JPH05200329A - Blow-off member for atomization generating device and surface treatment thereof - Google Patents

Abstract

PURPOSE:To atomize a uniform particle by forming an extreme fine ruggedness of the surface of a blow-off member made of a synthetic resin and forming a hydrophilic group on the surface of the blow-off member so as to reduce the generation of waterdrop on the surface of the blow-off member made of the synthetic resin. CONSTITUTION:The extreme fine ruggedness is formed on the surface of the blow-off member B made of synthetic resin and the hydrophilic group much more than in the synthetic resin base material is formed on the surface. In this case, the extreme fine ruggedness is formed by transfer from the surface of a molding die or by ionized-gas treating a synthetic resin material having the orientation property in the surface composition. And the hydrophilic group on the surface is formed by a reaction of an electrically neutral particle in the ionized gas at the time of ionized-gas treating. Glow discharge treating, corona discharge treating or ion irradiation treating is used as the ionized gas treating. As a result, the steam particle on the surface of the blow-off member is spread for wetting without forming waterdrop.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a spray generator such as an inhaler used for treating inflammation caused in the respiratory system such as throat and nose, a sprayer for supplying a mist for restoring the raised hair of clothes. And a surface treatment method thereof.

[0002]

14 and 15 show an inhaler A which is a kind of a spray generating device. The inhaler A is formed of a steam generating unit 1 and a suction liquid tank 2 and is formed by a steam generating unit. The vapor supplied from 1 through the vapor pipe 3 and the inhalation liquid such as the medicinal liquid sucked up from the inhalation liquid tank 2 through the suction pipe 4 are mixed and blown out from the outlet 6 of the cover 5 to spray the inhalation liquid. It is the one. In the inhaler A, the blow-out port 6 of the cover 5, the spray nozzle 7 of the steam pipe 3, the suction nozzle 8 of the suction pipe 4 and the like which form the blowing member B are made of synthetic resin. Is common.

[0003]

Many general-purpose synthetic resins, which are widely used as part materials for industrial products today, have water repellency. Therefore, when the surface of the inhaler A formed of synthetic resin having water repellency is used as the blowing member B, when high-temperature vapor condenses on the surface of the blowing member B, it adheres to the surface of the blowing member B as high-temperature water droplets. It will be. This high-temperature water drop 9 is particularly likely to occur on the inner surface of the spray guide 10 at the outlet 6, as shown in FIG. Then, some of the high-temperature water droplets 9 drop into the suction liquid tank 2 by gravity, but some of the high-temperature water droplets 9 are scattered as a molten metal from the blow-out port 6 by the jet pressure. However, in this way, the high-temperature water droplet 9 becomes a hot water droplet and scatters to cause inhaler A.
If you put it in the mouth of the user, there is a risk that the user will get burned and there is a safety problem, and a loud noise will be generated when the water droplets 9 are splashed, causing psychological anxiety to the user. There is also a problem in that the steam gives a nonuniform particle size due to water droplets and enters into the mouth of the user, which causes discomfort to the user. in addition,
There is also a problem that the water droplet 9 becomes bloated and drips from the outlet 6 to stain the surrounding area, or the inhaler A itself is soiled with the residue of the water droplet 9.

Although the inhaler A, which is a type of spray generator, has been described above, even in a sprayer that supplies mist so as to restore the raised hair of clothes, water droplets are similarly generated to cause a part of the mist. When water drops are mixed in, the problem arises that the raising properties of the clothing material vary.
The present invention has been made in view of the above points, and a blowing member of a spray generation device capable of reducing the occurrence of water droplets on the surface of a blowing member formed of a synthetic resin and spraying with uniform spray particles. And its surface treatment method.

[0005]

A blowing member of a spray generating apparatus according to the present invention is characterized in that it is made of a synthetic resin material and has microscopic ridges and valleys formed on its surface. It is characterized in that more hydrophilic groups than the resin material are formed on the surface. Further, the surface treatment method of the blowing member of the spray generator according to the present invention,
It is characterized in that the surface of a blowing member formed of a synthetic resin material of a spray generator is treated with ionized gas.

The treatment with ionized gas can be performed by glow discharge, corona discharge, or ion beam irradiation.

