JP2001095908A - Aged body odor capturing filter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a filter capable of efficiently and firmly capturing substances causing aged body odor. SOLUTION: This aging odor capturing filter inclucles ethanolamine supported by a carrier.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an aging odor trapping filter, and more particularly to an improvement in an aging adsorption mechanism.

[0002]

2. Description of the Related Art Body odors can be broadly classified into "odors of various parts of the body" such as bad breath, foot odor, axillary odor, and scalp odor, and "small odors generated from the trunk". Of these, there is much research on the smell of each part of the body,
Various countermeasures have been devised.

[0003] On the other hand, the odor emitted from the latter trunk has not yet been sufficiently studied, and an appropriate countermeasure method remains insufficient. By the way, recently, "being odorless" is preferred and "smelling" tends to be disliked. For example, "aging odor" observed after middle-aged people is one of the odors that are particularly disliked. It has been clarified by the present inventors that unsaturated aldehydes such as octenal and nonenal are deeply involved in the causative substance of this aging odor.

[0004]

However, it has been strongly desired to suppress the generation of the aging odor itself and to specifically and firmly capture the aging-causing substance. The present invention has been made in view of the above-mentioned problems of the related art, and an object of the present invention is to provide a filter capable of efficiently and firmly capturing a substance causing an aging odor.

[0005]

Means for Solving the Problems As a result of intensive studies conducted by the present inventors to achieve the above object, the present inventors have found that ethanolamine has a particularly excellent effect of capturing an aging odor-causing substance. It was completed. That is, the age-related odor capture filter according to the present invention is characterized in that ethanolamine is supported on a carrier. Here, ethanolamine is a concept including monoethanolamine, diethanolamine, triethanolamine and the like.

In the above filter, it is preferable that the ethanolamine is diethanolamine. In the filter, ethanolamine is supported on a porous carrier, and the amount of the supported ethanolamine is preferably 2 to 40 parts by weight based on 100 parts by weight of the porous carrier. Further, in the filter, the porous carrier is preferably activated carbon. In the filter, the porous carrier is preferably a treated fiber.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below. The present inventors have studied a substance that efficiently captures unsaturated aldehydes, which is a substance causing aging odor, and is highly safe for the human body. It was found that there was a saturated aldehyde scavenging action.

This finding is based on the following test results.
Good. In addition, in the following tests, the following
The one having the composition was used.Aging odor solution composition  Dibutylhydroxytoluene 1.0% by weight Heptanoic acid 10.0 Octanoic acid 10.0 Triethyl citrate containing 1% of nonenal 15.0 Triethyl citrate containing 1% of octenal 2.5 Triethyl citrate 61.5

First, the present inventors conducted the following tests on nonenal and octenal, which are substances causing aging odor. The test was performed as follows. First, for 2 pieces of 2 cm square filter paper, 100 μl of the aging odor solution
On the other hand, 100 μl of the test substance is impregnated, and the mixture is placed in a 225 round bottle and left at room temperature for one week. And the deodorizing effect of the aging odor was sensuously compared.

The evaluation criteria are as follows: A: There is a considerable deodorizing effect. ：: Deodorizing effect. Δ: Slight deodorant effect. X: Almost no effect. The results are shown in Table 1 below.

[0011]

[Table 1]1 2 3 4 Aging odor solution (μl) 100 100 100 100  Triethanolamine 0 100 0 0 Hetaine lauryldimethylaminoacetate 0 0 100 0 N-coconut fatty acid amyl-N-carboxymethyl- 0 0 0 100Aqueous solution of sodium N-human peroxyethyl ethylenediamine 1 week after evaluation × △ × ×

[0012] Triethanolamine, betaine lauryl dimethylaminoacetate (DEHYTON AB3
0; manufactured by HENKEL), N-coconut fatty acid amyl-N
Undiluted carboxymethyl-N-hydroxyethylethylenediamine sodium (NIKKOLAM-101; manufactured by Nikko Chemical Co., Ltd.) was used.

