JPS60129160A - Method and device for original liquid isolation type spraying - Google Patents

Abstract

PURPOSE:To obtain a large amt. of spraying with less injection gas with a suction type spraying method by using the injection gas for the purpose of increasing the pressure in a hermetically closed original liquid tank. CONSTITUTION:The user directs an injection port 13 to the direction where an original liquid is to be sprayed and pushes a button 14 in the stage of using the spraying device. Then a stop valve is opened by a stem 12 and the injection material in a bomb 9 is fed through a lead-out hole 11 and a vent pipe 19 to the inside 5 of an original liquid tank 1. As a result the pressure in the inside 5 is increased and the original liquid and the gas incorporated in the state of gas in the original liquid are sprayed through a liquid passage pipe 15 from the injection port 13 of the button 14. The button 14 which is an injection member and the lead-out hole 11 of the stem 12 are communicated with each other in this case so that the two roles of pressurizing the original liquid in the original liquid tank and the atomizing and diffusing of the original liquid to be ejected from the liquid passage pipe are performed simultaneously.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a novel bulk solution isolation type spraying method and sprayer.
iru. More specifically, the present invention relates to a spraying method and a sprayer in which the amount of spray n is significantly larger than that of conventional spraying methods even if the amount of injection gas used is the same.

Aerosol products have been widely used as a method for easily spraying undiluted solutions such as insecticides, paints, fire extinguishing fluids, and deodorants. However, aerosol products consist of a concentrate and a propellant.
Since it is housed in two cans, etc., the amount of stock solution that can be stored is naturally limited, and the amount of sprayed n is also small. Furthermore, even if either the stock solution or the propellant runs out, it is impossible to supply them, which are housed under pressure, so there is a drawback that even if one of them remains, it cannot be used.

In order to eliminate such drawbacks, recently the undiluted solution is separated from the propellant and stored in a separate container under normal pressure, and as the gas is ejected, the undiluted solution is sucked up with a venturi nozzle.
An undiluted solution isolation type spraying method (hereinafter referred to as a suction type spraying method) has been proposed, in which the undiluted solution is atomized.

By adopting this method, the amount of spray can be increased by about 3 to 4 times (12 g per 10 seconds) compared to the aerosol product (3-4a per 10 seconds), but depending on the application, it may still be In some cases, the amount of sprayed gas may not be sufficient.With the straddling suction type frosting method, if you try to increase the amount of sprayed gas, the amount of propellant used also increases, so the amount of propellant gas used is smaller than conventional methods, and moreover, it is possible to There is a need for a spraying method and a sprayer that can vary the spray amount.

Therefore, as a result of extensive research in order to meet such demands, the inventor of the present invention has discovered that by sending propellant gas from a propellant gas generator isolated from the stock solution tank into an airtight stock solution tank containing the stock solution, When increasing the pressure in the tank and spraying the stock solution from the other end of the liquid passing means through a liquid passing means having one end opening into the stock solution and the other end opening into the atmosphere, use of a propellant gas. The present invention was completed based on the completely new discovery that even if the amount is the same as that of the suction type, it is possible to spray approximately five times as much.

In the method of the present invention constructed as described above, the propellant gas is not used for siphoning, but rather for increasing the pressure in the closed liquid tank. However, there is a large pressure difference between both ends of the liquid passing means for sending out the C stock solution, and due to such a large pressure difference, the stock solution passes through the liquid passing means at high speed and is sprayed to the outside. Therefore, the amount of undiluted solution (ml) and the amount of straw sprayed within a certain period of time is approximately 5 times that of the above-mentioned suction type spraying method, which is a remarkable effect.

Furthermore, in the method of the present invention, the propellant gas is effectively used without being wasted into the atmosphere, so there is an advantage that the amount of propellant gas used can be significantly reduced.

The present inventor has also invented the following sprayer for direct use in the spraying method of the present invention.

That is, the sprayer of the present invention includes: an airtight raw solution tank having at least a partially openable/closable lid; a propellant gas generator provided separately from the raw solution tank; an outlet hole of the propellant gas generator; A ventilation means that communicates with the inside of the stock solution tank, and a vent that communicates between the inside and outside of the stock solution tank, one end of which opens into the stock solution in the stock solution tank, and the other end of which is provided with a spouting member. It is characterized in that it has a liquid means.

