JP2001180770A - Aerosol atomizer for coating - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an aerosol atomizer for coating in which a detergent or a pesticide or the like can be efficiently injected over a wide range of a porous flat member such as a netted door and the like under its well foaming property as well as defoaming property. SOLUTION: Raw liquid having an amphiphatic substance added to a solution composed of aqueous and/or alcoholic solution containing effective components (isopentane and the like may be added if desired) and atomization agent of liquefied gas (LPG, DME and the like) are combined with each other and injected out of an injection nozzle 40 where an injection nozzle portion 20 with an oval injection port 21 and a chip where a screw groove is formed at its other circumference 40 are combined together. Reference numeral 10 denotes the entire atomizer, reference numeral 1 denotes a button also acting as a cap, reference numeral 2 denotes a fitted portion of a nozzle stem and reference numerals 3, 4 denote a liquid passage.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a spray aerosol sprayer which can effectively spray a cleaning agent or an insect repellent on a porous flat body such as a screen.

[0002]

2. Description of the Related Art Conventionally, a cleaning agent or an insect repellent was sprayed on a porous flat body such as a screen in the form of a mist. The disadvantage was that the undiluted solution was lost and the effect was halved.

[0003]

Therefore, if a cleaning agent or an insect repellent can be sprayed on a porous flat body such as a screen door in a foamy and wide-angle manner, a stock solution containing an active ingredient can be obtained. Is efficiently attached to the porous flat body, and a wide range can be processed in a short time.

[0004] However, it is desirable that the spray liquid be sprayed over a wide area in the form of a foam, and after it adheres to a porous flat body such as a screen door, the foam is immediately defoamed.

[0005]

SUMMARY OF THE INVENTION The present invention combines an injection liquid having a foaming property and a defoaming property and a propellant of a liquefied gas to form an injection nozzle portion having an oblong injection port, and a screw on the outer periphery. An application aerosol injector is characterized in that it is configured to eject from an ejection nozzle in combination with a chip having a groove.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows a first embodiment of an injector 10 in which 1 is a cap which also serves as a push-down button of an aerosol injector, 2 is a fitting portion with a nozzle stem protruding above the aerosol can, Reference numerals 3 and 4 denote injection liquid passages, reference numeral 20 denotes an injection nozzle portion fitted to the front surface of the cap 1, and reference numeral 30 denotes a chip fitted into the injection nozzle portion 20 and combined with the injection nozzle portion 20.

FIG. 2 is an exploded view of the injection nozzle 40. The injection nozzle portion 20 is taken out of the cap 1 and
Further, a chip 30 is taken out from the injection nozzle portion 20. In the figure, reference numeral 5 denotes a concave portion on the front surface of the cap, and an injection nozzle 40 is fitted in the concave portion 5. 3 is a side view of the injection nozzle portion 20, FIG. 4 is a front view of FIG. 3 viewed from the F direction, and FIG. 5 is a rear view of FIG. 3 viewed from the D direction. The injection nozzle portion 20 has an oblong injection port 21 on the front surface, and has a recess 22 into which the tip 30 is fitted.

FIG. 6 is a side view of the chip 30, FIG. 7 is a front view of FIG. 6 viewed from the R direction, and FIG. 8 is a rear view of FIG. 6 viewed from the P direction. Convex part 3
One. (Four in the illustrated example) A vertical groove 32, a screw-shaped groove 33 extending in the axial direction, and a front-end groove 34 are respectively formed between the convex portions 31. Reference numeral 35 denotes a concave portion formed in the chip.

As shown in FIG. 1 and FIG.
Is fitted into the recess 22 of the injection nozzle portion 20,
A screw-shaped injection liquid passage is formed by the screw-shaped groove 33 of the tip 30 and the inner peripheral surface of the concave portion. In use, when the cap 1 serving as a button is pressed down, the jetting liquid reaches the chip 30 from the nozzle stem via the passages 3 and 4, enters the axial groove 33 from the vertical groove 32, and enters the injection nozzle 20. The jet body 20 is advanced while rotating between the inner peripheral surface of the concave portion 22 and the jet body 20 through the groove 34 at the front end, and is jetted at a wide angle from the oblong jet port 21 of the jet body 20.

