JPH0446878Y2 - - Google Patents

Description

[Detailed explanation of the idea] "Industrial application field" This invention relates to an antifouling wax coating.

"Conventional technology" In cooling water intake channels of power plants, seawater intakes, large diameter water pipes, headrace channels, water passages, and ships after launching,
The technology (Patent No. 854319, etc.) that applies wax to walls in contact with water to reduce wall surface stains caused by living organisms is well-known, and is effective in reducing stains on the surfaces of structures and buildings caused by living organisms in water or seawater. It is also used to prevent

In other words, by simply forming a wax coating on the wall surface, biological larvae that have once attached and grown on concrete walls of waterways, etc., fall off due to their own weight.
The total amount of shellfish (mainly crow shellfish) can be reduced by stopping their growth, but this is because the wax surface has extremely low surface tension, which prevents larvae from attaching, secreting proteins, and sticking to them. It has been proven that there is very little biofouling for the first year or so, but in the second year the activity (smoothness) of the surface gradually decreases due to the adhesion of bioresidues, water scale, etc. The reality is that the anti-adhesion effect is also reduced.

The wax used is a mixture of paraffin wax and microcrystalline wax.
It is used for food additives, packaging, etc., and is completely harmless and has no effect on fish and shellfish, making it suitable as a material to be used, and it is desired to have some kind of sustained biofouling prevention effect.

The conventional means of sustainability are to form a wax coating after one year through the same process as the initial process, or to remove attached organisms and smooth the surface with flame, but flame regeneration The effect on the surface is inferior to that on the new surface.

``Problem that the invention seeks to solve'' However, in the case of new surfaces that are removed every year, after cleaning the wall surface prior to applying wax, it is necessary to burn off the biological residue by using flames such as kerosene to burn off the biological residue. In order to prolong the antifouling effect, it is necessary to remove the contaminated paint film, which is a complicated process such as baking to improve the adhesion of the wax to the wall surface. The reality is that maintenance of paint films has become troublesome.

``Means for solving problems'' and ``effects'' This proposal was made in view of the above circumstances, and its gist is that the base antifouling wax coating layer applied to the surface to be antifouled is treated with plastic. An antifouling wax coating layer is coated with a perforated thin film such as, an antifouling wax coating layer is formed on the thin film, and a top coating antifouling wax coating layer based on such a thin film is further laminated as necessary. The film is constructed so that it can be peeled off and renewed, and the formation of a new surface can be achieved by simply peeling off the base thin film of the contaminated wax coating layer, thereby achieving an antifouling effect without requiring any of the complicated man-hours mentioned above. The key point is that we have achieved a long-term

"Example" This will be explained in detail below based on the drawings.

Figure 1 is a cross-sectional view of the layers of the antifouling wax coating of the present invention at the time of formation, Figure 2 is a cross-sectional view of the antifouling wax coating of the present invention at the time of renewal, and Figures 3a and b are the perforated thin films of the present invention. FIG.

In the figure, 1 indicates a surface to be antifouled, such as a concrete structure, and 2 is a base antifouling wax layer coated on the surface 1 to be antifouled.

The basic antifouling wax layer 2 is coated with a thin film 3 to protect or maintain it. Needless to say, the thin film 3 must have characteristics depending on the location where it is used, such as being mechanically strong and having temperature resistance.

Furthermore, the thin film 3 is processed to have holes 3a, as shown in detail in FIG. 3, in order to ensure adhesion to the basic antifouling wax layer 2. The wrap-around effect ensures close contact of the antifouling wax layer 4.

On the thin film 3, another antifouling wax coating layer 4 is formed as a top coat using this as a base.

As a result, the upper and lower wax coating layers are stacked with the thin film 3 interposed therebetween in a sandwich pattern.
Therefore, as shown in FIG.
If the antifouling effect can no longer be achieved due to adhesion, the antifouling wax coating layer 4 is removed together with the thin film 3, exposing the uncontaminated basic antifouling wax layer 2, which can be used as a new surface. You can. In the illustrated example, the update is performed only once, but multiple updates are possible by forming the above-mentioned peel-off layer into multiple layers.

``Effect of the invention'' As described above, according to the present invention, it is possible to prevent contamination from the upper antifouling wax coating layer and to form a new surface by peeling it off. The complicated man-hours required for this process are no longer necessary, and its convenience is of extremely high practical significance.

[Brief explanation of the drawing]

Figure 1 is a cross-sectional view of the layers of the antifouling wax coating film of the present invention at the time of formation, Figure 2 is a cross-sectional view of the layers of the antifouling wax coating of the present invention at the time of renewal, and Figures 3a and b are pores of the antifouling wax coating of the present invention. FIG. 2 is an explanatory diagram of a thin film. 1... Surface to be antifouled, 2... Basic antifouling wax layer, 3... Thin film, 3a... Holes, 4... Antifouling wax coating layer, 5... Contaminant organisms and slime.

Claims (1)

[Scope of utility model registration request] The base antifouling wax coating layer applied to the surface to be antifouled is covered with a perforated thin film such as plastic, an antifouling wax coating layer is formed on the thin film, and a top coat antifouling based on this thin film is applied. An antifouling wax coating film characterized by being formed by laminating wax coating layers as necessary.