As is clear from the results shown in Table 1, the aging odor (a mixture of octenal and nonenal) is reduced by quaternary ammonium (lauryl dimethylamino betaine).
Or N-coconut oil fatty acid amyl-N-carboxymethyl-
N-hydroxyethylethylenediamine-sodium hardly exerts a deodorizing effect. However, triethanolamine is not so strong but has a deodorizing effect. Thus, the present inventors have studied the deodorizing effect of ethanolamine on the aging odor.

[0014]

[Table 2]5 6 7 8 9 10 11  Aging solution 100 0 100 0 100 0 100 Triethanolamine 0 100 100 0 0 0 0 Diethanolamine 0 0 0 100 100 0 0Monoethanolamine 0 0 0 0 0 100 100 1 week after evaluation × − △ − ◎ − ○

From Table 2, it can be seen that among ethanolamines, especially diethanolamine has a high odor-deodorizing effect on aging. Monoethanolamine also showed a clear deodorant effect, but diethanolamine is particularly effective as a deodorant because monoethanolamine itself has a pungent odor.

[0016]Carrier  Making the ethanolamine exhibit an aging odor capturing function
For this purpose, it is necessary to carry the carrier on a carrier, especially a porous carrier.
You. In this case, ethanol was added to 100 parts by weight of the porous carrier.
It is desirable that the amount of luamine be 2 parts by weight or more. Etano
If the amine content is less than 2 parts by weight, the effect as a filter
The fruit duration is short and not practical. Also, conversely,
If the amount of ethanolamine impregnated exceeds 40 parts by weight,
Since the effect of the porous carrier alone becomes low,
Is preferable.

Further, the porous carrier according to the present invention will be described below. As the porous carrier, activated carbon, zeolite, activated alumina, silica, silica gel, diatomaceous earth, carbon fiber and the like can be appropriately used. Many of these porous carriers themselves have deodorizing performance. In the present invention, in consideration of removal of odor components other than the unsaturated aldehyde, a porous carrier itself having a deodorizing performance is preferable. In particular, activated carbon is particularly preferable as the porous carrier in the present invention as having a performance of removing many odor components other than the unsaturated aldehyde.

Activated carbon particularly preferably used here has a large surface area of usually several hundred m ² or more per gram and can be used in a wide range as long as it is a carbon material showing high adsorptivity. As the raw material of the activated carbon, a carbide such as coconut shell or wood or coal is usually used, but any material may be used. The activation method may be one obtained by steam or carbon dioxide at a high temperature or by any of zinc chloride, phosphoric acid, concentrated sulfuric acid treatment and the like.

The effect of any of crushed charcoal, granulated charcoal or granulated charcoal can be recognized, but a sheet-shaped adsorption layer to which granulated charcoal or activated carbon is attached is convenient for handling such as pressure loss and replacement. Granulated coal is added to 100 parts of carbon material according to the usual method.
It is prepared by adding 0 to 60 parts of petroleum pitch or coal tar or the like as a binder and activating after mixing and molding.

The shape of the porous carrier may be granular, spherical,
Pellets, powders, etc., according to the usage environment and conditions,
Various shapes are selected. When a powdery porous carrier is used, a monolithic deodorizing filter of a honeycomb or a sheet can be obtained by adding an organic or inorganic binder. This deodorizing filter can be conveniently and conveniently arranged in an air purifier in a room or in a vehicle, or in a vent, and has many advantages in use such as easy replacement and maintenance. In addition, the present filter can be attached to a porous substrate molded into an arbitrary shape according to the purpose. As the porous substrate, a porous synthetic resin, a polyurethane foam, a nonwoven fabric,
A honeycomb structure (of ceramics, metal, paper, resin, or the like), a loop-shaped laminate, or the like is used.

