JP3025845B2 - Primer processing method and processing apparatus - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial application field) The present invention mainly relates to a case where a resin paint is applied to a ceramic product such as glass or ceramics, a case where a resin ink is printed, or other materials. The present invention relates to a primer treatment method and a treatment apparatus for efficiently and evenly performing a primer treatment which is used when, for example, adhering, and significantly improves the adhesion strength, water resistance strength and the like at that time.

(Prior Art) Conventionally, when performing printing or painting decoration, a coupling agent has been used to improve the affinity between the printing or coating material and the surface of the object to be decorated.

Typical examples of the coupling agent include a silane coupling agent and a titanate coupling agent, and the coupling agent has two different types of functional groups in the same molecule, and is different from an organic resin. It plays a role of mediation with inorganic resin and has the effect of remarkably improving the strength of physical properties such as adhesion strength and water resistance.

Conventionally, when a coupling agent is used to obtain the above-described effects, there are roughly the following two methods.

That is, the first is a so-called blending method in which a coupling agent is directly added to a resin of a coating material such as a paint or an ink in an amount of about 1 to 5%, and the second is an additive method such as a ceramic product such as glass or ceramic. This is a primer treatment method for applying a coupling agent to the decoration surface.

Furthermore, this primer treatment method includes a spray method in which a solution containing a coupling agent is atomized by using a spray gun with high-pressure air and sprayed on the surface of the object to be decorated, and a solution containing the coupling agent in a brush or cloth is included. And a dipping method in which the object to be decorated is immersed in a solution containing a coupling agent.

(Problems to be Solved by the Invention) However, the blending method has the following problems.

In other words, in the case of this blending method, the coupling agent has a strong effect of accelerating the reaction. Therefore, if the coupling agent is directly added to the resin of the coating material such as paint or ink, the coupling agent may act on the components or moisture in the resin and deteriorate. And the pot life is greatly reduced. That is, there is a problem that long-term storage cannot be performed. In addition, the coupling agent has an effect of promoting the so-called leveling action, in which the coating material to which the coupling agent is added tends to be flat on the surface. For example, a difference in the curing speed between the surface layer portion and the inside is obtained. If this blending method is adopted for a pattern paint in which an appropriate uneven pattern is formed, it is difficult to form the uneven pattern due to its leveling action, and the uneven surface effect as the pattern paint is not exhibited, and the coating surface is the same as a normal paint. There was also a problem that became. Furthermore, for example, when the above-described blending method is applied to a paint or an ink that cures in a short time, such as an ultraviolet-curable paint or an ink, the reaction is promoted by a coupling agent before irradiation with ultraviolet light, Solvents and unreacted components, which are originally contained in UV-curable paints or inks and should be released to the outside when irradiating ultraviolet rays, act as coupling agents to change their quality, and remain when cured by ultraviolet irradiation. For,
There is also a problem that the curing of the paint or the ink is hindered.

On the other hand, to solve the problems of the blending method, there is a primer treatment method. However, the spray method, the direct coating method, and the dipping method as the primer treatment methods have problems.

In other words, the spray method atomizes a solution containing a coupling agent with the pressure of high-pressure air from a nozzle of a spray gun or the like. Therefore, since the pressure is high, the amount of the solution scattered is large, and an expensive coupling agent is used. Cannot be used effectively, and there is a problem that variation in the pressure of the air and variation in the discharge amount from the nozzle causes variation in the particle size of the sprayed mist, making uniform primer treatment difficult.

In addition, the direct application method is a method in which a brush or cloth or the like contains a solution containing a coupling agent and is directly applied by a worker or the like or by mechanically wiping the surface of the object to be decorated. There is a case where there is unevenness or the same portion is repeatedly applied, so that uniform application cannot be performed. In addition, since the solvent itself is volatile, there is a problem that the concentration of the solution fluctuates as the coating time elapses, thereby causing uneven coating.

Furthermore, in the dipping method, the degree to which the solution on the surface of the decoration is repelled, the so-called wetting property changes for each decoration, so that the solution containing the coupling agent may be repelled. When it was taken out, there was a problem that a drop-like stuffiness and a dirty condition occurred.

Therefore, the present invention has been made in view of the above-mentioned problems and the like, and has been conceived mainly as an object of efficiently and uniformly performing a primer treatment on ceramic products such as glass and ceramics. It is.

