JP2000005649A - Method for applying antibacterial layer and application device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make it easy to form an antibacterial layer on the wall of an existing building, the surface of a table or the like and at the same time, enable an antibacterial effect to be maintained for a long time by spraying fine powder with the antibacterial effect right after spraying a resin and a curing agent which become an adhesive to a face to be coated. SOLUTION: Three atomizer 3A-3C are fitted to the C-type engagement part 24 of a frame 20 on a coating device 2 and a main agent consisting of a solvent of a heat resistant resin such as fluororesin and water glass, a solution made up of a resin curing agent and a solvent of fine powder showing an antibacterial effect are sealed in each of containers 30. Next the solution is injected from each of nozzles of the atomizers 3A-3C by manipulating a lever 4 to press nozzle cap parts 34 through regulating members 22 with the help of the tip parts 42 of the lever 4. In this case, each of nozzles are moved together with the frame 20 in a specified direction along a face to be coated. Right after the spraying of the main agent and the curing agent to the face to be coated, the fine powder of the antibacterial agent is sprayed to form an antibacterial layer.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] The present invention relates to the formation of a coating agent having an antibacterial action.

[0002]

In recent years, as the titanium dioxide (T _i O _2), exhibits a photocatalytic reaction by acting as a photocatalyst, antibacterial layer is developed with a variety of effects such as antibacterial effect, antifouling effect or deodorant Have been. In some cases, it is desired to form such an antibacterial layer on existing buildings and equipment. In this case, it has been proposed to apply the antibacterial layer later.

[0003]

However, in the conventional antibacterial layer shown in FIG. 5A, the catalyst layer 12 is laminated on the substrate 10 via the adhesive layer 11, so that the catalyst layer 12 is easily peeled off. Thus, when the catalyst layer 12 peels off, the antibacterial action deteriorates with time. In particular, as shown in FIG. 5B, when the catalyst layer 12 is formed after applying the curing agent 11b on the resin 11a forming the adhesive layer 11, the resin 11a is not sufficiently cured. Easy to peel off. on the other hand,
Another conventional antibacterial layer shown in FIG. 5C has a catalyst layer 14 in which an adhesive (resin) and a catalyst 13 are mixed on a substrate 10. And the exposed area of the catalyst 13 is small, so that the antibacterial effect is reduced.

Accordingly, an object of the present invention is to provide a coating method and a coating apparatus for an antibacterial layer which can be formed on a wall surface of an existing building or the like and can exert an antibacterial effect for a long period of time.

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings. First, the coating device will be described. As shown in FIGS. 1A and 1B, first, second and third sprayers 3 </ b> A, 3 are provided on a frame 20 of the coating apparatus 2.
B and 3C are fixed. That is, the cylinders 30 of the sprayers 3A, 3B, 3C are fitted and fixed to the C-shaped fitting portion 21 of the frame 20.

In the cylinder 30 of the first sprayer 3A, a base material obtained by dissolving a heat-resistant resin such as a fluororesin, a silicon resin or a phosphagen resin or other water glass (aqueous alkaline solution) in a solvent is enclosed. The second sprayer 3B
A solution in which a curing agent for curing the resin is dissolved in a solvent is sealed in the cylinder 30. In the cylinder 30 of the third sprayer 3C, fine powder exhibiting an antibacterial action is sealed in a state of being dispersed in a solvent.

As such fine powder, fine powder or ultrafine particles of titanium dioxide, zinc oxide, tourmaline or other antibacterial ceramics are used. Titanium dioxide is a type of photocatalyst, and tourmaline exerts antibacterial and deodorant effects even in places not exposed to light. The solvent may be either aqueous or oily.

Each of the sprayers 3A to 3C includes a first to third nozzles 3 for spraying the solution in the cylinder 30.
1, 32, and 33 are provided. Each of these nozzles 31 to
2 (a) and 2 (b) are shown in FIG.
As shown in FIG. 7, the regulating member 22 is fitted. The regulating member 22 has a notch 22a that engages with the nozzles 31 to 33.
Position and spray direction.

[0009] As shown in FIG.
At 0, an operation lever (operation unit) 4 is attached rotatably about a hinge 40. The distal end of the operation lever 4 is divided into three parts as shown in FIGS. 1A and 1B, and the restricting member 22 is attached to these distal ends as shown in FIG. An engagement protrusion 41 is provided to engage with the engagement groove 22b. Therefore, by turning the operation lever 4 of FIG. 2A in the direction of the arrow, the operation lever 4 of FIG.
Can be simultaneously sprayed from each of the nozzles 31-33.