Further, the carrier forms the fiber into a sheet,
Alternatively, by dipping or spraying ethanolamine on paper, nonwoven fabric or plastic foam, an age-related odor control filter for an air purifier can be obtained. In this case, the effect can be maintained for a long time by spraying the sheet periodically.

It is also preferable to bond the ethanolamine-supported powder to a plastic foam or the like via an adhesive. In other words, when a mixture of ethanolamine-supported powder and an adhesive is sprayed or printed by a screen printing method or a roll coater, a curable resin and / or a natural resin soluble in an organic solvent is contained as the adhesive. It is preferable to use an aqueous solution type adhesive or an organic solvent type adhesive, and it is more preferable to use a cross-linking agent in combination. As the aqueous solution type adhesive, an emulsion type adhesive in which a curing agent is used in combination with a crosslinking agent is preferable. Further, as the organic solvent type adhesive, one obtained by dissolving a natural resin soluble in an organic solvent in an organic solvent is preferable. Examples of the curable resin include an acrylate resin, a polyurethane resin, an epoxy resin, and a melamine resin. Examples of the organic resin-soluble natural resin include shellac resin, copal rubber, dammar rubber, and the like. Examples of the crosslinking agent include an isocyanate-based crosslinking agent, an aziridine-based crosslinking agent, an epoxy-based resin, and a melamine-based resin. When a curing agent is used in combination with a crosslinking agent and an epoxy resin is used as the curing resin, a crosslinking agent other than the epoxy resin is used as the crosslinking agent.

When the powder is adhered to the filter substrate using these adhesives, the powder is effectively prevented from detaching from the substrate even when used in a humid environment. A curable resin or a resin obtained by using a cross-linking agent in combination with the curable resin can be used again after washing the used filter.

The amount of powder adhered to the sheet-like substrate is 1 to 10
It is preferably 0 g / m ² , particularly preferably ² to 25 g / m ² . 1g
If it is less than / m ² , the removal of aging odor tends to be insufficient, and 1
If it exceeds 00 g / m ² , uniform adhesion to the substrate becomes difficult, and air permeability tends to be impaired. The present deodorizing filter can be used for an air filter such as an air purifier, an air conditioner, a vacuum cleaner, a fan heater, and a dehumidifier.

Further, ethanolamine as an aging odor suppressant according to the present invention can be supported on fibers to be used as an aging odor capture filter. That is, ethanolamine and a composition comprising an antibacterial agent or the like as it is, or a method in which the composition is supported on a porous powder such as silica gel and kneaded with a fiber material, or ethanolamine and an antibacterial agent or the like as necessary The fibers can be adsorbed by dipping the fibers in a liquid containing them, or by spraying these liquids onto the fibers. It is also preferable to use a water-soluble resin or the like as a fixing agent.

As the fiber material used for the deodorant fiber according to the present invention, for example, synthetic or semi-synthetic fiber material capable of melt spinning, dry spinning and wet spinning is preferable, and polyester, nylon, acetate, acrylic and the like are particularly preferable. Acrylic and acetate are particularly excellent in surface adsorptivity.

In the case where the fibers are supported in the fibers by kneading as described above, a predetermined amount of ethanolamine or a powder thereof is mixed with a fiber resin and spun. Similarly, in dry spinning and wet spinning, a predetermined amount of ethanolamine or its supported powder is dispersed in any of the fiber starting materials, and spinning is performed by a conventional method.

[0028]Antibacterial agent  In the filter according to the present invention, in addition to the essential components,
In addition, the components in sebum are converted to palm
Skin resident that converts to higher unsaturated fatty acids such as toleic acid
Fungi, such as Staphylococcus epidamidis (Stap
hyrococcus epidermidis), Corynebacterium mi
Nytissimum (Corynebacterium minutissimum),
Malassezia furfur, especially
Staphylococcus epidamidis activity can be suppressed
It is preferable to use an antibacterial agent in combination.

