JPH04174674A - Method and device for deodorization - Google Patents

Abstract

PURPOSE:To enable quick safe deodorization of the air by dilute liquid extracted from a plant to specified dilution or less in water and gasifying the diluted liquid by the use of a gasification generating member to diffuse the gasified diluted liquid in the air containing a stinking component. CONSTITUTION:A tank 2 in a gasifying device is filled with deodorizing liquid 3 which is sent through the lower portion of the tank 2 to a liquid reservoir 5 in the lower portion of the device to which a supersonic vibrator 4 is mounted. When the supersonic vibrator 4 is vibrated, a portion of deodorizing liquid 3 is gasified to form deodorizing gas 6. Air is sent from an air intake port 8 of the device into a receiving chamber 9 by the use of a fan 7 and the deodorizing gas 6 in the receiving chamber 9 is discharged from a deodorizing gas outlet 10 into the air. Liquid extracted from a plant is diluted by the use of water to 30% or less, preferably 10% or less and the most preferably 5% or less of dilution and the diluted liquid is vibrated by the use of a vibrator having preferably 1.6-2.6MHz of supersonic frequency to effective gasify the diluted liquid and efficiently diffuse it in the air by the use of the fan or the like. Thus, the gasified liquid acts a stinking component in the air to deodorize the air.

Description

[Detailed Description of the Invention] [Table of Contents] Overview Field of Industrial Application Conventional Technology Problems to be Solved by the Invention Means for Solving the Problems Examples Effects of the Invention [Summary A deodorizing method that quickly and safely deodorizes odors in the air, in which the vaporized substance is diluted in water, vaporized using a vaporizer, and optionally diffused into the air using a blower. For the purpose of providing a method, an extract from a plant is added to water at a concentration of not more than 30%, preferably 10%.
Hereinafter, the extract from the above plant is most preferably diluted to 5% or less, vaporized using an ultrasonic vibrator, and diffused into the air containing odor components; or the extract from the plant is diluted in water to 30% or less, preferably 10% or less, most preferably 5% or less. A tank filled with the configured deodorizing liquid, a spray member that atomizes the deodorizing liquid filled in the tank, a storage chamber that stores the deodorizing gas in the atomized state, and a deodorizer in the storage chamber. a blower that sends odor gas into the air; or, the extract from the plant is diluted in water to 30% or less, preferably 10% or less, and most preferably 5% or less. A tank filled with the configured deodorizing liquid, a spray member that atomizes the deodorizing liquid filled in the tank, a storage chamber that stores the deodorizing gas in the atomized state, and a deodorizer in the storage chamber. a blower that sends odor gas into the air; an odor sensing means that detects an odor value that requires deodorization and an odor value that does not require deodorization; and an odor sensing means that detects an odor value that requires deodorization. and a control means for activating the spraying member when the odor value does not require deodorization, and for stopping the spraying member when an odor value that does not require deodorization is detected.

[Industrial Application Field] The present invention involves diluting an extract from a plant with water, vaporizing it using a vaporizer such as an ultrasonic vibrator, and optionally releasing the vapor into the air using a blower. This relates to a method of deodorizing by diffusion.

[Prior Art] Currently, methods based on adsorption using porous materials such as activated carbon are widely used as deodorizing or deodorizing methods used industrially.

In addition, as another method, as described in Patent Application Publication No. 25530 of 1985, air containing odor components is passed through a substrate containing soil bacteria, and the odor components are absorbed by the microorganisms. A method has been proposed.

However, in these deodorizing methods, it is essential to bring the odor components into contact with a deodorizing material to which they are fixed, and in order to quickly deodorize the air containing the odor components,
Either the odor must be forced to circulate through the substrate containing the deodorizing material, or it may take a long time to deodorize.

In addition, as another method, deodorization with fragrances is widely used, and this is the so-called masking method.In this case, a blend of fragrances that develop a fairly strong fragrance is used. has been done.

