JPS6013702B2 - liquid deodorant - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a liquid deodorant that exhibits a remarkable deodorizing effect for a long period of time, and particularly to a liquid deodorant that physicochemically acts on various gas molecules that cause bad odors to completely eliminate odor. This invention relates to an aqueous deodorizing agent that exhibits excellent deodorizing effects.

Most of the bad odors are generated from biological excreta or decaying matter, sewage containing them, dust, sewage, etc.
Chemically, the sources of these bad odors are most often sulfur atom-containing compounds such as sulfur dioxide, hydrogen sulfide, mercaptans, and alkyl sulfides, and nitrogen atom-containing compounds such as ammonia, nitrogen dioxide, and beptones. .

In the past, various deodorizing agents have been proposed to remove such bad odors or foreign odors. There is.

This is widely used in households for the purpose of deodorizing refrigerators, dish rooms, etc., and its deodorizing effect occurs when gas molecules that are the source of bad odors or foreign odors come into contact with the activated carbon layer, inside the micropores. This is due to the mechanism of adsorption through physical adsorption. However, it is quite difficult to obtain a satisfactory deodorizing effect using such physical adsorption, and the ability of this activated carbon adsorbent to adsorb and deodorize such malodors and foreign odors decreases over time. It has the disadvantage of a short lifespan.

On the other hand, as a method for deodorizing bad odors, there is a method of masking the bad odor using a strongly aromatic fragrance, or a method of using a chemical deodorant containing an organic acid such as citric acid or an aldehyde such as glyoxal as an active ingredient. However, these methods have the disadvantage that the ingredients used themselves have odors, and they do not have sufficient deodorizing effects against ammonia, hydrogen sulfide, and mercaptans. There is.

The inventor of the present invention has conducted extensive research in order to develop a deodorizing agent that exhibits superior deodorizing effects from this point of view, and has found that a dilute aqueous solution of sodium acrylate gradually evaporates, becomes a mist, or is dispersed. The present invention has been completed based on the discovery that when soaked and crushed, it acts on various malodors and foreign odors and exerts an excellent deodorizing effect.

That is, the present invention relates to a liquid deodorant containing sodium acrylate as an active ingredient in an aqueous medium.

The present invention will be explained in detail below.

Generally, the aqueous medium used in the present invention may be water alone, but if necessary, it may be a mixture of water and a hydrophilic organic solvent. Alcohols such as, ketones such as acetone, ethers such as diethyl ether~
Examples include esters such as ethyl acetate.

The liquid deodorant of the present invention can be obtained by adding and dissolving sodium acrylate in such an aqueous medium, but if the concentration of sodium acrylate is too high, the deodorizing effect will not be exhibited. Therefore, it is necessary to use it as a dilute aqueous solution, for example, prepare an aqueous solution with a concentration of 0.1% as a stock solution, and use it for refrigerators with an additional 100 to 50 needles.Also, when using it as an aerosol method, 200% "1000 to 4 when used against general foul-smelling gas (chemical factories, etc.)
When diluted, it has an excellent deodorizing effect.

In addition, with sodium acrylate, there is no problem in using at least one member selected from sodium polyacrylate, acrylic amide, polyacrylic amide, and sodium acrylate-acrylic amide copolymer. The odor effect may be further improved.Also, sodium acrylate is a compound that easily polymerizes, so there is a risk that it will partially polymerize into a polymer in an aqueous medium; Since it is easily soluble and also has a deodorizing effect, there is no particular disadvantage if such polymerization occurs.

Of course, if necessary, there is no problem in adding polymerization inhibitors, and for the purpose of adjusting the viscosity of the liquid and improving stability, etc. Hydroxyethyl ethylcellulose, surfactants, fragrances, pH regulators, sterilizers, anti-bacterial agents, etc. may also be added. In addition to being effective in deodorizing livestock sheds and other areas that generate bad odors, it is also used as a deodorizer for kitchens, refrigerators, and dish rooms in general households, as well as footwear, the inside of automobiles, and the human body (armpits). Next, examples of the present invention will be described.

Example 1 A 0.1% aqueous solution of sodium acrylate was prepared and further diluted 200 times to obtain a deodorant.

This deodorizer and the commercially available deodorizer K, which uses activated carbon as a main ingredient.
When the deodorizing effect of ammonia odor in the refrigerator was tested using the following methods, the following results were obtained.

However, approximately 100 ml of the above dilute deodorizing agent was placed in an open container and placed in a refrigerator. Ammonia amount (ppm
) (Change over time) As can be seen from the above results, the deodorizing agent of the present invention exhibits an extremely strong deodorizing (deodorizing) effect over time. This effect lasts as long as the deodorant exists. .

Example 2 When the deodorizing effect of trimethylamine odor in a refrigerator was tested using the deodorizing agent of the present invention and K described in the previous example, the following results were obtained.

Trimethylamine amount (ppm) (change over time)

Claims (1)

[Claims] 1. A liquid deodorant containing sodium acrylate as an active ingredient in an aqueous medium.