(Means for Solving the Problems) The present invention provides a coupling agent on the surface of an object to be decorated in order to improve the affinity between the printing or coating material and the surface of the object to be decorated during printing or painting. In the primer treatment method of applying a, a coupling agent, a solution formed by diluting with water so that the silane coupling agent is in the range of 0.05 to 20 weight ratio, is used, and the solution is atomized by ultrasonic waves. The above-mentioned problem has been solved by a primer treatment method in which the mist-like solution is sent out to a predetermined closed space and an object to be decorated is passed through the space.

And a coating processing chamber which is provided in the middle of a conveying device such as a conveyor for continuously feeding ceramic products such as glass and ceramics, and through which the object to be decorated can pass in a substantially tunnel shape,
A primer comprising an ultrasonic atomizing device in which the solution formed by diluting with water so that the silane coupling agent is in the range of 0.05 to 20 weight ratio is atomized into fine particles by ultrasonic waves and sent to the coating treatment chamber. The above-mentioned problem is solved by a processing device.

(Function) The primer processing method and the processing apparatus according to the present invention have good affinity between the printing or coating material and the surface of the object to be decorated when printing or coating and decorating ceramic products such as glass and ceramics. In the primer treatment method of applying a coupling agent to the surface of the object to be decorated, the solution containing the silane coupling agent is atomized by ultrasonic waves, and the atomized solution is sent to a predetermined closed space. By passing the object to be decorated through the space, fine particles of the solution are attached to the surface of the object to be decorated and applied.

At that time, the solution containing the silane coupling agent,
The coupling agent is formed by diluting with water as a solvent so that the weight ratio of the coupling agent is in the range of 0.05 to 20%, and a solution containing the coupling agent is adhered and applied to the surface of the object to be decorated in an optimal state.

Then, the glass by a transport device such as a conveyor,
Decorative objects such as ceramic products such as ceramics are continuously fed and passed through a substantially tunnel-shaped coating processing chamber provided in the middle, and silane coupling is performed by an ultrasonic atomizer in the processing chamber. The solution containing the agent is atomized into fine particles and sent to a coating processing chamber, where the fine particles of the solution are adhered to the surface of the object to be decorated and applied.

(Example) Hereinafter, an example of the present invention will be described with reference to the drawings.

That is, reference numeral 1 shown in FIG. 1 denotes a primer treatment apparatus of the first embodiment, which is provided in the middle of a transporting device C1 such as a conveyor for continuously feeding the article B to be decorated, and is substantially in a tunnel shape. It comprises a coating processing chamber 2 through which B can pass, and an ultrasonic atomizing device 3 which atomizes a solution containing a silane coupling agent into fine particles by ultrasonic waves and sends the solution to the coating processing chamber 2.

The coating chamber 2 has a tunnel shape through which a decoration B such as a glass bottle placed on the conveyor net N of the transfer device C1 can pass. And a delivery hole 4 is provided.
A connection passage 13 to be described later is connected to the coating processing chamber 2, and the atomization solution 12 a atomized by the ultrasonic atomization device 3 is used.
Is fed into the hollow interior of the coating chamber 2 and the delivery holes 4
From the coating processing chamber 2 in a tunnel shape. A diffusion prevention cover 5 is provided around the coating processing chamber 2 so as to surround the diffusion prevention cover 5.
Is to collectively enclose the portion where the coating chamber 2 is disposed so as to cover the side surface portion of the transfer device C1 together with the transfer device C1 to form a closed space as a whole.

On the other hand, the ultrasonic atomizing device 3 is, for example, a vibrator 7 for generating ultrasonic waves by a high-frequency generating circuit 8 attached to the bottom of a box-shaped atomizing chamber 6, and a cup placed in the atomizing chamber 6. The ring agent solution 12 is atomized by ultrasonic waves from the vibrator 7 into fine particles, for example, uniform particles having a particle diameter of 5 to 10 μm. The atomized coupling agent solution 12 is supplied to a blower fan 9 rotated by a motor 10.
And the application processing chamber 2 and the ultrasonic atomizing device 3
Is passed through a connection passage 13 connected to communicate with the first passage and becomes an atomized solution 12a and is sent into the hollow space of the coating processing chamber 2.

The air volume of the blower fan 9 at that time may be adjusted by increasing or decreasing the rotation speed directly by the motor 10, but in front of the passage of the blower fan 9, an air volume adjusting plate for appropriately narrowing or expanding this passage space. By arranging 31, it can be easily adjusted.

The primer treatment performed using the primer treatment device 1 thus formed is as follows.

That is, first, silane coupling agent A-187 (manufactured by Nippon Unicar Co., Ltd.) 1-10.0 parts Ethanol 10-30 parts as a coupling agent solution 12 in the atomization chamber 6 of the ultrasonic atomization apparatus 3. Mix the water at a rate of 60 to 90 parts.

