JP6393511B2 - Transparent solid soap and method for producing the same - Google Patents

Description

  The present invention relates to a transparent solid soap and a method for producing the same, and more particularly, to a technique related to a transparent solid soap with less irritation that can be foamed with micro foam particles.

  Solid soap can be roughly divided into amino acid soaps, fatty acid soaps and other soaps. Moreover, the category of solid soap includes transparent solid soap mainly used for face washing, and the frame kneading method and the mechanical kneading method are known as its production method. The object of the present invention is a transparent solid soap suitable for whole body including face washing belonging to the category of fatty acid soap by a frame kneading method.

  Here, if the manufacturing method of the transparent solid soap which belongs to the category of fatty acid soap is demonstrated by the frame kneading method, the conventional method including the disclosed technique of Patent Document 1, that is, a lower alcohol and water are mixed with a fatty acid. After adding a clearing agent to fatty acid soap obtained by saponifying fats and oils by adding alkaline aqueous solution to the resulting mixture, stirring and heating to obtain a transparent soap base, pouring it into a mold, at least cooling solidification, die cutting and cutting It is done by doing.

  Among these, the disclosed technique of Patent Document 1 proposes a transparent solid soap having excellent moisturizing effect, skin-beautifying effect, transparency and foaming property and a method for producing the same by further adding honey while using the conventional method. To do.

JP 2011-57765 A

  However, in the case of the transparent solid soap belonging to the category of fatty acid soap produced by the conventional kneading method including Patent Document 1, the stain can be removed by washing the skin while foaming, It was difficult to sufficiently remove the dirt adhering to the pores.

  That is, for example, the inner diameter of skin pores is 10 to 200 μm on average, and the diameter of hair growing from the pores is 80 μm or less on average, whereas conventional transparent solid soap is bubbled The average size of the individual foam particles at the time is larger than the size of the gap between the pores and the hairs growing from the pores, making it difficult for the foam particles to enter the pores. There is a disadvantage that it is impossible to effectively remove the dirt adhering to the surface.

  In view of the above-mentioned problems found in conventional fatty acid-type transparent solid soap, the present invention makes sure that the individual foam particles when foamed are allowed to enter the pores of the skin, thereby adhering to the pores. It is an object of the present invention to provide a transparent solid soap with less irritation that can effectively remove scum and a method for producing the same.

The present invention has been made to achieve the above object, and the first invention (a method for producing a transparent solid soap) includes adding an alkaline aqueous solution to a mixture obtained by mixing a fatty acid with a lower alcohol and water. A transparent soap that is obtained by adding a clearing agent to a fatty acid soap obtained by saponifying fats and oils, stirring and heating to obtain a transparent soap base, then pouring it into a mold and at least cooling, solidifying, demolding and cutting. In the production method, the temperature immediately after heating the transparent soap base is 85 ° C. to the temperature immediately before boiling, and the liquid temperature is 65 to 75 ° C. after the transparent soap base is cooled to 65 to 75 ° C. after stirring engaged distribution in the amount of 10.0 to 20.0% by weight of cream emulsion oil-in-water to a higher fatty acid ester nonionic surfactant emulsifying and dispersing agent, poured into the mold And in, to freely enter into the gap between the hair has grown to the size of the bubble particles generated its use during a small average 30μm and made with pores and said capillary holes in the skin than the size of the conventional foam particles The most important feature is to enable piston cleaning of dirt adhering to the pores and increase of cleaning power by increasing the contact area of the foam particles to the skin.

On the other hand, the second invention (transparent bar soap) is the most important feature that has been formed by the method according to claim 1.

ADVANTAGE OF THE INVENTION According to this invention, the transparent solid soap with little irritation which can remove effectively the dirt adhering to the pore of skin can be provided. Moreover, when washing the body, it is possible to expand the contact area of the foam particles to the skin by foaming tough foam particles with a micro size smaller than the size of the conventional foam particles. The detergency can be increased. Further, since the oil-in-water cream emulsion is blended, it is possible to eliminate discomfort during face wash as possible to try to eyes.

The graph which shows the relationship between the compounding quantity of the cream emulsion in Table 1, and the density of foam particle. The reference figure drawn and raised based on the microscope picture of this invention application product a in Table 1. FIG. The reference figure drawn and raised based on the microscope picture of this invention application product d in Table 1. FIG. The reference figure drawn and raised based on the microscope picture of a comparative example (A company). The reference figure drawn and raised based on the microscope picture of a comparative example (Company B). The reference figure drawn and raised based on the microscope picture of a comparative example (C company). The reference figure drawn and raised based on the microscope picture of a comparative example (Company D).

