JPS61206449A - Deodorant - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Technical Field] The present invention relates to a deodorant that eliminates bad odors and strange odors. The source is kitchen waste, etc., and there are a wide variety of types of foul odors and strange odors. especially,
In homes, rooms are often kept closed when air-conditioning equipment is in operation, so countermeasures against these foul odors have become a major problem.

There are four ways to eliminate these bad odors and strange odors:
There are two ways.

■ Sensory deodorization method: A method of masking bad odors and foreign odors using aromatic substances (fragrances, etc.).

■ Physical deodorization method: Diluting and removing off-odors through ventilation and diffusion, adsorbing odors using silica gel or activated carbon, or enclosing odorous substances with clathrate compounds such as cyclodextrin. How to interact.

■ Chemical deodorization method: A method of chemically reacting (neutralization, addition, condensation, oxidation, etc.) with malodor and off-flavor components to make them odorless.

For example, oxidation using direct flame combustion methods or oxidizing agents such as ozone or potassium permanganate.

■ Biological deodorization method: A method that reduces and kills bacteria that cause spoilage, prevents spoilage, and prevents the occurrence of bad odors.

The sensory deodorizing method (2) is a method that is mainly practiced in households, and is a method that uses the fragrance of the deodorant itself to deodorize bad odors and foreign odors. However, with this method, it is difficult to balance the fragrance and odor.Furthermore, people have different tastes in the scent of deodorants, and they may sometimes develop a dislike window. It's hard to say. The physical method (2) is widely used, but it has problems such as the need for equipment, fluctuations in room temperature, and the fact that activated carbon does not have a long-lasting adsorption effect on bad odors and off-flavor components. . In addition, with chemical deodorization method ■, it is extremely difficult to select substances that effectively react with a wide variety of malodorous components.
It is not common, partly because the drugs used must be handled with care. Furthermore, the biological deodorizing method described in (2) also requires equipment and has the disadvantage of slow onset of effects, and the current situation is that each deodorizing method has its own advantages and disadvantages. On the other hand, it was devised to extract the active ingredients from plants and use them as a deodorant, which itself is odorless and does not require large-scale equipment. However, the deodorizing effect of plant extracts varies depending on the target odor, and they are also susceptible to microbial deterioration such as putrefaction and fermentation, so in order to prevent this, alcohol and preservatives are used. It was necessary to take measures such as adding

Among those used as preservatives, surface-active quaternary ammonium salts also have a deodorizing effect, although the effect itself is insufficient. Various improvements have been made to utilize this 9th class ammonium salt more effectively. For example, there is a composition in which a frankincense flavoring agent is blended with a quaternary ammonium salt to obtain a composition having a higher deodorizing effect (Japanese Patent Laid-Open No. 54-4287). However, as mentioned above, deodorants that have their own scent are problematic.

[Purpose of the invention]

This invention was made in view of the above circumstances, and aims to provide a deodorizing agent that is odorless itself and has a high deodorizing effect against sulfur-based malodorous components. .

[Disclosure of the invention]

In order to achieve the above object, the inventors have made various considerations and decided to use an extract from a plant as an active ingredient with the addition of a surface-active class a ammonium salt.
Thinking that it would be possible to obtain a highly effective deodorant, he conducted various experiments and completed the first and second inventions.

That is, the gist of the present invention is a deodorant against sulfur-based odors, which is characterized by containing as active ingredients extracts from plants and quaternary ammonium salts having surface activity. do. That is, the deodorant according to the present invention comprises an extracted component obtained by extracting plant leaves, trees, etc. with water, a hydrophilic organic solvent, or a combination thereof, and a quaternary product having surface activity. It contains ammonium salt as an active ingredient and exhibits a high deodorizing effect on sulfur-based odors such as hydrogen sulfide and mercaptans. The present invention will be explained in detail below.

The raw material plants used in this invention are not limited as long as they have even the slightest deodorizing effect on sulfur-based odors. Examples include plants of the Oleaceae family such as forsythia and holly osmanthus, thorns, butterbur, and the like.

Examples of the extraction solvent include water or a hydrophilic organic solvent, and examples of the hydrophilic organic solvent include methanol, ethanol, acetone, and the like.

The extraction method is not limited as long as it is an extraction method for removing odor components from the raw material plant.

For example, water and ethanol are added to the raw material plants mentioned above.

Adding hydrophilic organic solvents such as alcohols such as methanol and ketones such as methyl ethyl ketone and acetone,
The active ingredients are thermally extracted using a Soxhlet extractor or the like.

This extraction operation may be performed using a mixed solvent of these hydrophilic organic solvents and water. The extract obtained in this way is applied to a low evaporator or a vacuum dryer to remove water or a hydrophilic organic solvent, thereby obtaining the deodorizing active ingredient as a solid. Therefore, this may be used as a deodorant as it is, or may be used after being dissolved in an appropriate solvent. The obtained deodorants can be used alone or in combination. Note that the extraction is not performed in one step as described above, but if necessary, odor components of the raw material plant may be eluted and removed in advance using a hydrophobic organic solvent such as hexane or petroleum ether. Alternatively, a steam distillation method may be used.

