JPH03286850A - Patterned laminated molded body - Google Patents

Abstract

PURPOSE:To create a novel pattern on a gel coat layer by forming the gel coat layer containing color pigment and a fibrous filler with specific length having a color different from that of the pigment. CONSTITUTION:A gel coat layer 1 is formed by coating a mold with a mixture prepared by adding 1.0 pts.wt. of white pigment and 2 pts.wt. of a gray fibrous filler 2 having the length of 0.1-1mm to 100 pts.wt. of a transparent bisphenol type unsaturated polyester resin (gel coat resin) and further adding a curing agent and a curing accelerator in a thickness of 0.4mm by a spray gun and curing the coating layer under heating. A rear reinforcing FRP layer is formed by applying and laminating an isophthalic acid type unsaturated polyester resin and a glass fiber and curing the formed coating layer. A molded body is finally removed from a mold to be completed. The molded body thus obtained develops the pattern shown by a drawing. The gel coat layer has sufficient concealing properties to conceal the reinforcing FRP layer the rear.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a large MA-like stamped laminate molded product in which a pattern is formed using a pigment and a colored fiber filler for use in bathtubs, washing areas, counters, kitchen counters, etc.

BACKGROUND OF THE INVENTION Conventionally, as shown in FIG. 3, this type of molded product has been composed of a monochrome colored gel coat layer 4 made of polyester resin and a fiber reinforced plastic (hereinafter abbreviated as FRP) layer 5 for reinforcing the back surface. there was. This monochrome colored gel coat 14 had a hiding property and had the effect of hiding the FRP layer 5 on the back side. However, the surface of the molded product was uniform and monochromatic.

Problems to be Solved and Attempted by the Invention With such a conventional configuration, only a flat, monochromatic molded body could be produced, and a patterned molded body could not be obtained. The present invention solves these problems and aims to provide a molded article with a pattern using a simple gel coat composition.

Means for Solving the Problem In order to solve this problem, the patterned laminate molded article of the present invention has a color pigment and a length O, 1 of a color different from the color of the color pigment.
A kale coat layer containing a fibrous filler having a thickness of 1 mm or more and 1 mm or more is formed on the FRP layer for reinforcing the back surface.

Effect: Due to this structure, by forming a gel coat layer containing a colored pigment and a fibrous filler with a length O, 1w or more and 1m or less in a color different from the color of the pigment, the gel coat layer creates a new pattern. I will do it. Furthermore, since a colored pigment is added, the gel coat layer has strong hiding properties and hides the FRP layer for reinforcing the back surface. As a result, a laminate molded product with a novel pattern can be obtained with a simple structure similar to the conventional one.

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

As shown in FIG. 1, the gel coat layer 1 consists of 100 parts by weight of a transparent bisphenol-based unsaturated polyester resin (gel coat resin), 1.0 parts by weight of a white colored pigment, and a gray color having an average length of 0.5 parts by weight. Add 2 parts by weight of fibrous filler 2,
Furthermore, a mixture containing a predetermined amount of a curing agent and a curing accelerator is applied to the mold with a spray gun to a thickness of 0.4 mm, and cured by heating at 70°C for 30 minutes. FR for back reinforcement
P layer 3 is made by coating and laminating isophthalic acid-based unsaturated polyester resin and glass fiber using the spray amplifier method.
It was cured at °C for 30 minutes. Finally, the molded body is released from the mold and completed.

The molded article thus obtained exhibited a pattern as shown in FIG. Moreover, the gel coat layer had sufficient hiding properties and concealed the reinforcing FRP layer on the back side.

As the fibrous filler 2, in this example, ethyl cellulose fibers cut into 0.5 lengths and colored gray were used; however, as the fibrous filler, nylon fibers,
Organic fibers such as acrylic fibers, inorganic fibers such as glass fibers and carbon fibers, and metal fibers such as stainless steel can be used.

When the fiber length was shorter than 0.1 am, a pattern did not appear, which was not preferable. On the other hand, if the fiber length was longer than 1 mm, the fibers would become entangled in the gel coat resin 1 or easily peel off from the back reinforcing FRP layer 3, which was unsuitable.

The ratio of the fibrous filler to 100 parts by weight of the gel coat resin was preferably 0.01 parts by weight or more and 10 parts by weight or less. More preferably, it is 0.1 parts by weight or more and 5 parts by weight or less. If the amount of fibrous filler is too small, the colored pigment will hide the fibers and the pattern of the fibers will not be visible at all. On the other hand, when there was too much fibrous filler, the surface condition of the gel coat resin was poor, curing was incomplete, and performance deteriorated, such as reduced adhesiveness. In this way, by adjusting the addition ratio of the fibrous filler to an appropriate ratio, it was possible to maintain the same performance as the conventional monochromatic colored gel coat.

Further, when dispersing the fibrous filler in the gel coat resin, adding a small amount of surfactant etc. resulted in uniform dispersion.

As in this example, by adding a colored pigment and a fibrous filler colored differently from the pigment, various patterns could be created. In addition, in order to create this patterned laminate, it is possible to obtain a molded product with almost the same performance as a conventional single-color molded product at a low cost and with a simple construction method. did it.

Effects of the Invention As is clear from the description of the embodiments above, according to the patterned laminate molded article of the present invention, colored pigments and fibers of a color different from the color of the colored pigments having a length of 0.1 mm or more and 1 circle or less By using a gel coat layer containing a shaped filler, it is possible to obtain a novel pattern with the same simple laminate structure and manufacturing method as in the past.

[Brief explanation of drawings]

FIG. 1 is a partial sectional view of the patterned laminate molded product of the present invention, and FIG.
The figure is a plan view showing the pattern of the present invention, and FIG. 3 is a partial sectional view of a conventional laminated molded product. 1... Gel coat layer, 2... Fibrous filler, 3... FRP layer during back reinforcement.

Claims (1)

[Claims] Pigment for coloring and length 0.1 of a color different from the color of the pigment
A patterned laminate molded product in which a gel coat layer containing a fibrous filler with a thickness of 1 mm or more and 1 mm or less is formed on a back reinforcing layer made of fiber reinforced plastic.