Fragrance composition

Incorporating a pigment into aromatic compositions with polyphenols prevents discoloration, ensuring a good appearance and functional stability, particularly when used with volatilizing members.

JP7730623B2Active Publication Date: 2025-08-28KOBAYASHI PHARMA CO LTD
View PDF 7 Cites 0 Cited by

Patent Information

Application Number
JP2020086577
Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
Filing Date
2020-05-18
Publication Date
2025-08-28
Estimated Expiration
2040-05-18

AI Technical Summary

Technical Problem

Aromatic compositions containing polyphenols, such as green tea catechins and persimmon tannins, suffer from significant discoloration over time, particularly when absorbed into a volatilizing member and volatilized, leading to a deterioration in appearance.

Method used

Incorporating a pigment, preferably a blue or green phthalocyanine pigment, into the aromatic composition to suppress discoloration and maintain a good appearance.

Benefits of technology

The fragrance composition effectively prevents discoloration while maintaining appearance and functionality, including deodorizing properties, even when volatilized using a fibrous volatilizing member.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure 0007730623000001
    Figure 0007730623000001
Patent Text Reader

Abstract

To provide a fragrance composition that can suppress discoloration occurring over time even containing aroma material and polyphenol.SOLUTION: By blending a pigment into a fragrance composition containing aroma material and polyphenol, discoloration over time can be suppressed and good property of appearance can be maintained.SELECTED DRAWING: None
Need to check novelty before this filing date? Find Prior Art

Description

[Technical Field]

[0001] The present invention relates to an aromatic composition that contains a fragrance and a polyphenol and yet is capable of suppressing discoloration that occurs over time. [Background technology]

[0002] Air freshener compositions containing fragrances are widely used to create comfortable spaces by dispersing fragrances in rooms, etc. In addition, in order to diversify the functionality of air freshener compositions, air freshener compositions that combine both air freshening and deodorizing functions by blending deodorizing ingredients with the fragrance have been developed (see, for example, Patent Document 1).

[0003] Polyphenols such as green tea catechins and persimmon tannins have been known to have excellent deodorizing effects, and attempts have been made to incorporate them into fragrance compositions. However, when polyphenols are incorporated into fragrance compositions, there is a problem that the fragrance composition discolors over time, making it difficult to maintain a good appearance. In particular, when a fragrance composition contained in a container is absorbed into a volatilizing member and then volatilized, discoloration due to polyphenols becomes noticeable at the portion of the volatilizing member that comes into contact with air, resulting in a significant deterioration in appearance.

[0004] As described above, aromatic compositions containing polyphenols have a particular problem of discoloration over time, but until now, there has been no sufficient research into techniques for suppressing this discoloration and maintaining a good appearance. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Japanese Patent Application Laid-Open No. 2010-284511 Summary of the Invention [Problem to be solved by the invention]

[0006] An object of the present invention is to provide an aromatic composition that contains a fragrance and a polyphenol and yet is capable of suppressing discoloration that occurs over time. [Means for solving the problem]

[0007] The present inventors have conducted extensive research to solve the above-mentioned problems and have found that blending a pigment into an aromatic composition containing a fragrance and a polyphenol can suppress discoloration over time and maintain good appearance. Based on this finding and further research, the present invention has been completed.

[0008] That is, the present invention provides the following aspects. Item 1. A fragrance composition containing a fragrance, a polyphenol, and a pigment. Item 2. The fragrance composition according to Item 1, wherein the pigment is tannin and / or catechin. Item 3. The fragrance composition according to Item 1 or 2, wherein the pigment is a blue pigment and / or a green pigment. Item 4. The fragrance composition according to any one of Items 1 to 3, wherein the pigment is a phthalocyanine blue pigment and / or a phthalocyanine green pigment. Item 5. The aromatic agent composition according to any one of Items 1 to 4, which is used by being absorbed into a volatilizing member and volatilized. Item 6. A method for suppressing discoloration of an aromatic composition containing a fragrance and a polyphenol, comprising: A method for inhibiting discoloration by incorporating a fragrance, a polyphenol, and a pigment into an aromatic composition. [Effects of the Invention]

