Deodorant composition

Abstract

To provide a deodorant composition allowed to eliminate, without causing an unwell feeling, not only unpleasant smell occurring upon making a mold using an organic molding material or pouring melt into the mold but also bad smell gotten stuck in clothing.SOLUTION: A deodorant composition, for unpleasant smell occurring upon making a mold using an organic molding material or pouring melt into the mold, contains the following components (A) and (B). (A) One or more selected from γ-Decalactone and jasmone. (B) One or more selected from ionone and damascenone.SELECTED DRAWING: None

Description

Technical Field

[0001] The present invention relates to a deodorant composition.

Background Art

[0002] A mold is manufactured by filling a mold frame with a mold material containing, for example, a refractory aggregate and a solidifying agent for solidifying the aggregate and then hardening it. As the mold material, there are an inorganic mold material containing an inorganic substance as a solidifying agent and an organic mold material containing an organic substance as a solidifying agent. However, while the organic mold material is useful for economically mass-producing high-quality molds, it generates an unpleasant odor when heated, so measures are required to prevent deterioration of the working environment.

[0003] Conventionally, as a measure against odors in the working environment, as a deodorant composition for organic mold materials, for example, an additive for molding sand containing coumarin, isobornyl acetate, and β-ionone (Patent Document 1), a fragrance-based deodorant containing an ester having a tricyclic hydrocarbon skeleton (Patent Document 2), a fragrance-based deodorant containing one or more selected from the group consisting of an ester having a tricyclic hydrocarbon skeleton, an α,β-unsaturated ketone, and an α,β-unsaturated aldehyde (Patent Document 3), etc. have been proposed to be added.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Patent Document 2

Patent Document 3

Summary of the Invention

Problems to be Solved by the Invention

[0005] However, although the above-described conventional deodorant composition can reduce the unpleasant odor in the working space, there is a problem that it cannot obtain a sufficient deodorizing effect on the unpleasant odor adhering to the clothing of the worker. In addition, there is also a problem that the fragrance remaining on the clothing rather makes the worker uncomfortable. An object of the present invention is to provide a deodorant composition capable of deodorizing not only the unpleasant odor generated during the molding of a mold using an organic mold material or during the pouring of molten metal into the mold, but also the unpleasant odor adhering to clothing, without causing discomfort, and a deodorizing method using the same.

Means for Solving the Problems

[0006] As a result of repeated studies in view of the above problems, the present inventors have found that by using a deodorant composition in which specific fragrance components are combined, even if the amount is small, together with the unpleasant odor released from the organic mold material by heat during the molding of the mold or during the pouring of molten metal into the mold, the fragrance components in the deodorant composition diffuse into the working space and exhibit an odor of appropriate intensity, and moreover, they can adsorb on the clothing surface and remain for a relatively long time. Therefore, it has been found that the unpleasant odor present in both the working space and the clothing can be deodorized without causing discomfort.

[0007] That is, the present invention provides the following [1] to

[12] . [1] A deodorant composition for an unpleasant odor generated during the molding of a mold using an organic mold material or during the pouring of molten metal into the mold, The deodorant composition containing the following component (A) and component (B). (A) At least one selected from γ-decalactone and jasmon (B) At least one selected from ionone and damascon [2] The deodorant composition according to [1] above, wherein the mass ratio [(A) / (B)] of component (A) to component (B) is 0.1 or more and 10,000 or less. [3] The deodorant composition according to [1] or [2] above, wherein the content of component (A) is 0.01 to 50% by mass. [4] The deodorant composition according to any one of [1] to [3] above, wherein the content of component (B) is 0.0001 to 25% by mass. 〔5〕The deodorant composition according to any one of 〔1〕 to 〔4〕 above, wherein component (A) is γ-decalactone and component (B) is ionone. 〔6〕The deodorant composition according to any one of 〔1〕 to 〔4〕 above, wherein component (A) is jasmon and component (B) is damascon. 〔7〕The deodorant composition according to any one of 〔1〕 to 〔6〕 above, further comprising, as component (C), the following compound. (C) One or more selected from linalool, linalool oxide, raspberry ketone, eugenol, geranyl acetate, geraniol, nerol, 2-phenylethyl alcohol and coumarin 〔8〕The deodorant composition according to any one of 〔1〕 to 〔7〕 above, further comprising, as component (D), one or more solvents selected from the following (d1) to (d5). (d1) A dihydric alcohol selected from dipropylene glycol and propylene glycol. (d2) A monohydric alcohol selected from ethanol, 3-methoxy-3-methyl-1-butanol, 2-(2-ethoxyethoxy)ethanol, benzyl alcohol, phenoxyethanol and dipropylene glycol monoethyl ether. (d3) An ester selected from benzyl benzoate, isopropyl myristate, diethyl phthalate and triethyl citrate. (d4) A monocyclic monoterpene selected from dipentene and limonene. (d5) Water 〔9〕The deodorant composition according to any one of 〔1〕 to 〔8〕 above, wherein the organic mold material contains an organic curing agent. 〔10〕The deodorant composition according to any one of 〔1〕 to 〔9〕 above, which is used in one or more embodiments selected from the following (I) and (II). (I) Before the organic mold material is heated, the deodorant composition is added to the organic mold material. (II) In the working space where the organic mold material is heated, the deodorant composition is sprayed at any one or more of before, during and after the heating of the organic mold material. A method for deodorizing unpleasant odors generated during the molding of a mold using an organic mold material or during the pouring of molten metal into the mold, A deodorizing method using a deodorant composition containing the following components (A) and (B). (A) One or more selected from γ-decalactone and jasmon (B) One or more selected from ionone and damascon 〔12〕 The reduction method according to 〔11〕 above, wherein the deodorant composition is used in one or more embodiments selected from the following (I) and (II). (I) Before the organic mold material is heated, the deodorant composition is added to the organic mold material. (II) In the working space where the organic mold material is heated, the deodorant composition is sprayed at any one or more of before, during, and after the heating of the organic mold material.

Effects of the Invention

[0008] According to the present invention, it is possible to provide a deodorant composition capable of deodorizing not only unpleasant odors generated during the molding of a mold using an organic mold material or during the pouring of molten metal into the mold, but also unpleasant odors adhering to clothing, without causing discomfort.

Modes for Carrying Out the Invention

[0009] 〔Deodorant Composition〕 The deodorant composition of the present invention contains components (A) and (B). The present invention is different from the conventional masking technology that conceals unpleasant odors with fragrance components that emit strong odors in that it modulates the weak fragrance of component (A) and component (B) to harmonize with the unpleasant odor and make it into a pleasant fragrance, making the unpleasant odor less noticeable. That is, together with the unpleasant odor released from the organic mold material by heat in the molding process and the pouring process, component (A) and component (B) diffuse into the working space by heat convection, and continue to float while maintaining a certain space concentration after diffusion, harmonize with the unpleasant odor, modulate it into a pleasant fragrance and make it less noticeable, so that the working space in the molding process and the pouring process can be felt comfortably, and the deodorization can be achieved without causing discomfort. In addition, since component (A) and component (B) are easily adsorbed on the surface of clothing such as work clothes in an equilibrium state when they reach the surface of the clothing, once adsorbed, they remain on the surface of the clothing for a relatively long time without desorbing immediately, and then gradually desorb from the surface of the clothing. Therefore, compared with conventional deodorant compositions, it can be perceived as a pleasant fragrance without causing discomfort.

