministry of International Trade and Industry Data Research Committee)
Was applied mutatis mutandis.

The iodine value of the fatty acid defined in the present invention is 31.
If it is less than 45, the transparency is inferior. If it exceeds 45, devitrification occurs over time. The method for measuring the iodine value used in the present invention is described in "Fat and Oil Standard Analysis Test Method" (published by the Ministry of International Trade and Industry Data Research Committee).
Was applied mutatis mutandis.

In the present invention, the saturated fatty acid having 12 carbon atoms is 15 to 25% by weight, and the unsaturated fatty acid having 18 carbon atoms is 25 to 25% by weight in the total fatty acid composition obtained by mixing at least one vegetable-derived fatty acid.
The one adjusted to 45% by weight is preferable because it is effective for transparency and prevention of devitrification with time.

The enzyme-encapsulated gelatin capsule used as a scrub agent in the present invention is obtained by dispersing an enzyme or an immobilized enzyme in a specific oily base and then encapsulating with gelatin. Then, it is an enzyme-encapsulated gelatin capsule obtained by treating with an appropriate amount of an aldehyde such as acetaldehyde or propionaldehyde for insolubilization.

Enzymes Encapsulating Enzymes encapsulated in gelatin capsules include proteases, lipases, and murammitases. Further, an immobilized enzyme in which these enzymes are immobilized on a carrier such as silk fibroin, polyethylene glycol, or dextran is also included. The use of an immobilized enzyme is preferred because it improves the stability of the enzyme and has little effect on the capsule base.

The amount of the enzyme or the immobilized enzyme in the capsule is preferably 0.1 to 10% by weight based on the total amount of the gelatin capsule containing the enzyme. If the amount is less than 0.1% by weight, expression of the enzyme activity in the preparation containing the capsule cannot be expected. If it exceeds 10% by weight, encapsulation becomes difficult.

The internal solution used in the enzyme-encapsulated gelatin capsule may be any liquid oil, but is preferably liquid paraffin,
Squalane, cyclic dimethylpolysiloxane, dimethylpolysiloxane, methylphenylpolysiloxane and the like are preferred. These can be used alone or in combination of two or more.

The compounding amount is preferably 30 to 79.9% by weight based on the total amount of the enzyme-encapsulated gelatin capsule. If it is less than 30% by weight, it is difficult to uniformly disperse the enzyme,
If it exceeds 79.9% by weight, encapsulation becomes difficult.

The gelatin used in the enzyme-encapsulated gelatin capsule may be any gelatin used in pharmaceuticals, cosmetics and foods, and its origin and preparation method are not limited.

The compounding amount is preferably 20 to 60% by weight based on the total amount of the enzyme-encapsulated gelatin capsule. If it is less than 20% by weight, a stable capsule cannot be formed, and if it exceeds 60% by weight, the film is too thick, and it is difficult to obtain a film having an appropriate hardness.

The aldehyde used for the insolubilization treatment of the enzyme-encapsulated gelatin capsule may be one used in a usual synthesis reaction or the like, and its origin and preparation method are not limited.

The amount of treatment is preferably 0.1 to 3.0% by weight of the weight of the gelatin capsule containing the enzyme. If it is less than 0.1% by weight, the capsule is too soft, and the capsule disintegrates in the preparation when blended in a transparent soap composition and stored for a long time. When treated at a concentration of more than 3.0% by weight, the capsule is too hard, does not break down due to an appropriate physical stress when using the transparent soap composition, does not release the encapsulated enzyme, and is too hard as a scrubbing agent and is functionally functional. Not preferred. At the time of the insolubilization treatment, a solvent such as ethanol can be appropriately used in order to make the aldehyde act uniformly on the capsule surface.

The amount of the enzyme-encapsulated gelatin capsule is preferably 0.1 to 5.0% by weight based on the total amount of the transparent soap composition of the present invention. If it is less than 0.1% by weight, it is difficult to exhibit a sufficient function as a scrub agent, and if it exceeds 5.0% by weight, the function as a scrub agent corresponding to the compounding amount is difficult to be exhibited.