[0009] The fragrance composition of the present invention, while containing a fragrance and a polyphenol, can suppress discoloration over time, thereby maintaining a good appearance and providing satisfaction from a design standpoint. Furthermore, the fragrance composition of the present invention can exert functionality such as a deodorizing function due to the polyphenol, thereby providing satisfaction to consumers from the standpoint of functionality as well. DETAILED DESCRIPTION OF THE INVENTION

[0010] 1. Fragrance composition The fragrance composition of the present invention is characterized by containing a fragrance, a polyphenol, and a pigment. The fragrance composition of the present invention will be described in detail below.

[0011] [Fragrance] The fragrance composition of the present invention contains a fragrance as a fragrance component. The fragrance used in the present invention may be any oil-based fragrance such as a natural fragrance, a single fragrance isolated from a natural fragrance, a synthetic single fragrance, or a blend of these, and conventionally known fragrances can be used. Specific examples of the single fragrance include hydrocarbon-based fragrances, alcohol-based fragrances, ether-based fragrances, aldehyde-based fragrances, acetal-based fragrances, ester-based fragrances, ketone-based fragrances, carboxylic acid-based fragrances, lactone-based fragrances, musk-based fragrances, nitrile-based fragrances, and sulfur-containing fragrances. Natural fragrances include tuberose oil, musk tincture, castoreum tincture, civet tincture, ambergris tincture, peppermint oil, perilla oil, petitgrain oil, pine oil, rose oil, rosemary oil, camphor oil, aromatic oils, clary sage oil, sandalwood oil, spearmint oil, spike lavender oil, star anise oil, lavandin oil, lavender oil, lemon oil, lemongrass oil, lime oil, neroli oil, oakmoss oil, ocotia oil, patchouli oil, and thyme oil. , tonka bean tincture, turpentine oil, crocodile bean tincture, basil oil, nutmeg oil, citronella oil, clove oil, bois rose oil, cananga oil, cardamom oil, cassia oil, cedarwood oil, orange oil, mandarin oil, tangerine oil, anise oil, bay oil, coriander oil, elemi oil, eucalyptus oil, fennel oil, galbanum oil, geranium oil, hiba oil, cypress oil, jasmine oil, vetiver oil, bergamot oil, ylang-ylang oil, grapefruit oil, yuzu oil, etc. These fragrances may be used alone, or two or more may be combined to create a fragrance.

[0012] The content of the fragrance in the fragrance composition of the present invention may be appropriately determined depending on the type of fragrance used, the strength of the fragrance to be imparted, etc., and may be, for example, 0.1 to 30% by weight, preferably 0.5 to 10% by weight, and more preferably 1 to 5% by weight.

[0013] [Polyphenols] The aromatic composition of the present invention contains a polyphenol. Conventional aromatic compositions containing polyphenols have the problem of discoloration over time, resulting in a deterioration in appearance. However, the present invention contains a pigment described below, which inhibits discoloration over time and enables the maintenance of good appearance.

[0014] The type of polyphenol used in the present invention may be appropriately selected depending on the functionality to be imparted to the fragrance composition, but a suitable example is a polyphenol that can function as a deodorizing component. Specific examples of polyphenols that can function as deodorizing components include flavonoids such as tannin, catechin, anthocyanin, rutin, and flavone; and phenolic acids such as ellagic acid and coumarin. Among these polyphenols, flavonoids are preferred, and tannin and catechin are more preferred.

[0015] The origin of these polyphenols is not particularly limited and may be appropriately determined depending on the type of polyphenol used, but suitable examples include tannins derived from persimmons (persimmon tannins) and catechins derived from green tea (green tea catechins). Persimmon tannins and green tea catechins have excellent deodorizing properties, but in conventional technologies, when they are incorporated into fragrance compositions, there is a problem that they cause significant browning over time. However, the fragrance composition of the present invention can effectively suppress browning even when it contains persimmon tannins and / or green tea catechins.

