Fragrance for scenting wallpaper in an entrance hall or toilet, diffuser, and method for scenting wallpaper in an entrance hall or toilet.

Abstract

The purpose of this disclosure is to provide a fragrance for use in entrances or toilets, which is dispersed in the entrance or toilet and can impart an excellent fragrance to the wallpaper of the entrance or toilet. [Solution] A fragrance for scenting wallpaper in an entrance hall or toilet, comprising at least one fragrance selected from the group consisting of lime oil, spearmint oil, peppermint oil, ethyl butyrate, isoamyl acetate, lavender oil, lavandin oil, ylang-ylang oil, lemongrass oil, hexyl acetate, and citral.

Description

Technical Field

[0001] The present disclosure relates to a fragrance used by being volatilized in an entrance or a toilet, and capable of imparting an excellent fragrance to the wallpaper of the entrance or the toilet, that is, a fragrance for imparting fragrance to the wallpaper of the entrance or the toilet.

Background Art

[0002] In recent years, in order to improve the living environment, approaches from the perspective of fragrance have been made, and various types of air fresheners have been developed. Conventionally, air fresheners are known to include a type that imparts fragrance to the air by volatilizing a fragrance and making it float in the space, and a type that imparts fragrance to an article by attaching a fragrance to articles such as wallpaper, floors, and textile products. In the latter type, the type of directly spraying an air freshener on an article was the mainstream, but in recent years, a type that can impart fragrance to an article by attaching a fragrance volatilized in the space to the article has been reported. For example, Patent Document 1 describes that a fragrance for imparting fragrance to wallpaper, which is composed of one or more kinds of fragrance components having a vapor pressure of 0.010 to 1.0 hPa at 25°C and having a cyclic structure, adheres to the wallpaper when volatilized and is excellent in scent development and scent persistence after adhering to the wallpaper.

[0003] The fragrance for imparting fragrance to wallpaper described in Patent Document 1 is effective in improving the comfort of the indoor space. However, the awareness of pursuing further richness of the living environment is increasing more and more. In order to keep up with consumer needs, the development of a fragrance capable of imparting an excellent fragrance to wallpaper is required.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] The entrance and toilet are indoor spaces where odor control is particularly important. Because the volume of space in the entrance and toilet is smaller than that of living rooms, not only are unpleasant odors clinging to the wallpaper easily perceived, but the fragrances from perfumes attached to the wallpaper are also easily perceived. Therefore, applying a pleasant fragrance to the wallpaper in the entrance and toilet is an effective odor control measure.

[0006] Therefore, the purpose of this disclosure is to provide a fragrance for use by volatilizing it in an entrance or toilet, which can impart an excellent fragrance to the wallpaper of an entrance or toilet. [Means for solving the problem]

[0007] The present inventors conducted diligent studies to solve the aforementioned problems and found that certain natural fragrances (lavender oil, lavandin oil, spearmint oil, ylang-ylang oil, lemongrass oil, peppermint oil, and lime oil) and certain chain-like fragrances (hexyl acetate, ethyl butyrate, isoamyl acetate, and citral) readily adhere to wallpaper after volatilization, and the fragrance emitted after adhesion to the wallpaper is also pleasant. Therefore, they are suitable as fragrances to be volatilized in entrances or toilets where the smell of wallpaper is easily perceived. This disclosure was completed by further studies based on these findings.

[0008] In other words, this disclosure provides inventions in the following embodiments. Item 1. A fragrance for scenting wallpaper in entrances or toilets, comprising at least one fragrance selected from the group consisting of lime oil, spearmint oil, peppermint oil, ethyl butyrate, isoamyl acetate, lavender oil, lavandin oil, ylang-ylang oil, lemongrass oil, hexyl acetate, and citral. Item 2. The fragrance is at least one selected from the group consisting of lime oil, spearmint oil, peppermint oil, ethyl butyrate, and isoamyl acetate. A fragrance for wallpapering an entrance or toilet, as described in item 1, which is dispersed using a disperser that disperses the fragrance through a membrane. Item 3. A fragrance composition for fragrance of entrance or toilet wallpaper, comprising a fragrance and solvent described in Item 1 or 2. Item 4. The fragrance composition for scenting wallpaper in entrances or toilets as described in Item 3, A container body having an opening and containing the fragrance composition, A membrane covering the opening, A diffuser containing fragrance, used to scent the wallpaper in an entrance hall or toilet. Item 5. A method for fragranceing wallpaper in an entrance hall or toilet, comprising diffusing at least one fragrance selected from the group consisting of lime oil, spearmint oil, peppermint oil, ethyl butyrate, isoamyl acetate, lavender oil, lavandin oil, ylang-ylang oil, lemongrass oil, hexyl acetate, and citral in the entrance hall or toilet. [Effects of the Invention]

