Absorbent articles

Abstract

To provide an absorbent article that suits consumer tastes, is substantially free from odor derived from a tick repellent perfume, and includes a perfume composition for the indoor dust-related tick repellent having superior repellent activity to the indoor dust-related tick.SOLUTION FOR THE PROBLEM: An absorbent article contains: (a) a perfume composition for an indoor dust-related tick repellent containing 1 or 2 or more and selected from a group comprising a benzyl benzoate, benzyl salicylate, 3-methyl-5-phenyl-1-pentanol, p-menthane-3,8-diol, tricyclodecenyl propionate and tricyclodecenyl acetate; and a water absorbing polymer.SELECTED DRAWING: None

Description

[Technical field]

[0001] The present invention relates to an absorbent article. [Background technology]

[0002] In recent years, due to changes in living environments, there has been a massive infestation of house dust mites, such as dust mites, house dust mites, and other house dust mites, in indoor spaces, which not only causes discomfort but also gives rise to problems such as allergic asthma and skin rashes.

[0003] In light of this situation, techniques have been sought that do not kill house dust mites but rather keep them away from people and patients, and several proposals have been made so far. For example, Patent Document 1 discloses a fragrance composition for repelling house dust mites, the active ingredient of which is a cinnamic acid derivative such as cinnamyl acetate or methyl cinnamate. Patent Document 2 also discloses plant essential oils such as vetiver oil, patchouli oil, and clove oil as the active ingredient of a fragrance composition for repelling house dust mites. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2006-89424 A [Patent Document 2] Japanese Patent Application Publication No. 6-16515 Summary of the Invention [Problem to be solved by the invention]

[0005] These house dust mite repellent fragrance compositions generally have a strong odor. Therefore, it is good for products that utilize the odor or for products used in places where people do not stay often. However, for absorbent articles such as disposable diapers worn by people and bed sheets used by bedridden elderly people, there is a demand for absorbent articles containing a house dust mite repellent fragrance composition that is almost odorless and has excellent repellent activity against house dust mites.

[0006] Therefore, the present invention aims to provide an absorbent article comprising a fragrance composition for repelling house dust mites, which meets consumer preferences, is substantially free of odors derived from mite repellent fragrances, and has excellent repellent activity against house dust mites. [Means for solving the problem]

[0007] The present inventors conducted intensive research to solve the above problems, and found that a fragrance composition for repelling house dust mites, which contains one or more selected from the group consisting of benzyl benzoate, benzyl salicylate, 3-methyl-5-phenyl-1-pentanol, p-menthane-3,8-diol, tricyclodecenyl propionate, and tricyclodecenyl acetate, has excellent mite repellent effect and, further, has almost no odor compared to general fragrances for repelling house dust mites.Then, the inventors found that by blending these fragrance compositions for repelling house dust mites in advance in absorbent articles, it is possible to obtain a product that meets the tastes of consumers, has substantially no odor derived from the mite repellent fragrance, and has excellent repellent activity against house dust mites, and thus completed the present invention.

[0008] That is, the present invention has discovered that the following configurations are highly effective in achieving the above-mentioned objectives. (1) (a) An absorbent article comprising a fragrance composition for repelling house dust mites, the fragrance composition comprising one or more compounds selected from the group consisting of benzyl benzoate, benzyl salicylate, 3-methyl-5-phenyl-1-pentanol, p-menthane-3,8-diol, tricyclodecenyl propionate, and tricyclodecenyl acetate, and a water-absorbent polymer. (2) The absorbent article according to (1), characterized in that the fragrance composition for repelling house dust mites contains (a) two or more members selected from the group consisting of benzyl benzoate, benzyl salicylate, 3-methyl-5-phenyl-1-pentanol, p-menthane-3,8-diol, tricyclodecenyl propionate, and tricyclodecenyl acetate. (3) An absorbent article according to (1) or (2), The absorbent article is characterized in that the fragrance composition for repelling house dust mites is one or more kinds selected from the group consisting of synthetic fragrances, natural fragrances, and essential oils. (4) The absorbent article according to any one of (1) to (3), which is a diaper for humans, a sheet for humans, a diaper for pets, a floor sheet for pets, or a toilet sheet for pets. (5) The absorbent article according to any one of (1) to (4), which is a diaper for human use or a sheet for human use. Effect of the Invention

[0009] The absorbent article of the present invention exhibits excellent effects, such as being to the taste of consumers, being substantially free of odors derived from mite repellent fragrances, and having excellent repellent activity against house dust mites. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0010] The absorbent article of the present invention will be described below. However, the present invention is not intended to be limited to the configuration described below.