Examples of the anionic surfactant having an alkanolamine as a counter ion used in the present invention include higher alkyl sulfuric acid, ethylene oxide-added higher alkyl phosphoric acid, ethylene oxide-added higher alkyl phosphoric acid, N-
Acyl glutamic acid, alkanolamine of N-acyl aspartic acid (for example, monoethanolamine, diethanolamine, triethanolamine, monoisopropanolamine, diisopropanolamine, triisopropanolamine, etc.) salts, for example, triethanolamine lauryl sulfate , Lauryl phosphate triethanolamine salt, ethylene oxide-added lauryl sulfate diethanolamine salt (2 moles of ethylene oxide added), ethylene oxide-added oleyl phosphate monoethanolamine salt (8 moles of ethylene oxide added)
Mol), N-lauroylglutamic acid triethanolamine salt, N-myristoylaspartic acid diethanolamine salt, and the like.

The amount of the specific anionic surfactant used in the present invention is 1 to 10% by weight based on the total amount of the transparent soap composition, which is particularly effective for shortening the drying period and preventing devitrification due to aging. Is preferable.

The transparent soap composition of the present invention must contain a clarifying agent in order to obtain excellent transparency. As the clarifying agent, sugar, sorbitol, malbit, polysaccharides such as glucose, glycerin, polyols such as propylene glycol, or alcohols and the like are known. May be used. The addition amount of these is preferably 3 to 15% by weight.

The transparent soap composition of the present invention may contain other components as long as the object of the present invention is achieved. That is, higher alcohols, lanolin derivatives, protein derivatives, oily components such as fatty acid esters of polyethylene glycol, fatty acid alkanolamides, nonionic surfactants such as polyoxyethylene alkyl ethers and alkylamine oxides, alkylamide propyl betaine and the like Amphoteric surfactants, water-soluble polymers such as hydroxypropylmethylcellulose and hydroxyethylcellulose,
Cationic polymer [Polymer JR (manufactured by Union Carbide Corporation), Polycoat NH (manufactured by Henkel), Mercoat 550 (Merck), Guffcut 755
N (manufactured by GAF), bactericides such as triclosan, trichlorocarban, and hinokitiol; anti-inflammatory agents such as allantoin and dipotassium glycyrrhizinate; antioxidants; ultraviolet absorbers; pH adjusters such as citric acid; Dyes, fragrances and the like can be included.

The method for producing the soap composition of the present invention includes:
Enzyme-encapsulated gelatin capsules and optionally the above-mentioned optional components are mixed while heating with a transparent soap composition obtained by neutralizing the vegetable-derived fatty acid of the present invention with an alkali metal hydroxide, and Pouring, cooling and solidifying, cutting, drying,
An ordinary frame kneading manufacturing method for molding may be used.

[0033]

Next, the present invention will be described in more detail by way of examples. The effect was measured according to the following evaluation method.

(Transparency Evaluation Test) The transparent soap composition was cut into a 2 cm-thick sample piece, the surface was polished smoothly, and then a color difference meter (manufactured by Nippon Denshoku Industries Co., Ltd., colorimetric color difference meter ND-).
1001DP type), the visible light transmittance (%) of the sample piece
Was determined, and this value was regarded as transparency.

(Storage stability test) The package was left unpackaged in a thermostatic chamber at a temperature of 45 ° C., and the state of devitrification (the number of days until white turbidity occurred in the transparent soap) was observed (determined visually). ).

(Soap-based odor evaluation test method) The soap-based odor was functionally evaluated by 20 panelists and judged as follows. Evaluation code Evaluation criteria ◎ 18 or more people answered that there was no soap-based odor ○ 14 to 17 people answered that there was no soap-based odor △ They answered that there was no soap-based odor 8 to 13 people × 7 or less people answered that there was no soap-based odor

(Sensory Evaluation) A practical test was carried out by 20 panelists, and the following judgment was made. Evaluation symbol Evaluation criteria ◎ 18 or more people answered that “cleaning effect” and “scrub effect” were high ○ 14 to 17 people answered that “cleaning effect” and “scrub effect” were high △ “ When 8 to 13 people answered that the cleaning effect and scrub effect were high × When 7 or less people answered that the cleaning effect and scrub effect were high

Production Example 1 (enzyme-encapsulated gelatin capsule) A protease-encapsulated gelatin capsule used in the present invention was prepared according to the composition shown in Table 1. In addition, the compounding amount is weight%.