Next, a coating method will be described. First, the three sprayers 3 </ b> A to 3 </ b> C are pushed in the direction of the arrow in FIG. 2A and fitted to the fitting portions 21 and 21 of the frame 20. Next, when the lever 4 is gripped and the lever 4 is rotated in the direction of the arrow, the distal end portion 42 of the lever 4 pushes the nozzle cap portion 34 via the regulating member 22. As a result, FIG.
The solution is sprayed from each of the nozzles 31 to 33 in (a). In this state, the nozzles 31 to 33 of the frame 2 are moved along the surface to be coated F in the direction of the arrow. As a result, the fine powder of the antibacterial agent C was sprayed immediately after the main agent A and the curing agent B were sprayed on the arbitrary application surface F, and the fine powder of the antibacterial agent C was mixed with the curing agent B. Sprayed in state,
Alternatively, it is sprayed in a state of being mixed with the main agent A and the curing agent B.

The antimicrobial layer thus formed is shown in FIG.
As shown in (2), since the base material A and the curing agent B are well mixed in the adhesive layer 15, the resin is sufficiently cured. Moreover, since the antibacterial agent C is sprayed before the adhesive layer 15 is hardened, the antibacterial agent C digs into the adhesive layer 15 and the antibacterial agent C hardly comes off from the adhesive layer 15.

On the other hand, since the antibacterial agent C is not mixed in the solution of the base agent and the curing agent, it is sufficiently exposed on the surface of the substrate 10, so that a sufficient antibacterial effect and deodorant effect can be expected.

It is to be noted that the main agent and the curing agent are separated into separate cylinders 30,
Since it is accommodated in 30, the main agent hardens and there is no risk of clogging the nozzle.

FIG. 4 shows a second embodiment. FIG. 4 (a),
As shown in (b), a hose H is connected to the compressor Co.
The hose H is connected to a pair of branch hoses 1H and 3H via a valve V. Nozzles 51 and 53 communicate with the distal ends of the branch hoses 1H and 3H, respectively. Each branch hose 1H, 3H has a tank 6
1,63 openings face the branch hoses 1H, 3
When the gas passes through H, the solution in the tanks 61 and 63 is sucked and sprayed from the nozzles 51 and 53.

A solution in which a resin and a curing agent are dissolved in a solvent is sealed in the one tank 61. On the other hand, in the other tank 63, a fine powder exhibiting an antibacterial action is dispersed in a solvent.

The valve V is opened by pulling the operation lever 4 in the direction of the arrow. At this time, the pressure gas from the compressor is discharged from the nozzles 51 and 53 via the hose H and the branch hoses 1H and 3H. You. Therefore, the contents of the tanks 61 and 63 can be sprayed by moving the lever 4 in the direction of the arrow in FIG.

In the second embodiment, large tanks 61 and 6 are used.
3 is suitable for business use. In the second embodiment, the main agent and the curing agent are mixed in the tank 61, but there is no possibility that the main agent will be cured if used on the day. Note that four or more nozzles may be provided.

[0018]

As described above, according to the present invention,
Immediately after spraying the adhesive resin and hardener on the surface to be applied, fine powder exhibiting antibacterial action is sprayed, so that an antibacterial layer can be formed on the walls and tables of existing buildings, and the antibacterial layer is hard to peel off Further, since the antibacterial layer is formed to a deep portion even when peeled off, an antibacterial effect can be obtained for a long period of time.

[Brief description of the drawings]

FIG. 1A is a rear view of a coating apparatus according to a first embodiment of the present invention, and FIG. 1B is a plan view of the same.

FIG. 2A is a side view of a coating apparatus showing a first embodiment of the present invention, and FIG. 2B is an exploded perspective view of a nozzle portion.

3A is a plan view showing an application method, and FIG. 3B is a schematic sectional view showing an antibacterial layer.

4A is a side view of a coating apparatus according to a second embodiment, and FIG. 4B is a plan view of the same.

FIG. 5 is a schematic sectional view showing a conventional antibacterial layer.

[Explanation of symbols]

 31, 32, 33: Nozzle 51, 53: Nozzle

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 4D075 AA01 AA39 AA76 AA85 AE06 CA13 CA45 DC01 DC02 DC03 EA02 EA07 EA10 EA27 EA35 EB16 EB43 EB45 EC02 EC37 4F033 RA01 RA04

Claims (3)

[Claims] 1. A main agent containing a resin and a curing agent for curing the resin are sprayed from a nozzle onto a desired surface to be coated.
A method for applying an antibacterial layer, wherein a fine powder exhibiting an antibacterial action is sprayed on the surface to be coated immediately after the spraying. 2. A first nozzle for spraying a main agent obtained by dissolving a resin in a solvent; a second nozzle for spraying the curing agent in a state in which a curing agent for curing the resin is dissolved in the solvent; With the fine powder dispersed in the solvent,
An antimicrobial layer coating device, comprising: a third nozzle for spraying the solution; regulating means for regulating the position and spray direction of each nozzle; and an operation unit for causing each nozzle to spray simultaneously. 3. In a state where the resin and a curing agent for curing the resin are dissolved in a solvent, one nozzle for spraying the solution, and a state where fine powder having an antibacterial action is dispersed in the solvent,
An antimicrobial layer coating apparatus, comprising: another nozzle for spraying the solution; a regulating unit for regulating the position and the spray direction of each nozzle; and an operation unit for causing each nozzle to spray simultaneously.