[0007]

[Function] By forming extremely minute irregularities on the surface of the blowing member made of a synthetic resin material and forming more hydrophilic groups than the synthetic resin material on the surface, the vapor spreads without becoming water drops. It is possible to prevent the formation of water droplets.

Further, by treating the surface of the blowing member made of synthetic resin with glow discharge, corona discharge, or ion beam irradiation and ionizing gas, extremely minute uneven lines or hydrophilic groups are formed on the surface of the blowing member. It is possible to treat the surface without water droplets.

[0009]

EXAMPLES The present invention will be described in detail below with reference to examples. (Embodiment 1) This embodiment corresponds to claim 4, and a cavity of a molding die 24 composed of upper and lower dies 24a and 24b for molding the blowing member B as shown in FIG. 2 (a). Polish the surface of 25 with sandpaper,
The minute ridges 26 for molding are formed by performing ion etching or the like. By injecting a synthetic resin having a high fluidity such as polystyrene (PS) resin into the molding die 24 to perform molding, the uneven ridges 26 for molding of the molding die 24 are transferred as shown in FIG. 2B. Thus, it is possible to obtain the blowing member B having the surface formed with the microscopic ridges and valleys 27. When the surface of the blow-out member B obtained by molding in this way was observed with a scanning electron microscope, it was found that the micro-fine irregularities 27
Is, as shown in FIG. 3, groove width W ₁ = 0.2 μm, groove depth D
= 0.005 μm, and the microscopic ridges 27 with a width W ₂ = 0.5 μm between the microscopic concave grooves 27a.
It was observed that it was formed with b.

As described above, the wettability of water on the surface of the blowing member B formed by transferring the forming uneven strips 26 provided on the forming die 24 to form the minute uneven strips 27 on the surface is brought into contact with the surface. When measured using an angle measuring device, the water 2 on the surface of the blowing member B molded so that the molding die 24 is not provided with the molding concavo-convex strips 26 and the microscopic micro-relief strips 27 are not formed
The contact angle θ _{1 with} respect to 0 is 78 ° (FIG. 4A), whereas the contact angle with respect to water on the surface of the blowing member B on which the minute ridges and grooves 27 are formed is θ ₂ = 12 °.
As shown in FIG. 4 (b), the wettability with water was significantly improved. When using the blow-out port 6 of the cover 5 as the blow-out member B, the blow-out port 6 is formed by the method of forming the minute ridges and valleys 27 as described above, and is attached to the inhaler A to generate steam. As a result, the injected steam spreads on the surface of the spray guide 10 of the outlet 6 without forming water droplets, as shown by reference numeral 15 in FIG. 1, and there was no scattering of water droplets or generation of stains due to water droplets. Further, when the steam generating unit 1 and the suction liquid tank 2 were similarly used as the blowing member B, the wettability to water was remarkably improved, and the surface was prevented from being contaminated by the water drop residue.

It should be noted that the means for providing the molding concavo-convex strips 26 on the molding die 24 is not limited to those described above, but may be an electrocasting method used for a CD die, or the like. It suffices if an extremely minute uneven line can be formed on the surface of the cavity 25 of 24. (Embodiment 2) This embodiment corresponds to claim 5, and the composition of the surface of the blowing member B when the blowing member B is molded by injecting a synthetic resin material such as polystyrene resin into a molding die. So that the orientation of
As shown in (a), molding is performed so that the polymer that constitutes the resin is arranged along the flow direction (a arrow) when the resin is injected. Then, the surface of the blowing member B molded in this way and taken out from the molding die is ionized by an argon ion beam (indicated by arrow B) under the conditions of an acceleration voltage of 500 V and an acceleration current of 500 mA using a Kauffman type ion gun. Etched. Blow-out member B formed by this method
When the surface of the is observed with a scanning electron microscope, as shown in FIG. 5 (b), as shown in FIG. 5 (b), the minute groove grooves 27a formed by the argon beam etching along the resin molecule orientation are formed on the surface. Small uneven lines 27 were observed.

