JPS582826B2 - Plate with edge treatment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a plate body which has been subjected to end surface treatment, which is mainly embodied in a desk top plate for use in a laboratory, a science laboratory, etc.

Desk tops, experiment tables, etc. used in laboratories, science rooms, etc. usually have a plaster board fixed to their tops, and the tops and sides are coated with hard, corrosion-resistant polyester resin, etc. It had been.

However, there was a problem in that the coating resin peeled off or cracked, especially at the side portions, due to expansion and contraction due to changes in humidity, temperature, etc.

An object of the present invention is to provide a plate that can solve these problems.

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment in which the present invention is embodied in a desk top plate used in a laboratory or the like will be described below with reference to the drawings.

First, to explain the structure of this top board, 1 in the drawing shows the entire top board body with chamfered 2 corners, 3 is the base frame of the top board body 10, and a gypsum board 4 is attached to the top surface. Fixed.

5 is a colored epoxy resin coating applied to the upper surface and side end surfaces of the top plate main body 1; 6 is a polyester resin coating applied to the colored epoxy resin coating 5 on the side end surfaces of the top plate main body 1; 7 are two thin glass wools wound in two layers on this polyester resin coating film 6, with a polyester resin layer 8 interposed between them.

9 is a polyester resin coating film applied on glass wool I, and is constructed by applying two coats.

10 is a colored polyester resin coating film applied on this polyester resin coating film 9.

Next, to explain the surface treatment method for the top plate configured in this way, first, the gypsum board 4 is adhered and fixed, and the top surface and side end surfaces of the top plate main body 1, which have been chamfered, are polished. Apply putty to make it smooth, and if there are holes or other depressions, putty is applied there.

Next, apply a colored epoxy resin liquid mixed with a room-temperature curing agent to the top surface and side end surfaces of the top plate body 1, and leave it for an appropriate period of time to allow it to harden. Sand lightly with a fine abrasive.

Next, a polyester resin solution mixed with a room temperature curing agent (for example, product name: Polygen, manufactured by Gengen Kagaku Co., Ltd. is used) is applied to the polished side edge portion, and before it hardens, A piece of band-shaped glass wool 7 is wound and attached.

After this polyester resin 6 is cured, 8 liquids of polyester resin similar to those described above are further coated on this glass wool 7, and another sheet of band-shaped glass wool 7 is wound and attached, and the polyester resin 8 is cured.

Therefore, both the glass wools 7 are wound and adhesively fixed to the side surfaces of the top plate main body 1.

Next, the surface of this glass wool is lightly polished with a 120-grit abrasive, and the same 9-part polyester resin as above is applied to the polished surface. After hardening, light polishing is performed again, and the same 9-part polyester resin is applied. and harden.

Therefore, the glass wool 7 is the same as this polyester resin coating 9.
covered by.

Finally, the polyester resin coating film 9 is polished and finished by applying 10 liquids of colored polyester resin to its surface.

As described above, in the plate of the present invention, end face treatment can be easily performed without using any special tools or methods.

In order to make the coating film hard, it is preferable to use the epoxy resin liquid or polyester resin liquid that has not been diluted with a diluent.

Further, each of the above-mentioned polishing steps is to make the resin surface smooth and to improve the adhesion of the resin liquid to be applied next.

The treated coating film on the end surface of the top plate side finished in this way is coated with double glass wool 7 which is wound and fixed on the end surface of the top plate main body 1.
Since it is applied through the glass wool 70 portion, the top plate main body 1 has a good grip on the side end surface and can be made strong, and even if the top plate main body 1 expands and contracts due to temperature and humidity, the expansion and contraction will be absorbed by the glass wool 70 portion. In particular, since it is absorbed by the inner glass wool portion, it is possible to reliably prevent the coating from peeling or cracking.

Furthermore, after curing, epoxy resins and polyester resins have high hardness, are resistant to acids and alkalis, and are resistant to heat, so tabletops treated with this treatment can be used in places where chemicals and fire are handled, such as in laboratories. It is suitable for

Incidentally, the results of various experiments on the top plate side end surface in the above embodiment are shown in a table in FIG.

◎ if there are no abnormalities in the paint film, ○ if there is slight whitening, loss of gloss, or discoloration in the paint film, or if the paint film softens slightly when soaked in a liquid but immediately returns to its original state when removed and left to stand. , the paint film may blister slightly and become white.
If there is loss of gloss or discoloration, or if it softens and swells slightly in the solvent, and the amount of restoration decreases when taken out and left, ○. △ if defects occur and slight rust is observed, or if the solvent softens or swells and is difficult to restore; if there are significant defects such as blistering, whitening, discoloration, softening, embrittlement, or rust, or if the solvent When it dissolves, it is indicated by ×.

As described in detail above, the present invention provides at least two end faces of the plate.
Since the coating treatment is performed with hard synthetic resin such as polyester resin with sheets of glass wool interposed between them, the treated surface not only has excellent heat resistance and corrosion resistance, but is also unaffected by the expansion and contraction of the article due to temperature and humidity. This has the effect of stably maintaining the coating state.

Note that the present invention is not limited to the above embodiments,
It is also possible to embody it in the following manner.

(a) Embodying the present invention on other boards such as outside the large board of a desk, a laboratory bench, etc.

(Note) Use a polyester resin liquid instead of the epoxy resin liquid applied for the first time.

(c) Use epoxy resin as a finishing treatment.

(d) Use three or more layers of glass wool.

[Brief explanation of drawings]

Figure 1 is a partial cross-sectional view of the main body of the top plate, Figure 2 is a partially enlarged cross-sectional view showing the surface treatment structure, Figure 3 is a perspective view showing the base frame and glass wool, and Figure 4 is a view of the treated coating film. This is a table of experimental results. Top plate main body 1, polyester resin coating films 6, 9, 10, glass wool 7, polyester resin layer 8.

Claims (1)

[Claims] 1. A band-shaped glass wool layer is adhesively fixed to the end surface of a polished plate, and a coating layer of hard synthetic resin is provided to cover the glass wool layer, and at least two or more of the glass wool layers are applied. A plate body having an end surface treatment characterized in that it is composed of glass wool, and that a hard synthetic resin such as polyester is interposed between each glass wool.