[0016] In the present invention, a plant extract containing polyphenols may be used as the polyphenol. The plant extract containing polyphenols may be obtained by extracting a plant containing polyphenols, or may be a commercially available product.

[0017] In the fragrance composition of the present invention, one type of polyphenol may be used alone, or two or more types of polyphenols may be used in combination.

[0018] The content of polyphenols in the fragrance composition of the present invention may be appropriately determined depending on the type of polyphenol used, the functionality to be imparted, etc., and may be, for example, 0.05 to 30% by weight, preferably 0.1 to 10% by weight, and more preferably 0.5 to 8% by weight.

[0019] [Pigment] The fragrance composition of the present invention contains a pigment in addition to the above components. By including a pigment in the fragrance composition of the present invention, discoloration over time can be suppressed even while the fragrance and polyphenol are included, and therefore good appearance properties can be maintained.

[0020] The pigment used in the present invention may be either an organic pigment or an inorganic pigment, but is preferably an aqueous pigment (i.e., a content that can be dispersed in water). The pigment used in the present invention is not particularly limited in terms of the type of color it exhibits, and examples thereof include blue pigments, green pigments, red pigments, yellow pigments, purple pigments, black pigments, and white pigments.

[0021] Specific examples of blue pigments include CI Pigment Blue 1, 2, 15, 15:1, 15:2, 15:3, 15:4, 15:6, 16, 17, 22, 28, 60, 64, 66, 79, and 80. Of these blue pigments, CI Pigment Blue-15 (copper phthalocyanine), 15:1, 15:2, 15:3, 15:4, 15:6, and 28 (cobalt aluminate) are preferred. In this specification, "CI" is an abbreviation for Colour Index International.

[0022] Specific examples of green pigments include CI Pigment Green-7, 10, 18, 20, 36, 37, 50, 58, and 59. Of these green pigments, CI Pigment Green-7 (hexadecachlorophthalocyaninatocopper(II)), 18 (hydrated chromium oxide), and 36 are preferred.

[0023] Red pigments include CI Pigment Red-1, 2, 3, 4, 5, 6, 7, 9, 10, 14, 17, 22, 23, 31, 38, 41, 48:1, 48:2, 48:3, 48:4, 49, 49:1, 49:2, 52:1, 52:2, 53:1, 57:1, 60:1, 63:1, 66, 67, 81:1, 81:2, 81:3, 83, 88, 90, 105, 112, 119, 12 2, 123, 144, 146, 149, 150, 155, 166, 168, 169, 170, 171, 172, 175, 176, 177, 178, 179, 184, 185, 187, 188, 190, 200, 202, 206, 207, 208, 209, 210, 216, 220, 224, 226, 242, 246, 254, 255, 264, 270, 272, 279, etc. Among these red pigments, CI Pigment Red-5 (Permanent Carmine FB) is preferred.

[0024] As yellow pigments, specifically, CI Pigment Yellow-1, 2, 3, 4, 5, 6, 10, 11, 12, 13, 14, 15, 16, 17, 18, 20, 24, 31, 32, 34, 35, 35:1, 36, 36:1, 37, 37:1, 40, 42, 43, 53, 55, 60, 61, 62, 63, 65, 73, 74, 77, 81, 83, 86, 93, 94, 95, 97, 98, 100, 101, 104, 106, 108, 109, 110, 113, 114, 115, 116, 117, 118, 119, 120, 123, 125, 126, 127, 128, 129, 137, 138, 139, 147, 148, 150, 151, 152, 153, 154, 155, 156, 161, 162, 164, 166, 167, 168, 169, 170, 171, 172, 173, 174, 175, 176, 177, 179, 180, 181, 182, 185, 187, 188, 193, 194, 199, 213, 214, etc. Among these yellow pigments, CI Pigment Yellow-17 (2,2'-[(3'-dichloro-2,2'-[(3'-biphenyl]-4,4'-diyl)bis(2,1-diazenediyl))-N,N'-bis]-N,N'-methoxyphenyl)-3,3'-dioxodibutanamide) is preferred.