However, this method acts on the olfactory sense of the nose, making people unable to perceive bad odors, and is not essentially a so-called deodorizing method that removes odor components.

On the other hand, extracts from plants such as bamboo and tea are said to have a deodorizing effect that is different from adsorption or masking, but the details of this mechanism are still unclear.

It is also generally said that essential oils of plants have similar deodorizing effects.

It is believed that the deodorizing effect of these plant extracts is due to physical absorption into droplet particles (Konosuke Nishida et al., ``Deodorization/Deodorization Technology and Odor Mechanisms''). ” Sponsored by Techno System Co., Ltd., October 1990
April 4th).

Therefore, the main deodorizing method used industrially is a one-type scrubber, in which a liquid containing deodorizing liquid is sprayed from a nozzle into a limited enclosure in the scrubber using a pump.
A method is used to pass odor components through it.

For civilian use, volatile solvents such as fluorocarbon solvents,
A method of locally deodorizing is by spraying a solution of a deodorant mixed with various fragrances and lower alcohol using a small sprayer.

However, in this method, if a volatile organic solvent is used as the solvent, there is a risk of ignition, and the use of fluorocarbon-based solvents causes environmental problems.

When water is used as a solvent, it is safe, but it has the disadvantage that the heat of vaporization of water is large and it does not volatilize well, making it difficult to put it into practical use.

[Problems to be Solved by the Invention] The deodorizing method according to the present invention has been made to solve the above-mentioned conventional problems, and provides a deodorizing method and a deodorizing method for quickly and safely deodorizing odors in the air. The purpose is to provide an odor device.

[Means for Solving the Problems] In the course of research aimed at elucidating the deodorizing mechanism of liquids extracted from various plants, the present inventor surprisingly found that extracts from plants were extracted in the gas phase. We obtained data suggesting that some kind of reaction was occurring, and discovered that by efficiently distributing plant extracts in the air, extremely powerful deodorization can be achieved, and we have arrived at the present invention.

That is, the present invention dissolves a liquid extracted from a plant in water, vaporizes this water diluted liquid using, for example, an ultrasonic vibrator that is one of the vaporizers, and optionally distributes it in the air using a blower or the like. The present invention relates to a deodorizing method characterized by:

Traditionally, deodorization using plant essential oils has been thought to be mainly through physical absorption into droplets, so the mainstream has been to commercialize products that take absorption or adsorption into consideration. It was not expected that the plant extracts produced by this method would be able to deodorize odor components so strongly.

As a result of extensive studies, the present inventor has found that a solution prepared by diluting a plant extract with water to a concentration of 30% or less, preferably 10% or less, most preferably 5% or less, is 1.6
By vibrating using a vibrator with an ultrasonic frequency of ~2.6 MHz, the diluted liquid is effectively vaporized, and by using a blower, etc., it is efficiently diffused into the air, and it acts on odor components in the air. He invented a method to make it odorless.

Here, in order to efficiently vaporize the extract from plants, it is generally known that most plant extracts have large molecular weights of 200 or more, and such molecules must be released into the air. It was thought that it would be impossible to volatilize it.

However, it was surprising to find that by diluting a plant extract with such a large molecular weight in water and vibrating an ultrasonic transducer therein, the plant extract could be efficiently vaporized together with water.

As a result of repeated studies, it was found that at high concentrations, it hardly evaporates and only visible particles are emitted, and as a result, good diffusion into the air could not be obtained.

On the other hand, if the degree of dilution in water is lowered to 30% or less, preferably 10% or less, and most preferably 5% or less, a good fog can be obtained, and the plant extract in the aqueous solution can be efficiently dispersed into the air. found that it spreads.

In addition, as a result of repeated studies on extracts from plants that have deodorizing effects, we have found that extracts from seed plants such as pine, cedar, cypress, oak, tea, and bamboo have some degree of deodorizing effect. In particular, it has been found that a liquid extracted from a mixture in which specific microorganisms are propagated on the above-mentioned seed plants has a particularly nurturing and deodorizing effect.

