JPH0455880B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a method for surface treatment of flaky fibrous covering materials such as calligraphy, painted fabrics, etc.

Conventional Technology In recent years, for the purpose of decoration and long-term preservation, it has become common practice to apply surface treatments to flaky fibrous covering materials such as calligraphy and painted fabrics by laminating or coating them to form a transparent hard protective film. I started to be able to do it.

Conventionally, such surface processing methods include, for example, as shown in FIG.
A thermosetting resin such as an unsaturated polyester resin was applied and cured to form a transparent hard protective film 3.

Also, by covering the material such as a torn picture with an undercoat paint, and then applying a topcoat paint on top of it,
There is a method that prevents the material from rolling up (Japanese Patent Laid-Open No. 62-62800).

Problems to be Solved by the Invention However, when a thermosetting resin such as an unsaturated polyester resin is applied directly onto a fibrous covering material as in the past, the thermosetting resin is applied to the fibrous covering material. This caused problems such as the background pattern on the back side appearing to stand out, and pigments and dyes bleeding into the background, resulting in a poor finish.

Furthermore, in the invention described in the above publication, materials such as torn pictures are covered with double layers of paint, but even in this case, the upper paint penetrates into the lower paint, resulting in bleeding, etc. There are drawbacks that arise. Further, in this invention, since the surface of the material is simply coated with paint, there is a problem in that the upper paint surface becomes uneven, causing diffused reflection and distorting the image. Furthermore, the paint on the underside was simply used to prevent the paint from rolling up, and had the disadvantage of being applied deeply over the entire surface.

The present invention aims to solve these problems.

Means for Solving the Problems The present invention provides a method that does not penetrate into the flaky fibrous covering material such as calligraphy and paintings adhered to a substrate, and becomes transparent after curing. A film-forming agent such as a vinyl acetate adhesive is applied, a cured transparent film is formed by the film-forming agent over the entire surface of the fibrous covering material, and then a compatibility agent is mixed with a sealer on the transparent film. After coating the intermediate layer made of this affinity agent, a thermosetting resin such as unsaturated polyester resin is coated to cause a curing reaction to form a hard base layer, and the surface is further made unsaturated. It is characterized in that it is covered with a transparent hard protective film such as polyester resin, the surface of the protective film is smoothed with a smooth film, and the film is removed after the hard protective film is cured.

Effects In this invention, first, an affinity agent mixed with a sealer is applied onto a film forming material that is applied to a fibrous covering material and cured, and then a thermosetting resin such as an unsaturated polyester resin is applied on top of the film forming material. The intermediate layer of the compatibilizer prevents the upper resin from penetrating into the film forming agent side, resulting in a product free from bleeding and the like. Furthermore, since the thermosetting resin is applied twice on the intermediate layer, a deep layer can be obtained.
Moreover, since the surface of the upper resin is smoothed through a film, the image is not distorted by diffused reflection.

Embodiment An embodiment of the present invention will be described below with reference to the drawings.

First, as shown in Figure 2, watercolors, crayons,
A flaky fibrous covering material 5 such as drawing paper or Japanese paper on which a design 4 is drawn in ink or the like, and a wooden substrate 6 such as plywood are prepared.

Then, a vinyl acetate adhesive that is compatible with the wooden substrate 6 is applied to the surface of the wooden substrate 6 to form an adhesive layer 7, and then the fibrous covering material 5 is placed with the pattern 4 facing up. Lay it on the wooden substrate 6. Then, the wooden substrate 6 layered in this way
and the fibrous covering material 5 are pressed together by applying a pressure of 1 to 1.5 tons using a press (not shown).

Next, a film-forming agent is prepared by diluting the vinyl acetate adhesive twice with clear water, and the film-forming agent is applied to the roller 8a as shown in FIG.
The coating material is coated on the entire surface of the fibrous covering material 5 by a method and air-dried. Note that the film forming agent may be sprayed using a spray gun. This film forming agent is
It hardens without penetrating the fibrous covering material 5, and becomes transparent when completely cured, forming a cured transparent film 9 on the surface of the fibrous covering material 5, as shown in FIG.

The film forming agent is required to have properties such that it does not penetrate into the fibrous covering material 5 and becomes transparent after curing. In addition to the vinyl acetate adhesive described above, gelatin, for example, can be considered as a material having such properties.