Next, the present invention will be described in detail with reference to the drawings.

Fig. 1 is a partially cutaway front view showing one embodiment of the sprayer of the present invention, Fig. 2 is a sectional view showing another embodiment of the ejection member according to the invention, and Figs. FIG. 6 is a sectional view showing another embodiment of the stock solution tank, and FIG. 6 is a sectional view showing another embodiment of the sprayer of the present invention.

In FIG. 1, (1) is a stock solution tank that is airtight and can withstand internal pressure. The stock solution tank (1) consists of a container (3) having an opening (2) at the top, and a lid (4) that can be opened and closed and airtightly covers the opening (2). The lid (4) is provided with a liquid passage hole ('71) and a ventilation hole (8), which communicate the inside (5) and outside (6) of the stock solution tank (1).

Further, a holding portion (roller) for detachably holding the cylinder (9) is formed on the upper surface of the lid (4).

In addition, when dividing the inside of the stock solution tank (1) into a plurality of rooms by providing a vertical partition wall in the stock solution tank (1), and connecting a branch of the ventilation means to each room and providing a liquid passage means for each room, 2. There is an advantage that more than one kind of medicine can be used and sprayed, or two or more kinds of medicine can be sprayed at the same time.

The cylinder (9) contains a propellant such as liquefied gas or compressed gas and forms a propellant gas generator.

In addition to the lid (4) that covers the upper end of the container (3), the lid (4) can also be used to cover the upper end of the container (3).
) to improve airtightness.

The upper part of the cylinder (9) has an outlet hole (11) that can communicate with the inside of the cylinder, and a stem (1) which is an operating member of a valve (not shown) for opening and closing the outlet hole (11).
2) is provided. A button (14) with a spout (13) is provided at the top of the stem (12). The button (14) constitutes an ejection member.

The button (14) is connected to one end (16) of a liquid passage pipe (which may be a bowse, the same shall apply hereinafter) (15) which is a liquid passage means. The other end (11) side of the liquid passage pipe (15) is inserted into the liquid passage hole (71), and the other end (17) is placed near the bottom (18) of the stock solution tank (1), and It is located in the stock solution (20).

The outlet hole (11) of the stem (12) and the stock solution tank (1)
) is communicated with the ventilation pipe (which may be a hose, the same shall apply hereinafter) (19) as a ventilation means. That is, one end of the ventilation pipe (19) is connected to the stem (12), and the other end opens into the interior (5) of the stock solution tank (1) through the ventilation hole (8).

To use a sprayer configured like soft soil, simply point the nozzle (13) in the direction you want to spray and press the button (
14). As a result, the opening/closing valve opens, and the propellant in the cylinder (9) becomes gaseous and is sent into the interior (51) of the stock solution tank (1) through the ventilation pipe (19).Therefore, the pressure inside (5) increases. The undiluted solution and the injection gas contained in the undiluted solution as a gas pass through the liquid pipe (15) to the nozzle (13) of the button (14).
More sprayed.

In Fig. 1, the button (14), which is a jetting member, and the outlet hole (11) of the stem (12) are in communication, so that the jetted gas is connected to the pressurization in the stock solution tank and the stock solution spouted from the liquid pipe. It performs two roles at the same time: atomization and diffusion. However, the sprayer of the present invention is not limited to such a case; for example, as shown in FIG. 2, the upper end of the stem (12) may be closed.

In this case, the propellant gas is used only for pressurizing the stock tank (1). Further button the ejection member (14)
It may be formed separately from the undiluted solution tank (1) and attached, for example, to the upper part of the stock solution tank (1) as shown in FIG.

In addition, a jetting member having a venturi set of nozzles used in the above-mentioned suction type sprayer may be used, and in that case, the pressurized horn in the stock solution tank and the suction force work together, so the Injection tJ4M can be increased.

In the sprayer shown in FIG. 1, the stock solution and the propellant gas are in direct contact through the liquid surface.