  Hereinafter, the present invention will be described in detail. The manufacturing method of the transparent solid soap which is 1st invention among this invention is performed by passing through the following processes.

That is, according to the first invention, a fatty acid soap obtained by saponifying fats and oils by adding an alkaline aqueous solution to a mixture obtained by mixing a lower alcohol and water with a fatty acid is added with a clarifying agent, stirred and heated to be transparent. In the method for producing a transparent solid soap obtained by obtaining a soap base and then pouring into a mold and at least cooling, solidifying, die cutting and cutting, the temperature immediately after heating the transparent soap base is a temperature immediately before boiling to 85 ° C. , translucent after cooled to Akashi Prefecture green body 65 to 75 ° C., the liquid temperature is cream Emar sucrose oil-in-water to emulsification and dispersant higher fatty acid ester-based nonionic surfactant is 65 to 75 ° C. after stirring by blending down, it is carried out by pouring the mold.

  In this case, the reason for setting the temperature immediately after heating the transparent soap base to 85 ° C. to the temperature immediately before boiling is that if the temperature is less than 85 ° C., the dissolution of the soap base components becomes insufficient. This is because the moisture contained therein evaporates when the temperature is exceeded.

  The reason why the transparent soap base is lowered to 65 to 75 ° C. is that the soap base starts to harden when the temperature is lower than 65 ° C., and when the temperature exceeds 75 ° C., the stabilization of the cream emulsion is inhibited. .

Furthermore, the liquid temperature in formulating oil-in-water cream Emar sucrose down to emulsification and dispersant higher fatty acid ester-based nonionic surfactant in the transparent soap base of 65 to 75 ° C. is at 65 to 75 ° C. This is because if the temperature is less than 65 ° C., the soap base starts to harden similarly, and if it exceeds 75 ° C., the stabilization of the cream emulsion is similarly inhibited.

  As the fatty acid constituting the fatty acid soap, in general, lauric acid, myristic acid, stearic acid, oleic acid, etc. can be used alone or a mixture of these as appropriate, and oils containing fatty acids such as, for example, Horse oil, cow oil, olive oil or the like can also be used.

  As the lower alcohol, ethanol, dipropylene glycol, or the like can be used.

  As water, in addition to purified water, general water including tap water and natural water can also be used.

  As the alkaline aqueous solution, a sodium aqueous solution, a potassium aqueous solution, or the like can be used.

  Moreover, as a clarifying agent which comprises a transparent soap base, the mixture of saccharides containing sucrose, sorbitol, trehalose, etc., and glycerin can be used.

In the first invention, the oil- in- water cream emulsion using the higher fatty acid ester nonionic surfactant as an emulsifying / dispersing agent preferably has a blending amount of 10.0 to 25.0% by weight. The reason is that when the amount is less than 10% by weight, the foam particles are not reduced. When the amount exceeds 25.0% by weight, not only the size of the foam particles is not reduced, but also the transparency is lost. This is because it becomes difficult to solidify the soap later.

  An example of blending components of an oil-in-water cream emulsion obtained by blending water and oil with an emulsifier (surfactant) and suspending it is shown below.

Blending component example 1 blending amount (% by weight)
Surfactant 5.0
Tri (caprylic / capric) glyceryl 10.0
Olive Squalane 5.0
Cetearyl alcohol 3.0
Carbomer 0.2
Arginine 0.2
Water 76.6
Preservative appropriate amount The breakdown of surfactant 5.0% by weight is cetanol 0.39% by weight, stearyl alcohol 1.40% by weight, behenyl alcohol 1.45% by weight, phytosterols 0.36% by weight, glyceryl stearate 0.20% by weight, PEG-20 phytosterol 0.80% by weight, hydrogenated lecithin 0.20% by weight, and tri (caprylic / capric) glyceryl 0.20% by weight.

Blending component example 2 blending amount (% by weight)
Deca (behenic acid / capric acid) polyglyceryl-8 2.00
Polyglyceryl-2 isostearate 1.20
Polyglyceryl-6 polyricinoleate-6 0.20
Polyglyceryl laurate-10 0.15
Academia nut oil polyglyceryl-6esters behenate 1.00
Cetyl ethylhexanoate 15.00
Disteadimonium hectorite 1.00
Diglycerin 3.00
BG 10.00
Aspartic acid 0.20
Water 66.25
Preservative appropriate amount

