JP4005844B2 - Foaming composition - Google Patents

Description

【００２９】
表１の試験結果より、界面活性剤としてポリオキシエチレンラウリルエーテルとラウリル硫酸ナトリウムを併用したものは、ポリオキシエチレンラウリルエーテルまたはラウリル硫酸ナトリウムを単独で使用した場合に比べて、起泡性および、貯蔵安定性が飛躍的に改善されているものと認められる。
【００３０】
【発明の効果】
本発明の起泡性組成物は起泡力および貯蔵安定性に優れ、特に台所、浴室、洗面所等の排水口、排水パイプ、ストレーナーなどの除菌漂白洗浄剤として好適なものである。[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a foaming composition having a high foaming ability and capable of exhibiting effects such as washing, sterilization, bleaching, deodorization, etc., and drainage and drainage for kitchens, bathrooms, toilets, etc. It is suitable as a disinfecting bleach cleaner for pipes, strainers and the like.
[0002]
[Prior art]
Drainage outlets, drain pipes, strainers, etc. in kitchens, bathrooms, washrooms, etc., grow with various germs and are covered with slime as they are used, and stains such as whitening and darkening due to scales occur. Such dirt cannot be easily removed by simply immersing it in a commercially available detergent, and must be scraped off with a scrubber or a brush.
As a method for easily washing and removing such dirt, a method has been proposed in which carbonate and organic acid are reacted in water to cause the generated carbon dioxide gas bubbles to contact and rub against the dirt.
[0003]
Moreover, what added various surfactant in order to provide the improvement of detergency and the sustainability of foam is marketed. However, since such a foamable composition has a storage stability problem that the surfactant accelerates the reaction between the carbonate and the organic acid during storage, the blending amount of the surfactant is limited, The amount of foam generated and the sustainability were not sufficient.
Furthermore, oxidants such as chlorinated isocyanuric acid, halogenated hydantoin, potassium monohydrogen persulfate and the like are added to the foaming composition as described above to impart enhanced detergency, disinfection, bleaching, deodorizing effects, etc. Things are also done.
[0004]
For example, Japanese Patent Application Laid-Open No. 11-148098 proposes a sterilizing detergent containing a chlorine-based disinfectant, an organic acid and a carbonate, and a surfactant. However, in the above publication, various surfactants of nonionic, amphoteric, anionic and cationic types are exemplified as surfactants to be added to the sterilizing detergent, and one or two selected from these surfactants are exemplified. It only describes that it can be used in combination of more than one species, and does not describe the effects obtained by using polyoxyethylene lauryl ether and sodium lauryl sulfate, which is a feature of the present invention.
[0005]
That is, in the disinfectant cleaning composition shown in the examples of the above publication, sufficient foaming properties are not yet obtained, and the soil removal performance by foaming is not satisfactory.
In addition, the storage stability of the sterilizing detergent is not sufficient, and carbon dioxide gas is generated during storage of the detergent, and the packaged product may expand or rupture. Moreover, since carbon dioxide gas is partially generated at the time of use, there is a problem that foamability is reduced.
[0006]
For this reason, when manufacturing and packaging the cleaning agent, the humidity in the working atmosphere must be reduced to eliminate the influence of moisture in the air, and a pinhole is provided in the packaging bag to degas. Measures such as taking were necessary.
[0007]
[Problems to be solved by the invention]
The present invention has a high foaming power, can exhibit effects such as washing, sterilization, bleaching, deodorization and the like, and does not require management of the working environment at the time of manufacture or processing of packaging materials, storage It aims at providing the foamable composition excellent in stability.
[0008]
[Means for Solving the Problems]
As a result of intensive studies to achieve the above object, the present inventors have blended alkali metal carbonate and organic acid as a foaming agent, polyoxyethylene lauryl ether and sodium lauryl sulfate as a surfactant, By combining potassium monohydrogen persulfate double salt or dichloroisocyanuric acid sodium salt as the oxidizing agent, the intended purpose has been achieved.
[0009]
This type of cleaning agent is blended with a foaming agent and a surfactant in order to obtain a cleaning effect due to foam. However, in the examples found in the prior art, surfactants are used properly according to the type of dirt to be cleaned.
[0010]
The present inventors have combined the use of polyoxyethylene lauryl ether and sodium lauryl sulfate as surfactants to be contained in the foamable composition, so that the foamability is higher than when these are used alone. We found that it increased dramatically.
That is, sodium lauryl sulfate is known as a surfactant having a higher foamability than before (for example, JP-A No. 10-158695), but when polyoxyethylene lauryl ether is used in combination with this sodium lauryl sulfate. Surprisingly, the foaming property was dramatically increased by the synergistic effect of the two.
[0011]
As a result, the amount of the surfactant used can be reduced, which is advantageous in terms of production cost and desirable from the viewpoint of environmental pollution.
[0012]
Further, it should be noted that the addition of polyoxyethylene lauryl ether and sodium lauryl sulfate as surfactants to a blend of organic acid and carbonate as a foaming agent impairs the storage stability of the composition. It was possible to solve this problem.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
The alkali metal carbonate used in the present invention reacts with an organic acid in water to generate carbon dioxide gas. In general, sodium carbonate, sodium bicarbonate, potassium carbonate, potassium bicarbonate and sodium percarbonate are known. It has been.