[0010] <Component (A)> The deodorant composition of the present invention contains, as component (A), one or more selected from γ-decalactone and jasmon. From the viewpoint of excellent deodorizing effect on the working space and clothing, and from the viewpoint of excellent palatability imparted by a pleasant fragrance to the working space and clothing, jasmon is preferably cis-jasmon or a mixture of cis-jasmon and trans-jasmon. The ratio of cis-jasmon in the mixture is not particularly limited as long as it is 50% by mass or more, but from the viewpoint of excellent deodorizing effect on the working space and clothing, the mass ratio (cis:trans) of cis-jasmon to trans-jasmon is preferably 50:50 to 99.99:0.01, more preferably 60:40 to 95:5, and still more preferably 70:30 to 90:10.

[0011] From the viewpoint of exhibiting an excellent deodorizing effect on a working space and clothing, the content of component (A) in the deodorant composition of the present invention is preferably 0.01% by mass or more, more preferably 0.05% by mass or more, still more preferably 0.1% by mass or more, and even more preferably 0.2% by mass or more. Also, from the viewpoints of exhibiting an excellent deodorizing effect on a working space and clothing and imparting excellent palatability by a pleasant fragrance to the working space and clothing, it is preferably 50% by mass or less, more preferably 35% by mass or less, still more preferably 25% by mass or less, even more preferably 15% by mass or less, particularly preferably 10% by mass or less, and even more particularly preferably 5% by mass or less. That is, the content of such component (A) in the deodorant composition of the present invention is preferably 0.01% by mass or more and 50% by mass or less, more preferably 0.05% by mass or more and 35% by mass or less, still more preferably 0.1% by mass or more and 25% by mass or less, even more preferably 0.2% by mass or more and 15% by mass or less, particularly preferably 0.2% by mass or more and 10% by mass or less, and even more particularly preferably 0.2% by mass or more and 5% by mass or less. When two types of component (A) are contained, the content of component (A) is the total content. In addition, the content of component (A) can be measured by an analytical method suitable for the situation of the measurement sample among commonly known measurement methods. For example, it can be measured by gas chromatography (hereinafter, also referred to as "GC / MS method"). Specifically, the following method can be mentioned. In addition, at the time of measurement, in order to conform to the detection range of the apparatus, the sample may be appropriately treated as necessary, such as extracting and diluting the sample with a solvent or removing impurities in the sample to conform to the separation ability of the apparatus.

[0012] <Component (B)> The deodorant composition of the present invention contains, as component (B), one or more selected from ionone and damascon. Ionone may be any of α-ionone, β-ionone, γ-ionone, and δ-ionone, but β-ionone is preferred in terms of achieving a higher level of the effects of the present invention. Also, damascon may be any of α-damascon, β-damascon, and γ-damascon, but β-damascon is preferred in terms of achieving a higher level of the effects of the present invention.

[0013] From the viewpoint of exhibiting an excellent deodorizing effect on the working space and clothing, the content of component (B) in the deodorant composition of the present invention is preferably 0.0001% by mass or more, more preferably 0.001% by mass or more, still more preferably 0.05% by mass or more. Also, from the viewpoints of exhibiting an excellent deodorizing effect on the working space and clothing and imparting excellent palatability by a pleasant fragrance to the working space and clothing, it is preferably 25% by mass or less, more preferably 10% by mass or less, still more preferably 8% by mass or less, even more preferably 5% by mass or less, and particularly preferably 2% by mass or less. That is, the content of such component (B) is preferably 0.0001% by mass or more and 25% by mass or less, more preferably 0.001% by mass or more and 10% by mass or less, still more preferably 0.05% by mass or more and 8% by mass or less, even more preferably 0.05% by mass or more and 5% by mass or less, and particularly preferably 0.05% by mass or more and 2% by mass or less in the deodorant composition of the present invention. When two types of component (B) are contained, the content of component (B) is the total content. Also, the content of component (B) can be measured by an analytical method suitable for the situation of the measurement sample among commonly known measurement methods. For example, it can be measured by the GC / MS method. Specifically, the method described below can be mentioned. In addition, when measuring, in order to conform to the detection range of the apparatus, the sample may be appropriately treated as necessary, such as extracting and diluting the sample with a solvent or removing impurities in the sample to conform to the separation ability of the apparatus.

[0014] The mass ratio [(A) / (B)] of component (A) to component (B) is preferably 0.1 or more, more preferably 0.5 or more, still more preferably 1 or more, even more preferably 1.5 or more, from the viewpoint of imparting excellent palatability with a pleasant fragrance to the working space and clothing. Also, from the viewpoint of exhibiting an excellent deodorizing effect on the working space and clothing, it is preferably 10,000 or less, more preferably 1,000 or less, still more preferably 400 or less, even more preferably 100 or less, and even more preferably 50 or less, and particularly preferably 20 or less. That is, such a mass ratio [(A) / (B)] is preferably 0.1 or more and 10,000 or less, more preferably 0.5 or more and 1,000 or less, still more preferably 1 or more and 400 or less, even more preferably 1 or more and 100 or less, even more preferably 1.5 or more and 50 or less, and particularly preferably 1.5 or more and 20 or less.

[0015] In addition, the total content [(A)+(B)] of component (A) and component (B) in the deodorant composition of the present invention is preferably 0.01% by mass or more, more preferably 0.08% by mass or more, still more preferably 0.12% by mass or more, and even more preferably 0.25% by mass or more, from the viewpoint of exhibiting an excellent deodorizing effect on the working space and clothing. Also, from the viewpoints of exhibiting an excellent deodorizing effect on the working space and clothing and imparting excellent palatability with a pleasant fragrance to the working space and clothing, it is preferably 65% by mass or less, more preferably 50% by mass or less, still more preferably 35% by mass or less, even more preferably 15% by mass or less, and even more preferably 8% by mass or less, and particularly preferably 5% by mass or less. That is, such a total content [(A)+(B)] is preferably 0.01% by mass or more and 65% by mass or less, more preferably 0.08% by mass or more and 50% by mass or less, still more preferably 0.12% by mass or more and 35% by mass or less, even more preferably 0.12% by mass or more and 15% by mass or less, even more preferably 0.25% by mass or more and 8% by mass or less, and particularly preferably 0.25% by mass or more and 5% by mass or less in the deodorant composition of the present invention.

[0016] A preferred combination of component (A) and component (B) is a combination of γ-decalactone and ionone or a combination of jasmon and damascenone, which allows the effects of the present invention to be enjoyed at a higher level. More preferably, it is a combination of γ-decalactone and β-ionone or a combination of cis-jasmon and β-damascenone. Note that cis-jasmon may be a mixture of cis-jasmon and trans-jasmon, and the mixing ratio is as described above.