[0025] As purple pigments, specifically, CI Pigment Violet-1, 2, 3, 4, 5, 6, 7, 9, 10, 14, 17, 19, 22, 23, 27, 31, 32, 37, 38, 41, 42, 48:1, 48:2, 48:3, 48:4, 49, 49:1, 49:2, 52:1, 52:2, 53:1, 57:1, 60:1, 63:1, 66, 67, 81:1, 81:2, 81:3, 83, 88, 90, 105, 110 12, 119, 122, 123, 144, 146, 149, 150, 155, 166, 168, 169, 170, 171, 172, 175, 176, 177, 178, 179, 184, 185, 187, 188, 190, 200, 202, 206, 207, 208, 209, 210, 216, 220, 224, 226, 242, 246, 254, 255, 264, 270, 272, and 279. Among these purple pigments, CI Pigment Violet-23 (8,18-dichloro-5,15-diethyl-5,15-dihydrodiindolo[3,2-b:3′,2′-m]triphenodioxazine) is preferred.

[0026] Specific examples of black pigments include CI Pigment Black-1, 6, and 7. Of these black pigments, CI Pigment Black-7 (carbon black) is preferred.

[0027] Specific examples of white pigments include styrene, titanium oxide, zinc white, lithopone, etc. Among these white pigments, styrene is preferred.

[0028] Among these pigments, blue pigments and green pigments are preferred from the viewpoint of more effectively suppressing discoloration over time. In particular, phthalocyanine blue pigments such as CI Pigment Blue-15, 15:1, 15:2, 15:3, 15:4, and 15:6, and phthalocyanine green pigments such as CI Pigment Green-7 and 36 are particularly suitable for use because they can remarkably effectively suppress discoloration over time.

[0029] In the fragrance composition of the present invention, one type of pigment may be used alone, or two or more types of pigments may be used in combination.

[0030] The content of the pigment in the fragrance composition of the present invention may be appropriately set depending on the type of pigment used and other factors within a range that makes the fragrance composition colored and transparent (including translucent), and may be, for example, 0.01 to 1000 ppm, preferably 0.05 to 500 ppm, more preferably 0.1 to 250 ppm, even more preferably 0.1 to 100 ppm, still more preferably 0.5 to 50 ppm, and particularly preferably 2 to 8 ppm.

[0031] [solvent] The fragrance composition of the present invention contains a solvent as a base material. The solvent used in the present invention may be either an aqueous solvent or an oil-based solvent, but is preferably an aqueous solvent.

[0032] Specific examples of aqueous solvents include water; alcohols such as methanol, ethanol, propanol, butanol, and 3-methoxy-3-methyl-1-butanol; and glycols such as ethylene glycol, propylene glycol, and dipropylene glycol. These aqueous solvents may be used alone or in combination of two or more. Among these aqueous solvents, preferred are water, ethanol, 3-methoxy-3-methyl-1-butanol, propylene glycol, and dipropylene glycol; and more preferred is water.

[0033] The content of the solvent in the fragrance composition of the present invention is appropriately set depending on the content of each added component, and may be, for example, 24 to 99% by weight, preferably 65 to 98% by weight, and more preferably 80 to 97% by weight.

[0034] [Surfactants] When the fragrance composition of the present invention contains an aqueous solvent as a base material, it preferably contains a surfactant to solubilize or disperse the fragrance and polyphenols.

[0035] The type of surfactant used in the present invention is not particularly limited, and may be any of a nonionic surfactant, an anionic surfactant, a cationic surfactant, and an amphoteric surfactant.

[0036] Specific examples of surfactants include nonionic surfactants such as polyoxyethylene hydrogenated castor oil, polyoxyethylene hydrogenated castor oil ether, polyethylene alkyl ether, polyoxyethylene fatty acid ester, polyoxyethylene glyceryl ether fatty acid ester, alkyl alkanolamide, alkyl polyglucoside, sorbitan fatty acid ester, glycerin fatty acid ester, polyoxyethylene sorbitan fatty acid ester, and polyoxyethylene polyoxypropylene glycol; anionic surfactants such as polyoxyethylene alkyl ether sulfate, sulfosuccinate, dialkyl sulfosuccinate, N-acylamino acid salt, carboxylate, sulfonic acid, and phosphate; cationic surfactants such as alkyl ammonium salt; and amphoteric surfactants such as alkylamidobetaine and alkyldimethylamine oxide. These surfactants may be used alone or in combination of two or more. Among these surfactants, nonionic surfactants and anionic surfactants are preferred.