[0014]
The organic acid used in the present invention has a solubility of 0.5% by weight or more at 25 ° C., for example, succinic acid, fumaric acid, citric acid, adipic acid, oxalic acid, L-ascorbic acid, tartaric acid, malon. Examples include acid, malic acid, and lactic acid.
[0015]
The surfactants used in the present invention are polyoxyethylene lauryl ether and sodium lauryl sulfate.
[0016]
The polyoxyethylene lauryl ether has the general formula RO (CH ₂ CH ₂ O) _n H [wherein R is a linear or branched alkyl group having 12 carbon atoms, and the average number of moles of oxyethylene group added is n. Is 11-30. ] It is a well-known nonionic surfactant shown by these.
[0017]
[0018]
The amount of the surfactant should be 0.1 to 2% by weight with respect to the foamable composition.
In addition, in the combined use of the above two types of surfactants, if either one of the surfactants is less than 0.1% by weight, the amount of foam generated and sustainability is insufficient, and the amount exceeds 2% by weight. However, the amount of foam generated does not change, and the storage stability of the composition deteriorates.
[0019]
Cormorant Ru acid agent used in the present invention, may be mentioned di-chloro isocyanuric acid sodium salt, the mono-potassium hydrogen persulfate double salt.
[0020]
The amount of the oxidizing agent should be in the range of 10 to 90% by weight. If the blending amount is less than 10% by weight, the active chlorine or active oxygen concentration at the time of use is too low, so that satisfactory sterilization, bleaching and deodorizing effects cannot be obtained, and if it exceeds 90% by weight. The content of the alkali metal carbonate, which is a foaming agent, and the organic acid is reduced, and sufficient foamability cannot be obtained.
[0021]
The foaming agent, surfactant and oxidizing agent used in the present invention are solid powder or granule. The foamable composition of the present invention can be produced by mixing these raw materials according to a conventional method. Further, the mixture can be compression-molded to form a molded product such as a granulated product, briquette or tablet.
[0022]
[Action]
When the foamable composition of the present invention is introduced into a drain pipe or the like, the foaming agent reacts with water to generate carbon dioxide gas, and countless bubbles are formed. When these bubbles come into contact with the dirt, the dirt is peeled off. Furthermore, since the foam formed in this way is stabilized by the action of the surfactant, the effect of removing dirt is also maintained.
In addition, the oxidizing agent contained in the foaming composition reacts with water to generate active chlorine or active oxygen, which oxidizes the components of the soil. It can be performed.
[0023]
【Example】
EXAMPLES Hereinafter, although an Example and a comparative example demonstrate this invention in detail, this invention is not restrict | limited to these Examples.
The raw materials and evaluation test methods used in the examples and comparative examples are as follows.
[0024]
[material]
As a foaming agent;
・ Sodium carbonate: Tokuyama ・ Sodium bicarbonate: Tokuyama ・ Sodium percarbonate: Nippon peroxide ・ Succinic acid: Takeda Pharmaceutical ・ Citric acid: Fuso Chemical Industry ・ Fumaric acid: Kawasaki Chemical Industries ;
・ Polyoxyethylene lauryl ether: “Adecatol LA50” manufactured by Asahi Denka
-Sodium lauryl sulfate: Shin Nippon Rika "Sinoline 90TK-N"
As an oxidant;
・ Dichloroisocyanuric acid sodium salt: “SDIC-MG” manufactured by Shikoku Kasei Kogyo
・ Potassium monohydrogen persulfate double salt: DuPont “OXON”
[0025]
[Foamability test]
400 ml of distilled water adjusted to 25 ° C. was poured into a 2 liter graduated cylinder, and 20 g of the foamable composition was added. After the completion of the generation of bubbles, the volume of the generated bubbles (foaming amount) was measured. It was determined that the larger the foam volume, the better the foamability.
[0026]
[Storage stability test]
20 g of the foamable composition in a polypropylene bag (80 mm × 120 mm), heat sealed, and sealed, is left in a constant temperature and humidity chamber adjusted to 50 ° C./90% RH, and the bag expands. The time until was measured. It was determined that the longer the time until the bag inflated, the better the storage stability.
[0027]
[Examples 1-6, Comparative Examples 1-3]
According to the blending ratio (% by weight) described in Table 1, the foaming agent, surfactant and oxidizing agent were dry mixed to prepare a foamable composition.
When the resulting composition was subjected to a foaming test and a storage stability test, the test results were as shown in Table 1.
[0028]
[Table 1]

[0029]
From the test results in Table 1, the combination of polyoxyethylene lauryl ether and sodium lauryl sulfate as the surfactant is more foamable and more resistant than the case where polyoxyethylene lauryl ether or sodium lauryl sulfate is used alone. It is recognized that the storage stability has been dramatically improved.
[0030]
【The invention's effect】
The foaming composition of the present invention is excellent in foaming power and storage stability, and is particularly suitable as a sterilization bleaching detergent for drains, drainage pipes, strainers and the like in kitchens, bathrooms, and washrooms.

Claims (1)

Foaming composition containing alkali metal carbonate and organic acid as foaming agent, polyoxyethylene lauryl ether and sodium lauryl sulfate as surfactant and potassium monohydrogen persulfate double salt or dichloroisocyanuric acid sodium salt as oxidizing agent ones, and the foaming composition, wherein the mixing ratio of the polyoxyethylene lauryl ether and sodium lauryl sulfate are each 0.1 to 2 wt%.