[0017] In the present invention, when component (A) and component (B) are in a preferred combination, the respective contents and mass ratio [(A) / (B)] of component (A) and component (B) in the deodorant composition can be in the ranges shown below. Thereby, a more excellent deodorizing effect on the working space and clothing can be exhibited, and a more excellent palatability due to a pleasant fragrance for the working space and clothing can be imparted. can be achieved.

[0018] (1) Combination of γ-decalactone and ionone The content of γ-decalactone in the deodorant composition of the present invention is preferably 0.1% by mass or more, more preferably 0.5% by mass or more, still more preferably 1% by mass or more, and even more preferably 2% by mass or more, from the viewpoint of exhibiting a more excellent deodorizing effect on the working space and clothing. Also, from the viewpoints of exhibiting a more excellent deodorizing effect on the working space and clothing and imparting a more excellent palatability due to a pleasant fragrance for the working space and clothing, it is preferably 50% by mass or less, more preferably 35% by mass or less, still more preferably 15% by mass or less, even more preferably 10% by mass or less, and particularly preferably 5% by mass or less. That is, the content of such γ-decalactone is preferably 0.1% by mass or more and 50% by mass or less, more preferably 0.5% by mass or more and 35% by mass or less, still more preferably 1% by mass or more and 15% by mass or less, even more preferably 2% by mass or more and 10% by mass or less, and particularly preferably 2% by mass or more and 5% by mass or less, in the deodorant composition of the present invention.

[0019] From the viewpoint of achieving an even more excellent deodorizing effect on the working space and clothing, the content of ionone in the deodorant composition of the present invention is preferably 0.003% by mass or more, more preferably 0.01% by mass or more, still more preferably 0.3% by mass or more, and even more preferably 0.7% by mass or more. Also, from the viewpoint of achieving an even more excellent deodorizing effect on the working space and clothing, and from the viewpoint of imparting even more excellent palatability by a pleasant fragrance to the working space and clothing, it is preferably 20% by mass or less, more preferably 10% by mass or less, still more preferably 5% by mass or less, and even more preferably 2% by mass or less. That is, the content of such ionone in the deodorant composition of the present invention is preferably 0.003% by mass or more and 20% by mass or less, more preferably 0.01% by mass or more and 10% by mass or less, still more preferably 0.3% by mass or more and 5% by mass or less, and even more preferably 0.7% by mass or more and 2% by mass or less.

[0020] (A) The mass ratio [(A) / (B)] of γ-decalactone to (B) ionone is preferably 0.5 or more, more preferably 1 or more, still more preferably 1.5 or more, from the viewpoint of imparting even more excellent palatability by a pleasant fragrance to the working space and clothing. Also, from the viewpoint of achieving an even more excellent deodorizing effect on the working space and clothing, it is preferably 10000 or less, more preferably 2000 or less, still more preferably 100 or less, even more preferably 50 or less, particularly more preferably 15 or less, and even more particularly preferably 10 or less. That is, such mass ratio [(A) / (B)] is preferably 0.5 or more and 10000 or less, more preferably 1 or more and 2000 or less, still more preferably 1.5 to 100 or less, even more preferably 1.5 or more and 50 or less, particularly more preferably 1.5 or more and 15 or less, and even more particularly preferably 1.5 or more and 10 or less.

[0021] (2) Combination of jasmon and damascon From the perspective of achieving an even better deodorizing effect on the working space and clothing, the content of jasmon in the deodorant composition of the present invention is preferably 0.01% by mass or more, more preferably 0.1% by mass or more, still more preferably 0.2% by mass or more, and even more preferably 0.25% by mass or more. Also, from the perspective of achieving an even better deodorizing effect on the working space and clothing, and from the perspective of imparting even better palatability with a pleasant fragrance to the working space and clothing, it is preferably 50% by mass or less, more preferably 35% by mass or less, still more preferably 15% by mass or less, even more preferably 10% by mass or less, particularly preferably 5% by mass or less, and even more particularly preferably 2% by mass or less. That is, the content of such jasmon in the deodorant composition of the present invention is preferably 0.01% by mass or more and 50% by mass or less, more preferably 0.1% by mass or more and 35% by mass or less, still more preferably 0.1% by mass or more and 15% by mass or less, even more preferably 0.2% by mass or more and 10% by mass or less, particularly preferably 0.25% by mass or more and 5% by mass or less, and even more particularly preferably 0.25% by mass or more and 2% by mass or less.

[0022] From the perspective of achieving an even better deodorizing effect on the working space and clothing, the content of damascon in the deodorant composition of the present invention is preferably 0.0001% by mass or more, more preferably 0.003% by mass or more, still more preferably 0.005% by mass or more, even more preferably 0.01% by mass or more, particularly preferably 0.015% by mass or more. From the perspective of achieving an even better deodorizing effect on the working space and clothing and imparting a more pleasant fragrance for better palatability to the working space and clothing, it is preferably 20% by mass or less, more preferably 10% by mass or less, still more preferably 5% by mass or less, even more preferably 2% by mass or less, particularly preferably 1% by mass or less, and even more particularly preferably 0.5% by mass or less. That is, the content of such damascon in the deodorant composition of the present invention is preferably 0.0001% by mass or more and 20% by mass or less, more preferably 0.003% by mass or more and 10% by mass or less, still more preferably 0.005% by mass or more and 5% by mass or less, even more preferably 0.01% by mass or more and 2% by mass or less, particularly preferably 0.015% by mass or more and 1% by mass or less, and even more particularly preferably 0.015% by mass or more and 0.5% by mass or less.

[0023] (A) The mass ratio [(A) / (B)] of jasmon to (B) damascon is preferably 0.5 or more, more preferably 1 or more, still more preferably 1.5 or more, even more preferably 5 or more, particularly preferably 10 or more, from the perspective of imparting a more pleasant fragrance for better palatability to the working space and clothing. From the perspective of achieving an even better deodorizing effect on the working space and clothing, it is preferably 10,000 or less, more preferably 2,000 or less, still more preferably 100 or less, still more preferably 50 or less, particularly preferably 20 or less. That is, the mass ratio [(A) / (B)] is preferably 0.5 or more and 10,000 or less, more preferably 1 or more and 2,000 or less, still more preferably 1.5 or more and 100 or less, still more preferably 1.5 or more and 50 or less, even more preferably 5 or more and 20 or less, particularly preferably 10 or more and 20 or less.

[0024] <Component (C)> The deodorant composition of the present invention can further contain one or more selected from linalool, linalool oxide, raspberry ketone, eugenol, geranyl acetate, geraniol, nerol, 2-phenylethyl alcohol, and coumarin as component (C). Thereby, a more excellent deodorizing effect on the working space and clothing can be exhibited, and a more excellent palatability due to a pleasant scent on the working space and clothing can be imparted. Among them, as component (C), it is preferable to contain one or more selected from linalool, linalool oxide, raspberry ketone, eugenol, geranyl acetate, and 2-phenylethyl alcohol in that the effects of the present invention can be enjoyed at a higher level, and it is more preferable to contain one or more selected from linalool, linalool oxide, raspberry ketone, eugenol, and geranyl acetate, and it is still more preferable to contain at least one selected from linalool and linalool oxide.