[0011] The house dust mite repellent fragrance composition used in the absorbent article of the present invention contains (a) one or more selected from the group consisting of benzyl benzoate, benzyl salicylate, 3-methyl-5-phenyl-1-pentanol, p-menthane-3,8-diol, tricyclodecenyl propionate, and tricyclodecenyl acetate, and preferably contains (a) two or more selected from the group consisting of benzyl benzoate, benzyl salicylate, 3-methyl-5-phenyl-1-pentanol, p-menthane-3,8-diol, tricyclodecenyl propionate, and tricyclodecenyl acetate, and is palatable to consumers, is substantially free of the odor derived from mite repellent fragrances, and has excellent repellent activity against house dust mites.

[0012] The blending amount of (a) in the house dust mite repellent fragrance composition of the present invention is not particularly limited, but is preferably 0.1% by mass to 100% by mass, more preferably 0.5% by mass to 80% by mass, and even more preferably 1% by mass to 60% by mass.

[0013] Examples of the indoor dust mite repellent fragrance, which is one of the components of the above-mentioned indoor dust mite repellent fragrance composition, include (a) benzyl benzoate, benzyl salicylate, 3-methyl-5-phenyl-1-pentanol, p-menthane-3,8-diol, tricyclodecenyl propionate, and tricyclodecenyl acetate, etc. The indoor dust mite repellent fragrance may be any of synthetic fragrances, natural fragrances, and essential oils, or may be a mixture of these.

[0014] In the present invention, as long as it does not deviate from the purpose of the present invention that there is substantially no odor derived from the mite repellent fragrance, other ingredients such as other fragrances may be blended into the fragrance composition for repelling indoor dust mites to make an absorbent article with a fragrance that matches the taste of consumers. Examples of the terpene alcohols include terpineol, citronellol, geraniol, nerol, linalool, dihydrolinalool, tetrahydrolinalool, dihydromyrcenol, menthol, borneol, and isoborneol, terpene aldehydes such as citronellal, citral, and dimethyloctanal, and terpene ketones such as carvone, dihydrocarvone, pulegone, and menthone, but are not limited thereto. In addition, plant essential oils containing these ingredients, such as citronella oil, cinnamon oil, eucalyptus oil, lemon eucalyptus oil, Japanese cedar oil, lavender oil, orange oil, grapefruit oil, cedarwood oil, geranium oil, thyme white oil, and peppermint oil, may be blended. In addition, compound fragrances such as soap fragrances, citrus fragrances, mint fragrances, floral fragrances, lavender fragrances, rose fragrances, and green herb fragrances may be blended.

[0015] The fragrance composition for repelling house dust mites of the present invention may be appropriately blended with antifungal ingredients such as 2-phenylphenol (OPP) and 4-isopropyl-3-methylphenol (IPMP) as necessary. In addition, antibacterial ingredients, disinfecting ingredients, deodorant ingredients, stabilizers such as BHT, pH adjusters such as citric acid, colorants, bittering agents such as Vitrex, etc. may be blended. These various ingredients are not particularly limited.

[0016] The various components such as solvents and surfactants that can be used in preparing the indoor dust mite repellent fragrance composition of the present invention are not particularly limited, but in addition to water, various solvents such as alcohol-based solvents such as ethanol and isopropanol, glycol-based solvents such as 1,3-butylene glycol, propylene glycol, and dipropylene glycol, glycol ether-based solvents such as diethylene glycol monobutyl ether and propylene glycol monomethyl ether, and aliphatic hydrocarbon-based solvents, as well as surfactants (solubilizers), can be used as appropriate. Examples of surfactants include nonionic surfactants such as polyoxyethylene hydrogenated castor oil, polyoxyethylene higher alkyl ethers (polyoxyethylene lauryl ether, polyoxyethylene oleyl ether), polyoxyethylene higher fatty acid esters, polyoxyethylene polyoxypropylene alkyl ethers, and higher alkylamine oxide surfactants such as laurylamine oxide, stearylamine oxide, and lauric acid amidopropyl dimethylamine oxide.

[0017] The water-absorbing polymer in the present invention is not particularly limited, but for example, in the case of producing a disposable diaper using the above-mentioned fragrance composition for repelling house dust mites, in addition to polyacrylate-based disposable diapers that are generally available on the market for the purpose of absorbing moisture from excrement, water-absorbing polymers such as starch-polyacrylate graft-based, polyvinyl alcohol-based, vinyl alcohol-acrylate copolymer, isobutylene-maleic acid copolymer, etc. are generally used, and any of these water-absorbing polymers may be used. The same is true for bed sheets and mats for bedridden elderly people, incontinence pads, sanitary napkins, disposable diapers for pets, toilet sheets, floor sheets, etc.