Blending component example 3 blending amount (% by weight)
Mineral oil 8.00
Myristoylmethylaminopropionate hexyldecyl 4.00
Dimethinine 4.00
Behenyl alcohol 2.00
Cetaaryl alcohol 4.00
Stellate PG 1.00
Glyceryl stearate 3.20
Stearic acid PEG-201 0.80
Stearoyl glutamate Na 0.30
Sorbitol aqueous solution (70% sol) 5.00
Glycerin 4.00
Xanthan gum aqueous solution (1% sol) 10.00
Water 53.70
Preservative appropriate amount

Blending component example 4 blending amount (% by weight)
Squalane 1.00
Vaseline 2.00
Microcrystalline wax 0.50
Behenyl alcohol 2.50
Tocophenol acetate 0.10
Stearyl alcohol 3.00
Dimethinine 2.00
Stearic acid 0.20
EMALEX-10 10.00
PEG-20 4.00
Stearoyl glutamate Na 0.10
BG 5.00
Arginine 0.05
Xanthan gum 0.10
Glycerin 8.00
Maltitol 2.00
Water 59.45
Preservative appropriate amount

Blending component example 5 blending amount (% by weight)
Squalane 11.50
Lauronyl glutamate di (octyldodecyl / phytostearyl / behenyl) 1.00
Behenyl alcohol 1.00
Cetyl ethylhexanoate 2.00
Dimethinine 3.00
Cetearyl alcohol 2.00
Glyceryl stearate 3.00
PEG-20 stearate 0.40
Stearoyl glutamate Na 0.20
Glycerin 7.00
Xanthan gum aqueous solution (1% sol) 20.00
Water 48.90
Preservative appropriate amount

Blending component example 6 blending amount (% by weight)
Squalane 5.00
Cetyl ethylhexanoate 10.00
Lauroylglutamate dihexyldecyl 2.00
Dimethinine 5.00
Behenyl alcohol 1.00
Stearyl alcohol 2.00
Sorbitan stearate 0.90
Polyglyceryl-6 distearate-6.10
Iced lecithin 0.50
Tocopherol acetate 0.10
Glycyrrhizic acid 2K 0.05
Stearoyl glutamate Na 0.40
PEG-150 1.00
Trehalose 3.00
Glycerin 12.00
Xanthan gum aqueous solution (1% sol) 10.00
Water 44.95
Preservative appropriate amount

Blending component example 7 blending amount (% by weight)
Lauroylglutamate di (octyldodecyl / phytostearyl / behenyl) 2.00
Mineral oil 6.50
Stearyl stearate 4.00
Triethylhexanoin 2.50
Dimethinine 3.00
Behenyl alcohol 3.20
Glyceryl stearate 2.00
PEG-40 stearate 1.00
Carboxymethylchitin aqueous solution (1.2% sol) 5.00
BG 5.00
Water 65.80
Preservative appropriate amount

  The transparent soap base thus obtained is produced as a transparent solid soap by pouring into a mold and at least cooling solidification, die cutting and cutting. Explaining more concretely the processing steps after pouring into the mold, the transparent soap base poured into the mold made of synthetic resin material is slowly cooled and solidified into a block shape, then taken out from the mold Then cut according to the weight of the finished product. After cutting, it is dried for about 10 days in a drying room through a chamfering operation, and a first hot water wiping operation is performed. After that, the first stamping operation is performed to easily adjust the shape, and then dried again for about 50 days. After drying, after performing the second hot water wiping work, finish stamping work is performed again, the shape is formed again, and after further finishing wiping work, it is packed and inspected and then packed Will be shipped.

  On the other hand, the transparent solid soap which is 2nd invention can be manufactured with the said manufacturing method.

  Here, if the relationship between the foam particles made of soap and the pores of the skin is described, it is necessary that the individual foam particles have a size that can enter the pores and clean the piston. That is, the inner diameter of the pores on the skin is 10 to 200 μm on average, and the diameter of the hair growing from the pores is 80 μm or less on the average, whereas individual foam particles generated from the soap enter the pores. For this purpose, it is necessary that the outer diameter of the individual foam particles generated from the soap is smaller than 70 μm which is the maximum value of the gap formed between them, for example, the average value is 30 μm.

  Also, according to the foam theory, the foam particles become smaller and increase in a certain volume, thereby increasing the surface area. That is, the smaller the foam particles, the greater the contact point with the skin. It is said that the cleaning effect is improved.

  For this reason, a confirmation test of the size of the foam particles was performed on the product to which the present invention was applied and the comparative example under the following conditions.

