JPH067417A - Deodorant - Google Patents

Abstract

PURPOSE:To provide the sensory deodorizing effect with a small quantity of a deodorant used at the level causing no personal preference difference about scent against the mercaptan odor and make the odor nonoffensive after its use by using one of eugenol, cinnamaldehyde, p-cymene, benzaldehyde, and benzyl acetate as the essential constituent. CONSTITUTION:At least one kind selected from a group of eugenol, cinnamaldehyde, p-cymene, bensaldehyde, and benzyl acetate which are volatile and fragrant materials is contained as the essential constituent in a deodorant against the mercaptan odor which is the main constituent of the garbage odor and the malodor generated from sewage. Even when a small quantity of the deodorant is used against the mercaptan odor at the level causing no personal preference difference about scent, the scent of the volatile and fragrant material is mixed with the mercaptan odor and offset each other, the intensity of the odor is reduced by the sensory neutralizing function, uncomfortableness is improved, the malodor is deodorized, and the odor after mixing is made nonoffensive.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention provides a sensory odor of mercaptans, such as methyl mercaptan, which is the main component of malodors and off-flavors, particularly the smell of garbage and the odor generated from sewage (treatment plant). The present invention relates to a deodorant capable of deodorizing by a neutralizing action (smelling effect of odor).

[0002]

BACKGROUND ART Generally, foul odors and offensive odors are emitted from factory smoke, waste liquid, sewage (treatment plant), cigarettes and human waste, and kitchen garbage, etc. is there. In the home, odors from toilets, kitchens, kitchen garbage, pets, cigarettes, etc., sweat odors, body odors, and off-flavors of socks cause discomfort, irritation, headaches, and the like. In particular, it is often troubled in the summer and the like, and when the air conditioner is operated, it is often kept in a closed room. Therefore, countermeasures against these bad odors and offensive odors are a big problem.

Conventionally, the following methods (1) to (3) are roughly classified as methods for eliminating such an offensive odor or a strange odor. Sensory deodorization method: A method that masks offensive odors and offensive odors by the fragrance emitted by aromatic substances to make them difficult to sense. Physical deodorization method: A method of diluting and removing a bad odor by ventilation / diffusion, adsorbing an odor using silica gel or activated carbon, or encapsulating an odorous substance with an inclusion compound such as cyclodextrin.

Chemical deodorizing method: A method of deodorizing by chemically reacting (neutralizing, adding, condensing, oxidizing, etc.) with a malodorous or offensive odor component. For example, a direct flame combustion method or an oxidation method using an oxidizing agent such as ozone or potassium permanganate. Biological deodorant method: destroying the microorganisms that cause decay,
A method to prevent spoilage and prevent the generation of foul odors.

[0005]

Among these, the above-mentioned sensory deodorizing method is a method mainly used in ordinary households. However, the conventional sensory deodorizing method uses an aromatic substance having an extremely strong intensity against an offensive odor and a foul odor source, because the target odor is concealed by a so-called masking action.
In this method, the odor after mixing can be felt more strongly (the odor intensity increases as described below) and the odor becomes more unpleasant (comfort or discomfort as described below) compared to the odor and offensive odor before mixing. In most cases). Furthermore, since the scent of the aroma substance itself is strong, the smell causes an unpleasant mood, or an atmospheric odor of a specific space such as a toilet, a living room, or the inside of a car. Often they feel unpleasant. Furthermore, since the scent has a strength that allows the odor to be clearly perceived, individual preference differences become a problem. In this way, the current sensory deodorant method has many drawbacks and it is hard to say that it removes bad odors and off-flavors [Technical Information Institute "Development and development of new deodorants and industrial deodorants. Approach to commercialization ”, supervised by Masaki Inari, 1989].

In view of such circumstances, the present invention provides a odor of mercaptans such as methyl mercaptan, which is a main component of odors and offensive odors, particularly odors of raw garbage and odors generated from sewage (treatment plant). On the other hand, even if the amount used is such that there is no difference in preference for individual scents, it is possible to exert an excellent sensory deodorizing effect and to eliminate the unpleasant odor after use. An object is to provide an odorant.