Examples of the antibacterial agent include trichlorocarbanilide, benzalkonium chloride, benzethonium chloride, halocarban, chlorhexidine chloride, dihydrofarnesol and the like. In addition, the dihydrofarnesol is known as an antibacterial fragrance. However, other fragrances other than the dihydrofarnesol can also coexist in the filter in order to mask or harmonize the leaked odor.

[0030]Masking Harmonage Fragrance  In addition, together with or with the aging odor capture filter
Aging masking or harmony fragrance near
It is preferred to volatilize. Aging odor masking ingredients and
For example, one or more selected from the following group A
The above compounds or essential oils can be exemplified. Group A: Almohaz oil, Virgil oil, Galvanum oil, Zera
Oil, spearmint oil, ylang-ylang oil, cardamo
Oil, elemi oil, lavender oil, peppermint oil, nuts
Meg oil, chamomile oil, eucalyptus oil, rosemary
Oil, allyl amyl glycolate, 1,1-dimethoxy-
2-phenylethane, 2,4-dimethyl-4-phenyl
Tetrahydrofuran, dimethyltetrahydrobenzal
Dehyde, 2,6-dimethyl-7-octen-2-o
1,2-diethoxy-3,7-dimethyl-2,6-
Octadiene, phenylacetaldehyde, rose oki
Side and ethyl-2-methylpentanoate.

Of these age-related odor masking components, those having particularly excellent masking effects include almoaz oil,
Galvanum oil, geranium oil, spearmint oil, ylang ylang oil, cardamom oil, elemi oil, lavender oil, peppermint oil, camomil oil, eucalyptus oil, rosemary oil, allyl amyl glycolate, dimethyltetrahydrobenzaldehyde, 2,6-dimethyl- Examples include 7-octen-2-ol, 1,2-diethoxy-3,7-dimethyl-2,6-octadiene, phenylacetaldehyde, rose oxide or ethyl-2-methylpentanoate.

The aging harmony component may be, for example, one or more compounds selected from the following group B or essential oils. Group B: lavandin oil, lemon oil, lime oil, orange oil, petitgren oil, bergamot oil, clary sage oil, coriander oil, cypress oil, jasmine absolute, rose oil, rose absolute, 1- (2,
6,6-trimethyl-1,3-cyclohexadiene-1
Yl) -2-buten-1-one, ethylvanillin, 2,
6-dimethyl-2-octenol and 3,7-dimethyl-
A mixture with 2-octenol, tertiary butylcyclohexyl acetate, anisyl acetate, allyl cyclohexyloxy acetate, ethyllinanol, eugenol, coumarin, ethyl acetoacetate, 4-phenyl-2,4,6-trimethyl-1,3 -Dioxane, ethyl acetoacetate ethylene glycol ketal, 4
-Methylene-3,5,6,6-tetramethyl-2-heptanone, ethyltetrahydrosafranate, geranylnitrile, cis-3-hexen-1-ol, cis-3-
Hexenyl acetate, cis-3-hexenylmethyl carbonate, 2,6-dimethyl-5-heptene-1-al, 4- (tricyclo [5,2,1,02,6] decylidene-8-butanal, 5- (2 , 2,3-Trimethyl-3-cyclopentenyl) -3-methylpentane-2
-Ol, p-tert-butyl-α-methylhydrocinnamic aldehyde, ethyl [5,2,1,02,6] tricyclodecanecarboxylate, geraniol, citronellol and citral.

Of these aging harmony components, those which are particularly excellent in harmony effect of aging odor include lavandin oil, lemon oil, lime oil, orange oil,
Petit glen oil, bergamot oil, cypress oil, jasmine absolute, rose oil, rose absolute,
1- (2,6,6-trimethyl-1,3-cyclohexadien-1-yl) -2-buten-1-one, ethylvanillin, 2,6-dimethyl-2-octenol and 3,7-
A mixture with dimethyl-2-octenol, allylcyclohexyloxyacetate, eugenol, 4-phenyl-2,4,6-trimethyl-1,3-dioxane,
-Methylene-3,5,6,6-tetramethyl-2-heptanone, ethyltetrahydrosafranate, cis-3-
Hexen-1-ol, cis-3-hexenyl acetate, 4- (tricyclo [5,2,1,02,6] decylidene-8-butanal, p-tert-butyl-α-methylhydrocinnamic aldehyde, ethyl [5,2,1,
02,6] tricyclodecanecarboxylate, geraniol or citronellol.