FIG. 9 is a longitudinal sectional view of a second embodiment of the injector 10, wherein 1 is a cap, 2 is a nozzle stem fitting portion,
Is a liquid passage. In this embodiment, a turning portion 50 on the front surface of the cap 1 is formed, and a concave portion 53 around the turning portion 50 is formed.
The injection nozzle portion 20 is fitted to the nozzle. 10 is a side view showing the ejection nozzle portion 20 taken out, FIG. 11 is a front view of FIG. 10 viewed from the F direction, FIG. 12 is a rear view of FIG. 10 viewed from the D direction, and FIG. 13 is a longitudinal sectional view of FIG. FIG. 14 shows front views of the cap 1 shown in FIG. 9 with the injection nozzle portion 20 removed and viewed from the P direction.

In the drawing, reference numeral 20 denotes an injection nozzle portion;
Denotes an injection port, 22 denotes a concave portion into which the revolving portion 50 fits, and 5 denotes
1 is a turning groove formed on the turning portion 50 in the axial direction;
Reference numeral 2 denotes a swirl groove 51 and an injection port 21 which
Is a vertical groove communicating with Reference numeral 53 denotes a concave portion formed around the turning portion 50, into which the injection nozzle portion 20 is fitted as described above. Passage 3 is formed by recess 4 by passage 4
It is in communication with 3.

In use, when the cap 1 is pushed down, the liquid ejected from the nozzle stem reaches the swirling portion 50 through the passages 3 and 4 and passes through the swirling groove 51 in the axial direction while swirling. Then, it reaches the injection port 21 by the groove and is injected. FIG. 15 is a longitudinal sectional view of a third embodiment of the injector 10, in which an injection nozzle portion 20 is fitted into the front recess 5 of the cap 1. 16 is a side view showing the ejection nozzle portion 20 taken out, FIG. 17 is a front view of FIG. 16 viewed from the F direction, FIG. 18 is a rear view of FIG. 16 viewed from the D direction, and FIG.
Respectively shows a longitudinal sectional view of FIG.

As can be seen from the drawing, a plurality of slits 23 are provided in the injection nozzle portion 20 so as to partially communicate with the injection port 21 and the passage 4. (In the illustrated example, the number of slits is four, but any number may be used.) In FIG. 15, reference numeral 24 denotes a portion where the passage 4 communicates with the slit 23, and reference numeral 25 denotes a portion where the injection port 21 and the slit 23 are connected. Each communicating portion (see FIG. 18) is shown. The jet liquid passing through the passages 3 and 4 is constricted by the communication portion 24, enters the slit 23, and is expanded and jetted.

[0014]

EXAMPLES A solution consisting of an aqueous and / or alcoholic solution containing the active ingredient and an amphipathic substance are called stock solutions.
(Surfactants, hydrophilic solvents, etc. are called amphiphilic substances).
At a distance of 15 cm, such as compatibility of the stock solution with LPG and DME (dimethyl ether) as a propellant in terms of volume percentage ratio (the property of mutual incorporation), the condition of liquid dripping from the injection port after nozzle injection, and the like. The following table shows a comparison of the size of the ejection pattern when the ejection is performed from the nozzle.

In the table, the compatibility and the liquid dripping are indicated by ◎ if the condition is good, ○ if the condition is satisfactory to some extent, and × if not satisfactory. Four examples are shown in which the stock solution and LPG and DME have different solubility percentages. 1 2 3 4 Undiluted solution (% dissolved) 90 90 80 70 LPG (〃) 10 5 10 15 DME (〃) ○ 5 10 15 Compatibility × ○ ◎ ◎ Nozzle liquid dripping × ○ ◎ ◎ Injection pattern size (Mm) 320 290 280 150 Reducing the percent dissolved of the stock solution (from a distance of 15 cm) improves the condition. However, since the size of the injection pattern is reduced, it is considered that the ratio as in the example shown in Table 3 above is good.