[0007]

In order to solve the above problems, the inventors have made various studies. As a result, if a specific volatile aroma substance is included as an essential component, even if the amount used is such that there is no preference difference regarding the scent of an individual, the aroma and mercaptan odor of the volatile aroma substance Experiments have shown that the sensual neutralizing effect of mixing and canceling each other reduces odor intensity, improves pleasantness / discomfort, eliminates bad odors, and the odor after mixing is not unpleasant. After confirmation, the present invention was completed.

Therefore, the deodorant according to the present invention is
A deodorant for mercaptans, which is characterized by containing at least one selected from the group consisting of eugenol, cinnamaldehyde, p-cymene, benzaldehyde and benzyl acetate as an essential component. Eugenol, cinnamaldehyde, p- used in this invention
Cymene, benzaldehyde and benzyl acetate are all volatile substances that emit an aroma (hereinafter, these may be simply referred to as "volatile aroma substances"). These may be used alone or in combination of two or more.

The content of the volatile odorous substance is not particularly limited, but it should be an amount such that the odor intensity of the deodorant used for bad odors or off-flavors will be 2 or less, which will be described in detail later. Is preferred. If the upper limit of this range is exceeded, the fragrance of the volatile odorous substance becomes too strong, so that a masking effect is expressed, or a strong scent stays in a specific space for a long time, giving an unpleasant feeling, or This is because there may be a problem of difference in preference for scent.

The deodorant of the present invention may contain water, an organic solvent or the like as a diluent, and may contain a surfactant, if necessary. The organic solvent that can be used is not particularly limited, for example, methanol,
Alcohols such as ethanol, methyl ethyl ketone,
Examples thereof include hydrophilic organic solvents such as ketones such as acetone, and hydrophobic organic solvents such as petroleum ether, hexane, ethyl acetate and the like.

The surfactant that can be used is not particularly limited, and examples thereof include cationic surfactants, anionic surfactants, amphoteric surfactants and nonionic surfactants. The deodorant of the present invention is, if necessary, a component having a deodorizing effect by a chemical reaction, for example, a deodorant active component extracted from a plant, L-tartaric acid, maleic acid, succinic acid, malic acid. , One or more kinds of organic acids such as citric acid and lactic acid, and chemical substances such as glyoxal may be contained. In this case, the sensory deodorant effect and the chemical deodorant effect 2
It is a deodorant that has both deodorant effects. The above-mentioned deodorant active ingredient extracted from the plant is, for example,
Water, hydrophilic organic solvent, or a mixed solvent thereof from each organ of the plant such as Oxalis, Dokudami, Tsuga, Ginkgo, Japanese black pine, Japanese larch, Japanese red pine, kiri, holly lacquer, lilac, butterbur, butterbur, Tsuwabuki, or forsythia It is a deodorant active ingredient extracted by using.

Regarding the method of using the deodorant of the present invention,
The method is not particularly limited, and examples thereof include a method in which a spray can is enclosed with a propellant and the like, and sprayed. Examples of the propellant include LPG (liquefied natural gas), DME (dimethyl ether), CFC gas, carbon dioxide gas, compressed air, and the like, but are not particularly limited. Further, a porous carrier such as zeolite, aluminum silicate, silica gel, polyester and calcium silicate may be impregnated with the deodorant of the present invention.

[0013]

[Effect] If at least one volatile odorant selected from the group consisting of eugenol, cinnamaldehyde, p-cymene, benzaldehyde and benzyl acetate is contained as an essential component, no preference difference regarding individual scent appears. Even with a small amount of odor, the odor intensity is lowered due to the sensory neutralizing effect that the fragrance of the volatile aroma substance and the odor of the mercaptan are mixed with each other to offset each other with respect to the odor of the mercaptans. The discomfort is improved, the malodor is eliminated, and the odor after mixing is not unpleasant.

[0014]

EXAMPLES Specific examples and comparative examples of the present invention will be shown below, but the present invention is not limited to the following examples. The odor intensity sensory test and the pleasantness / discomfort degree sensory test conducted in the following Examples and Comparative Examples were evaluated as follows with respect to the odor intensity and the pleasantness / discomfort degree.