Examples of quaternary ammonium salts having surface activity include ammonium salts represented by the following general formula (r) and those represented by the general formula (
Examples include alkylpyridinium salts shown in n). These generally also have bactericidal properties and contribute to improving the deodorizing effect of the deodorant obtained by this invention.

(If) The blending ratio of the plant extract component and the surface-active quaternary ammonium salt is not particularly limited, but the weight ratio of (extract component): (quaternary ammonium salt) = 100 to 1:1. A range is preferred.

Regarding the usage of the deodorant obtained in this way,
Although not particularly limited, liquid formulation, spray type, or impregnated into a carrier, powder 2 tablets.

It is used for a wide variety of purposes, including molding into granules. When used as a liquid deodorant, the effective concentration of the deodorant solution is usually in the range of 0.05 to 5 ivt%.

Naturally, within this range, the higher the concentration, the more effective it is.
Although it can be said that the sustainability is long, if it exceeds this range, the odor of the deodorant itself will appear, and it tends to be unsuitable as a deodorant. Polyhydric alcohols such as glycerin and propylene glycol are usually used as additives in deodorant liquids to prevent the deodorant from scattering and to act as a preservative.

This deodorizing component can also be used in solid form. In this case, mix the above deodorizing liquid with a porous (° or permeable) inorganic material such as unglazed china clay, adsorb the deodorizing component onto the surface of the carrier, and fill it into a container. Alternatively, it can be mixed with gelatin and used in solid form.

When used by adsorption on the surface of a solid carrier, the weight ratio of the deodorant to the carrier is (deodorant):(carrier) -10 to 0.1.
:1 is desirable.

It is also possible to add fragrances, pigments, paint pigments, water retention agents, etc.

The deodorizing agent manufactured in this manner is itself odorless and can effectively and quickly contribute to deodorizing sulfur-based odors.

The present invention will be explained below based on examples thereof.

(Example 1) Dried leaves of Kiri are extracted with warm water at 50°C. The extract is filtered to obtain a filtrate, which is adjusted to a 0.5 wt% solution. Add cetylpyridinium chloride aqueous solution to this, 1) 00p
Deodorant solutions A and B are prepared by adding p and 1)000 pp, respectively.

In order to examine the deodorizing effects of the two types of deodorant solutions thus obtained, the following tests were conducted. Obtained 2
50 μβ of each of the two solutions were added to a glass container with a tightly stopper containing 1 ml each of solutions of two malodorous substances, ethyl mercaptan, and hydrogen sulfide. After 5 minutes, 2 cc of headspace gas from each container was sampled and the concentration of each malodorous substance was measured by gas chromatography. The sample to which no deodorant solution was added was also measured in the same manner, and the ratio of the concentrations was determined according to the following formula, which was determined as the odor removal rate. Also, as a comparative example,
Odor removal rates were determined in the same manner for plant extract solution C and 1) 000 pp cetylpyridinium chloride aqueous solution. The results are shown in Table 1.

Xo: Odor concentration X1 when no deodorant solution is added
:As can be seen from the odor concentration table when a deodorant solution is added, the deodorant according to the present invention is more effective against the above two kinds of bad odors than when extract or quaternary ammonium salt is used alone. It showed a much higher deodorizing effect.

(Example 2) A test similar to Example 1 was conducted using benzalkonium chloride as a quaternary ammonium salt having surface activity. The results are shown in Table 2.

As can be seen from the table, the deodorizing agent of the present invention exhibited a much higher deodorizing effect on the above two kinds of bad odors than the use of the extract or the quaternary ammonium salt alone.

(Example 3) Extracts from thorns, forsythia, and butterbur were prepared into a 3% aqueous solution, and an 800 ppo+ cetylpyridinium chloride aqueous solution was added thereto to prepare a deodorant solution. As a source of bad odor, put two rotten boiled eggs into a container with a tight stopper. A certain amount of the above deodorant solution and water as a comparative example were each sprayed into the container and left at room temperature. Immediately after spraying, on the 3rd and 7th day, the headspace gas in each container was taken, diluted appropriately, and the odor was evaluated by 10 experienced panelists based on the 6-point scale shown in Table 3 below. The results are shown in Table 4.

Note that the numerical values in the table are average values calculated from the remaining values after cutting off the upper and lower values of the evaluation values of the 10 panelists.

As can be seen from Tables 3 and 4, the deodorant according to the present invention showed higher effects immediately after addition, and was long lasting.

〔Effect of the invention〕

As seen above, this invention uses plant extracts and surface-active quaternary ammonium salts as active ingredients to create a deodorizer with a synergistic high deodorizing effect that could not be obtained with either agent alone. can be obtained. Moreover, the deodorant itself is odorless, poses no danger to the human body, and can be used in any form. That is, since this deodorant itself is odorless, it does not cause disgust in people due to its own odor unlike conventional deodorants, and does not require large-scale equipment. Moreover, a deodorizing agent that exhibits a high deodorizing effect against sulfur-based odors can be obtained. In addition, the sterilizing power of the quaternary ammonium salt inhibits the growth of bacteria that cause putrefaction and prevents the generation of bad odors.

Claims (1)

[Claims] (1) A deodorant against sulfur-based odors, which contains as active ingredients a plant extract and a quaternary ammonium salt having surface activity.