Therefore, some of the injection gas is contained in the raw solution as a gas,
A stock solution containing propellant gas is ejected from the nozzle (13). Therefore, there is an advantage that the spraying can be performed partially smoothly.

In the present invention, either the aerosol method in which gas is generated from a propellant in conventional aerosol products, or another method in which gas is generated without using a propellant, such as a method using a gas generating agent or a pump as described below, can be used. The method is also adopted.

In the present invention, the stock solution, whether in the aerosol method or other methods, includes a stock solution such as an oil, a flux, an emulsion, a wettable powder, etc., such as the contents of a conventional aerosol product with the propellant removed. A liquid with relatively low fluidity, such as a liquid, a paste, a cream, or a foam, can be used as the stock solution. In the case of a stock solution with low fluidity, it is preferable to use a stock solution tank in which the injection gas and the stock solution are separated by a movable partition wall, as shown in FIGS. 3 and 4, as will be described later.

In other words, the undiluted solution referred to in the claims is a fluid or semi-fluid liquid that can be pumped through the liquid passing means, and is a concept that includes the target substance, and spraying is a liquid that can be pumped through the liquid passing means. In addition to love, the concept also includes cases where semi-fluid animals are ejected from a spout.

As the injection gas in the present invention, in the case of the aerosol method, liquefied gases such as chlorofluorocarbons, LP gas, dimedyl ether, nitrogen, and carbon dioxide, and compressed gases such as nitrogen, carbon dioxide, laughing gas, and air are used. be done. Methods other than the aerosol method include gas generated from a gas generating agent and compressed air provided by a pump or compressor.

In other words, the injection gas referred to in the claims is not limited by the cause of its generation, and includes all gases that are pumped into the stock solution tank to increase the pressure inside the stock solution tank, thereby causing the stock solution to be atomized. It is a concept.

The gas generating agent may include, for example, at least one carbonate, an organic acid, an acid salt, and an acidic substance.
Examples include combinations with seeds (for example, military funds and tartaric acid), combinations of organic acids and auxiliaries such as oxidizing agents, etc. The generated gas is preferably one that is harmless to the active ingredients of the stock solution, such as nitrogen or carbon dioxide.

In addition, when employing a propellant gas that is compatible with the stock solution, it is preferable to use a stock solution tank as shown in FIG. 3. In the stock solution tank (1) in Figure 3,
The stock solution (20) is stored in a bellows-type or bellows-type airtight bag (21) with variable volume, and the liquid passage pipe (1
5) is slidably and airtightly inserted into the upper end (22) of the airtight bag (21). If the liquid pipe (15) is slidable relative to the stock solution tank (1), or if the upper end (22) of the airtight bag (21) is fixed to the lid (4) etc., the airtight bag (21) is In cases where the lower end side is expandable and retractable, the liquid pipe (15) and the airtight bag (21) may be fixed together. In these cases, the liquid pipe (15)
It is preferable that the material has stretchability or flexibility. It is preferable to use a magnetic fluid for the sliding contact surfaces of the liquid pipe (15) and the airtight bag (21) instead of a sealing member such as an ordinary O-ring. As a result, airtightness and 11Pi mobility can be achieved simultaneously and effectively.
Wear.

When using a stock solution tank (1) constructed like soft soil, the stock solution and the propellant gas are separated in a sealed bag (21) and do not come into contact with each other.

Therefore, even if the combination U of the stock solution and the propellant gas is compatible, the propellant gas will not dissolve into the stock solution and the stock solution will be sufficiently pressurized.

[Instead of the bellows-type airtight bag (21) as shown in Fig. 3, a partition wall (23) is provided inside the container (3) in a slidable and airtight manner as shown in Fig. 4. Good too.

When using a stock solution tank in which the ejected gas and the stock solution are separated by a movable partition as shown in Figure 3 or 4, if the stock solution is in the form of a paste, cream or foam. However, it is preferable because it ejects smoothly.