The following table shows an example in which isopentane is added to the stock solution in order to further improve the injection condition. In the table, △ indicates the case where it is not satisfactory but not satisfactory. 5 6 7 stock solution (dissolution%) 75 75 75 isopentane (〃) 5.55 LPG (〃) 15 10 5 DME (〃) 5 10 15 Compatibility △ ○ ◎ Foaming ◎ ◎ ○ Defoaming △ ○ ○ Liquid dripping of nozzle △ ◎ ◎ Size of spray pattern 280 250 150 (mm) Thus, it can be seen that the state is significantly improved by the addition of isopentane.

[0017]

According to the invention of this application, the cleaning liquid or insect repellent is sprayed onto a porous flat body such as a screen door with good foaming and defoaming properties and efficiently over a wide range. An aerosol sprayer for application which can be applied was obtained.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view of a first embodiment of an injector of the present invention.

FIG. 2 is a diagram showing an injection nozzle portion and a chip separated from a cap.

FIG. 3 is a side view of an injection nozzle portion.

FIG. 4 is a front view of FIG. 3 viewed from a direction F;

FIG. 5 is a rear view of FIG. 3 viewed from a direction D;

FIG. 6 is a side view of a chip.

FIG. 7 is a front view of FIG. 6 viewed from the R direction.

FIG. 8 is a rear view of FIG. 6 viewed from a P direction.

FIG. 9 is a longitudinal sectional view of a second embodiment of the injector.

FIG. 10 is a side view of an injection nozzle portion.

11 is a front view of FIG. 10 viewed from the direction F.

FIG. 12 is a rear view of FIG. 10 viewed from a direction D.

FIG. 13 is a longitudinal sectional view of FIG.

14 is a front view of the injection nozzle portion removed from FIG. 10 and viewed from the P direction.

FIG. 15 is a longitudinal sectional view of the third embodiment.

FIG. 16 is a side view of an injection nozzle portion.

17 is a front view of FIG. 16 viewed from the direction F.

FIG. 18 is a rear view of FIG. 16 viewed from the direction D.

19 is a longitudinal sectional view of FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Cap 2 Nozzle stem fitting part 3 Passage 4 Passage 5 Cap front concave part 10 Injector 20 Injection nozzle part 21 Injection port 23 Slit 24 Communication part 25 Communication part 30 Chip 31 Convex part 32 Groove part 33 Rotating groove part 34 Groove part 35 Recess part 40 Injection Nozzle 50 Revolving part 51 Revolving groove 52 Vertical groove 53 Recessed part around revolving part

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 3E014 PA01 PB04 PD04 PE05 PE16 PF10 4F033 RA02 RA20 RC16

Claims (3)

[Claims] 1. An aerosol sprayer for coating, characterized in that it has a spray nozzle configured by combining a spray nozzle portion having an oblong spray port with a chip having a screw-shaped groove formed on the outer periphery. Aerosol sprayer for coating. 2. An aerosol sprayer for coating, comprising: a spraying liquid having a foaming property and a defoaming property; and a propellant of a liquefied gas, a spraying nozzle portion having an oblong spraying port, and a screw-shaped outer periphery. An aerosol sprayer for application characterized by being configured to spray from a spray nozzle in combination with a chip having a groove formed therein. 3. The above-mentioned jetting liquid is obtained by adding an amphipathic substance to an aqueous and / or alcoholic solution containing an active ingredient, further comprising a foaming agent comprising a hydrocarbon such as pentane as a foaming solvent, and silicon; 3. A film formed by adding an antifoaming agent such as ethanol.
The aerosol sprayer for application according to the above.