[0009] According to this disclosure, a superior fragrance can be imparted to the wallpaper of an entrance or toilet. By adding a pleasant aroma to the entrance or toilet through the fragrance emitted from the wallpaper, or by masking and deodorizing unpleasant odors adsorbed on the wallpaper, the entrance or toilet can be made into a comfortable space. Conventionally, fragrances used in entrances or toilets can impart fragrance to the air in the entrance or toilet, but they do not adhere well to the wallpaper. Therefore, they are insufficient in terms of imparting a pleasant fragrance to the wallpaper or deodorizing unpleasant odors adsorbed on the wallpaper. However, this disclosure overcomes these shortcomings of the prior art. [Modes for carrying out the invention]

[0010] 1. Fragrance for wallpaper used in entrances or toilets. The fragrances of this disclosure are fragrances for scenting wallpaper in entrances or toilets, that is, fragrances used to scent wallpaper in entrances or toilets. Specifically, the fragrances of this disclosure are characterized by comprising at least one selected from the group consisting of lime oil, spearmint oil, peppermint oil, ethyl butyrate, isoamyl acetate, lavender oil, lavandin oil, ylang-ylang oil, lemongrass oil, hexyl acetate, and citral. Lavender oil, lavandin oil, spearmint oil, ylang-ylang oil, lemongrass oil, peppermint oil, and lime oil are natural fragrances. Hexyl acetate, ethyl butyrate, isoamyl acetate, and citral are fragrances with a chain structure. By selecting at least one of these specific natural fragrances and specific fragrances with a chain structure and diffusing it in the entrance or toilet, an excellent fragrance can be imparted to the wallpaper in the entrance or toilet.

[0011] Lime oil is an essential oil obtained from the peel of the lime (Citrus aurantifolia Swingle). Spearmint oil is an essential oil obtained from the whole plant or above-ground parts of the green mint (Mentha spicata). Peppermint oil is an essential oil obtained from the whole plant or above-ground parts of the European mint (Mentha piperita). Ethyl butyrate is a chain-like carboxylic acid ester formed by the condensation of acetic acid and ethanol. Isoamyl acetate is a chain-like carboxylic acid ester formed by the condensation of acetic acid and isoamyl alcohol. Lavender oil is an essential oil obtained from the flowers or flower stalks of lavender (Lavandula officinalis L.). Lavandin oil is an essential oil obtained from the flower spikes of lavandin. Ylang-ylang oil is an essential oil obtained from the flowers of ylang-ylang (Cananga odorata). Lemongrass oil is an essential oil obtained from the leaves, whole plant, or above-ground parts of lemongrass (Cymbopogon citrarus, Cymbopogon schoenanthus). Hexyl acetate is a chain-like carboxylic acid ester formed by the condensation of acetic acid and hexyl alcohol. Citral is a chain-like monoterpene aldehyde, and includes geranial (α-citral) and neral (β-citral).

[0012] The aforementioned fragrances may be used individually or in combination of two or more.

[0013] Among these fragrances, from the viewpoint of further improving adhesion to wallpaper and the pleasantness of the fragrance emitted from the wallpaper after application, preferred are lavender oil, lavandin oil, lemongrass oil, lime oil, hexyl acetate, and citral, more preferably lavender oil, lime oil, and hexyl acetate, and even more preferably lavender oil and lime oil.

