JP2003301200A - Composition for soap bubble - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To obtain a composition for soap bubbles which do not break when touched. <P>SOLUTION: The composition for soap bubbles contains a water-soluble cellulose ether and a surfactant. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a soap bubble composition for producing a soap bubble used as an attraction for toys, plays, etc., and in particular, a soap bubble composition that does not break even when touching a prepared soap bubble. Regarding things.

[0002]

2. Description of the Related Art Soap bubbles used as an attraction for children's play tools or theater stages are made of surfactants. A conventional soap bubble is made by immersing a ring such as a straw or wire in an aqueous solution in which a surfactant is dissolved, taking it out, and then using a breath to blow off the aqueous solution film stretched over the straw or wire. It is formed and floated in the air to enjoy. However, when I tried to touch the soap bubble with my hand, the film formed by the balance between the surface tension and the internal pressure of the soap bubble was quickly destroyed, so I could not touch the soap bubble. . If this soap bubble is not destroyed even if you touch it with your hands, and if the soap bubble state can be maintained and exist until the end of the stage such as a play, it will not only be possible to have a more attractive stage production effect, but also a toy. Therefore, the preparation of an aqueous solution capable of producing a soap bubble that does not break has been earnestly desired.

As a means for solving these problems, a water-soluble polymer substance capable of forming a film is added to a surfactant to form a soap bubble, and while the soap bubble is suspended in the air, the soap bubble surface is removed. If the water evaporates and a film of the added water-soluble polymer is formed, the shape of the soap bubble can be maintained as it is. At this point, make a soap bubble that does not break even if you touch it with your hands. Was thought to be possible.

However, in general, the interfacial tension of a water-soluble polymer aqueous solution is higher than that of a surfactant aqueous solution,
When water-soluble polymer is added to the surfactant, soap bubbles cannot be formed, or a concentrated water-soluble polymer solution is prepared so that the film can be formed quickly and added to the surfactant solution to form soap bubbles. Then, the soap bubble coating becomes thicker due to the viscosity of the water-soluble polymer, and the weight of the soap bubble becomes heavier and drops faster in the air, and a dry film with sufficient strength is not formed until it falls. Not only did the film crack, but there was the problem that it did not become a soap bubble with a film that could be touched while floating. In particular, addition of partially saponified or fully saponified polyvinyl alcohol to the surfactant as such a water-soluble polymer was examined,
There have been situations where it was not possible to prepare a satisfactory, unbreakable soap bubble composition.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a soap bubble composition capable of forming a soap bubble which is not broken even if it is touched by hand.

[0006]

Means for Solving the Problems and Modes for Carrying Out the Invention As a result of intensive studies for solving the above-mentioned problems of the prior art, the present inventors have found that the soap bubbles containing a water-soluble cellulose ether and a surfactant. The present inventors have completed the present invention by finding that a soap bubble that does not break even if touched by the hand can be obtained by the composition.

Therefore, the present invention provides (1) a soap bubble composition characterized by containing a water-soluble cellulose ether and a surfactant, and (2) a water-soluble cellulose ether,
Soap bubble composition according to (1), wherein the composition is one or more selected from water-soluble alkyl cellulose, water-soluble hydroxyalkyl cellulose and water-soluble hydroxyalkyl alkyl cellulose, and (3) a surfactant. Is one or more selected from nonionic surfactants, anionic surfactants, cationic surfactants and amphoteric surfactants, and the composition for soap bubbles according to (1) or (2) is characterized in that And (4) the surfactant is a perfluorooctanesulfonic acid-based surfactant and an alkylsulfonic acid-based surfactant, the composition for soap bubbles according to (1) or (2) is provided. To do.