[0025] From the viewpoints of the deodorizing effect on the working space and clothing and the imparting of excellent palatability by a pleasant fragrance to the working space and clothing, the content of component (C) in the deodorant composition of the present invention is preferably 0.01% by mass or more, more preferably 0.05% by mass or more, still more preferably 0.1% by mass or more, still more preferably 0.2% by mass or more, even more preferably 0.4% by mass or more, particularly preferably 0.6% by mass or more. Also, from the viewpoint of the palatability of the fragrance, it is preferably 10% by mass or less, more preferably 5% by mass or less, still more preferably 3% by mass or less, even more preferably 2% by mass or less. That is, the content of such component (C) in the deodorant composition of the present invention is preferably 0.01% by mass or more and 10% by mass or less, more preferably 0.05% by mass or more and 5% by mass or less, still more preferably 0.1% by mass or more and 5% by mass or less, still more preferably 0.2% by mass or more and 3% by mass or less, even more preferably 0.4% by mass or more and 3% by mass or less, particularly preferably 0.6% by mass or more and 2% by mass or less. When two or more kinds of component (C) are contained, the content of component (C) is the total content. Further, the content of component (C) can be measured by an analytical method suitable for the situation of the measurement sample among the generally known measurement methods. For example, it can be measured by the GC / MS method. Specifically, the method described later can be mentioned. In addition, at the time of measurement, appropriate treatment may be carried out as necessary, such as extracting and diluting the sample with a solvent to conform to the detection range of the apparatus or removing impurities in the sample to conform to the separation ability of the apparatus.

[0026] The mass ratio [(C) / (A)] of component (A) and component (C) is preferably 0.01 or more, more preferably 0.05 or more, still more preferably 0.1 or more, even more preferably 0.2 or more, particularly preferably 0.5 or more, from the viewpoint of imparting excellent palatability by a pleasant fragrance to the working space and clothing. Also, from the viewpoint of exhibiting an excellent deodorizing effect on the working space and clothing, it is preferably 20 or less, more preferably 15 or less, still more preferably 10 or less, even more preferably 5 or less, particularly preferably 3 or less. That is, such a mass ratio [(C) / (A)] is preferably 0.01 or more and 20 or less, more preferably 0.05 or more and 15 or less, still more preferably 0.1 or more and 10 or less, even more preferably 0.2 or more and 5 or less, particularly preferably 0.5 or more and 3 or less.

[0027] The mass ratio [(C) / (B)] of component (B) and component (C) is preferably 0.01 or more, more preferably 0.1 or more, still more preferably 0.5 or more, even more preferably 1 or more, from the viewpoint of imparting excellent palatability by a pleasant fragrance to the working space and clothing. Also, from the viewpoint of exhibiting an excellent deodorizing effect on the working space and clothing, it is preferably 80 or less, more preferably 60 or less, still more preferably 50 or less, even more preferably 45 or less. That is, such a mass ratio [(C) / (B)] is preferably 0.01 or more and 80 or less, more preferably 0.1 or more and 60 or less, still more preferably 0.5 or more and 50 or less, even more preferably 1 or more and 45 or less.

[0028] <Component (D)> The deodorant composition of the present invention can further contain, as component (D), one or more solvents selected from the following (d1) to (d5). Thereby, the compatibility between component (A) and component (B) is improved, and an excellent deodorizing effect on the working space and clothing can be exhibited. (d1) A dihydric alcohol selected from dipropylene glycol and propylene glycol (d2) A monohydric alcohol selected from ethanol, 3-methoxy-3-methyl-1-butanol, 2-(2-ethoxyethoxy)ethanol, benzyl alcohol, phenoxyethanol and dipropylene glycol monoethyl ether (d3) An ester selected from benzyl benzoate, isopropyl myristate, diethyl phthalate and triethyl citrate (d4) A monocyclic monoterpene selected from dipentene and limonene (d5) Water

[0029] Among them, as the component (D), in terms of being able to enjoy the effects of the present invention at a higher level, it is preferably contained one or more solvents selected from (d1) to (d4), more preferably contained one or more solvents selected from (d1), (d2) and (d4), still more preferably contained one or more solvents selected from dipropylene glycol, propylene glycol, isopropyl myristate and limonene, even more preferably contained one or two solvents selected from dipropylene glycol and propylene glycol, and particularly preferably contained dipropylene glycol.

[0030] The content of the component (D) in the deodorant composition of the present invention is the remainder excluding the components (A) and (B), and the components (C) and other components that are blended as necessary. For example, from the viewpoint of the deodorizing effect on the working space and clothing, and from the viewpoint of imparting excellent palatability by a pleasant fragrance to the working space and clothing, the content of component (D) in the deodorant composition of the present invention is preferably 45% by mass or more, more preferably 55% by mass or more, still more preferably 65% by mass or more, yet more preferably 70% by mass or more, and preferably 99.9% by mass or less, more preferably 99% by mass or less, still more preferably 97% by mass or less, yet more preferably 95% by mass or less. That is, the content of such component (D) in the deodorant composition of the present invention is preferably 45% by mass or more and 99.9% by mass or less, more preferably 55% by mass or more and 99% by mass or less, still more preferably 65% by mass or more and 97% by mass or less, yet more preferably 70% by mass or more and 95% by mass or less. When two or more kinds of component (D) are contained, the content of component (D) is the total content.

[0031] <Other components> From the viewpoint of enhancing the deodorizing effect on the working space and clothing and from the viewpoint of imparting palatability by a pleasant fragrance, the deodorant composition of the present invention can further contain one or more selected from the following fragrance groups as other components.

[0032] (Fragrance group) Benzyl salicylate, cis-3-hexenyl salicylate, citronellol, α,α-dimethylphenethyl acetate (dimethylbenzylvinyl acetate), dihydromyrcenol, o-tert-butylcyclohexyl acetate, ethyl linalool, tetrahydrolinalool, 1,3,4,6,7,8-hexahydro-4,6,6,7,8,8-hexamethylcyclopenta(g)-2-benzopyran (pearldide), (12E)-1-oxacyclohexadec-12-en-2-one [habanolide (registered trademark)], ethylene brassylate, 1-(2,3,8,8-tetramethyl-1,3,4,5,6,7-hexahydronaphthalen-2-yl)ethanone [iso-E-super (registered trademark)], 2-phenylethyl acetate, 1-(3,5,5,6,8,8-hexamethyl-6,7-dihydronaphthalen-2-yl)ethanone [tonalid (registered trademark)], limonene.

[0033] <Analysis method of components (A) to (C) by GC / MS method> The analysis of components (A) to (C) contained in the deodorant composition of the present invention is performed by GC / MS method using the following analytical apparatus. Specifically, a standard solution with a known concentration is prepared using a standard product, and subjected to GC / MS analysis under the following analysis conditions. A calibration curve is created from the peak area of the detected fragment ions (m / z) of the standard solution and the prepared concentration. Next, the deodorant composition is subjected to GC / MS analysis under the following analysis conditions, and the peak areas of the obtained detected fragment ions (m / z) are applied to the calibration curve to quantify components (A) to (C). In addition, the detected fragment ions (m / z) shown in Table 1 are used for the quantification of components (A) to (C).