[0039]

[Table 1]

(Manufacturing method) A protease is added to the cyclic dimethylpolysiloxane, and the mixture is uniformly mixed to obtain an internal solution. Five times the amount of water is added to gelatin, and the mixture is heated and dissolved to form a capsule base. The capsule is prepared by dropping the internal solution and the capsule base into tri (caprylic / capric acid) glycerin using a soft capsule manufacturing apparatus. The capsules obtained by centrifuging the capsules are left at room temperature in an air stream for 24 hours and dried. Next, an acetaldehyde / ethanol solution is added, and the mixture is left in a sealed container for 3 days. After adding a 20-fold amount of warm water thereto and washing for 3 hours, it is dried at room temperature for 24 hours to obtain a gelatin capsule encapsulating the enzyme.

Production Example 2 (Immobilized Enzyme-Encapsulated Gelatin Capsule) According to the composition shown in Table 2, a silk fibroin-immobilized lipase-encapsulated gelatin capsule used in the present invention was prepared.

[0042]

[Table 2]

(Production method) Silk fibroin-immobilized lipase is added to liquid paraffin and cyclic dimethylpolysiloxane, and the mixture is uniformly mixed to obtain an internal solution. 5 for gelatin
Double the volume of water, heat and dissolve to obtain a capsule base. The internal solution and the capsule base are dropped into tri (caprylic / capric acid) glycerin using a soft capsule manufacturing apparatus,
Adjust capsule. The capsule obtained by centrifugation is dried at room temperature in an air stream for 24 hours.
Next, an acetaldehyde / ethanol solution is added, and the mixture is left in a sealed container for 3 days. A 20-fold amount of warm water is added thereto, washed for 3 hours, and dried at room temperature for 24 hours to obtain an enzyme-encapsulated gelatin capsule.

Examples 1 to 5 and Comparative Examples 1 to 8 The transparent soap compositions of Examples and Comparative Examples were neutralized with sodium hydroxide using a mixed fatty acid having the properties shown in Table 3. After completion of the neutralization, 11% by weight of sugar and 3% by weight of glycerin were added as a clarifying agent while keeping the temperature at about 70 ° C, and then cooled to about 60 ° C, and the enzyme-encapsulated gelatin capsule of Production Example 1 was added. After uniform mixing and dispersion, transparent soap glue was poured into the frame to obtain a transparent soap composition (frame kneading method). As the mixed fatty acid, a mixed fatty acid derived from palm oil, palm kernel oil, rapeseed oil, and soybean oil was used. These transparent soap compositions were evaluated as samples using the above-described evaluation test method. Table 3 shows the results.

[0045]

[Table 3]

As shown in Table 3, the transparent soap compositions of the present invention of Examples 1 to 5 all exhibited excellent performance. on the other hand,
Comparative Examples 1 to 8 using mixed fatty acids outside the scope of the present invention
Did not achieve sufficient effects, and could not achieve the object of the present invention.

Examples 6 to 10 and Comparative Examples 9 to 12 The soap compositions of Examples 6 to 10 were neutralized with sodium hydroxide using a mixed fatty acid having the properties shown in Table 4. After completion of the neutralization, 10% by weight of sorbitol and 5% by weight of propylene glycol were added as clarifying agents while keeping the temperature at about 70 ° C., then cooled to about 60 ° C., and the gelatin capsule containing the immobilized enzyme of Production Example 2 was added. Was. After uniform mixing and dispersion, transparent soap glue was poured into the frame to obtain a transparent soap composition (frame kneading method). The C12 saturated fatty acid used was derived from coconut oil, and the C18 unsaturated fatty acid used was rapeseed oil or soybean oil. These transparent soap compositions were evaluated as samples using the above-described evaluation test method.
Table 4 shows the results.

[0048]

[Table 4]

As shown in Table 4, the transparent soap compositions of Examples 6 to 10 all exhibited excellent performance. On the other hand, the transparent soap compositions of Comparative Examples 9 to 12 using mixed fatty acids out of the range of the present invention could not obtain sufficient effects, and could not achieve the object of the present invention.

The transparent soap compositions of the respective examples had sufficient transparency on the 50th day, while those of the comparative examples had insufficient transparency on the 50th day. . Further, the production period of the transparent soap compositions of the respective examples was shorter than that of the comparative example. Furthermore, the transparent soap composition of this example was excellent in storage stability, and was also excellent in terms of the "cleaning effect" and the "scrub effect" in the sensory evaluation. On the other hand, all of the transparent soap compositions of Comparative Examples containing the conventional scrubbing agent were insufficient in terms of "cleaning effect" and "scrubbing effect".