When the aging masking agent and the harmonic component are combined and compounded, the proportion of the component is as follows:
Aging odor masking component / aging odor harmonage component = 1/99 to 80/20 by weight, preferably 3/97 to 60/40, and more preferably 3/97 to 60/40. It is highly preferred that it be in the range of ~ 45/55. In addition, when the mixing ratio of one component is excessive, the effect of the component tends to appear on the front side, and it tends to be difficult to exert a desired synergistic effect of suppressing the age-related odor.

[0035]Other ingredients  Also, various components such as the above-mentioned ethanolamine are evenly spread on a carrier.
Anionic surfactant, cation
Surfactants, amphoteric surfactants; lipophilic nonionic surfactants
Surfactants such as surfactants and hydrophilic nonionic surfactants.
Can be combined. Also, improve and maintain the deodorizing function
A sequestering agent, neutralizer, pH adjuster, etc.
Can be combined.

[0036]

EXAMPLES Hereinafter, more specific examples of the present invention will be described.
All exhibited excellent aging odor control effects.Example 1 Aging odor capture activated carbon  Activated carbon prepared from coconut shell is thoroughly washed with water and dried.
After that, diethanolamine aqueous solution
10% activated charcoal, dried at 60 ° C to capture aging odor
Activated carbon was prepared.

[0037]Example 2 Deodorizing filter  Powdered activated carbon and diethanolamine in a ratio of 5: 1
Mix, add an organic binder and dilute with water.
After immersing the urethane foam in the solution, dry it to remove
Luther was prepared.

[0038]Example 3 Deodorizing filter  Powdered activated carbon and diethanolamine mixed at 5: 1
Then add the organic binder and water and mix well.
Was. This is extruded into a honeycomb monolith
Was.

[0039]Example 4 Spray Composition for Filter  Manufacture of powder Diethanolamine 1% Ascorbic acid 1 Starch 8 Water 90 <Production method> Diethanolamine, ascorbic acid,
Dissolve and disperse the starch sufficiently in water and spray this solution
It was made into fine granules by drying and dried at 90 ° C. This grain
The fibrous composition is made into a 0.5% aqueous solution to form a fibrous filter.
Spray and dry as needed.

[0040]

As described above, in the age-related odor trapping filter according to the present invention, the unsaturated aldehyde which is a main component of the age-related odor is captured by ethanolamine. Extremely effective.

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Shinichiro Haji 1050 Nippa-cho, Kohoku-ku, Yokohama, Kanagawa Prefecture Inside Shiseido Daiichi Research Center Co., Ltd. (72) Inventor Kiyohito Sawano 1-4-1, Nishi-Hachiman, Hiratsuka-shi, Kanagawa No. 11 F-term in Takasago International Corporation (Reference) 4C080 AA04 AA06 BB02 BB04 BB05 CC02 CC12 HH09 JJ03 KK08 LL03 LL10 MM18 NN05 QQ03

Claims (5)

[Claims] An age-related odor capture filter comprising ethanolamine carried on a carrier. 2. The filter according to claim 1, wherein the ethanolamine is diethanolamine. 3. The filter according to claim 1, wherein the ethanolamine is supported on a porous carrier,
The loading amount is 2 to 100 parts by weight of the porous carrier.
An aging odor capture filter characterized by being 40 parts by weight. 4. The filter according to claim 1, wherein the porous carrier is activated carbon. 5. The filter according to any one of claims 1 to 3, wherein the porous carrier is a fiber-treated material, and the filter is an aging odor suppressing aging filter.