[0034] (Analytical apparatus) · Gas chromatograph (GC): Agilent 6890N (manufactured by Agilent) · Mass selective detector (MS): Agilent 5975 MSD (manufactured by Agilent)

[0035] (GC analysis conditions) · Split ratio: 1:6 · Carrier gas: Helium Constant flow mode: 1 mL / min · Injection temperature: 280 °C

[0036] · Analytical column: DB-1 (manufactured by Agilent) Length 60 m, inner diameter 250 μm, film thickness 0.25 μm · Column oven temperature program: 70 °C → 10 °C / min → 300 °C · Sample injection volume: 1 μL of a solution diluted to 1 - 10 v / v% with hexane

[0037] (MS detection conditions) · Solvent delay: 4 minutes · GC-MS transfer line temperature: 300 °C · Mass spectrometer source temperature: 230 °C · Quadrupole mass analyzer temperature: 150 °C · Data acquisition: SIM mode

[0038]

Table 1

[0039] <Materials for organic molds> In this specification, "organic mold" refers to a mold formed by solidifying refractory aggregates with an organic substance. Also, "materials for organic molds" is a general term for the materials used to form an organic mold. An organic mold is formed, for example, by filling a casting frame with materials for organic molds and thermosetting. The molding method is not particularly limited as long as it is applicable to organic molds, and examples include self-curing types (acid-curing type, ester-curing type, etc.), thermosetting types, and gas-curing types. The organic mold material contains at least a refractory aggregate and an organic curing agent. When molding only with refractory aggregates, it is prone to collapse. Therefore, an organic curing agent is used to coat the surface of the refractory aggregates to lose fluidity and solidify. Note that the refractory aggregate and the organic curing agent can each be used alone or in combination of two or more. Here, in this specification, the "organic curing agent" is a general term for organic substances used for the purpose of solidifying refractory aggregates such as curable resins, monomers or oligomers capable of forming curable resins, curing agents, and curing accelerators. For example, it includes at least monomers or oligomers capable of forming curable resins. Note that the curing agent and the curing accelerator are appropriately selected according to the type of curable resin and the molding method, and it is not necessarily required to contain them.

[0040] The refractory aggregate ultimately becomes the base material of the mold. Examples of the refractory aggregate include, in addition to silica sand which is generally widely used, special sands such as alumina sand, olivine sand, zircon sand, chromite sand, slag-based particles such as ferromanganese slag, ferronickel slag, converter slag, alumina-based particles, and mullite-based particles. Also, recycled particles obtained by recovering and recycling these after casting can be used. From the viewpoints of improving mold strength and economy, the average particle diameter of the refractory particles is preferably 50 μm or more, more preferably 100 μm or more, still more preferably 150 μm or more, and preferably 1000 μm or less, more preferably 800 μm or less, still more preferably 600 μm or less. That is, such an average particle diameter is preferably 50 μm or more and 1000 μm or less, more preferably 100 μm or more and 800 μm or less, still more preferably 150 μm or more and 600 μm or less. Examples of the organic curing agent include curable resins, curing agents, and curing accelerators.

[0041] Conventionally known curable resins can be used. For example, phenolic resins, furan resins, urethane resins, amine polyol resins, unsaturated polyester resins, diallyl phthalate resins, and polyether polyol resins can be mentioned. Among them, phenolic resins and furan resins are preferred in terms of being able to enjoy the effects of the present invention at a higher level, and phenolic resins are even more preferred. Note that the curable resin does not necessarily need to be in the form of a polymer, and it may be in the form of a monomer or oligomer that can be cured to form a polymer. That is, in this specification, "curable resin" is a concept that includes not only polymers but also monomers or oligomers that can be cured to form polymers. For example, since phenolic resins are obtained by the condensation reaction of phenols and aldehydes, phenols and aldehydes in the form of monomers or oligomers can be used. Examples of phenols include phenol; alkylphenols such as cresol, xylenol, p-tert-butylphenol, and nonylphenol; polyhydric phenols such as resorcinol, bisphenol F, and bisphenol A; naphthol, or oligomers thereof. Examples of aldehydes include formalin, paraformaldehyde, trioxane, acetaldehyde, paraldehyde, propionaldehyde, or oligomers thereof. A catalyst may be used for the condensation reaction. For example, acidic catalysts and basic catalysts can be mentioned. The catalyst can be a conventionally known one and is not particularly limited. Note that the ratio of phenols to aldehydes can be set as appropriate, but as the molar ratio of monomers (aldehydes / phenols), for example, it is 0.55 or more and 0.80 or less.

[0042] The content of the curable resin is preferably 0.1 part by mass or more, more preferably 0.2 part by mass or more, still more preferably 0.3 part by mass or more, from the viewpoint of improving the mold strength, with respect to 100 parts by mass of the refractory aggregate. Also, from the viewpoints of exhibiting an excellent deodorizing effect on the working space and clothing, and imparting excellent palatability by a pleasant fragrance to the working space and clothing, it is preferably 5 parts by mass or less, more preferably 3 parts by mass or less, still more preferably 1 part by mass or less. That is, the content of such a curable resin is preferably 0.1 part by mass or more and 5 parts by mass or less, more preferably 0.2 part by mass or more and 3 parts by mass or less, still more preferably 0.3 part by mass or more and 1 part by mass or less, with respect to 100 parts by mass of the refractory aggregate.

[0043] The curing agent can be appropriately selected according to the type of the curable resin. For example, when the curable resin is a phenol resin, an ester compound is preferable from the viewpoint of improving the mold strength. Examples of the ester compound include lactones, organic ester compounds which are reaction products of monohydric alcohols or polyhydric alcohols having 1 to 10 carbon atoms and organic carboxylic acids having 1 to 10 carbon atoms, carbonic esters, or mixtures thereof. Examples of the lactones include γ-butyrolactone, propiolactone, and ε-caprolactone. Examples of the organic ester compounds include ethyl formate, ethylene glycol diacetate, ethylene glycol monoacetate, triethylene glycol diacetate, triethylene glycol monoacetate, ethyl acetoacetate, dimethyl succinate, dimethyl glutarate, dimethyl adipate, triacetin, dimethyl 2-ethylsuccinate, dimethyl 2-methylglutarate, and dimethyl 2-methyladipate. Examples of the carbonic esters include ethylene carbonate and propylene carbonate.

[0044] The content of the hardener can be appropriately set according to the types of the hardener and the curable resin. For example, when the curable resin is a phenolic resin, from the viewpoints of improving the mold strength and the curing rate, it is preferably 10 parts by mass or more, more preferably 15 parts by mass or more, still more preferably 20 parts by mass or more, and even more preferably 25 parts by mass or more with respect to 100 parts by mass of the curable resin. Also, from the viewpoints of exhibiting an excellent deodorizing effect on the working space and clothing and imparting excellent palatability with a pleasant fragrance to the working space and clothing, it is preferably 70 parts by mass or less, more preferably 60 parts by mass or less, still more preferably 50 parts by mass or less, and even more preferably 45 parts by mass or less. That is, the content of such a hardener is preferably 10 parts by mass or more and 70 parts by mass or less, more preferably 15 parts by mass or more and 60 parts by mass or less, still more preferably 20 parts by mass or more and 50 parts by mass or less, and even more preferably 25 parts by mass or more and 45 parts by mass or less with respect to 100 parts by mass of the curable resin.