When the synthetic resin material such as polystyrene resin mixed with the glass fiber filler 28 is injected into the molding die to mold the blowing member B, the blowing member B is used.
Molding is performed so that the orientation of the glass fiber fillers 28 appears on the surface of the glass fiber fillers, that is, the glass fiber fillers 28 are arranged along the flow direction (a arrow) at the time of resin injection as shown in FIG. 6 (a). It was Then, the surface of the blowing member B molded in this way and taken out from the molding die was etched with ionized gas by an argon ion beam (indicated by arrow B) under the same conditions as above. When the surface of the blowing member B formed by this method is viewed with a scanning electron microscope, as shown in FIG. 6B, the glass fiber filler 28
The minute ridges and grooves 27 formed by providing the minute ridge grooves 27a on the surface by the argon beam etching along the orientation (also the orientation of the resin) were observed.

When using the blow-out port 6 of the cover 5 as the blow-out member B, the minute concave-convex stripes 27 are formed in the blow-out port 6 as described above, and this is attached to the inhaler A to generate steam. However, the steam to be injected is, as shown by reference numeral 15 in FIG.
No water droplets spread on the surface of No. 0, and there was no scattering of water droplets or generation of stains due to water droplets. The blowing member B
As a result of similar molding using the steam generation unit 1 and the suction liquid tank 2, remarkable improvement in wettability with water was observed, and it was possible to prevent the surface from being contaminated by water drop residue.

The filler is not limited to the above-mentioned glass, but may be any one having an etching rate different from that of the synthetic resin material. (Embodiment 3) This embodiment corresponds to claim 6, and as shown in FIG. 7, a blowing member B formed of acrylonitrile styrene (AS) resin or the like is attached to the sample fixing base in the sample processing chamber 29. Set the inside of the sample processing chamber 29 to 0.00
The pressure was reduced to 1 Torr or less. After this, the gas introduction port 30 is added to the plasma generation chamber 30 provided above the sample processing chamber 29.
Introducing oxygen gas from a, glow discharge in the plasma generation chamber 30 under the conditions of input 100 W and high frequency 13.56 MHz by the high frequency power source 31 for discharge under a constant pressure of 0.1 Torr, in the generated ionized gas (plasma) Of the electrically neutral particles (including the neutral active species) were introduced into the sample processing chamber 29, and the surface of the blowing member B was processed for several seconds to several minutes.

As described above, only the electrically neutral particles in the ionized gas generated by the glow discharge treatment in the oxygen gas atmosphere are introduced into the sample treatment chamber 29 to treat the surface of the blowing member B. After the surface was modified, the change in the wettability of water on the surface of the blowing member B was measured by using a surface contact angle measuring device. As a result, it was small as in the case of FIG. Was observed. Furthermore, when the surface of the blowing member B was analyzed by X-ray photoelectron spectroscopy analysis, as shown in the C1s spectrum diagram of FIG. 8 in which photoelectrons emitted from the 1s orbit of the carbon atom were detected, the blowing member B before treatment ( In the blowing member B after treatment (shown as an untreated sample in FIG. 8) (shown as a treated sample in FIG. 8), a hydrophilic group having an oxygen atom such as a carbonyl group, which is one of the causes of improvement in wettability, is generated. It was recognized that there were many. Therefore, it is considered that by performing the above-described treatment, more hydrophilic groups than the synthetic resin material can be formed on the surface of the blowing member B, and therefore the wettability with water can be significantly improved. In addition, when the surface of the blowing member B treated in this way was observed with a scanning electron microscope, it was observed that there was almost no change from that of the untreated blowing member B, and that the treatment was carried out without causing damage to the surface. It was

When using the blow-out port 6 of the cover 5 as the blow-out member B, the blow-out port 6 was treated with ionized gas by glow discharge as described above, and was attached to the inhaler A to generate vapor. As in the case of Example 1, the sprayed steam spreads on the surface of the spray guide 10 of the outlet 6 without forming water droplets, and there was no scattering of water droplets or generation of stains due to water droplets. Further, when the steam generating unit 1 and the suction liquid tank 2 were similarly used as the blowing member B, the wettability to water was remarkably improved, and the surface was prevented from being contaminated by the water drop residue. Furthermore, modified polyphenylene oxide resin (PP
The spray nozzle 7 formed by (O) cannot be surface-coated to improve the wettability because the vapor passage has an extremely thin tubular shape, but is similarly treated with ionized gas by glow discharge treatment. As a result, it was possible to significantly improve the wettability with water because the surface can be treated even in the narrow passage.