Extracts from various plants are used as extracts from plants used in the present invention, and extracts from seed plants such as pine, cedar, and cypress are particularly well used, but extracts from other plants, such as other Extracts from leaves, stems, stems, seeds, roots, etc. of gymnosperms, angiosperms, and fern plants are also used.

In addition, Pericon [a sp.

Penicillium sp, Paecil
omyces sp.

Bacillus sp, Li5teria sp
,, 5tylococcus sp.

It has been found that a liquid extracted from a mixture in which one or more microorganisms selected from the group consisting of Cory nebacterium sp., are grown has a good deodorizing effect.

In addition to the above-mentioned combinations, other microorganisms can be used in the present invention, and other microorganisms can also be used as long as they do not cause bad odor to plants.

In the deodorizing method of the present invention, it is preferable to use a liquid extracted from a plant alone diluted with water, but these extracts themselves often have some solidification depth, and this It is also possible to mix in some fragrance for the purpose of neutralizing odors, and it is also possible to mix in some amount of safe solvents such as alcohols.

Further, FIG. 1 shows a vaporizer according to the present invention, in which an extract from a plant is diluted in water to 30% or less, preferably 10% or less, and most preferably 5% or less. A tank 2 filled with the configured deodorizing liquid 3, a vaporization generating member 1 that sprays the deodorizing liquid 3 filled in the tank 2, and a storage that stores the deodorizing gas 6 in the sprayed state. chamber 9, and a blower 7 that sends out the deodorizing gas 6 in the storage chamber e into the air.
and 30% or less, preferably 1% or less of the extract from the plant in water.
A tank 2 filled with a deodorizing liquid 3 diluted to 0% or less, most preferably 5% or less, and a vaporization generating member 1 that sprays the deodorizing liquid 3 filled in the tank 2. , a storage chamber 9 that stores the deodorizing gas 6 in a sprayed state, and a blower 7 that sends out the deodorizing gas 6 in the storage chamber 9 into the air.
and an odor sensing means 20 that senses an odor value that requires deodorization and an odor value that does not require deodorization, and when the odor sensing means 20 senses an odor value that requires deodorization, the vaporization generation member 1 and a control means 21 that stops the vaporizer when an odor value that does not require deodorization is detected.

[Examples] Below, examples of the present invention will be described in more detail.

Example-1 Fresh cedar sawdust 4 K g N Cypress sawdust 3 K g
A mixture of 3 kg of red pine sawdust and 3 kg of red pine sawdust was placed in a cotton bowl and squeezed to obtain 580 g of yellow liquid.

Distill this (maximum temperature and vacuum degree 300℃, 10Hg)
480 g of pale yellow liquid was obtained.

When the molecular weight distribution was measured by high-performance liquid chromatography, it was found that it was a mixture of many compounds having a maximum molecular weight at 200.

Example-2 10 kg of basil (including roots) was ground, put into a cotton container, and squeezed to obtain 68 liters of a greenish-brown liquid.

This was distilled (maximum temperature and reduced pressure 300℃, 10mmH)
g) to obtain 500 g of pale yellow liquid.

When the molecular weight distribution was measured by high performance liquid chromatography, it was found that it was a mixture of many compounds with a maximum molecular weight of 220.

Example-3 A mixture of 4 kg of cedar sawdust, 3 kg of cypress sawdust, and 3 kg of red pine sawdust was prepared at 10100X100X8.
0 fermentation bed and on top of it, Periconia sp., Penicilliu.
msp,.

Paecilomyces sp., Bacillus
s sp,.

Li5teriasp, 5taphylococcus
cs sp,.

10 g of a mixed microorganism inoculum consisting of Cory nebacterium sp. was sprinkled, and 1 liter of a 10% glucose aqueous solution was sprinkled.

This aIWX floor at 25℃! It was placed in the B fermentation chamber and microorganisms were grown for 3 months.