The pressure in the stock solution tank in the present invention is not particularly limited, but is, for example, 0.9 to 8.5 ki/c.
J (20°C) is the range that can be used under normal conditions, and especially when
°C) is the appropriate range of use. (In other words, if the pressure inside the stock solution tank is too low, proper spraying may not occur, such as ejecting the stock solution while it is still in liquid form. If the pressure is too high, the stock solution tank will need to be made into a pressure-resistant container.) There is a cost problem.If there is no cost problem, the stock solution tank may be made into a pressure-resistant container and high-pressure gas may be used as the injection gas.

In that case, a high-pressure gas cylinder containing liquefied nitrogen or liquefied carbon dioxide may also be used as the injection gas generator.

Furthermore, when using an air cylinder with a compression pump such as a hand-held type, or a compression pump itself, as the propellant gas generator, the advantage is that since the propellant gas used is air, it is completely harmless to the user and the object to be used. has.

Further, the gas generator may be a container containing the gas generating agent instead of the propellant.

In this case, the container can be used repeatedly by simply replacing the gas generating agent, which is economical.

Note that the injection gas generator referred to in the claims includes not only a cylinder containing a blowing agent, but also the above-mentioned pressure gas cylinder, an air cylinder containing a compression pump, the compression pump itself, and a cylinder containing a gas generating agent. The concept includes anything that can send injection gas into the stock solution tank, such as cylinders.

All the sprayers shown in Figures 1-4 are crude oil tanks (1
) and a propellant gas generator are connected to an external ventilation vibrator (19),
Although they are communicated by a liquid passing vibrator (15), the sprayer of the present invention is not limited thereto. For example, as shown in FIG. 6, the raw liquid tank (1) and the injection gas generator are directly connected It may be something that is currently in use.

In the sprayer shown in FIG. 6, a cylinder (9) of liquefied gas or compressed gas, which is a propellant gas generator, is held upside down on the upper surface of a stock solution tank (1) so as to be movable up and down. Furthermore, a stem (12) for operating a valve (not shown) of the cylinder (9) is attached to the stock solution tank (1).
is fixed or in contact with the top surface of Raw solution tank (1)
A liquid passageway (15a) serving as liquid passage means is integrally provided from the bottom (18) to the upper end of the stock solution tank (1).

Note that (4a) is a stopper that is the lid of the stock solution tank (1),
<10) is a holding part.

To use a sprayer constructed like soft soil, press the lower end (9a) of the cylinder (9) downward, and press the stem (12) downward.
) is pushed into the cylinder (9) side, and the jet gas in the cylinder (9) is sent into the stock solution tank (1) through the hole (19a) which is a ventilation means. As a result, the pressure inside the stock solution tank (1) increases, and the stock solution and the injection gas contained in the stock solution as a gas are transferred to the nozzle (13) at the other end of the liquid passageway (15a).
sprayed from.

The sprayer of the present invention is suitable for use in the spraying method of the present invention like soft soil, and also has the following advantages.

In other words, in the sprayer of the present invention, the stock solution tank (1)
Since the container is equipped with a lid (4) that can be opened and closed, the stock solution can be easily replaced. Furthermore, since the stock solution tank (1) and the propellant gas generator are separated from each other, it is easy to configure them so that they can be attached to and detached from each other. Furthermore, when the cylinder is configured to be detachable, when the cylinder is used up, it can be easily replaced with another cylinder.

Next, the effects of the sprayer of the present invention will be explained with reference to Examples.

Example 1 As a stock solution, polyoxyethylene nonyl phenyl ether o, sg6 (ffiM%, the same applies hereinafter), lauric acid jetanolamide 0.5%, butodium pionate 0
．． The sprayer of Example 1 as shown in FIG. 1 was fabricated using a water-based cleaner consisting of 1% water and 98.9% water and dimedyl ether as the propellant gas.

Example 2 Sumithion 5.0% as stock solution, Hymar CX4.5
%, Hymar CX-800, 5%, xylene 90.0
A sprayer of Example 2 as shown in FIG. 1 was manufactured using an emulsion consisting of 50 to 100 times diluted with water and using Freon (F-12>) as the injection gas.

Comparative Example 1 Comparative Example 1 was produced by storing the same stock solution and propellant gas as in Example 1 in a suction type atomizer.

Comparative Example 2 Comparative Example 2 was produced by storing the same stock solution and chanterelle gas as in Example 2 in a suction type atomizer.