(Embodiment 4) This embodiment corresponds to claims 8 and 10, and is formed of a resin molded product such as acrylonitrile-styrene resin in the reactor 12 as shown in FIG. Inserting the blowing member B into the electrodes 13a, 1
The pressure inside the reactor 12 was reduced to 0.01 Torr. After that, oxygen gas was introduced into the reactor 12 through the gas inlet 14. In this way, in an oxygen gas atmosphere, under a constant pressure of 0.1 Torr, input 100 W, high frequency 1
The glow discharge was performed under the condition of 3.56 MHz, and the surface of the blowing member B was treated with the generated ionized gas (plasma) for several seconds to several minutes.

As described above, after the surface of the blowing member B is modified by glow discharge treatment in an oxygen gas atmosphere and treating the surface of the blowing member B with ionized gas, the surface of the blowing member B is subjected to a change in wettability of water. When measured using a contact angle measuring device, the contact angle was small as in the case of FIG. 4, and the wettability with water was significantly improved. Also, when the surface of the blowing member B after the glow discharge treatment is viewed with a scanning electron microscope, the action of the ionized gas by the glow discharge treatment reveals that the minute ridges 27 formed by the minute grooves 27a are formed. It was observed that Further, when the surface of the blowing member B was analyzed by X-ray photoelectron spectroscopy, the hydrophilic group having an oxygen atom such as a carbonyl group, which is one of the causes for improving the wettability, was treated as in the case of Example 3 above. It was recognized that there were more on the surface than before. As described above, it is considered that the wettability with respect to water can be remarkably improved by the formation of the microscopic rugged lines 27 and the presence of the hydrophilic group.

When using the blow-out port 6 of the cover 5 as the blow-out member B, the blow-out port 6 is treated with ionized gas by glow discharge treatment as described above, and this is attached to the inhaler A to generate vapor. However, as in the case of Example 1, the sprayed steam spreads on the surface of the spray guide 10 of the outlet 6 without forming water droplets, and there was no scattering of water droplets or generation of stains due to water droplets. Further, when the vapor generating unit 1 and the suction liquid tank 2 were used as the blowing member B and similarly treated with an ionized gas by glow discharge treatment, remarkable wettability with water was observed, and surface contamination due to water droplet residue was prevented. We were able to. Furthermore, when the steam pipe 3 and the suction pipe 4 were similarly treated with an ionized gas by glow discharge treatment, the wettability with water was remarkably improved, and water droplets generated in the middle of the pipe were prevented from hindering liquid transport. It was possible to generate steam efficiently. Further, since the spray nozzle 7 formed of the modified polyphenylene oxide resin (PPO) has an extremely thin pipe for vapor, it is impossible to coat the surface of the spray nozzle 7 to improve the wettability. When treated with ionized gas by electric discharge treatment, the wettability with water was remarkably improved because the surface treatment was possible even in a narrow passage.

(Embodiment 5) This embodiment corresponds to claim 9. As in Embodiment 4, glow discharge is performed in an oxygen gas atmosphere and ionized gas (plasma) is applied to the surface of the blowing member B. In the processing, as shown in FIG. 10, an electrode 33 connected to the variable bias power source 32 so as to variably have a negative potential than the ionized gas is provided at the tip of the blowing member B, and a negative voltage of 100 V is applied to the electrode 33. Was applied to change the energy to collide with the blowing member B of particles having positive charge in the ionized gas space. Also in this embodiment, the same effect as that of the fourth embodiment can be obtained, and the effect of the ionized gas treatment by the glow discharge treatment can be changed depending on the part of the blowing member B by the variable bias voltage. It has become possible to efficiently process the tip portion of the blowing member B, which is desired to have improved wettability with water.

(Embodiment 6) This embodiment corresponds to claim 11, and when the surface of the blowing member B is treated by glow discharge treatment with ionized gas as in Embodiment 4, inside the reactor 12 Argon gas is introduced into the
A glow discharge was performed under the conditions of 0 W and a high frequency of 13.56 MHz to remove the organic contaminants adhering to the surface of the blowing member B by a physical impact effect, and subsequently, oxygen gas was introduced into the reactor 12 to obtain an example. Glow discharge treatment was performed in the same manner as in 1. In this embodiment, the same effect as that of the above-described first embodiment can be obtained, and the surface of the blowing member B can be cleaned.