The obtained mixture was placed in a cotton cloth bag and squeezed to obtain a brown liquid 4, IK&', which had a slight odor similar to that of apple.

This was distilled (maximum temperature and reduced pressure 300 °C, 10 mH
g) 3.80Kg of pale yellow liquid was obtained.

Molecules with high performance liquid chromatography! As a result of measuring the distribution and comparing it using polyethylene glycol as a quasi-substance, it was found that it is a mixture of many compounds that have a maximum molecular weight of 270.

Example 4 4.4 kg of a reddish brown extract was obtained in the same manner as in Example 1 using 8 kg of the sawdust mixture used in Example 1 and 2 kg of ground cedar leaves.

This was distilled (maximum temperature and reduced pressure 300℃, 10mHg
) to obtain 3.9Kg of a yellow solution.

When the molecular weight distribution was measured by high performance liquid chromatography, it was found that it was a mixture of many compounds with a maximum molecular weight of 250.

Example-5 Example! A brown extract was prepared in the same manner as in Example 1 using 8 kg of the sawdust mixture used in 4. and 2 kg of ground basil (including roots). Obtained 3Kg.

This was distilled (maximum temperature and reduced pressure 300℃, 10mHg
) L, 3.9Kg of yellow solution was obtained.

When the molecular weight distribution was measured by high-performance liquid chromatography, it was found that it was a mixture of many compounds having a maximum molecular weight at 250.

Deodorization test using garlic in Example 6) 5 g of crushed garlic was placed in a bedding dish with a diameter of 10 cm, and placed in a sealed room measuring 360 cm in length and width and 270 cm in height.

1 g of each extraction method from the plants obtained in Examples 1 to 5 was
00 milliliters of distilled water, and the liquid was dissolved in a vaporizer (ultrasonic frequency:
1.80-1.75 mHz) for 5 minutes in the room.

After 30 minutes had passed, the residual odor intensity was measured by the senses of six panelists.

Odor intensity is displayed according to the evaluation method below adopted by the "Study Group on Offensive Odor Determination Standards Commissioned by the Ministry of Health and Welfare," and the values are shown as the average value of six panelists.

0 Muoku 1 Smell that can barely be felt (detection threshold) 2 Smell that is easily felt (recognition threshold) 3 Smell that is clearly felt 4 Smell that is strong 5 Smell that is unbearably strong Note that as a control, distilled water alone was used in the same apparatus. The remaining odor intensity when sprayed with commercially available activated carbon (100
~200 mesh: Kuraray Coal) was placed on a plate with a diameter of 30 cm, and the remaining odor intensity was evaluated in the same manner as a control after being placed in the room for 30 minutes.

The results are shown in Table 1.

Table 1 shows deodorizing test using garlic) Sensory test results (average value of 6 people) Sample from Example 1 1.2 Sample from Example 2 1.9 Sample from Example 3
0.8 Sample from Example 4 0.9
Sample from Example 5 0.9 Control 1 (distilled water alone) 3.9 2 (activated carbon) 3.5 Example 7 (deodorizing test using acetaldehyde) 0.1 g of acetaldehyde instead of garlic The test was conducted in the same manner as in Example 6 except that .

The test results are shown in Table 2.

Table 2 (Deodorizing test using acetaldehyde) Sensory test results (average value of 6 people) Sample from Example 1 1.7 Sample from Example 2 1.8 Sample from Example 3
0.9 Sample from Example 4 0.8 Sample from Example 5 0.8 Control group 1 (distilled water alone) 3.8 2 (activated carbon) 3.7 A vaporization device using a sonic vibrator will be explained based on FIG. 2.

A tank 2 in the vaporizer is filled with a deodorizing liquid 3, and the deodorizing liquid 3 passes through the lower part of the tank 2 and enters a liquid reservoir at the lower part of the device where an ultrasonic vibrator 4 is attached. It has been sent to the 5th.