Example 11 A mixed fatty acid having a melting point of 39 ° C., a neutralization value of 225 and an iodine value of 33 (derived from coconut oil and rapeseed oil) was neutralized with sodium hydroxide. After completion of the neutralization, 10% by weight of sugar was added while keeping the temperature around 70 ° C, and 5% by weight of glycerin was further added and mixed and dissolved to obtain a transparent soap glue. This transparent soap glue 96.7
5% by weight and coconut fatty acid triethanolamine salt 3.0
%, Cooled to about 60 ° C., added and uniformly mixed and dispersed with 0.25% by weight of the enzyme-encapsulated gelatin capsule of Production Example 1, poured into a frame, cooled and solidified, cut, dried, and dried. The transparent soap composition of the present invention was obtained by molding (by a usual frame kneading method).

Example 12 A mixed fatty acid containing 23% by weight of a saturated fatty acid having 12 carbon atoms (derived from palm kernel oil) and 30% by weight of an unsaturated fatty acid having 18 carbon atoms (derived from olive oil) in the total fatty acid composition was treated with sodium hydroxide. And neutralized. After completion of the neutralization, 9% by weight of marbit and 3% by weight of 1,3-butylene glycol were added and mixed and dissolved while keeping the temperature at about 70 ° C. to obtain transparent soap glue. 96.75% by weight of this transparent soap glue and 3.0% by weight of N-mixed fatty acid-L-glutamic acid triethanolamine salt were mixed and cooled to about 60 ° C., and the immobilized enzyme-encapsulated gelatin capsule of Production Example 2 was added. After adding 25% by weight and mixing and dispersing uniformly, the mixture was poured into a frame, cooled and solidified, cut, dried, and then molded (by a normal frame kneading method) to obtain a transparent soap composition of the present invention.

Comparative Example 13 A mixed fatty acid containing 23% by weight of a saturated fatty acid having 12 carbon atoms (derived from palm kernel oil) and 30% by weight of an unsaturated fatty acid having 18 carbon atoms (derived from olive oil) in the total fatty acid composition was treated with sodium hydroxide. And neutralized. After completion of the neutralization, 9% by weight of marbit and 3% by weight of 1,3-butylene glycol were added and mixed and dissolved while keeping the temperature at about 70 ° C. to obtain a transparent soap glue. N-
The transparent soap glue 99.7 thus obtained without using the mixed fatty acid-L-glutamic acid triethanolamine salt was used.
A transparent soap composition was obtained in the same manner as in Example 12, except that 5% by weight was used and the same amount of the same raw material was used.

The transparent soap compositions of Examples 11 to 12 show the same data as those of the other examples of the present invention, have high transparency, are quick to be transparent (shortening of the production period), and lose over time. There was little transparency, and it was excellent in "cleaning effect" and "scrub effect". Comparative Example 13 containing no N-mixed fatty acid-L-glutamic acid triethanolamine salt
The transparent soap composition of the above was insufficient in shortening the drying period and preventing devitrification due to the passage of time.

[0055]

As described above, the transparent soap composition of the present invention quickly becomes transparent (shortening of the production period), and has high transparency, slow devitrification, "cleaning effect" and "scrub effect". It is clear that the present invention also provides an excellent transparent soap composition.

Claims (3)

(57) [Claims] 1. A melting point of 36 ° C. to 44 ° C. and a neutralization number of 215
A transparent soap composition comprising: a fatty acid salt obtained by neutralizing a vegetable-derived mixed fatty acid having an iodine value of 31 to 45 with an alkali metal hydroxide; and an enzyme-encapsulated gelatin capsule. 2. A fatty acid salt obtained by neutralizing a mixed fatty acid having 15 to 25% by weight of a saturated fatty acid having 12 carbon atoms and 25 to 45% by weight of an unsaturated fatty acid having 18 carbon atoms with an alkali metal hydroxide. The transparent soap composition according to claim 1, further comprising: a gelatin capsule containing an enzyme. 3. The transparent soap composition according to claim 1, further comprising an anionic surfactant having an alkanolamine as a counter ion.