(Embodiment 7) This embodiment corresponds to claim 12. As shown in FIG. 11, a dielectric 17 is placed on the lower electrode 16a, and acrylonitrile styrene is placed on the dielectric 17. The blowing member B formed of resin or the like is set. The upper electrode 16b is formed in a shape that follows the concave shape of the blowing member B formed by the blowing port 6 and the like, and is inserted into the blowing member B. Then, under atmospheric pressure for several seconds to several minutes, corona discharge is performed under the condition of input of 500 W, and the surface of the blowing member B is treated with the generated ionized gas (plasma) for several seconds to several minutes.

After the surface of the blowing member B is modified by treating the surface of the blowing member B with the ionized gas by the corona discharge treatment as described above, the surface contact angle measuring device measures the change in the wettability of water on the surface of the blowing member B. As a result of measurement using the same, the contact angle was small as in the case of FIG. 4, and a remarkable improvement in wetting with water was observed. Further, when the surface of the blowing member B after the corona discharge treatment is observed with a scanning electron microscope, the action of the ionized gas due to the corona discharge treatment reveals that the minute ridges 27 formed by the minute groove grooves 27a are formed. It was observed that Further, when the surface of the blowing member B was analyzed by X-ray photoelectron spectroscopy, the hydrophilic group having an oxygen atom such as a carbonyl group, which is one of the causes for improving the wettability, was treated as in the case of Example 3 above. It was recognized that there were more on the surface than before.

As the blowing member B, the blowing port 6 of the cover 5 was used for treatment with the above-mentioned ionized gas by corona discharge treatment, and this was attached to the inhaler A to generate vapor. The injected steam spreads on the surface of the spray guide 10 of the outlet 6 without forming water droplets, and there was no scattering of water droplets or generation of stains due to water droplets. Further, when the vapor generating unit 1 and the suction liquid tank 2 were used as the blowing member B and similarly treated with ionized gas by corona discharge treatment, remarkable wettability with water was observed, and surface contamination due to water drop residue was prevented. We were able to.

(Embodiment 8) This embodiment corresponds to claims 13 and 15, and as shown in FIG. 12, a blow-off molded from an acrylonitrile-styrene resin or the like on a sample fixing base in a vacuum container 18. The member B is set, the pressure inside the vacuum container 18 is reduced to 1 × 10 ⁻³ Torr or less, and the vacuum container 1
The Kaufman type ion gun 19 provided in No. 8 has an acceleration voltage of 40
The surface of the blowing member B was irradiated from directly above for several seconds to several minutes under the conditions of 0 V and an acceleration current of 80 mA, and the ionized gas generated by the irradiation of the oxygen ion beam was made to act.

After the surface of the blowing member B is modified by treating the surface of the blowing member B with the ionized gas by the ion beam irradiation as described above, the change of the wettability of water on the surface of the blowing member B is measured by using a surface contact angle measuring device. The contact angle was small as in the case of FIG. 4, and the wettability with water was significantly improved. Further, when the surface of the blowing member B after the irradiation with the ion beam is observed with a scanning electron microscope as described above, the action of the ionized gas due to the ion beam irradiation causes the generation of the minute recesses and protrusions 27 by the minute recess groove 27a. It was observed that Further, the blowing member B
The surface of was analyzed by X-ray photoelectron spectroscopy,
As in the case of Example 3 above, it was confirmed that more hydrophilic groups having an oxygen atom such as a carbonyl group, which are one of the causes for improving the wettability, were present on the surface than before the treatment.

When the above-mentioned ion beam irradiation was performed using the blow-out port 6 of the cover 5 as the blow-out member B, and this was attached to the inhaler A to generate steam, the steam injected as in Example 1 No water droplets were formed on the surface of the spray guide 10 of the outlet 6 and spread, and there was no scattering of water droplets or generation of stains due to water droplets. Further, when the vapor generating unit 1 and the suction liquid tank 2 were used as the blowing member B and similarly treated with ionized gas by ion beam irradiation, remarkable wettability with water was observed, and surface contamination due to water droplet residue was prevented. We were able to.