Then, ultrasonic waves are generated from the vibrator 7 to atomize the coupling agent solution 12 into fine particles.

The atomized solution 12a that has been atomized is sent out by the blower fan 9, is sent into the hollow of the coating processing chamber 2 through the connection passage 13, and is sent into the coating processing chamber 2 from the sending hole 4 provided on the inner wall thereof. It is sent out, and is sprayed onto the decoration B which passes through the inside of the coating processing chamber 2 by the transfer device C1.

Then, the coupling agent solution 12 atomized by the ultrasonic atomizing device 3 becomes the atomized solution 12a and is sprayed on the object to be decorated B with a not so strong pressure, and the object to be decorated B is not scattered in a large amount. The coupling agent solution 12 could be uniformly applied to the entire B.

Further, as the above coupling agent solution 12, a mixture of silane coupling agent A-187 (manufactured by Nippon Unicar Co., Ltd.) at a rate of 1-10.0 parts methylcellosolve 10-30 parts ion-exchanged water 60-90 parts is used. Similar results could be obtained.

The coupling agent used here is not limited to those described above, and various coupling agents are diluted with a solvent or the like suitable for each condition, and the ratio is reduced to 0.
By setting the weight ratio in the range of 05 to 20, the coupling agent solution 12 for applying a primer treatment to the surface of the decoration B is optimized.

As shown in FIG. 2, a primer treatment device 21 of the second embodiment as a treatment device for performing the primer treatment, for example, replaces the transfer device C1 of the first embodiment with an object B to be decorated such as a glass bottle. In this case, the transport device C2 is used which is mounted upside down and fitted and moved on the shaft S which moves while rotating. In this case, the shape of the tunnel-shaped coating chamber 22 is limited to only the shaft S and the decorative object B. Can be passed through, so that the lower portion is formed in a narrowed state with a gap enough for the shaft S to pass through.
The diffusion prevention cover 25 also has a shape in which the lower part is narrowed, and the other parts, that is, the ultrasonic atomizing device 23, the delivery hole
24, atomization chamber 26, vibrator 27, high frequency generation circuit 28,
The blower fan 29, the motor 30, the air volume adjusting plate 31, the coupling agent solution 32, the atomizing solution 32a, and the connecting passage 33 are the ultrasonic atomizing device 3, the delivery hole 4, the atomizing chamber 6, the vibration, of the first embodiment. It has the same structure as the child 7, the high frequency generating circuit 8, the blower fan 9, the motor 10, the air volume adjusting plate 11, the coupling agent solution 12, the atomizing solution 12a, and the connection passage 13.

Incidentally, the structure of the coating processing chambers 2, 22, the structure of the ultrasonic atomizers 3, 23, or the structure of the connection passages 13, 33 is not limited to the above-described embodiment, and the coating processing chambers 2, 22, In the case of 22,
Any structure can be used as long as the object to be decorated B can pass therethrough and a certain degree of hermetic state is ensured. Even in the structure of the ultrasonic atomizers 3 and 23, the coupling agent solution 12 is converted into extremely fine particles. Any ultrasonic atomizing device that can atomize may be used.

Further, when printing appropriate characters, designs, etc. on a part of the surface of the object to be decorated B, only a part of the primer treatment is required, so that the delivery holes 4 formed on the inner surface of the coating processing chamber 2 are formed. Since the number and position of the openings need only be the portions to be printed, it is sufficient to open only the feed holes 4 at the corresponding positions, and if it is a dedicated one, the structure of the coating chamber 2 is also covered. The structure may be such that it does not have to be a tunnel-like one that covers the entire decoration B, but only the printed part or the periphery thereof.

(Effects of the Invention) The present invention configured as described above, when printing or painting and decorating ceramic products such as glass and ceramics, can improve the affinity between the printing or coating material and the surface of the object B to be decorated. In the primer treatment method of applying a coupling agent to the surface of the object B to be decorated, the solutions 12 and 32 containing the silane coupling agent are atomized by ultrasonic waves to form the mist-like solutions 12 and 32. By sending and applying toward the decorative object B, since the particles of the solution 12, 32, which has become extremely fine by ultrasonic waves, can be applied to the surface of the decorative object B by applying ultrasonic waves, which was a conventional problem. Due to scattering of solution due to high pressure, variation of particle size due to fluctuation of air pressure and fluctuation of discharge amount from nozzle, or unevenness of brush, uneven application of coating due to repeated application of the same location, volatility of solvent itself Aging Eliminates the occurrence of coating unevenness due to fluctuations in the solution concentration, drop-like unevenness due to change in the wetting characteristics, and the appearance of a stain. When the primer B is applied to the decorative object B such as glass, ceramics and other ceramic products, the treatment is performed. Can be carried out without waste and without unevenness of the coupling agent.