The present invention will be described in more detail below. The water-soluble cellulose ether used in the present invention is
With respect to water-insoluble cellulose, if a methoxyl group, a hydroxypropyl group, a hydroxyethyl group, etc. are water-soluble by ether substitution to the extent that they become water-soluble,
Either one can be used. Examples of the water-soluble cellulose ether include water-soluble alkyl cellulose, water-soluble hydroxyalkyl cellulose and water-soluble hydroxyalkyl alkyl cellulose. Specifically, the water-soluble alkyl cellulose is methyl cellulose having a methoxyl group of 14 to 32% by weight, and the hydroxyalkyl cellulose is a hydroxypropoxyl group of 50 to 70%.
Hydroxypropyl cellulose having a weight percentage of 30% to 70% by weight and hydroxyethyl cellulose having a hydroxyethoxyl group of 30% to 70% are hydroxypropylalkylcellulose having a hydroxypropyl group having a methoxyl group of 19% to 31% and a hydroxypropoxyl group of 4% to 20%. Methyl cellulose, 19 to 31% by weight of methoxyl group, and 9 to 20% by weight of hydroxyethoxyl group, hydroxyethylmethylcellulose and 11 ethoxyl group.
-21% by weight and hydroxyethylethylcellulose having 40-57% by weight of hydroxyethoxyl groups. The degree of substitution of these cellulose ethers is described in J.
G. Gobler, E .; P. Samscl, and
G. H. Beaber, Talanta, 9, 474
It can be measured according to the method by Zeisel-GC described in (1962) or the method of the substitution degree measuring method described in the 14th revised Japanese Pharmacopoeia D945-D966.

These cellulose ethers have a hydroxyl group and a hydrophobic group in the molecule and exhibit surface activity, so that they are excellent in protective colloid properties such as oil. Hayak
awa, M .; Kawaguchi and T.M. Kat
o ,: Langmuir, 13, No. 23,6069
-6073 (1997), but there is no description that it can be used for soap bubbles. The surface tension of these aqueous solutions is lower than that of water, and it is considered that these cellulose ethers also exhibit excellent functions as protective colloid agents for soap bubbles, which is convenient for the formation of soap bubbles. Particularly, hydroxypropylmethylcellulose having a methoxyl group of 28 to 30% by weight and a hydroxypropoxyl group of 7 to 12% by weight is suitable because it has a low surface tension when made into an aqueous solution.

As for the molecular weight of the water-soluble cellulose ether, in a range where a concentrated aqueous solution does not exhibit high viscosity,
Moreover, the molecular weight range necessary for the aqueous solution to be dried to form a film is good, and the weight average molecular weight is 10,000 to 100,000, particularly 1.5.
10,000 to 40,000 is preferable. These weight average molecular weights can be found in the Polymer Papers vol. 39, no. 4, PP293-29
8 (1982).

Further, the viscosity of 2% by weight of the water-soluble cellulose ether at 20 ° C. is preferably 3 to 8 mPa · s, and the viscosity is measured in accordance with the 14th revised Japanese Pharmacopoeia D945 to D966. It can be measured by a viscosity measuring method.

[0012] The concentration of these water-soluble cellulose ethers in the soap bubble composition must be an appropriate concentration for drying the soap bubbles after they are formed, and it is too thick to increase the viscosity. As long as it does not interfere with the formation of soap bubbles. Such a concentration range varies depending on the molecular weight of the selected water-soluble cellulose ether and is difficult to determine uniquely, but 10 to 30% by weight,
Particularly, 15 to 25% by weight is preferable.

The surfactant used in the present invention includes:
Any one can be used as long as it has a surface tension lower than that of water when dissolved or dispersed in water. Anionic surfactant, nonionic surfactant, cationic surfactant, amphoteric surfactant are used. it can.

Specifically, metal salts of carboxylic acids such as dodecylbenzene sulfonic acid, alkyl ether sulfonic acid, (meth) acrylic acid derivatives, anionic surfactants such as ammonium salts, polyalkylene glycol derivatives, sorbitan derivatives. , Fluorine group-containing surfactant,
Examples include nonionic surfactants such as silicone-based surfactants, cationic surfactants such as dodecyltrimethylammonium chloride, and betaine-based amphoteric surfactants.
Any of the surfactants described in "1985, Engineering Book, New Edition, Surfactant Handbook", which has a surface tension lower than that of water dissolved or dispersed in water can be used.