[0014] When the fragrance of the present disclosure is volatilized using a diffuser that volatilizes the fragrance through a membrane, from the perspective of preferably combining the adhesion to the wallpaper, the comfort of the fragrance emitted from the wallpaper after adhesion, and the volatility of the fragrance from the diffuser, among the above-mentioned fragrances, preferably, spearmint oil, peppermint oil, lime oil, ethyl butyrate, and isoamyl acetate are mentioned, and more preferably, lime oil is mentioned.

[0015] The fragrance of the present disclosure is used by being volatilized in the entrance hall or toilet. When the fragrance of the present disclosure is volatilized in the entrance hall or toilet, it adheres to the wallpaper of the entrance hall or toilet, imparts a good fragrance to the wallpaper, and can make the entrance hall or toilet a comfortable space. The fragrance of the present disclosure may be volatilized alone in the entrance hall or toilet, but it is preferably formulated in the fragrance composition described below and volatilized in the entrance hall or toilet.

[0016] Regarding the surface material of the wallpaper used in the entrance hall or toilet to which the fragrance of the present disclosure is applied, there is no particular limitation, and examples include any resin such as polyvinyl chloride, polyolefin, and polyester. As a preferred example of the application target of the fragrance for the entrance hall or toilet of the present disclosure, an entrance hall or toilet having wallpaper with a polyvinyl chloride layer as the outermost layer is mentioned.

[0017] 2. Fragrance composition for wallpaper in entrances or toilets. The fragrance composition of the present disclosure is a fragrance composition for imparting fragrance to the wallpaper for the entrance hall or toilet, that is, a fragrance composition used in the entrance hall or toilet and used to impart fragrance to the wallpaper of the entrance hall or toilet. Specifically, the fragrance composition of the present disclosure is characterized by containing the fragrance for imparting fragrance to the wallpaper for the entrance hall or toilet and a solvent.

[0018] In the fragrance composition of the present disclosure, the content of the fragrance is not particularly limited, but for example, 0.05% by weight or more, preferably 0.05% by weight or more and 50% by weight or less, more preferably 0.1% by weight or more and 30% by weight or less, and still more preferably 0.5% by weight or more and 15% by weight or less are mentioned.

[0019] The type of solvent contained in the fragrance composition of the present disclosure is not particularly limited. For example, water, paraffinic hydrocarbons (isoparaffin with plastic flow, normal paraffin with plastic flow), 3-methoxy-3-methyl-1-butanol, propylene glycol monomethyl ether, etc. may be mentioned. These solvents may be used alone or in combination of two or more.

[0020] In the fragrance composition of the present disclosure, the content of the solvent is not particularly limited. For example, it may be 45% by weight or more and 99.95% by weight or less, preferably 65% by weight or more and 99.9% by weight or less, more preferably 80% by weight or more and 99.5% by weight or less.

[0021] The fragrance composition for the entrance or toilet of the present disclosure may contain, if necessary, fragrances other than the fragrance for imparting fragrance to the wallpaper for the entrance or toilet.

[0022] The fragrance composition of the present disclosure may further contain other additives as long as it does not prevent the effects of the present disclosure. Examples of additives that can be formulated in the fragrance composition of the present disclosure include surfactants, preservatives, antioxidants, pH adjusters, deodorants, bactericides, ultraviolet absorbers, insecticidal components, insect repellent components, repellent components, organic foaming agents, binders, etc.

[0023] The shape of the fragrance composition of the present disclosure is not particularly limited as long as the fragrance can volatilize. For example, liquid and gel forms may be mentioned. Preferably, it is in liquid form.