That is, a confirmation test was conducted under the following conditions at Cosmos Technical Center Co., Ltd. (3-24-3 Hasune, Itabashi-ku, Tokyo).
(1) How to make foam particles Soap amount 5g
45g of warm water (40 ° C)
Stirring method Using a homomixer at a rotational speed of 3000 rpm for 2 minutes. The reason for setting the rotational speed of the homomixer to 3000 rpm is that the size of the generated foam particles is higher than 3000 rpm compared to 3000 rpm. This is because it gets bigger.
(2) Measurement of density 25 cc of the produced foam particles was placed in a 50 cc beaker with a scale, and the weight was measured.

Table 1 shows the components of the soap used in the experiment divided into products related to the present invention and comparative examples that are products of other companies. According to this, the soap used as the product related to the present invention is different from the blending amount (% by weight) of the oil- in- water cream emulsion using the higher fatty acid ester nonionic surfactant as an emulsifier / dispersant. There are six types up to f. The cream emulsion used here was formed by the composition of Formulation Component Example 1 in each of the above-described formulation components. On the other hand, the soap used as a comparative example is the soap which was manufactured by 4 companies, A company, B company, C company, and D company, and the above cream emulsion is not mix | blended.

  FIG. 1 is a graph showing the relationship between the amount of cream emulsion blended in Table 1 and the density of foam particles, and is an applied product of the present invention blended with a cream emulsion performed under the above experimental conditions. The density of foam (g / cc) of soap (b to f) and the density of foam particles (g / cc) of comparative examples (Company A to Company D) which are soaps manufactured without blending a cream emulsion It is a figure which shows the relationship. In addition, a of the products to which the present invention is applied shows, for reference, the density (g / cc) of soap foam particles obtained by performing the method of the present invention without blending a cream emulsion.

According to Table 1 and Figure 1, of the present invention applied product, increases the density of Awaryushi when the amount of the cream emulsion is c-e (wt%) is 10 to 2 0%, especially cream emulsion It was confirmed that e, in which the blending amount (% by weight) is 20%, has the highest density of the foam particles, that is, the size of the foam particles is small. On the other hand, for the comparative examples (Company A) to (Company D) that are transparent solid soaps that do not contain a cream emulsion and the product a of the present invention, the density of the foam particles is low, that is, the foam particles It was confirmed that the size was large.

  Incidentally, FIG. 2 is a reference diagram drawn on the basis of a micrograph of the applied product a of the present invention in Table 1 in which no cream emulsion is blended, and FIG. 3 is a table in Table 1 blended with 20% of the cream emulsion. Reference drawings drawn and raised based on the micrographs of the invention application product e, FIGS. 4 to 7 are micrographs of comparative examples (Company A) to (Company D) in Table 1 that do not contain a cream emulsion. Each reference figure drawn and raised based on this is shown. Also from these reference diagrams, the product e of the present invention in FIG. 3 containing a cream emulsion is the product a of the present invention a in FIG. 2 that does not contain a cream emulsion and the comparative examples of FIGS. 4 to 7 (Company A). Compared with (Company D), the tendency of the average size of the foam particles to become smaller can be known.

Table 2 is a table showing the results of the closed patch test conducted at three dermatological medical institutions. Here, the transparent solid soap manufactured by mix | blending the cream emulsion shown to d of Table 1 is used as this invention goods.

  According to the results of the above closed patch test, it was found that the product of the present invention containing an oil-in-water cream emulsion is less irritating than a comparative product not containing an oil-in-water cream emulsion. To do.

  11 Foam particles

Claims (2)

After adding a clearing agent to fatty acid soap obtained by saponifying fats and oils by adding alkaline aqueous solution to a mixture of fatty acid and lower alcohol and water, a transparent soap base is obtained by stirring and heating, In the method for producing transparent solid soap poured into a frame and at least cooled, solidified, punched and cut,
The temperature immediately after the heating of the transparent soap base is 85 ° C. to the temperature immediately before boiling, and after the transparent soap base is cooled to 65 to 75 ° C., the higher fatty acid ester type whose liquid temperature is 65 to 75 ° C. after stirring engaged distribution in the amount of 10.0 to 20.0% by weight of cream emulsion oil-in-water type that the nonionic surfactant and emulsifying and dispersing agent, by pouring the mold, the By making the size of the foam particles generated at the time of use an average value 30 μm, which is finer than the size of the conventional foam particles, the pores can freely enter the gap between the pores of the skin and the hairs growing from the pores. A method for producing a transparent solid soap, which makes it possible to clean a piston of dirt adhering to the surface and increase a cleaning power by expanding a contact area of the foam particles to the skin. It only transparent solid stone, characterized in that formed by the production method according to claim 1.