In using these surfactants, it is desirable that the solution prepared in combination with the above-mentioned water-soluble cellulose ether easily forms soap bubbles. As an example of these combinations, one particularly preferable combination is a water-soluble cellulose ether and a perfluorooctanesulfonic acid-based surfactant (perfluorooctanesulfonic acid, a metal salt of perfluorooctanesulfonic acid, perfluorooctanesulfonic acid). One or more selected from ammonium salts), and alkyl sulfonic acid type surfactants (alkyl sulfonic acid metal salt, alkyl sulfonic acid ammonium salt, alkyl sulfonic acid triethanolamine salt, etc.), polyoxyethylene alkyl ether sulfone Acid metal salt, alkyl ether sulfonic acid ammonium salt,
One or more selected from polyoxyethylene alkyl ether sulfonic acid triethanolamine salts may be mentioned.

The perfluorooctane sulfonic acid, the metal salt and the ammonium salt of perfluorooctane sulfonic acid are commercially available from Tochem Products Co., Ltd. as perfluorooctane sulfonic acid (EF-1).
In addition to 01), its sodium salt, potassium salt, and ammonium salt can be used. Also, alkyl sulfonic acid metal salts, alkyl sulfonic acid ammonium salts, alkyl sulfonic acid triethanolamine salts and other alkyl sulfonic acid surfactants, alkyl ether sulfonic acid metal salts,
As the alkyl ether sulfonic acid ammonium salt and the alkyl ether sulfonic acid triethanolamine salt,
Although not particularly limited, those having an alkyl group having about 8 to 18 carbon atoms have suitable surface activity for forming a soap bubble shape. Specifically, it is a series product called Parsoft sold by NOF CORPORATION, which includes sodium lauryl sulfonate, sodium polyoxyethylene lauryl ether sulfonate, triethanolamine lauryl sulfonate, and polyoxyethylene. Examples thereof include a surfactant containing triethanolamine of lauryl ether sulfonic acid.

The concentration of these surfactants used is as follows.
It is not particularly limited as long as soap bubbles can be formed,
Usually 0.5 to 10% by weight, preferably 0.5 to 3% by weight
The range is from 0.6 to 2.5% by weight, and particularly 0.1 to 2.5% by weight for the perfluorooctanesulfonic acid type surfactant.
8 to 2.0% by weight, and regarding the alkyl sulfonic acid type surface activity, 2 to 8% by weight, particularly 2 to 5% by weight are preferable.
Further, it is particularly preferable to use a combination of a perfluorooctane sulfonic acid type surfactant and an alkyl sulfonic acid type surfactant.

[0018]

EXAMPLES The present invention will be specifically described below by showing Examples and Comparative Examples, but the present invention is not limited to the following Examples.

[Example] 29% by weight of methoxyl group, 9% by weight of hydroxypropoxyl group, 20% of 2% by weight aqueous solution
Viscosity at 5 ° C is 5 mPa · s, and the collection of polymer papers vol. Three
9, No. 4, PP293-298 (1982), a 20% by weight aqueous solution of hydroxypropylmethylcellulose (product name 60SH-5) manufactured by Shin-Etsu Chemical Co., Ltd. having a weight average molecular weight of 22,000 was prepared. To 100 g of the aqueous solution, 1.6 g of perfluorooctane sulfonic acid (trade name EF-101) commercially available from Tochem Products Co., Ltd. was added, and after stirring and dissolving, alkyl sulfone manufactured by NOF CORPORATION Acid triethanolamine (Brand name Persoft SFT) 40
10 g of a weight% aqueous solution was added and mixed, and then a soap bubble preparation solution was prepared.

Using a metal clip having a wire diameter of about 1 mm, a craft for preparing soap bubbles having a ring-shaped portion with a diameter of 5 mm at the tip was made, and the ring-shaped portion of this craft was immersed in a soap bubble aqueous solution. After that, it was taken out of the solution, and the solution film attached to the ring of the wire was blown off with a breath from the mouth to form a soap bubble, and when the appearance of the soap bubble dropped from a height of 1.5 m was observed, it was more than 24 hours. Soap bubbles did not break even after a while.