[0037] When a surfactant is contained in the fragrance composition of the present invention, the content thereof is not particularly limited, but may be, for example, 0.1 to 15% by weight, preferably 0.5 to 10% by weight, and more preferably 1 to 5% by weight.

[0038] [Other ingredients] In addition to the above-mentioned components, the fragrance composition of the present invention may contain other components as long as the effects of the present invention are not impaired. Examples of other components that can be contained in the fragrance composition of the present invention include preservatives, solvents, deodorizers (other than polyphenols), disinfectants, ultraviolet absorbers, pH adjusters, insecticidal components, insect repellent components, and the like.

[0039] [Form / Application] The form of the aromatic composition of the present invention is not particularly limited, and may be, for example, a liquid or a gel. The aromatic composition of the present invention is preferably in the form of a liquid. The aromatic composition of the present invention is used as an aromatic for a room, a toilet, a car, etc.

[0040] [Volatilization materials] The method for volatilizing the aromatic composition of the present invention is not particularly limited, but a suitable example is a method in which the aromatic composition is absorbed into a volatilization member and then volatilized. An example of a volatilizer equipped with a volatilization member is a volatilizer comprising a container having an opening, a volatilization member, and the aromatic composition of the present invention contained in the container, with at least a portion of the volatilization member immersed in the aromatic composition of the present invention and at least a portion of the volatilization member being exposed to the air through the opening. By using such a volatilizer, the volatilization member absorbs and volatilizes the liquid aromatic composition of the present invention, allowing the fragrance to be efficiently volatilized into the space.

[0041] The material of the volatilization member is not particularly limited as long as it has the property of being capable of being impregnated with an aromatic agent composition and volatilizing it, and examples thereof include fibrous materials such as natural fibers such as cotton, plant fibers, and pulp, synthetic fibers such as rayon, polyester, and polyethylene terephthalate, and mixtures thereof; wood materials such as wood chips, rattan, bamboo, and sora; and resin sponge materials such as urethane foam. When the volatilization member is made of a fibrous material, it is preferably filter paper or nonwoven fabric, but woven fabrics, knitted fabrics, etc. may also be used. The shape of the volatilization member is not particularly limited, and may be any of a sheet, block, rod, strip, string, etc.

[0042] In the prior art, when a polyphenol-containing aromatic composition is volatilized using a volatilization member made of a fibrous material, there is a problem that discoloration due to the polyphenol occurs significantly at the portion of the volatilization member that comes into contact with air, resulting in a significant deterioration in appearance. However, the aromatic composition of the present invention overcomes this problem, and even when a volatilization member made of a fibrous material is used, discoloration of the volatilization member can be effectively suppressed. In view of the exceptional effects of the present invention, one preferred embodiment of the aromatic composition of the present invention is to volatilize the aromatic composition using a volatilization member made of a fibrous material.

[0043] 2. How to prevent discoloration The discoloration suppression method of the present invention is a method for suppressing discoloration of an aromatic composition containing a fragrance and a polyphenol, and is characterized in that the aromatic composition contains a fragrance, a polyphenol, and a pigment.

[0044] In the discoloration suppression method of the present invention, the types and contents of the fragrances, polyphenols, pigments, and other ingredients blended into the fragrance composition, the form and use of the fragrance composition, the volatile materials used, etc. are as described in the section "1. Fragrance composition" above. [Example]

[0045] The present invention will be described below with reference to examples, but the present invention is not limited to these examples.