(Embodiment 9) This embodiment corresponds to claim 14, and when irradiating with an ion beam as in Embodiment 8, the blowing member B is covered with a mask 21 as shown in FIG. The ion beam is irradiated only to the inner surface of the member B, which is a passage through which vapor and mist pass, and the outer surface of the blowing member B is not irradiated with the ion beam. This ion beam irradiation was performed using the blow-out port 6 of the cover 5 as the blow-out member B, and this was attached to the inhaler A to generate vapor. Only the inner surface of the blow-out port 6 spreads without becoming water droplets. The same effects as those of the above-described respective examples were obtained, and since the outer surface was not irradiated with the ion beam, the water was drained well, and the discomfort of the user due to water wetting was eliminated.

(Embodiment 10) This embodiment corresponds to claim 16. When the surface of the blowing member B is treated with ionized gas by ion beam irradiation as in Embodiment 4, the inside of the vacuum container 18 is changed. Then, the blowing member B was set to and an argon beam was applied under the conditions of an acceleration voltage of 1 kV and an acceleration current of 160 mA to remove organic contaminants adhering to the surface, and then an oxygen ion beam was applied under the same conditions as in Example 8. To process. In this embodiment, the same effect as that of the above-described Embodiment 8 can be obtained, and the surface of the blowing member B can be cleaned.

[0030]

As described above, according to the present invention, since the minute irregularities are formed on the surface of the blowing member formed of the synthetic resin material and the hydrophilic group is formed on the surface of the blowing member, the vapor particles are water droplets. It can be spread without wetting, and can prevent the formation of water droplets and spray uniform particles.

Further, since the surface of the blowing member made of synthetic resin is treated with ionizing gas by glow discharge, corona discharge, or ion beam irradiation, it is possible to form extremely minute uneven lines on the surface of the blowing member or to make it hydrophilic. The surface of the film can be treated by forming a base or the like, and the surface can be treated without the need to deposit a different material on the surface. There is no problem that the life of the surface modification effect due to peeling is shortened and that the peeled film may enter the mouth of the user in the case of an inhaler.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of a blowing member of a spray generating device treated according to the present invention.

FIG. 2 shows Example 1 of the present invention, in which (a),
(B) is a schematic sectional drawing, respectively.

FIG. 3 is an enlarged perspective view of a part of the first embodiment of the present invention.

FIG. 4 shows the contact angle of water droplets,
(A), (b) is an expanded sectional view, respectively.

FIG. 5 shows Example 2 of the present invention, in which (a),
(B) is some expanded perspective views, respectively.

FIG. 6 shows Example 2 of the present invention, in which (a),
(B) is some expanded perspective views, respectively.

FIG. 7 is a schematic sectional view of Embodiment 3 of the present invention.

FIG. 8 is a C1s spectrum diagram of X-ray photoelectron spectroscopy analysis in Example 3 of the present invention.

FIG. 9 is a schematic diagram of Example 4 of the present invention.

FIG. 10 is a schematic diagram of Example 5 of the present invention.

FIG. 11 is a schematic diagram of Example 7 of the present invention.

FIG. 12 is a schematic diagram of Example 8 of the present invention.

FIG. 13 is a schematic diagram of Example 9 of the present invention.

FIG. 14 is a cross-sectional view of an inhaler.

FIG. 15 is an exploded perspective view of the inhaler.

FIG. 16 is a sectional view of a conventional example.

[Explanation of symbols]

 B Blow-out member 27 Micro fine uneven strip

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[Procedure amendment]

[Submission date] April 20, 1992

[Procedure Amendment 1]

[Document name to be amended] Statement

[Name of item to be corrected] Claim 9

[Correction method] Change

[Correction content]

[Procedure Amendment 2]

[Document name to be amended] Statement

[Name of item to be corrected] Claim 15

[Correction method] Change

[Correction content]

[Procedure 3]

[Document name to be amended] Statement

[Correction target item name] 0020

[Correction method] Change

[Correction content]

