JPH04156327A - Manufacture of frp product - Google Patents

Abstract

PURPOSE:To obtain multi-colored, various different designs by scattering a first material and a second material in the named order on the surface of a transparent gel coat. CONSTITUTION:After a transparent gel coat 1 is applied to a mold K, a masking tape 2 is pasted on the outer circumference thereof. Then, on faces wherein the transparent gel coat has been applied, a transparent thermoset resin 3 substantially same as this gel coat is applied. Thereafter, a first material, for example a natural load stone 6 is scattered to form a desired design. Furthermore, on all of these faces, a second material, for example a load stone 7 having a grain size and a color and pattern different from those of the load stone 6 is scattered. The masking tapes then are removed, the thermoset resin 3 is caused to harden and a color gel coat is applied to the surface thereof to seal, followed by hardening. Thereafter, a reinforced fabric is laminated and hardened while it is impregnated with the aide of a resin.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a method for manufacturing FRP products, such as waterproof panties.

(Prior art) Generally, FRP products, such as waterproof pans used in bathrooms, are manufactured by hand-laying, in which gel coat is applied to a mold to a certain thickness, and reinforcing fibers are sequentially laminated on top of the gel coat while impregnated with resin. It is manufactured by At this time, as shown in FIG. 6, the decoration given to the waterproof pan P is determined by the sand sprinkled on the surface of the gel coat layer.

(Problem to be solved by the invention) As described above, the decoration given to the FRP product is uniquely determined by the material such as the sand that is sprinkled, and as a result, the entire surface has the same color pattern, The drawback was that it lacked a sense of design.

The present invention was made in view of these problems, and
To provide a method for manufacturing FRP products that enables decoration of RP products with multiple colors and various types of patterns.

(Means for Solving the Problems) The present invention involves applying a transparent gel coat to a mold, scattering a first material 1 to form a predetermined pattern on the coated surface of the transparent gel coat, and After spraying the second material, which has a different color pattern and particle size from the first material, over the entire surface including the patterned part formed by the material, the transparent gel coat is cured, and then the first material and the second material are The method is characterized in that a colored gel coat is applied to the surface on which the material has been sprayed and cured, and then a reinforcing layer is formed.

(Function) After applying transparent Kelco-I, the first material is sprinkled on the coated surface to form a predetermined pattern.

Then, after spraying a second material having a color pattern and particle size different from those of the first material over the entire surface including the portion where the first material is fitted, the transparent Kelcoat is cured. Next, a colored gel coat is applied to the surfaces of the sprayed first material and second material to seal them, and then the colored gel coat is cured. Furthermore, an FRP product is manufactured by forming a reinforcing layer.

As a result, it is possible to form multicolor and various patterns on the F Rl product by using the first material and the second material that are perforated.

(Example) Embodiments of the present invention will be described below with reference to the drawings.

First, after applying the transparent gel D-) 1 to the mold K of the waterproof pan P, a marking tape 2 is pasted (= 1) around the outside of it.Then, the coated surface of the transparent gel coat 1 surrounded by this marking tape 2 is A transparent thermosetting resin 3 similar to the transparent Kelcoat 1, such as polyester resin, is applied using a roller 4 (see (+) 1 in FIG. 1(a)).

Note that this thermosetting resin 3 is used to save the transparent gel coat 1, and is substantially the same as the transparent gel coat 1.

Next, crushed stone 6 obtained by crushing natural stone, which is the first material, is sprinkled on the surface coated with the thermosetting resin 3 through the chute 5 so as to form a checkerboard pattern (Fig. 2(a), (b)
)reference). The size of the crushed stone 6 is preferably 4 to 40 kg/n, and the amount of crushed stone 6 to be spread is preferably 1 to 3 kg/n.

Furthermore, crushed stone 7, which is a second material that is different in grain size and color pattern from the crushed stone 6 that was previously sprinkled on the entire surface of the thermosetting resin 3L-, including the pattern portion formed by scattering the crushed stone 6, is added. (Figure 3(a)).

(see (l))). Thereafter, the masking tape 2 is taken and put into a curing furnace (not shown), and the thermosetting resin 3 is cured.

When the thermosetting resin 3 is completely cured, colored gelcoe 1-8 is applied to its surface for sealing using a spray 9 (see FIGS. 4(a) and 4(b)), and then placed in a curing oven. The colored Kelcoat 8 of the lever is cured.

Once the colored gel coat 8 has finished curing, reinforcing fibers are impregnated with resin and laminated and cured in the same manner as before, and then a reinforcing frame is placed and the reinforcing fibers are laminated while being impregnated with resin. and harden.

The waterproof pant P is manufactured by forming such a reinforcing layer.

In this embodiment, the decorated pattern is described as a checkered pattern, but other patterns such as a polka dot pattern may be used, and the material to be scattered is not limited to crushed stone. Furthermore, it can be applied not only to waterproof pans but also to other FRP products.

(Effects of the Invention) As shown below, according to the present invention, the gel coat surface 6.
1. An FRP product with excellent design that can form multicolored and various patterns by sequentially dispersing the first material and the second material. can be manufactured.

[Brief explanation of the drawing]

The drawings illustrate an embodiment of the method for manufacturing an FRP product of the present invention, and are shown in FIGS. 1(a) and 4(b) to FIG. 4(a). (b) is a cross-sectional view and a schematic perspective view thereof showing each manufacturing process, FIG. 5 is an external view showing a waterproof pan manufactured by the present invention, and FIG. 6 is an external view showing a conventional waterproof pan. P... Waterproof pan (FRP product) 1... Transparent gel coat 6... Crushed stone (first material) 7... Crushed stone (second material) 8... Colored gel coat Figure 1 (a) ,,1! η (b) 271(a) to FIG. 3(a) to FIG. 4(a) FIG. 4(b), -near.

Claims (1)

[Claims] 1) Apply a transparent gel coat to a mold, sprinkle a first material to form a predetermined pattern on the coated surface of the transparent gel coat, and apply the first material to the entire surface including the pattern formed by the first material. After spraying a second material with a different color pattern and particle size from the first material, the transparent gel coat is cured, and then the first material is sprayed.
A method for producing an FRP product, which comprises applying a colored gel coat to the surface on which the material and the second material have been sprayed and curing it, and then forming a reinforcing layer.