[Comparative Example 1] In Example 1, a 20% by weight aqueous solution of hydroxypropylmethylcellulose (product name 60SH-5) was replaced with a 20% by weight aqueous solution of polyvinyl alcohol (product name PA-05) manufactured by Shin-Etsu Chemical Co., Ltd. A soap bubble was tried to be prepared in the same manner as in Example 1 except that the soap bubble was changed. However, the soap bubble was difficult to form, and the formed soap bubble was also not cracked until it fell and was not touchable. The situation was observed.

[Examples 2 to 8] Table 1 shows blending examples of soap bubble compositions using various cellulose ethers and surfactants, which were produced in the same manner as in Example 1 to produce soap bubbles that did not crack. Table 1 also shows the composition of Example 1. Moreover, in Table 1, each composition was mixed as an aqueous solution. Table 1 shows the pure concentration (% by weight) of each composition in the aqueous solution.

[0023]

[Table 1]

Hydroxypropylmethylcellulose <manufactured by Shin-Etsu Chemical Co., Ltd. 60SH-5, molecular weight 22,000, methoxyl group 29% by weight, hydroxypropoxyl group 9.
0% by weight> hydroxypropylmethylcellulose <Shin-Etsu Chemical Co., Ltd. SB-4, molecular weight 18,000, methoxyl group 2
4.1% by weight Hydroxypropoxyl group 6.5% by weight
> Methylcellulose <Shin-Etsu Chemical Co., Ltd. SM-4
Molecular weight 21,000 Methoxyl group 30.1% by weight> Hydroxypropyl cellulose <Nippon Soda Co., Ltd. H
PC-L Molecular weight 23,000 65% by weight of hydroxypropoxyl group> Hydroxyethyl cellulose (Natrosol 250L-
R) <52% by weight of hydroxyethyl group manufactured by Aqualon> Perfluorooctanesulfonic acid <EF-101 manufactured by Tochem Products> CAS No. 1763-23-1 Perfluorooctane sulfonic acid sodium salt <Tochem Products EF-103> Perfluorooctane sulfonic acid ammonium salt <Tochem Products EF-104> Alkylsulfate triethanolamine salt <NOF Corporation ) Manufactured by Persoft SFT: Alkyl C _n H _{2n + 1}
Distribution n = 12, 14> lauryl sulfate sodium salt <NOF Corp. PERSOFT SP> polyoxyethylene alkyl ethers, sodium salt <NOF Corp. PERSOFT EF: alkyl C _n H _{2n + 1}
Distribution n = 12, 14> Polyoxyethylene alkyl ether sulfonic acid triethanolamine salt <Nippon Oil & Fat Co., Ltd. Persoft E
FT: Alkyl C _n H _{2n + 1} distribution n = 12, 14> Polyoxyethylene stearate <made by NOF Corporation> Dodecyltrimethylammonium chloride <NOF Corporation>
Nissan Cation BB> Dimethylalkyllauryl betaine <ANON BL manufactured by NOF CORPORATION>

[0025]

According to the present invention, it is possible to form a soap bubble that does not break even if it is touched by hand.

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Claims (4)

[Claims] 1. A soap bubble composition comprising a water-soluble cellulose ether and a surfactant. 2. The soap according to claim 1, wherein the water-soluble cellulose ether is one kind or two or more kinds selected from water-soluble alkyl cellulose, water-soluble hydroxyalkyl cellulose and water-soluble hydroxyalkylalkyl cellulose. A composition for balls. 3. The surfactant is one or more selected from nonionic surfactants, anionic surfactants, cationic surfactants and amphoteric surfactants. The composition for a soap bubble described. 4. The soap bubble composition according to claim 1, wherein the surfactant is a perfluorooctanesulfonic acid-based surfactant and an alkylsulfonic acid-based surfactant.