In the next step, an affinity agent mixed with an equal amount of a two-component polyurethane sealer is applied onto the cured transparent film 9 using a spray gun, etc., as shown in FIG. to form the intermediate layer 10. After the above-mentioned affinity agent has hardened to such an extent that it does not stick to the fingertip when touched with a finger, a three-component thermosetting unsaturated polyester resin containing paraffin as a thermosetting resin is applied with a brush onto the above-mentioned intermediate layer 10. to cause a curing reaction to form a transparent hard base layer 1.
form 1. Further, the surface of the hard underlayer 11 thus obtained is polished to an appropriate roughness by using a sander (not shown). This polishing operation removes paraffin that has separated and floated near the surface of the hard underlayer 11.

The final step is film processing. This film processing is carried out as follows. First, an unsaturated polyester resin having the same composition as above is poured onto the hard base layer 11. However, in this case, use one that does not contain paraffin to give the work a glossy shine. Then, as shown in FIG. 5, a pressing member 14 is prepared by pasting a glossy film 13 such as vinyl chloride or cellophane on a rectangular frame 12, and the pressing member 14 is placed on the wooden substrate 6. , the hard base layer 11 is covered with the film 13. In that case,
Heat is applied to the film 13 in advance to sufficiently smooth out wrinkles on the surface. Then, as shown in FIG. 6, the roller 8b is rolled over the film 13 to spread the unsaturated polyester resin evenly over the hard base layer 11, smooth the surface, and complete the curing reaction. Leave film 13 as it is until the end. Then, as shown in FIG. 7, the hard base layer 11
The shape of the back surface of the film 13 is transferred to the transparent hard protective film 15 formed on the outside of the film 13 to obtain a glossy surface shape. Incidentally, when a transparent hard protective film 15 without gloss is required, it is sufficient to simply use a matte film 13.

Further, by applying the thermosetting resin, that is, the unsaturated polyester resin in double layers as in this embodiment, a deep external shape in which the hard base layer 11 and the transparent hard protective film 15 are laminated can be obtained. It becomes like this.

Effects of the Invention As described above, in this invention, first, an affinity agent mixed with a sealer is applied on a film forming material that is applied to a fibrous covering material and cured, and then an unsaturated polyester resin, etc. Since the thermosetting resin is applied, the intermediate layer of the compatibilizer prevents the upper resin from penetrating into the film forming agent side, resulting in a product free of bleeding and the like. Furthermore, since the thermosetting resin is applied twice on the compatibility agent layer, a deep layer can be obtained. Furthermore, since the surface of the upper resin is smoothed through the film, it is possible to obtain the effect that the image is not distorted by diffused reflection.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing a state in which a film forming agent is applied on a fibrous covering material adhered to a wooden substrate, and Fig. 2 shows a state in which the wooden substrate and fibrous covering material are separated. Fig. 3 is a cross-sectional view showing a cured transparent film formed on a fibrous covering material, and Fig. 4 shows an unsaturated polyester resin applied and cured on the cured transparent film. FIG. 5 is an exploded perspective view showing the state in which the pressing member is placed on the hardened foundation layer shown in FIG. 4. FIG. 7 is a sectional view showing a completed state, and FIG. 8 is a sectional view showing a conventional example. 5... Flaky fibrous covering material, 6... Wooden substrate,
9... Cured transparent film, 10... Compatibility agent intermediate layer,
11...Hard base layer, 13...Film, 15...
...Transparent hard protective film.

Claims (1)

[Claims] 1. Apply a film-forming agent such as a vinyl acetate adhesive that does not penetrate into the fibrous covering material and becomes transparent after curing over the flaky fibrous covering material such as calligraphy and paintings that is adhered to the substrate. After applying the film-forming agent and forming a cured transparent film over the entire surface of the fibrous covering material, an compatibility agent mixed with a sealer is applied on top of the transparent film, and then an intermediate layer consisting of this compatibility agent is applied. A hard base layer is formed by coating a thermosetting resin such as an unsaturated polyester resin on top of the layer and causing a curing reaction, and then covering the surface with a transparent hard protective film such as an unsaturated polyester resin. A method for surface processing a flaky fibrous covering material, which comprises smoothing the surface of the protective film through a smooth film and removing the film after the hard protective film has hardened.