JPH0526319U - Prepreg sheet for FRP - Google Patents

Abstract

(57) [Summary] [Purpose] To obtain a prepreg sheet for FRP which can easily and surely form a coated surface having a soft feeling even on a molded product having a curved surface. [Structure] A coating layer 3 is formed by applying a coating having a soft feeling by including plastic beads on one surface of a release paper 2, and the surface of the coating layer 3 is impregnated with a thermosetting resin 4. The prepreg sheet 1 is obtained by stacking the glass cloth 5 described above. This prepreg sheet 1 is punched and cut according to the surface shape of a molded product, and then laminated on the surface of a core material and cured by being heated and pressed. Is transferred to the surface of the thermosetting resin 4.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a prepreg sheet for FRP which can give a soft feeling to the surface of a molded product.

[0002]

[Prior Art]

 Generally, FRP (fiber reinforced plastic), which is made of glass fiber, carbon fiber, etc., thermosetting resin and filler, is lightweight and has high strength. Is used as. By the way, in the case of moldings made of such FRP, when the surface is painted or the surface is painted, it is common to print on the surface of the molded products by silk screen printing after molding. Target.

On the other hand, conventionally, an intermediate molding material obtained by impregnating a glass cloth or the like with a thermosetting resin such as an epoxy resin or an unsaturated polyester resin is generally known as a so-called prepreg sheet. This prepreg sheet is usually prepared by peeling off the release paper laminated as a support material and pasting it on the surface of the core material, pressing it with a mold and heating and curing.

[0004]

[Problems to be solved by the device]

 However, it is difficult to form a coating film by printing or painting on the surface of the molded product after molding, especially in the case of a molded product having a cubic curved surface. On the other hand, the prepreg sheet as described above is used for the surface of the core material. If the ink layer is provided on the surface of the prepreg sheet by using the method of sticking to the ink, there is a problem that the ink layer is easily damaged. Further, the above-mentioned conventional methods cannot meet the demand for finishing the surface of a molded product made of FRP to a coated surface having a soft feel.

The present invention has been made in view of the above circumstances, and even a molded product having a curved surface can easily and reliably form a coated surface having a soft feeling. It is intended to provide a prepreg sheet for FRP.

[0006]

[Means for Solving the Problems]

 The prepreg sheet for FRP according to the present invention is provided with a soft coating layer containing plastic beads on one side of a release paper, and a glass cloth impregnated with a thermosetting resin on the surface of this coating layer. A laminated prepreg sheet for FRP, which is coated with a soft feeling on the surface of the molded product at the same time as molding by stacking and heating and pressing the core material so that the coating layer becomes the outermost layer of the final molded product. The feature is that the work surface can be formed.

When it is desired to print a pattern, a pattern ink printing layer may be provided between the release paper and the paint layer in the above configuration.

[0008]

[Action]

 In the prepreg sheet according to the present invention, a coating material containing plastic beads is applied to one surface of the release paper, and a glass cloth impregnated with a thermosetting resin is laminated on the coating surface, and the coating layer is the final molded article. After being laminated on the surface of the core material as an outer layer, by heating and pressing, the paint on the release paper surface is transferred to the thermosetting resin surface at the same time as molding, and the surface of the molded product has a soft feeling. A coated surface is formed.

If a pattern ink printing layer is provided between the release paper and the paint layer, a partial pattern such as a mark can be attached to the surface of the molded product.

[0010]

【Example】

 Embodiments will be described below with reference to the drawings.

FIG. 1 is a layer configuration diagram of an FRP prepreg sheet according to a first embodiment of the present invention.

The prepreg sheet 1 of this embodiment is an acrylic paint having a soft feeling by including plastic beads on one side of a release paper 2 made of silicon (for example, "Daipla Coat Suede" manufactured by Dainichiseika Co., Ltd.). ) Is applied to a thickness of 30 μm or more using a coater to form a paint layer 3, and then the surface of the paint layer 3 is dried. A glass cloth 5 impregnated with a resin (epoxy resin) 4 is laminated.

This prepreg sheet 1 is applied to an FRP molded product having a curved surface such as a helmet or an instrument panel of an automobile, and is punched and cut in accordance with the surface shape of the molded product, and then, for example, glass. It is layered on the surface of a core made of fiber or epoxy. Then, when the mold is closed and heated and pressed, the prepreg sheet 1 on the front surface is cured, and the paint of the paint layer 3 on the surface of the release paper 2 is transferred to the thermosetting resin 4 surface. When the release paper 2 on the surface is peeled off, a molded product having a soft feeling on the surface is completed.

The coating layer 3 may be milky white (clear) or may be colored in various other colors to have an arbitrary hue.

FIG. 2 is a layer structure diagram of an FRP prepreg sheet according to a second embodiment of the present invention.

This embodiment shows an example in which a pattern such as a mark is formed on a part of the surface of a molded product. That is, in this example, the pattern ink print layer 6 is partially provided on one surface of the release paper 2, and the prepreg sheet 7 is obtained by forming the paint layer 3 made of paint having a soft feeling on the surface. There is. Since the other parts are basically the same as those of the first embodiment, the same reference numerals are attached to the drawings and the description thereof will be omitted.

In the above description, the acrylic paint was used as the paint having a soft feeling, but in addition, urethane paint (for example, "Daiplakot Soft" manufactured by Dainichi Seika) is used. Also, the same effect as described above can be obtained.

Further, in each of the above-mentioned examples, the one using the epoxy resin as the thermosetting resin was explained, but in addition, unsaturated polyester resin (for example, “Polymer” manufactured by Takeda Pharmaceutical Co., Ltd.), DAP resin, etc. Can be used.

Further, the present invention can be applied to not only helmets and instrument panels of automobiles but also exterior panels of home electric appliances such as televisions and coolers, and various ornaments.

[0020]

[Effect of the device]

 Since the present invention is configured as described above, even a molded product having a curved surface can easily and reliably form a coated surface having a soft feeling, thereby providing a soft surface. A molded product having a surface feel can be obtained.

[Brief description of drawings]

FIG. 1 is a layer configuration diagram of a prepreg sheet for FRP according to a first embodiment of the present invention.

FIG. 2 is a layer configuration diagram of a prepreg sheet for FRP according to a second embodiment of the present invention.

[Explanation of symbols]

 1,7 Prepreg sheet 2 Release paper 3 Paint layer 4 Thermosetting resin 5 Glass cloth 6 Pattern ink printing layer

Claims (2)

[Scope of utility model registration request] 1. A prepreg for FRP, which is obtained by providing a soft coating layer containing plastic beads on one surface of a release paper and laminating a glass cloth impregnated with a thermosetting resin on the surface of the coating layer. It is a sheet, and it is possible to form a soft coated surface on the surface of the molded product at the same time as molding by stacking and heating and pressing the core material so that the paint layer becomes the outermost layer of the final molded product. Characteristic prepreg sheet for FRP. 2. The prepreg sheet for FRP according to claim 1, wherein a pattern ink printing layer is provided between the release paper and the paint layer.