Then, at that time, the solution containing the silane coupling agent is atomized by ultrasonic waves, and the atomized solution is sent to a predetermined closed space, and the decoration object B is passed through the space, for example, , In the case of a glass bottle,
The integrated bottle printing process can be incorporated into the printing process, or if the printing process is a separate process from the bottle manufacturing process, the primer process can be performed efficiently.

At that time, by diluting the solution containing the coupling agent with water or another solvent so that the silane coupling agent is in the range of 0.05 to 20 weight ratio, for example,
Even the ultrasonic atomizers 3 and 23 having a simple structure such as an ultrasonic humidifier can provide optimal coupling agent solutions 12 and 32 that can be used for ceramic products such as glass and ceramics.

On the other hand, the primer treatment apparatuses 1, 21 are provided in the middle of conveying apparatuses C1, C2 such as conveyors for continuously feeding the article B to be decorated, which is a ceramic product such as glass or ceramics, and have a substantially tunnel shape. Coating chamber 2 through which decoration B can pass
And the ultrasonic atomizer 3 for atomizing the solutions 12 and 32 containing the coupling agent into fine particles by ultrasonic waves and sending the atomized particles to the coating processing chamber 2, so that the above-described primer treatment can be performed reliably. Since the structure is very simple, it can be provided at a low cost, and furthermore, the existing device can be easily incorporated.

As described above, according to the present invention, when a primer treatment is performed on a ceramic product such as glass or ceramics, it can be efficiently and uniformly performed, and can be provided at a low cost by being incorporated in an existing device. Various excellent effects such as minimizing capital investment can be achieved.

[Brief description of the drawings]

The drawings show an embodiment of the primer treatment apparatus of the present invention. FIG. 1 is a schematic sectional view of the first embodiment, and FIG.
It is a schematic sectional drawing of an Example. 1 ... Primer treatment device, 2 ... Coating chamber, 3 ...
Ultrasonic atomizing device, 4 ... sending-out hole, 5 ... diffusion prevention cover, 6 ... atomizing chambers 6, 7 ... vibrator, 8 ...
High frequency generation circuit, 9 …… Blower fan, 10 …… Motor,
11 Air flow control plate, 12 Coupling agent solution, 12a
... atomization solution, 13 ... connection passage, 21 ... primer treatment equipment, 22 ... coating treatment chamber, 23 ...
Ultrasonic atomizing device, 24 ... sending-out hole, 25 ... diffusion prevention cover, 26 ... atomizing chamber, 27 ... vibrator, 28 ... high frequency generating circuit, 29 ... blowing fan, 30 ... motor, 31
…… Air volume adjustment plate, 32 …… Coupling agent solution, 32a ……
Atomizing solution, 33: connecting passage, B: object to be decorated, C1: conveying device, C2: conveying device, N
…… Conveyor net, S …… Shaft.

Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI B05D 7/24 302 B05D 7/24 302Y C03C 17/30 C03C 17/30 Z C09D 5/00 C09D 5/00 A (58) Int.Cl. ⁷ , DB name) B05D 3/00-3/12 B05D 7/00 B05D 7/24 302 B05B 17/06 B05C 9/08 C03C 17/30 C09D 5/00 C09D 183/00

Claims (2)

(57) [Claims] 2. Description of the Related Art When printing or painting and decorating a ceramic product such as glass or ceramics, a coupling agent is applied to the surface of the object to be decorated in order to improve the affinity between the printed or applied material and the surface of the object to be decorated. In the primer treatment method of applying a silane coupling agent, the coupling agent is 0.05 to
Using a solution formed by diluting with water so as to be in the range of 20 weight ratio, this solution is atomized by ultrasonic waves, and the solution in the form of a mist is sent to a predetermined closed space, and the solution is discharged into the space. A primer treatment method characterized by passing a decoration object. 2. A device provided in the middle of a conveyor such as a conveyor for continuously feeding ceramic products such as glass and ceramics.
A coating treatment chamber in which the object to be decorated can pass through in a substantially tunnel shape, and a solution formed by diluting the silane coupling agent with water so that the weight ratio is in a range of 0.05 to 20 is atomized into fine particles by ultrasonic waves. And an ultrasonic atomizing device for feeding into a coating treatment chamber.