[0045] As the curing accelerator, it can be appropriately selected according to the types of the hardener and the curable resin. For example, resorcinol, formalin, and furfural can be mentioned. The content of the curing accelerator is preferably 1 part by mass or more and 20 parts by mass or less, and more preferably 2 parts by mass or more and 15 parts by mass or less with respect to 100 parts by mass of the curable resin from the viewpoint of accelerating the curing rate.

[0046] As other components, various components usually used in the production of molds can be contained as long as they do not inhibit the object of the present invention. For example, additives such as silane coupling agents, thickeners, lubricants, mold release agents, and disintegrants can be mentioned. Examples of the silane coupling agent include N-β-(aminoethyl)γ-aminopropylmethyldimethoxysilane, γ-aminopropyltriethoxysilane, γ-(2-aminoethyl)aminopropyltrimethoxysilane, and γ-glycidoxypropyltrimethoxysilane. Examples of the thickener include cellulose derivatives such as hydroxyalkyl cellulose, polyvinyl alcohol, and sodium alginate. Examples of the lubricant include stearic acid, stearyl alcohol, lead stearate, zinc stearate, calcium stearate, magnesium stearate, monoglyceryl stearate, stearyl stearate, and fatty acid amide. Examples of the mold release agent include paraffin, wax, light oil, machine oil, spindle oil, insulating oil, waste oil, vegetable oil, fatty acid ester, organic acid, graphite fine particles, mica, vermiculite, fluorine-based mold release agent, and silicone-based mold release agent. Examples of the disintegrant include nitrate. The content of each additive can be appropriately set within a range that does not impair the object of the present invention.

[0047] 〔Odor elimination method〕 The method for eliminating unpleasant odor generated during the molding of a mold using the organic mold material of the present invention or during the pouring of molten metal into the mold (hereinafter, also simply referred to as "method for eliminating unpleasant odor") uses a deodorant composition containing the following components (A) and (B). (A) One or more selected from γ-decalactone and jasmon (B) One or more selected from ionone and damascon

[0048] That is, the method for eliminating unpleasant odor of the present invention is characterized by using the deodorant composition of the present invention, and eliminates the unpleasant odor generated due to the organic material blended in the organic mold material. The source of the unpleasant odor is, for example, an organic curing agent or a solvent, and particularly an organic curing agent such as a curable resin, a monomer or oligomer capable of forming a curable resin, or a curing agent. Then, when molding the organic mold material or pouring molten metal into the mold, the unpleasant odor generated in the working space due to the application of heat to the organic curing agent is eliminated by the deodorant composition of the present invention. As usage modes of the deodorant composition of the present invention, from the viewpoint of fully exhibiting the deodorizing effect by the deodorant composition, for example, one or more selected from the following (I) and (II) can be mentioned. (I) Add the deodorant composition to the organic mold material before the organic mold material is heated. (II) Spray the deodorant composition in the working space where the organic mold material is heated, in any one or more of before, during, and after the heating of the organic mold material.

[0049] The mode of (I) The deodorant composition of the present invention only needs to be present in the organic mold material when the organic mold material is heated, and the timing of adding the deodorant composition is not particularly limited. For example, it can be added during the preparation of the organic mold material, that is, when kneading the refractory aggregate and the organic curing agent. In addition, the addition order of the refractory aggregate, the organic mold material, and the deodorant composition is not particularly limited and can be performed in any order. The specific configurations of the organic mold material and the deodorant composition are as described above.

[0050] The deodorant composition may be added so that a certain amount of the active ingredient of the deodorant composition is contained with respect to the organic resin or curing agent in the organic mold material. Hereinafter, an example of the addition amount of the deodorant composition will be described based on the case where the content of the curing agent in the organic mold material is used as an index. The addition amount of the deodorant composition is, for example, from the viewpoint of not inhibiting the curability of the curable resin, the mass ratio [hardening agent / {(A) + (B)}] between the hardening agent in the organic mold material and the total content of component (A) and component (B) in the deodorant composition is preferably 500 or more, more preferably 2,000 or more, still more preferably 5,000 or more, still more preferably 10,000 or more, even more preferably 50,000 or more, particularly preferably 100,000 or more. Also, from the viewpoints of exhibiting an excellent deodorizing effect on the working space and clothing, and imparting excellent palatability with a pleasant fragrance to the working space and clothing, it is preferably 10,000,000 or less, more preferably 5,000,000 or less, still more preferably 3,000,000 or less, even more preferably 2,000,000 or less. That is, such a mass ratio [hardening agent / {(A) + (B)}] is preferably 500 or more and 10,000,000 or less, more preferably 2,000 or more and 5,000,000 or less, still more preferably 5,000 or more and 5,000,000 or less, still more preferably 10,000 or more and 3,000,000 or less, even more preferably 50,000 or more and 3,000,000 or less, particularly preferably 100,000 or more and 2,000,000 or less.

[0051] Also, the addition amount of the deodorant composition is, for example, such that the mass ratio [hardening agent / (A)] between the hardening agent in the organic mold material and the component (A) in the deodorant composition is preferably 1000 or more, more preferably 10000 or more, still more preferably 50000 or more, even more preferably 100000 or more, and even more preferably 150000 or more, from the viewpoint of exhibiting an excellent deodorant effect on the working space and clothing without inhibiting the curability of the curable resin. Also, from the viewpoint of exhibiting an excellent deodorant effect on the working space and clothing and imparting excellent palatability by a pleasant fragrance to the working space and clothing, it can be preferably 7000000 or less, more preferably 3000000 or less, and still more preferably 2500000 or less. That is, such a mass ratio [hardening agent / (A)] is preferably 1000 or more and 7000000 or less, more preferably 10000 or more and 7000000 or less, still more preferably 50000 or more and 3000000 or less, even more preferably 100000 or more and 3000000 or less, and even more preferably 150000 or more and 2500000 or less.

[0052] Furthermore, the addition amount of the deodorant composition is, for example, such that the mass ratio of the curing agent in the organic mold material to the component (B) in the deodorant composition [curing agent / (B)] is preferably 3000 or more, more preferably 10000 or more, still more preferably 50000 or more, even more preferably 100000 or more, and even more preferably 200000 or more, from the viewpoint of exhibiting an excellent deodorizing effect on the working space and clothing without inhibiting the curability of the curable resin. Also, from the viewpoints of exhibiting an excellent deodorizing effect on the working space and clothing and imparting excellent palatability by a pleasant fragrance to the working space and clothing, it can be preferably 1000000000 or less, more preferably 50000000 or less, and still more preferably 3500000 or less. That is, such a mass ratio [curing agent / (B)] is preferably 3000 or more and 1000000000 or less, more preferably 10000 or more and 50000000 or less, still more preferably 50000 or more and 50000000 or less, even more preferably 100000 or more and 3500000 or less, and even more preferably 200000 or more and 3500000 or less.