(Embodiment 5) This embodiment corresponds to claim 9. As in Embodiment 4, glow discharge is performed in an oxygen gas atmosphere and ionized gas (plasma) is applied to the surface of the blowing member B. In the processing, as shown in FIG. 10, an electrode 33 connected to the variable bias power source 32 so as to variably have a negative potential than the ionized gas is provided at the tip of the blowing member B, and a negative voltage of 100 V is applied to the electrode 33. is applied to, changing the energy impinging on the balloon member B of particles having a positive electric load in ionized gas space. Also in this embodiment, the same effect as that of the fourth embodiment can be obtained, and the effect of the ionized gas treatment by the glow discharge treatment can be changed depending on the part of the blowing member B by the variable bias voltage. It has become possible to efficiently process the tip portion of the blowing member B, which is desired to have improved wettability with water.

[Procedure amendment 4]

[Document name to be amended] Statement

[Name of item to be corrected] 0029

[Correction method] Change

[Correction content]

(Embodiment 10) This embodiment corresponds to claim 16. When the surface of the blowing member B is treated with ionized gas by ion beam irradiation as in Embodiment 4, the inside of the vacuum container 18 is changed. balloon member B sets by accelerating voltage 1kV to, argon Lee at an accelerating current 160mA
After removal of the organic contaminants adhering to the surface by irradiating the on-beam is treated by irradiating an oxygen ion beam under the same conditions as in Example 8. In this embodiment, the same effect as that of the above-mentioned Embodiment 8 can be obtained, and the surface of the blowing member B is
It can be cleaned by the physical impact effect of an argon ion beam .

Continuation of front page (72) Inventor Yoshie Watari 1048 Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Works Co., Ltd.

Claims (16)

[Claims] 1. A blow-out member for a spray generating device, which is made of a synthetic resin material and has microscopic ridges and valleys formed on the surface thereof. 2. A blowing member for a spray generator, which is made of a synthetic resin material and has more hydrophilic groups than the synthetic resin material formed on its surface. 3. A blowing member for a spray generator, which is formed of a synthetic resin material, has minute irregularities formed on the surface, and has more hydrophilic groups than the material formed on the surface. .. 4. The blowing member of the spray generating device according to claim 1, wherein the microscopic ridges and valleys are formed by being transferred from the surface of the molding die. 5. The spray of the spray generating apparatus according to claim 1, wherein the fine ridges and valleys are formed by subjecting a synthetic resin material having a surface composition to orientation to an ionizing gas treatment. Element. 6. The spray of the spray generator according to claim 2, wherein the hydrophilic group on the surface is formed by a reaction of electrically neutral particles in the ionized gas during the treatment with the ionized gas. Element. 7. A surface treatment method for a blowing member of a spray generator, wherein the surface of the blowing member formed of a synthetic resin material of the spray generator is treated with ionized gas. 8. The surface treatment method for a blowing member of a spray generator according to claim 7, wherein the treatment with the ionized gas is glow discharge treatment. 9. The surface treatment method for a blowing member of a spray generator according to claim 8, wherein the blowing member is placed on an electrode to which a variable bias voltage for accelerating the ions in the glow discharge is applied. . 10. The surface treatment method for a blowing member of a spray generator according to claim 8, wherein the treatment by glow discharge is performed in an oxygen gas atmosphere. 11. The method according to claim 8 or 9, wherein the treatment by glow discharge is performed in an argon gas atmosphere to clean the surface of the blowing member, and then the treatment by glow discharge is performed in an oxygen gas atmosphere. A method for surface treatment of a blowing member of a spray generator. 12. The surface treatment method for a blowing member of a spray generator according to claim 7, wherein the treatment with the ionized gas is a corona discharge treatment. 13. The surface treatment method for a blowing member of a spray generator according to claim 7, wherein the treatment with the ionized gas is an ion beam irradiation treatment. 14. The surface treatment method for a blowing member of a spray generator according to claim 13, wherein the blowing member is masked to perform the ion beam irradiation treatment. 15. The surface treatment method for a blowing member of a spray generator according to claim 13, wherein the ion to be irradiated is oxygen. 16. The surface treatment method for a blowing member of a spray generator according to claim 13, wherein the surface of the blowing member is irradiated with argon ions to clean the surface of the blowing member and then oxygen ions are irradiated.