The odor intensity is 6 of 0, 1, 2, 3, 4, 5
It was evaluated by the numerical value of the stage. Odor intensity 0 is "not felt", 1
Means "slightly feel", 2 means "feels slightly strong", 3 means "feels strongly", 4 means "feels very strong", 5 means "feels extremely strong". The degree of comfort / discomfort is +
The evaluation was carried out using 7 levels of 3, +2, +1, 0, -1, -2, and -3. Pleasure / discomfort degree +3 is "pleasant", +2 is "somewhat pleasant", +1 is "somewhat pleasant", 0 is "not pleasant or unpleasant", -1 is "somewhat unpleasant", -2
Means "somewhat uncomfortable" and -3 means "uncomfortable".

-Examples 1 to 5-The deodorants of Examples 1 to 5 are prepared by placing the volatile aroma substances shown in Table 1 below in closed containers and saturating the inside of these containers with the volatile aroma substances. Got -Comparative Example 1-A commercially available fragrance (forest scent) was placed in a closed container, and the inside of this container was saturated with the fragrance to obtain the deodorant of Comparative Example 1.

With respect to each of the deodorants obtained in the above Examples 1 to 5 and Comparative Example 1, the deodorizing effect on methyl mercaptan was examined as follows. In a bag of 3L capacity in which the odor intensity of methyl mercaptan is adjusted to about 3,
In the case of the deodorant of the example, the odor intensity of the deodorant itself is about 1, and in the case of the deodorant of the comparative example, the odor when actually using the fragrance at home Each deodorant was injected so that the strength of the deodorant was about 3 (the odor intensity was about 3). The deodorizing effect is the mixed odor in the bag thus obtained,
Regarding the odor in the aforementioned bag containing only methyl mercaptan, the odor intensity and the degree of comfort / discomfort were evaluated by 10 panelists with similar olfaction, and the average value was calculated. The results are shown in Table 1.

[0018]

[Table 1]

As can be seen from Table 1, the deodorants of Examples 1 to 5 were used in such an amount that no difference in preference for individual scents was produced as compared with the deodorants of Comparative Example 1. It was confirmed that both the effect of reducing odor intensity and the effect of improving pleasantness / discomfort for methyl mercaptan were excellent. -Examples 6 to 9-The volatile aroma substances shown in Table 2 below were used as a deodorant active ingredient extracted from forsythia, glyoxal, a surfactant,
Volume 2 with citric acid, lactic acid, water and ethanol
The deodorant of Examples 6-9 was obtained by putting in the L Erlenmeyer flask and mixing. However, the odor intensity of the deodorant in the flask was set to about 1.

Comparative Example 2 A comparative example was prepared by adding only a deodorant active ingredient, glyoxal, a surfactant, citric acid, lactic acid, water and ethanol extracted from forsythia to an Erlenmeyer flask having a capacity of 2 L and mixing them. A deodorant of 2 was obtained. Example 6-
For each of the deodorants obtained in Example 9 and Comparative Example 2, the deodorizing effect on the garbage odor mainly composed of mercaptan odor was examined as follows.

Each of the Erlenmeyer flasks containing the deodorants of Examples and Comparative Examples was charged with garbage (which was put to rest for 5 days in a thermostat at 25 ° C. and putrefaction). The deodorizing effect is obtained by comparing the odor intensity and pleasantness / discomfort of the mixed odor in the flask thus obtained and the odor in the flask containing only the garbage with the same olfactory panel of 10 persons. It evaluated by having it evaluated and asked for the average value.
The results are shown in Table 2.

[0022]

[Table 2]

As shown in Table 2, the deodorants of Examples 6 to 9 were about the same in the effect of reducing the odor intensity with respect to the odor of raw garbage as compared with the deodorant of Comparative Example 2. , Pleasant
It was confirmed that all were excellent in the effect of improving discomfort.

[0024]

EFFECTS OF THE INVENTION According to the deodorant of the present invention, mercaptans such as methyl mercaptan, which is a main component of malodors and off-flavors, in particular, smells of garbage and malodors generated from sewage (treatment plant). Even if the amount used is such that there is no difference in preference for individual scent with respect to odor, it is possible to exert an excellent sensory deodorizing effect and to make the odor after use unpleasant. it can.

Claims (1)

[Claims] 1. A deodorant for mercaptans, comprising at least one selected from the group consisting of eugenol, cinnamaldehyde, p-cymene, benzaldehyde and benzyl acetate as an essential component. Agent.