[0024] The diffuser for volatilizing the fragrance composition of this disclosure is not particularly limited, but a preferred example is a diffuser that volatilizes the composition via a membrane. The diffuser comprises the fragrance composition of this disclosure, a container body having an opening, and a membrane. In the diffuser, for example, the fragrance composition of this disclosure is contained in the container body, and the opening of the container body is covered with a membrane. The membrane only needs to be permeable to at least one of gas and liquid. Membranes used in diffusers are known in the art and include, for example, gas-permeable membranes and gas and liquid-permeable membranes. A gas-permeable membrane may be any film having pores that allow gas to pass through but not liquid, and specifically, a porous film made of polyethylene (such as low-density polyethylene) may be used. A gas and liquid-permeable membrane may be any membrane that allows gas to pass through and has permeability such that liquid does not spill out, and specifically, a porous film made of polyethylene or polyolefin such as polypropylene and silica may be used. Porous films made of polyethylene or polyolefins such as polypropylene and silica have properties that make them impermeable to highly polar liquids such as water, but allow oil-based liquids to pass through easily.

[0025] A diffuser that disperses fragrance through a membrane can disperse the fragrance composition while preventing spillage. However, when using a diffuser that disperses through a membrane, it is desirable to select a fragrance that easily permeates the membrane for the fragrance composition. For example, if at least one selected from the group consisting of spearmint oil, peppermint oil, lime oil, ethyl butyrate, and isoamyl acetate is used, using a diffuser that disperses through a membrane can prevent spillage of the fragrance composition and allow for excellent fragrance distribution to the wallpaper in the entrance or toilet via the membrane. In areas with small spatial volume relative to the living space, such as entrances or toilets, it is anticipated that the diffuser may tip over if it comes into contact with the user's hand, but since the diffuser can distribute an excellent fragrance while preventing spillage of the fragrance composition, it can further improve the user's comfort.

[0026] Other examples of diffusers for volatilizing the fragrance composition of the present disclosure include diffusers that volatilize the composition via a volatilizing member such as a nonwoven fabric, wood material, or sponge. Specifically, an example of a diffuser is provided that includes a liquid container having an opening, a volatilizing member, and the fragrance composition of the present disclosure contained in the liquid container. For example, at least a portion of the volatilizing member is immersed in the fragrance composition of the present disclosure and is exposed to the air through the opening. The material of the volatilizing member is not particularly limited as long as it has the property of being able to impregnate and volatilize the fragrance composition of the present disclosure, but examples include natural fibers such as cotton, plant fibers, and pulp; synthetic fibers such as polyester; wood materials such as rattan; or foamed urethane resin sponge materials. When the volatilizing member is made of a fibrous material, it is preferably filter paper or a nonwoven fabric, but it may also be a woven fabric, knitted fabric, etc. The shape of the volatilizing member is not particularly limited and may be sheet-shaped, block-shaped, rod-shaped, strip-shaped, string-shaped, etc.

[0027] 3. How to apply fragrance to the wallpaper in the entrance or toilet. The present disclosure is a method for fragrance-applying wallpaper to an entrance or toilet, characterized by volatilizing at least one fragrance selected from the group consisting of lime oil, spearmint oil, peppermint oil, ethyl butyrate, isoamyl acetate, lavender oil, lavandin oil, ylang-ylang oil, lemongrass oil, hexyl acetate, and citral within the entrance or toilet. The fragrances used in the present disclosure are as described above. [Examples]

[0028] Examples are described below, but this disclosure is not limited to these examples.

[0029] Test Example 1 I cut the wallpaper (sticker-type wallpaper, option: pattern: SW-34 Frisch, outermost layer is polyvinyl chloride, manufactured by Asahi Paint Co., Ltd.) into 5cm x 5cm squares. I then placed the cut wallpaper inside a glass bottle (base area 28.3cm²).2 The wallpaper was attached to the inner wall of a glass bottle (11 cm high) at a height of 6 cm from the bottom, with the surface facing outwards. 20 μl of the fragrances shown in Tables 1 to 4 was impregnated into a cotton ball (approximately φ14 mm), which was placed at the bottom of the glass bottle prepared above. The glass bottle was then sealed and left to stand overnight. Next, the wallpaper was removed from the glass bottle, and the intensity of the fragrance and the degree of pleasantness / unpleasantness of the fragrance were evaluated using a 9-point pleasantness / unpleasantness scale and a 6-point odor intensity scale. The sensory evaluation was performed by 8 or 9 trained individuals, and the average score was calculated for each evaluation item. The evaluation criteria for the 9-point pleasantness / unpleasantness scale and the 6-point odor intensity scale are shown below. <9-point scale for expressing comfort / discomfort (evaluation criteria for comfort / discomfort)> +4: Extremely pleasant +3: Very pleasant +2:Kai +1: Slightly better 0: Neither pleasant nor unpleasant -1: Slightly unpleasant -2: Unpleasant -3: Very unpleasant -5: Extremely unpleasant <6-level odor intensity rating system (evaluation criteria for fragrance intensity)> 0: Odorless 1: A scent that can finally be detected (detection threshold) 2: A faint scent that can be identified (recognition threshold) 3: A scent that can be easily detected 4: Strong scent 5: Intense scent