7 Here, when the ultrasonic vibrator 4 is vibrated, a part of the deodorizing liquid 3 is vaporized and the deodorizing gas 6 is generated.

Air is sent into the storage chamber 9 through the air intake port 8 of the device using the blower 7, and the deodorizing gas 6 in the storage chamber 9 is released into the air through the deodorizing gas outlet 10.

The amount of the deodorizing liquid 3 (deodorizing gas 6) to be released varies depending on the concentration of the deodorizing liquid 3, the type and frequency of the vibrator 4, the amount and speed of air blowing, etc. This is so that it can be adjusted.

Here, the reference numeral 30 indicates an odor sensor, and the odor sensor 8
0 is configured to be able to detect the odor value when the air is so full of odor that it requires deodorization, and the odor value when it does not require deodorization, and when deodorization is required. When the odor value is detected, a signal from the odor sensor 3o is output to the control section 81, and the vaporization generating member 1 is operated by the control section 31 in response to the output signal.

Further, as a result of continuing the deodorizing work, when the air becomes odorless to the extent that deodorizing is not required, the odor value is detected and the operation of the vaporization generating member 1 is automatically stopped by the control unit 31. It is configured like this.

Furthermore, various devices and components such as a humidity sensor, a timer, a display meter for displaying odor values, and an odor sensing buzzer can be attached to the present device.

This makes it possible to provide a deodorizing device with even higher performance.

[Effects of the Invention] As is clear from the results in Tables 1 and 2, the deodorizing method according to the present invention exhibits a significantly superior deodorizing effect compared to the control group. In particular, when a microbiologically produced deodorizing liquid is used, it provides an especially excellent deodorizing effect.

As described above, the deodorizing method of the present invention exhibits an excellent deodorizing effect on various odor components, and is a deodorizing method that can be widely used for industrial and consumer purposes.

[Brief explanation of the drawing]

FIG. 1 is a schematic diagram showing a vaporizer according to the present invention, and FIG. 2 is a schematic diagram showing an embodiment of the vaporizer according to the invention. l... Vaporization generating member 2... Φ tank 3 -... practical liquid 4... fist ultrasonic vibrator 5... e liquid reservoir 6 fist e, practical gas 7... coma blower 8, ee air Intake port 9φ/φ Storage chamber 10... Deodorizing gas outlet 20... Odor sensing means 21... Control means 30... Odor sensor 31... Control unit l Fig. 1

Claims (4)

[Claims] (1) Dilute the extract from the plant with water to 30% or less, preferably 10% or less, most preferably 5% or less, and vaporize the diluted liquid using the vaporization generating member (1). A deodorizing method comprising: diffusing the vaporized diluted liquid into air containing odor components. (2) The deodorizing method according to claim 1, wherein the plant extract is a liquid extracted from a plant in which microorganisms have been propagated. (3) A tank (2) filled with a deodorizing liquid (3) made by diluting a plant extract in water to 30% or less, preferably 10% or less, most preferably 5% or less. ), a vaporization generating member (1) that sprays the deodorizing liquid (3) filled in the tank (2), and a storage chamber (6) that stores the sprayed deodorizing gas (6).
9); and a blower (7) that sends out the deodorizing gas (6) in the storage chamber (9) into the air. (4) A tank (2) filled with a deodorizing liquid (3) composed of a plant extract diluted in water to 30% or less, preferably 10% or less, most preferably 5% or less. ), a vaporization generating member (1) that sprays the deodorizing liquid (3) filled in the tank (2), and a storage chamber (6) that stores the sprayed deodorizing gas (6).
9), a blower (7) that sends the deodorizing gas (6) in the storage room (9) into the air, and an odor sensor that detects odor values that require deodorization and odor values that do not require deodorization. means (20); when the odor sensing means (20) senses an odor value that requires deodorization, the vaporization generating member (1) is actuated; and when the odor sensing means (20) senses an odor value that does not require deodorization; A deodorizing device comprising: a control means (21) for stopping the vaporization generating member (1) at the same time.