Tables 1 and 2 show the results of spraying for 10 seconds using the sprayers of each of the Examples and Comparative Examples, and measuring the amount of sprayed gas and the amount of gas used. The injection amount and gas usage are determined by first measuring the weight of the stock solution tank and gas cylinder, then spraying for 10 seconds, measuring the weight of each tank and cylinder, and then spraying for the next 10 seconds. It was measured by the method. The number of measurements was 10 times for each, and Tables 1 and 2 show the average values at -, respectively. The initial pressure in the cylinder is Example 1 and Comparative Example 1.
In Example 2 and Comparative Example 2, L2 average/aJ is 7 average/aJ.
It was d.

As is clear from the measurement results in Table 1, Table 2, and Table 1, in Example 1, the amount of injection gas used was almost the same as in Comparative Example 1;
The injection amount reached 5 to 6 times that of Comparative Example 1. Also the second
As is clear from the table, in Example 2, the amount of injection gas used was almost the same as in Comparative Example 2, but the injection amount reached about five times that in Comparative Example 2.

Like soft soil, the method and apparatus of the present invention have the remarkable effect of being able to spray a large amount of undiluted solution at once, even though the amount of propellant gas used is small. Therefore, for example, by spraying a large amount of insect pest and rodent repellent in a single space in a closed room, it is possible to easily and within a short period of time control the concentration of the agent throughout the room to a predetermined concentration, that is, to exterminate pests, rodents, etc. Alternatively, the spraying method of the present invention, when used for the same purpose as a fumigation insecticide, can achieve the purpose very easily and in a short time. It has an excellent moisturizing effect.

Furthermore, when the spraying method and sprayer of the present invention use the paint R1, herbicide, etc. as an undiluted solution, the workability of painting, weeding, etc. is significantly improved.

Furthermore, the fire extinguisher has a remarkable fire extinguishing effect because it can spray a large amount of the fire extinguishing method on , air fresheners, cleaners, anti-fog,
Similar to various conventional aerosol products such as household products such as wax and laundry starch, human body products such as hair spray, shaving cream, cologne, and pharmaceuticals, industrial products such as lubricants and rust preventives, and other mountain vehicle supplies. Vines used in the field.

The undiluted solution isolation type spraying method and sprayer of the present invention, like soft soil, have many advantages, and their practical application is
I value is a person who is enthusiastic.

[Brief explanation of drawings]

′? Fig. tS1 is a partially cutaway front view showing one embodiment of the ejection member of the present invention, Fig. 2 is a sectional view showing another embodiment of the ejection member according to the present invention, and Figs. FIG. 6 is a sectional view showing another embodiment of the stock solution tank according to the present invention, and FIG. 6 is a sectional view showing another embodiment of the sprayer of the present invention. (Main symbols in the drawing) (1): Stock solution tank (4): Lid (5): Inside (9): Cylinder (11): Outlet hole (13): Singing port (14): Button (15): Open Liquid pipe (19): Ventilation pipe (20): Raw solution in the stock solution tank Figure 2 VB country No. 4 port Figure 5

Claims (1)

[Scope of Claims] 1. The pressure inside the stock solution tank is increased by feeding a propellant gas into an airtight stock solution tank containing the stock solution from a propellant gas generator isolated from the stock solution tank, and one end is connected to the A stock solution isolation type spraying method, characterized in that the stock solution is sprayed from the other end of the liquid passing means through a liquid passing means that is open into the stock solution and the other end is open to the atmosphere. 2. An airtight stock solution tank having a lid that can be opened and closed at least in part, a propellant gas generator provided separately from the stock solution tank, and an outlet hole of the spray gas generator communicating with the inside of the stock solution tank. and a liquid passing means that communicates the inside and outside of the stock solution tank, one end of which opens into the stock solution in the stock solution tank, and the other end of which is provided with a spouting member. Sprayer. 3. The sprayer according to claim 2, wherein the propellant gas generator is a cylinder containing a propellant. 4. The sprayer according to claim 2, wherein the propellant gas generator is an air cylinder having a compression pump. 5. The sprayer according to claim 2, wherein the injection gas generator contains a gas generating agent.