[0018] The blending ratio of the house dust mite repellent fragrance composition and the water-absorbent polymer in the present invention is not particularly limited, but the blending ratio of the house dust mite repellent fragrance composition and the water-absorbent polymer is usually 1:100 to 5:1 (weight ratio), preferably 1:50 to 4:1 (weight ratio).

[0019] In manufacturing various absorbent articles of the present invention, the above-mentioned house dust mite repellent fragrance composition can be used as it is. Also, when a water-absorbing polymer is used as in the case of disposable diapers, the house dust mite repellent fragrance composition can be mixed uniformly with the water-absorbing polymer in advance and used, or the composition can be encapsulated in microcapsules and stored in a storage member and used.

[0020] The amount of the fragrance composition for repelling house dust mites used in the present invention is, for example, 0.01 to 5.0 g, preferably 0.02 to 4.0 g, per 1 g of water-absorbing polymer when used in a disposable diaper. The appropriate amount is 0.10 to 1.00 g per 1 g of water-absorbing polymer for disposable diapers for adults, 0.05 to 0.30 g per 1 g of water-absorbing polymer for disposable diapers for infants, and 0.10 to 1.00 g per 1 g of water-absorbing polymer for disposable diapers for pets.

[0021] In addition to disposable diapers such as the above-mentioned human diapers and pet diapers, the present invention can also be used in absorbent articles such as bed sheets and mats for bedridden elderly people, pads for incontinent people, and sanitary napkins. Furthermore, the present invention can also be used in absorbent articles such as disposable diapers, floor mats, or toilet sheets for disposal of feces and urine of pets such as dogs and cats kept indoors. The absorbent article of the present invention is preferably a human diaper, a human sheet, a pet diaper, a pet floor sheet, or a pet toilet sheet, and more preferably a human diaper or a human sheet. EXAMPLES

[0022] The present invention will be described in more detail below with reference to examples, but the present invention is not limited to these.

[0023] (Test Example 1) <Tick repellent efficacy test> The dose in each test was 200 mg / m 2 The test for mite repellency was carried out in accordance with the intrusion prevention method described in JIS L 1920, and the intrusion prevention rate was calculated according to the following formula. Invasion prevention rate (%) = [Number of invaded mites in untreated area - Number of invaded mites in treated area] / Number of invaded mites in untreated area x 100 The mite repellent effect of each component was then evaluated based on the obtained intrusion inhibition rate and on the following criteria. ◎: Intrusion prevention rate 90-100%, ○: Intrusion prevention rate 70-90%, △: Intrusion prevention rate 50-70%, ×: Intrusion prevention rate <50%

[0024] The results of the mite repellency test are shown in Table 1.

[0025] [Table 1]

[0026] (Test Example 2) <Odorlessness confirmation test> 10 mg of each component listed in Table 2 was placed on a plate with a base area of ​​6 cm 2 The mixture was applied to a petri dish, which was then placed in the center of the bottom of an aluminum cylinder with a capacity of approximately 14 L and sealed for 5 minutes. After that, part of the aluminum cylinder was opened and five panelists in their 20s to 50s evaluated the presence or absence of odor according to the following criteria. ◎: 0-1 out of 5 people notice the odor. 〇: 2 out of 5 people notice the odor. △: 3 out of 5 people notice the odor. ×: 4-5 out of 5 people notice the odor.

[0027] The results of the odorlessness confirmation test are shown in Table 2.

[0028] [Table 2]

[0029] (Test Example 3) <Mite repellent efficacy test using paper diapers> A 15g diaper base paper (30x65cm) containing a polyacrylate-based water-absorbent polymer was impregnated with a fragrance composition for repelling house dust mites, containing 400mg of the fragrance (3-methyl-5-phenyl-1-pentanol) of Example 2, and dried to prepare a paper diaper. This paper diaper was cut into a circle with a diameter of 40mm. Using this sample, a mite repellency test was carried out according to the intrusion prevention method described in JIS L 1920, and the intrusion prevention rate was calculated according to the following formula. Invasion prevention rate (%) = [Number of invaded mites in untreated area - Number of invaded mites in treated area] / Number of invaded mites in untreated area x 100

[0030] As a result of the test, it was found that when the above-mentioned fragrance composition for repelling house dust mites was used, the intrusion prevention rate against house dust mites was 85% or more. In addition, no odor originating from the fragrance for repelling house dust mites was felt.

