JP2005319240A - Color soap bubble solution - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a color soap bubble solution that colors soap bubbles without using a water soluble food pigment or water dispersible fine particle pigment and does not stain clothing or a wall surface. <P>SOLUTION: The color soap bubble solution that does not stain clothing or a wall can be made by adjusting a composition comprising a pH indicator which is colorless at a pH of 8.8 or lower and colors at a pH of 9.8 or higher, a combination of a chlorine-resistant water soluble polymer compound and a nonionic surface active agent or a combination of a nonionic surface active agent and a negative ion surface active agent, an antiseptic, and water by an inorganic base compound at a pH of 9.8 or higher. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

The present invention relates to a composition of a color soap bubble liquid that is intended to be enjoyed by adding colorful colors to soap bubbles.

Conventional soap bubbles use water-soluble polymer compounds such as polyvinyl alcohol (PVA), and use soap, alkylbenzene sulfonic acid soda, alkyl sulfonic acid soda, nonionic surfactants, etc. as the surfactant to reflect light. Most were colored. In addition to this reflection by light, it is possible to add color by adding water-soluble food dyes or water-dispersible fine particle pigments as an attempt to color soap bubbles, but when soap bubbles break, clothes, walls, etc. Because of the color and stains, there were many problems in playing with soap bubbles.

The present inventors have studied a color soap bubble liquid that does not stain the clothes and walls without coloring the soap bubbles without using the above water-soluble food dyes or water-dispersible fine particle pigments.

In order to achieve the above-mentioned object, the present invention provides a pH indicator, a base-resistant water-soluble polymer compound, a nonionic surfactant or a non-ionic surfactant that is transparent at pH 8.8 or lower, and changes color at pH 9.8 or higher. Soap bubbles that float when a soap solution is blown by adjusting the composition of an ionic surfactant and an anionic surfactant, a preservative and water to pH 9.8 or more with an inorganic strong basic compound. The object is colored and the color naturally disappears in the air, so that the object can be achieved without soiling clothes and walls.

  The color soap bubble liquid of the present invention is colored when it is blown from the air outlet and floats, and the color disappears naturally in the air, so when the soap bubble breaks, it stains clothes and walls etc. You can enjoy colored soap bubbles without any problems.

BEST MODE FOR CARRYING OUT THE INVENTION

Hereinafter, the present invention will be described in detail. As the surfactant in the present invention, a nonionic surfactant alone or a combination of a nonionic surfactant and an anionic surfactant is used. Nonionic surfactants are those obtained by adding ethylene oxide to higher alcohols. Among them, polyoxyethylene alkyl ethers can be used to adjust the number of moles of ethylene oxide added. Are preferably 12 or more, and examples of the anionic surfactant include alkyl sulfonate Na and alkyl benzene sulfonate Na such as Na lauryl sulfate Na and dodecyl benzene sulfate Na. When used in combination, the ratio of the nonionic surfactant to the anionic surfactant is 1 to 0.01 to 1, and the total addition amount is 1 to 5% by weight.
The role of the surfactant is not only to lower the interfacial tension of water required to produce soap bubbles, but also to dissolve the amount of pH indicator necessary for the soap bubbles to become dark and highly colored in water. It has a role as a solubilizer.
Examples of pH indicators that are transparent at a pH discoloration range of pH 8.8 or less and change color at a pH of 9.8 or more include thymolphthalein (colorless from blue at pH 8.8 or less to blue at pH 10.5 or more) and Examples include O (ortho) -cresolphthalein (colorless at pH 8.2 or less to reddish purple at pH 9.8 or more), phenolphthalein (colorless at pH 8.2 or less to red at pH 9.8 or more), and the like. A pH indicator is a general term for compounds that change from colorless to colored and from colored to another colored within a certain pH range, and many are known such as those that change color only in an acidic range or only in an alkaline range.
Those that can be used in the present invention are colored when in use and change rapidly in the air to colorless, and those that change from colored to colored are not suitable.
The principle that the color attached to the soap bubbles becomes colorless in the air is that the pH indicator must be made basic to form a sodium salt in order to dissolve in water. Hydroxylation is one of the inorganic basic compounds used at that time. Sodium reacts with carbon dioxide in the air to cause neutralization reaction and change to weakly basic sodium carbonate, so the pH of the floating ultra-thin soap bubble rapidly drops and changes naturally from colored to colorless It is.
More chemically speaking, when the pH indicator structure changes between low pH and high pH, when the pH is high (when the pH becomes 9.8 or higher), part of the structure bond is broken and the color changes. The mechanism is that the color develops and the color disappears when the pH is lowered by carbon dioxide.
This principle is well known, but it contains a pH indicator, a nonionic surfactant or a combination of a nonionic surfactant and an anionic surfactant, a base-resistant water-soluble polymer compound, a preservative, and water. There has been no report of a case where it is combined and adjusted to a pH of 9.8 or higher with a strong inorganic basic compound and applied to a color soap bubble that does not stain clothes or walls.
Phenolphthalein can also be used, but thymolphthalein and O (ortho) cresolphthalein are preferable because the color disappears for a long time.
The addition amount of the pH indicator is 1 to 5% by weight, preferably 2% by weight or more in the case of thymolphthalene, and 1.5% by weight or more in the case of O (ortho) -cresolphthalein. You will not be able to enjoy soap bubbles with
Further, if it is 5% by weight or more, it is not economical, and it is unnecessary because the color density does not change any more.
The base-resistant water-soluble polymer compound refers to a substance that does not decompose or decrease in viscosity even at a pH of 9.8 or higher, and examples thereof include polyvinyl alcohol, tamarind seed gum, xanthan gum, and guar gum.
Examples of strong inorganic basic compounds include sodium hydroxide, potassium hydroxide, and trisodium phosphate, which are strongly basic (alkaline).
However, in view of safety, trisodium phosphate that can be used for food additives is more preferable.
Examples of the preservative include Na benzoate and p-hydroxybenzoate.
The color soap bubble liquid of the present invention is colorless at pH 8.8 or less, and changes color to pH at pH 9.8 or more, a base-resistant water-soluble polymer compound, a nonionic surfactant or a nonionic surfactant and an anion. A combination of an ionic surfactant and a preservative is dispersed and dissolved in water, and an inorganic strong basic compound is added to obtain a pH of 9.8 or more.
In making the color soap bubble liquid of the present invention, saccharides such as sucrose, glucose and fructose, and humectants such as propylene glycol, glycerin and sorbitol can be used as other components.