[0053] The heating temperature is not uniform depending on the type of process (molding, casting) and the types of the organic curing agent and the material to be cast into the mold, and can be appropriately set. For example, from the viewpoints of exhibiting an excellent deodorizing effect on the working space and clothing and imparting excellent palatability by a pleasant fragrance to the working space and clothing, the heating temperature during molding is preferably 200°C or more, more preferably 220°C or more, still more preferably 240°C or more, and even more preferably 260°C or more, and preferably 600°C or less, more preferably 580°C or less, still more preferably 560°C or less, and even more preferably 540°C or less. That is, the heating temperature is preferably 200°C or more and 600°C or less, more preferably 220°C or more and 580°C or less, still more preferably 240°C or more and 560°C or less, and even more preferably 260°C or more and 540°C or less.

[0054] The heating time is not uniform and can be set as appropriate depending on the type of process (molding, pouring) and the types of the organic curing agent and the material poured into the mold. For example, from the viewpoints of exhibiting an excellent deodorizing effect on the working space and clothing and imparting excellent palatability by a pleasant fragrance to the working space and clothing, the heating time during molding is preferably 1 minute or more, more preferably 2 minutes or more, still more preferably 3 minutes or more, even more preferably 4 minutes or more, and preferably 20 minutes or less, more preferably 15 minutes or less, still more preferably 10 minutes or less. That is, the heating time is preferably 1 minute or more and 20 minutes or less, more preferably 2 minutes or more and 20 minutes or less, still more preferably 3 minutes or more and 15 minutes or less, and even more preferably 4 minutes or more and 10 minutes or less.

[0055] (II) aspect The deodorant composition of the present invention only needs to be present in the working space where the material for the organic mold is heated. For example, the deodorant composition of the present invention is sprayed at any one or more of before, during, and after heating of the material for the organic mold. Note that the timing of spraying the deodorant composition of the present invention can be appropriately selected according to the type of the material for the organic mold and the like.

[0056] When spraying the deodorant composition of the present invention, the deodorant composition of the present invention may be used as it is, or may be diluted and used with a component containing one or more solvents selected from the solvents (d1) to (d5). Among them, as the solvent, it is preferable to contain (d5), and it is also possible to use a combination of (d5) and one or more selected from (d1) and (d2). When the deodorant composition of the present invention is diluted and used, the concentration of the deodorant composition in the diluted solution can be set as appropriate, but from the viewpoint of easily enjoying the effects of the present invention, 0.01 to 10% by mass is preferable, and 0.1 to 5% by mass is more preferable.

[0057] In addition, a surfactant may be added to the deodorant composition of the present invention. The surfactant is not particularly limited, and for example, a nonionic surfactant, an anionic surfactant, a cationic surfactant, or a betaine-type amphoteric surfactant can be appropriately selected and used. Among them, nonionic surfactants, anionic surfactants, and cationic surfactants are preferred. The addition amount of the surfactant can be appropriately set within a range that does not impair the object of the present invention.

[0058] The deodorant composition of the present invention may be sprayed in any form, such as a spray type, an aerosol type, a stationary spray device, an attachment type spray device for an inlet, a wall surface, etc., and is not particularly limited as long as the deodorant composition can be sprayed onto the work space to be deodorized. Also, a business-use spray device may be used. In the case of a spray type or an aerosol type, for example, the deodorant composition of the present invention may be contained in a spray container or an aerosol container and sprayed onto the work space to be deodorized. In the case of a stationary type, the deodorant composition of the present invention may be contained in a container and placed near the work space to be deodorized. The material of the container for containing the deodorant composition of the present invention may be any of plastic, glass, pottery, etc., and the capacity can also be appropriately set.

Examples

[0059] <Sensory Evaluation Method> 1500 parts by mass of a mixed sand of Freeman sand and recycled sand was put into a mixer (manufactured by Aikosha Co., Ltd., KENMIX, model number KM201). Next, 3.84 parts by mass of a phenolic resin hardener (manufactured by Kao Corporation, KAOSTEP WH-25) was added to the mixed sand and kneaded for 40 seconds, then stopped. Next, 19.2 parts by mass of a phenolic self-hardening resin (manufactured by Kao Corporation, KAOSTEP SH-8300) and 0.00064 parts by mass (100 parts by mass of the deodorant composition with respect to 600,000 parts by mass of the hardener) of the deodorant compositions of Examples 1 to 27 and Comparative Examples 1 to 2 were added to the kneaded material respectively, kneaded for 20 seconds and then stopped, and further kneaded for 20 seconds to prepare an organic mold material containing the deodorant composition. 40 parts by mass of the organic mold material containing the deodorant composition was put into a crucible container, covered, placed in a muffle furnace (manufactured by Koyo Thermo System Co., Ltd., KBF894N2) heated to 500°C, and held for 5 minutes. The sample was used for the following evaluation.

[0060] (1) Evaluation of the deodorizing effect of the unpleasant odor generated in the working space when the organic mold material is heated and the preference for the fragrance of the space After holding at 500°C for 5 minutes, the crucible was taken out of the furnace, and immediately the lid of the crucible container was removed in an environment of 25°C and 65% RH. After 30 seconds, regarding the odor spreading in the space 20 cm above the crucible container, six professional panelists agreed to evaluate according to the following criteria and then a sensory evaluation was carried out. And the average score of the six professional panelists was recorded in the table.

[0061] Evaluation criteria for the deodorizing effect of the unpleasant odor in the space Score 5: Odorless 4: Stronger deodorizing effect than Comparative Example 1 3: Slightly stronger deodorizing effect than Comparative Example 1 2; Deodorizing effect equivalent to Comparative Example 1 1; No deodorizing effect

[0062] Evaluation criteria for the preference for the fragrance of the space Score 4: A more pleasant fragrance than Comparative Example 1. 3: A slightly more pleasant fragrance than Comparative Example 1. 2; Equivalent to Comparative Example 1. 1; The fragrance of Comparative Example 1 is more pleasant.

[0063] (2) Evaluation of the deodorizing effect of the unpleasant odor adhering to clothing and the preference for the fragrance adhering to clothing After holding at 500 °C for 5 minutes, the crucible was taken out of the furnace, and immediately the lid of the crucible container was removed in an environment of 25 °C and 65% RH. The hardened sand in the crucible container was transferred onto a stainless steel tray placed on the bottom of an acrylic sealed container (50 cm in length, 50 cm in width, 30 cm in height) with a polyester 90%, cotton 10%, and a chemical fiber cloth with 8 cm square in length and width hanging from the top at normal temperature and normal pressure. Next, after sealing the acrylic container and allowing it to stand for 2 hours, the chemical fiber cloth was taken out of the acrylic sealed container, and after 1 minute, a sensory evaluation was carried out after 6 professional panelists reached an agreement to evaluate the odor of the chemical fiber cloth according to the following criteria. Then, the average score of the 6 professional panelists was recorded in the table.

[0064] Evaluation criteria for the deodorizing effect of the unpleasant odor adhering to clothing Score 5: Odorless 4: Stronger deodorizing effect than Comparative Example 1 3: Slightly stronger deodorizing effect than Comparative Example 1 2; Deodorizing effect equivalent to Comparative Example 1 1; No deodorizing effect

[0065] Evaluation criteria for the preference for the fragrance adhering to clothing Score 4: The fragrance is more pleasant than Comparative Example 1. 3: The fragrance is slightly more pleasant than Comparative Example 1. 2; Equivalent to Comparative Example 1. 1; The fragrance of Comparative Example 1 is more pleasant.