[0030] In Tables 1 to 4, "10% DPG" refers to a fragrance solution containing a fragrance component at a concentration of 10% by weight in dipropylene glycol, "1% DPG" refers to a fragrance solution containing a fragrance component at a concentration of 1% by weight in dipropylene glycol, "50% BB" refers to a fragrance solution containing a fragrance component at a concentration of 50% by weight in benzyl benzoate, "10% BB" refers to a fragrance solution containing a fragrance component at a concentration of 10% by weight in benzyl benzoate, and "10% TEC" refers to a fragrance solution containing a fragrance component at a concentration of 10% by weight in triethyl citrate. The same applies to Table 5.

[0031] The results are shown in Tables 1 to 4. The results showed that when lavender oil, lavandin oil, spearmint oil, ylang-ylang oil, lemongrass oil, peppermint oil, lime oil, hexyl acetate, ethyl butyrate, isoamyl acetate, and citral were used, the average score on the 6-level odor intensity scale was high (4 or higher), indicating that they easily adhere to wallpaper after volatilization. Furthermore, these fragrances had an average score of 0 or higher on the 9-level pleasantness / unpleasantness scale, confirming that the fragrance emitted after adhering to the wallpaper was also pleasant. On the other hand, the fragrances in Comparative Examples 1 to 97 did not satisfy the criteria of having an average score of 4 or higher on the 6-level odor intensity scale and an average score of 0 or higher on the 9-level pleasantness / unpleasantness scale.

[0032] These results revealed that when lavender oil, lavandin oil, spearmint oil, ylang-ylang oil, lemongrass oil, peppermint oil, lime oil, hexyl acetate, ethyl butyrate, isoamyl acetate, and citral are placed in an entrance hall or toilet and allowed to volatilize, they adhere to the wallpaper in the entrance hall or toilet and can fragrance the wallpaper.

[0033] [Table 1]

[0034] [Table 2]

[0035] [Table 3]

[0036] [Table 4]

[0037] Test Example 2 Dissolve 6 ml of the fragrance shown in Table 5 in a container with an opening of 6.8 ml (opening area 17.3 cm²). 2 A volatilizer was prepared by placing it in a container and covering the opening with a membrane that allows at least one of the gas and liquid to pass through, then sealing it. Membrane A (a porous membrane made of low-density polyethylene) and Membrane B (a porous membrane formed of polyethylene and silica) were used as the membranes. The volatilizer was placed in a stainless steel sensory box (1000L), the sensory box was sealed, and left to stand for 15 minutes. After that, the intensity of the aroma inside the sensory box was sensorily evaluated using a 6-level odor intensity scale. The evaluation criteria for the 6-level odor intensity scale are as shown in Test Example 1 above. The sensory evaluation was performed by 8 or 9 trained individuals, and the average score for the aroma intensity was calculated.

[0038] The results are shown in Table 5. These results indicate that when spearmint oil, peppermint oil, lime oil, ethyl butyrate, and isoamyl acetate were used, the fragrance intensity was 4.0 or higher, and the fragrances readily volatilized through a permeable membrane.

[0039] [Table 5]

Claims

[Claim 1] A fragrance for scenting wallpaper in entrances or toilets, comprising at least one fragrance selected from the group consisting of lime oil, spearmint oil, peppermint oil, ethyl butyrate, isoamyl acetate, lavender oil, lavandin oil, ylang-ylang oil, lemongrass oil, hexyl acetate, and citral.

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