Next, the present invention will be specifically described with reference to examples. In addition, the part in an Example represents a weight part.

1.8 parts of O-cresolphthalein “molecular weight 346.33, 5.19 mmol (mmol)” as a pH indicator that is colorless at pH 8.8 or lower and changes color to pH 9.8 or higher, a base-resistant water-soluble polymer compound 8 parts of 10% PVA aqueous solution, 2.7 parts of polyoxyethylene (7 mol addition of ethylene oxide) alkyl ether (HLB12.1) as nonionic surfactant, 1 part of glycerin, 0.2 part of benzoic acid Na as a preservative Add to water little by little, add 3.95 parts of trisodium phosphate dodecahydrate (molecular weight 380.12, 10.38 mmol) of inorganic strong basic compound with slow stirring so as not to foam as much as possible, dissolve, A reddish purple soap bubble is obtained. The pH of this solution was 12.3.

Thymolphthalein 3 parts (molecular weight 430.54, 6.96 mmol) as a pH indicator, xanthan gum 0.2 parts as a base-resistant water-soluble polymer compound, polyoxyethylene (9 mol of ethylene oxide added) as a nonionic surfactant 2.5 parts of alkyl ether (HLB13.3), 0.4 parts of sodium dodecylbenzenesulfonate as an anionic surfactant, 1 part of sugar, 0.2 part of P (para) oxybenzoic acid methyl ester (methylparaben) as a preservative Is added to water and stirred with 0.6 parts of sodium hydroxide (molecular weight 40, 13.93 mmol) as an inorganic strong basic compound to obtain a blue colored soap bubble solution. The pH of this solution was 12.4.
Color soap bubbles obtained in this way are colored blue or magenta when they become soap bubbles in the air, and the color disappears naturally in the air. You can enjoy the color soap bubbles without polluting.
In the evaluation, pre-manufactured color soap bubble liquid is stored in a three-sided seal package that is vapor-deposited aluminum so that the color does not disappear when it comes into contact with air. The bubbles were blown to make soap bubbles, and the time when the color disappeared and the number of soap bubbles were observed.
The soap bubble liquid using thymolphthalein has a deep blue color, and the soap bubble is colored blue and becomes transparent in 1 to 2 minutes while flying and flying. Moreover, it was confirmed that the color disappeared in 10 to 30 minutes by dripping soap bubbles on handkerchiefs and clothes.
Furthermore, soap bubbles using O (ortho) cresolphthalein had a deep reddish purple color and were similarly observed. The color disappears for several tens of minutes longer than thymolphthalein, but it is confirmed that the color disappears completely.
In addition, as a comparative example, the example in which the surfactant of Example 2 is used alone and the example in which the nonionic surfactant and the anionic surfactant in Example 2 are combined are compared. It was found that the combination of Example 2 was more preferable because the number of soap bubbles on the side was 30 to 40 and the comparative example was 10 to 15 in number.
A fragrance can be added to the color soap bubble liquid, so that the color soap bubble can be enjoyed while having fun.

The soap bubbles are colored, and the color soap bubbles liquid that disappears naturally in the air has been created, making it possible to mix colorful soap bubbles using a mechanical continuous soap bubble generator, making it ideal for events and attracting customers. It is.

Claims (5)

1 to 5% by weight of a pH indicator that changes to a color at pH 8.8 or less, and changes to a color at pH 9.8 or more, 0.01 to 5% by weight of a base-resistant water-soluble polymer compound, a nonionic surfactant or a nonionic surfactant Color soap bubbles characterized in that the combination of an agent and an anionic surfactant is 0.5 to 5% by weight, and a composition comprising an antiseptic and water is adjusted to a pH of 9.8 or more with an inorganic strong basic compound liquid. The color soap bubble liquid according to claim 1, wherein the pH indicator is thymolphthalein or O (ortho) cresolphthalein. The color soap bubble according to claim 1, wherein the nonionic surfactant is a poxyethylene alkyl ether and the combination of the nonionic surfactant and the anionic surfactant is a polyoxyethylene alkyl ether and Na alkyl sulfonate or Na alkyl benzene sulfonate. liquid. The color soap bubble liquid according to claim 1, wherein the inorganic strong basic compound is selected from Na hydroxide, K hydroxide, and tri-Na phosphate. The color soap bubble liquid according to claim 1, wherein the base-resistant water-soluble polymer compound is polyvinyl alcohol, tamarind seed gum, xanthan gum or guar gum.