[0066] <Examples 1 to 14 and Comparative Example 1> Each component shown in Table 2 was uniformly mixed to obtain a deodorant composition. A sensory evaluation was conducted on the obtained deodorant composition. These results are also shown in Table 2.

[0067]

Table 2

[0068] <Examples 15 to 27 and Comparative Example 2> Each component shown in Table 3 was uniformly mixed to obtain a deodorant composition. The obtained deodorant composition was subjected to a sensory evaluation. These results are also shown in Table 3.

[0069]

Table 3

[0070] From Tables 2 and 3, it can be seen that by using a deodorant composition in which specific fragrance components are combined, not only the unpleasant odor generated during the molding of a mold using an organic mold material or during the pouring of molten metal into the mold, but also the unpleasant odor adhering to clothing can be deodorized without causing discomfort.

[0071] (3) Deodorizing effect of the working space by spraying the deodorant composition 1500 parts by mass of a mixed sand of Freemantle new sand and recycled sand was put into a mixer (manufactured by Aikosha Co., Ltd., KEN MIX, model number KM201). Next, 3.84 parts by mass of a phenolic resin hardener (manufactured by Kao Corporation, Kao Step WH-25) was added to the mixed sand and kneaded for 40 seconds, and then stopped. Next, 19.2 parts by mass of a phenolic self-hardening resin (manufactured by Kao Corporation, Kao Step SH-8300) was kneaded into the kneaded product for 20 seconds and then stopped, and further kneaded for 20 seconds to prepare a material for an organic mold.

[0072] Next, using the material for an organic mold, 10 molded products having a size of φ50 × 50 mm H (about 160 parts by mass) were produced and heated at 400 °C for 1 hour using an electric heater (manufactured by Espec Corporation, STPH-102M). After the heating was completed, the door was opened to release the unpleasant odor into the space (about 20 m × 30 m × height 10 m, with ventilation equipment at the top). The space of the test site where the unpleasant odor was released was filled with a strong unpleasant odor, and the odor could be felt up to a place 20 m away. The unpleasant odor also adhered to the clothing (work clothes) of the evaluators.

[0073] After allowing a malodor to waft through the space, the deodorant composition was mixed with tap water (deodorant composition 1: tap water 99) using a stationary sprayer with a mixer (Aqua Blend manufactured by ES Water Net, using a Mini Mist nozzle), and then sprayed in the longitudinal direction of the space in the test site where the malodor was emitted. A commercial blower (wind speed 2.5 m / s) was used to blow air from behind the sprayer.

[0074] For the sensory evaluation, three professional panelists agreed to evaluate the deodorizing effect of the malodor in the space and the deodorizing effect of the malodor adhering to the clothing at a position 20 m downwind from the sprayer according to the following criteria. The sensory evaluation was repeated three times for each deodorant composition using the deodorant compositions of Example 6, 20, and Comparative Example 1. Then, the average score of the three professional panelists was recorded in Table 4.

[0075] Evaluation criteria for the deodorizing effect of the malodor in the space Score 5: Odorless 4: Stronger deodorizing effect than Comparative Example 1 3: Slightly stronger deodorizing effect than Comparative Example 1 2; Deodorizing effect equivalent to Comparative Example 1 1; No deodorizing effect

[0076] Evaluation criteria for the deodorizing effect of the malodor adhering to the clothing Score 5: Odorless 4: Stronger deodorizing effect than Comparative Example 1 3: Slightly stronger deodorizing effect than Comparative Example 1 2; Deodorizing effect equivalent to Comparative Example 1 1; No deodorizing effect

[0077]

Table 4

[0078] From Table 4, it can be seen that by spraying a deodorant composition combining specific fragrance components, not only the malodor generated in the working space due to the organic molding material but also the malodor adhering to the clothing can be deodorized without causing discomfort.

[0079] Formulation Examples 1 to 11 Table 5 shows formulation examples of the deodorant composition of the present disclosure.

[0080] [Table 5]

Claims

1. A deodorant composition for unpleasant odors generated during the molding of a mold using an organic molding material or during the pouring of molten metal into the mold, The deodorant composition containing the following components (A) and component (B). (A) One or more selected from γ-decalactone and jasmon (B) One or more selected from ionone and damascon

2. The deodorant composition according to claim 1, wherein the mass ratio [(A) / (B)] of component (A) to component (B) is 0.1 or more and 10,000 or less.

3. The deodorant composition according to claim 1 or 2, wherein the content of component (A) is 0.01% by mass or more and 50% by mass or less.

4. The deodorant composition according to claim 1 or 2, wherein the content of component (B) is 0.0001% by mass or more and 25% by mass or less.

5. The deodorant composition according to claim 1 or 2, wherein component (A) is γ-decalactone and component (B) is ionone.

6. The deodorant composition according to claim 1 or 2, wherein component (A) is jasmon and component (B) is damascon.

7. Furthermore, the deodorant composition according to claim 1 or 2, containing the following compound as component (C). (C) One or two or more selected from linalool, linalool oxide, raspberry ketone, eugenol, geranyl acetate, geraniol, nerol, 2-phenylethyl alcohol, and coumarin

8. Furthermore, the deodorant composition according to claim 1 or 2, containing one or two or more solvents selected from the following (d1) to (d5) as component (D) (d1) A dihydric alcohol selected from dipropylene glycol and propylene glycol (d2) A monohydric alcohol selected from ethanol, 3-methoxy-3-methyl-1-butanol, 2-(2-ethoxyethoxy)ethanol, benzyl alcohol, phenoxyethanol, and dipropylene glycol monoethyl ether (d3) An ester selected from benzyl benzoate, isopropyl myristate, diethyl phthalate, and triethyl citrate (d4) A monocyclic monoterpene selected from dipentene and limonene (d5) Water

9. The deodorant composition according to claim 1 or 2, wherein the organic molding material contains a refractory aggregate and an organic curing agent.

10. The deodorant composition according to claim 1 or 2, used in one or more embodiments selected from the following (I) and (II). Before the organic mold material is heated, an odor eliminating agent composition is added to the organic mold material. In the working space where the organic mold material is heated, the odor eliminating agent composition is sprayed at any one or more of before, during, and after the heating of the organic mold material.

11. A method for eliminating unpleasant odors generated during the molding of a mold using an organic mold material or during the pouring of molten metal into the mold, The odor eliminating method using an odor eliminating agent composition containing the following components (A) and (B). (A)One or more selected from γ-decalactone and jasmon (B)One or more selected from ionone and damascon

12. The reduction method according to claim 11, wherein the odor eliminating agent composition is used in one or more embodiments selected from the following (I) and (II). (I)Before the organic mold material is heated, an odor eliminating agent composition is added to the organic mold material. (II)In the working space where the organic mold material is heated, the odor eliminating agent composition is sprayed at any one or more of before, during, and after the heating of the organic mold material.

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