[0046] Test Example 1 A liquid fragrance composition was prepared having the composition shown in Table 1. 400 ml of the obtained fragrance composition was placed in a 450 ml container (opening area: approximately 7 cm 2 The container was then placed in a container, and a volatilizing member (a nonwoven composite fiber material of polyethylene terephthalate and pulp; a nonwoven sheet 295 mm long, 39 mm wide, and 6 mm thick, folded and overlapped from the center in the longitudinal direction) was inserted into the container, with part of the volatilizing member protruding outside the opening of the container, and the fragrant agent composition was impregnated into the container. In this state, the container was stored in a room exposed to sunlight for one month.

[0047] Five panelists trained in color tone evaluation observed the difference in color tone of the fragrance composition between the start of storage and after one month of storage, and the difference in color tone of the part of the volatilizing member in contact with air between the start of storage and after one month of storage, and scored the results on a scale of 0, 1, 2, 3, 4, 3, or 5, with "5 points" indicating no change in color between the start of storage and after one month of storage, and "0 points" indicating a significant change in color between before and after one month of storage. The scores of the five panelists were added together, and the color stability was evaluated according to the following classification criteria. <Classification criteria for color stability> ◎: Total score is 41 to 50 points ○: Total score is 31 to 40 points △: Total score is 21 to 30 points ×: Total score is 0 to 20 points

[0048] The results are shown in Table 1. When an aromatic composition containing a fragrance and a polyphenol but no pigment was used, discoloration (browning) of the aromatic composition was observed after storage, and discoloration of the volatile component was particularly noticeable after storage (Comparative Examples 1 and 2). In contrast, when an aromatic composition containing a pigment in addition to a fragrance and a polyphenol was used, discoloration of the aromatic composition and the volatile component was effectively suppressed even after storage (Examples 1 to 14). In particular, as can be seen from a comparison between Examples 1 and 3 and Examples 2 and 4 to 9, when CI Pigment Blue-15, a phthalocyanine blue pigment, and Pigment Green-7, a phthalocyanine green pigment, were used, discoloration of both the aromatic composition and the volatile component after storage was significantly suppressed.

[0049] [Table 1]

Claims

1. Contains fragrances, polyphenols, and pigments, the pigment is at least one selected from the group consisting of a phthalocyanine blue pigment, C.I. Pigment Blue-28, a phthalocyanine green pigment, C.I. Pigment Green-18, C.I. Pigment Red-5, C.I. Pigment Yellow-17, C.I. Pigment Violet-23, C.I. Pigment Black-7, and styrene; The phthalocyanine blue pigment is at least one selected from the group consisting of C.I. Pigment Blue-15, 15:1, 15:2, 15:3, 15:4, and 15:6, The phthalocyanine green pigment is at least one selected from the group consisting of C.I. Pigment Green-7 and 36.

2. The fragrance composition according to claim 1, wherein the polyphenol is tannin and / or catechin.

3. 3. The air freshener composition according to claim 1, which is used by being absorbed into a vaporizing member and vaporized.

4. A method for suppressing discoloration of a fragrance composition used by vaporization, which contains a fragrance and a polyphenol, comprising: In the fragrance composition, a fragrance, a polyphenol, and a pigment are contained, the pigment is at least one selected from the group consisting of a phthalocyanine blue pigment, C.I. Pigment Blue-28, a phthalocyanine green pigment, C.I. Pigment Green-18, C.I. Pigment Red-5, C.I. Pigment Yellow-17, C.I. Pigment Violet-23, C.I. Pigment Black-7, and styrene; The phthalocyanine blue pigment is at least one selected from the group consisting of C.I. Pigment Blue-15, 15:1, 15:2, 15:3, 15:4, and 15:6, The phthalocyanine green pigment is at least one selected from the group consisting of C.I. Pigment Green-7 and 36.

Citation Information

Patent Citations

  • Prevention of change of color of polyphenol

    JP1988145213A

  • Method for preventing discoloration of polyphenol

    JP1989009946A

  • Composition comprising polyphenolic compound

    JP1994239716A

  • Enhancing agent for effectiveness of organic deodorant component and deodorizer blended with the same

    JP2006326278A

  • Stabilized pharmaceutical preparation and cosmetic composition comprising catechin or its derivative

    JP2007031420A