[0031] (Test Example 4) <Mite repellent efficacy test using paper diapers> A 15g diaper base paper (30x65cm) containing a polyacrylate-based water-absorbent polymer was impregnated with the fragrance composition for repelling house dust mites, containing 300mg of the fragrance (benzyl benzoate) of Example 4, and dried to prepare a paper diaper. This paper diaper was cut into a circle with a diameter of 40mm. Using this sample, a mite repellency test was carried out according to the intrusion prevention method described in JIS L 1920, and the intrusion prevention rate was calculated according to the following formula. Invasion prevention rate (%) = [Number of invaded mites in untreated area - Number of invaded mites in treated area] / Number of invaded mites in untreated area x 100

[0032] As a result of the test, it was found that when the above-mentioned fragrance composition for repelling house dust mites was used, the intrusion prevention rate against house dust mites was 90% or more. In addition, no odor originating from the fragrance for repelling house dust mites was felt.

[0033] (Test Example 5) <Mite repellent efficacy test using paper diapers> A 15g diaper base paper (30x65cm) containing a polyacrylate-based water-absorbent polymer was impregnated with the fragrance composition for repelling house dust mites, containing 300mg of the fragrance (benzyl salicylate) of Example 5, and dried to prepare a paper diaper. This paper diaper was cut into a circle with a diameter of 40mm. Using this sample, a mite repellency test was carried out according to the intrusion prevention method described in JIS L 1920, and the intrusion prevention rate was calculated according to the following formula. Invasion prevention rate (%) = [Number of invaded mites in untreated area - Number of invaded mites in treated area] / Number of invaded mites in untreated area x 100

[0034] As a result of the test, it was found that when the above-mentioned fragrance composition for repelling house dust mites was used, the intrusion prevention rate against house dust mites was 90% or more. In addition, no odor originating from the fragrance for repelling house dust mites was felt.

[0035] (Test Example 6) <Mite repellent efficacy test using paper diapers> A 15g diaper base paper (30x65cm) containing a polyacrylate-based water-absorbent polymer was impregnated with 300mg of the fragrance composition for repelling house dust mites of Example 8 (a blend of tricyclodecenyl normal propionate and p-menthane-3,8-diol in a ratio of 1:1), and dried to prepare a paper diaper. This paper diaper was cut into a circle with a diameter of 40mm. Using this sample, a mite repellency test was performed according to the intrusion prevention method described in JIS L 1920, and the intrusion prevention rate was calculated according to the following formula. Invasion prevention rate (%) = [Number of invaded mites in untreated area - Number of invaded mites in treated area] / Number of invaded mites in untreated area x 100

[0036] As a result of the test, it was found that when the above-mentioned fragrance composition for repelling house dust mites was used in a paper diaper, the intrusion prevention rate against house dust mites was 90% or more. In addition, the odor caused by the fragrance for repelling house dust mites was hardly noticeable. [Industrial Applicability]

[0037] The absorbent article of the present invention can be used as a diaper for humans, a sheet for humans, a diaper for pets, a floor covering sheet for pets, a toilet sheet for pets, or the like.

Claims

1. An absorbent article comprising a fragrance composition for repelling house dust mites and a water-absorbent polymer, The fragrance composition for repelling indoor dust mites comprises: tricyclodecenyl propionate, 3-methyl-5-phenyl-1-pentanol or benzyl benzoate, An absorbent article comprising:

2. The fragrance composition for repelling house dust mites comprises tricyclodecenyl propionate, Benzyl benzoate, 2. The absorbent article of claim 1, comprising:

3. 3. The absorbent article according to claim 1, wherein the fragrance composition for repelling house dust mites is one or more kinds selected from the group consisting of synthetic fragrances, natural fragrances, and essential oils.

4. 4. The absorbent article according to claim 1, which is configured as a diaper for humans, a sheet for humans, a diaper for pets, a floor covering sheet for pets, or a toilet sheet for pets.

5. 5. The absorbent article according to claim 4, characterized in that it is configured as a diaper or a sheet for humans.

6. An absorbent article comprising a fragrance composition for repelling house dust mites and a water-absorbent polymer, The fragrance composition for repelling indoor dust mites comprises: tricyclodecenyl propionate, 3-methyl-5-phenyl-1-pentanol or benzyl benzoate, Including, An absorbent article having an intrusion prevention rate of 85% or more in a mite repellent efficacy test carried out in accordance with the intrusion prevention method described in JIS L 1920.

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