JP4787984B2 - Colored film collection method - Google Patents

Description

  The present invention relates to a method of collecting a coating film formed on the surface of a carrier, and in particular, coloring paints such as decorative paintings and murals on outer walls, inner walls, ceilings, sculptures, etc. of old structures such as temples and shrines. The present invention relates to a method for collecting a membrane.

  Many old buildings such as temples and shrines have decorative paintings on their outer walls, inner walls, and ceiling. Such decorative paintings are important materials that convey the designs, techniques, art materials, etc. at the time of construction of temples and shrines. For this reason, at the time of restoration work for temples and shrines and restoration work for decorative paintings, trace information of decorative paintings and colored paint film pieces are often collected and analyzed.

  Most of the decorative colored coatings are composed of an initial coating film (initial coating film) and a coating film (surface layer coating film) that is overlaid on the coating film by a supplement. The surface coating is considered to have a lower historical value than the original coating. In the case of a colored coating consisting of the initial coating and the surface coating, after scratching off the surface coating, Only trace information is collected and analyzed.

  However, even if care is taken, there is a risk that the initial coating film and the base material may be damaged by tools such as keren that scrape off the surface coating film. In addition, the presence or absence or level of historical materials is not easily determined by the difference between the initial coating and the surface coating. Even a coating film that is judged to have no or low historical value may have a higher historical value later. However, the surface coating film once scraped becomes shattered and cannot be investigated.

On the other hand, a method for collecting all the colored coating films from the surface coating film to the initial coating film using a transparent resin-made transparent film made of a synthetic resin has been proposed (see Patent Document 1). The colored coating film peeled off by the transparent film with the pressure-sensitive adhesive can be stored in a state where the back surface of the initial coating film can be observed by lining it with the transparent film.
However, since the transparent film has high rigidity, when the surface of the carrier on which the decorative image is applied is not flat, the transparent film cannot be made to follow the surface of the carrier, and the colored coating film cannot be peeled off well. . Moreover, considering the performance of the current pressure-sensitive adhesive, it is difficult to completely remove the colored coating film using the transparent film.

On the other hand, a method has been proposed in which a colored coating film is peeled off using an extremely thin paper (see Non-Patent Document 1). However, the method described in Non-Patent Document 1 is intended for coloring and fragile coatings that are colored on a carrier with a sachet base, coloring and robust coatings that are colored directly on the carrier. It is difficult to strip off.
JP 11-139100 A ([0010]) Akira Yamauchi et al., “Investigation and Data Collection of Building Decorations in Demolition Repair-Stripping Treatment of Colors”, Abstracts of the 27th Annual Meeting of the Cultural Properties Conservation and Restoration Society 2005, page 162

  The present invention has been made to solve such a problem, and the purpose thereof is coloring that can collect a coating film regardless of the shape of the carrier, the presence or absence of a ground flour, and the fastness of the coating film. It is to provide a method for collecting a coating film.

The method of collecting a colored coating film according to the present invention is as follows:
a) applying a glue liquid by applying a synthetic fiber paper to the surface of the coating applied to the surface of the carrier, and soaking the glue into the coating film and the synthetic paper;
b) applying a coarse natural fiber cloth from above the synthetic fiber;
c) a step of transferring the coating film from the carrier to the synthetic paper by peeling off the synthetic fiber and the natural fiber cloth.

The method of the present invention is suitable as a method for collecting a colored coating film of a decorative painting drawn with glue and pigment mainly on the inner wall, outer wall, and ceiling of an old building such as a temple and shrine. It is also useful as a method for collecting coatings such as single-color coating and lacquer coating with red. Moreover, it is applicable also to the method of extract | collecting the coating film of a synthetic resin coating according to a state.
Accordingly, the carrier of the present invention includes the outer wall of the wooden box, the sculpture, etc. in addition to the inner wall, outer wall, and ceiling of the building.
The synthetic fiber paper is used as a connecting member for bringing the coating film and the natural fiber cloth into close contact with each other. Examples thereof include paper made of rayon fiber and paper made of polyester fiber.
The natural fiber cloth is easy to permeate the glue liquid and should be strong. For example, a coarse cotton cloth such as a cold koji is preferable. A natural fiber cloth having a rough texture is also advantageous in that it easily follows the shape of the carrier.

  In the method of collecting a colored coating film according to the present invention, after transferring the coating film to the synthetic fiber paper, a fixing solution is applied or sprayed on the back surface of the coating film, and the coating film together with the synthetic fiber paper and the natural fiber cloth A step of affixing to the transfer stand, and hot water is applied over the natural fiber cloth to melt the glue soaked in the synthetic fiber paper and the natural fiber cloth, from the coating film affixed to the transfer stand You may make it further provide the process of removing synthetic fiber and the said natural fiber cloth. These steps are steps for storing the collected coating film.

Since the coloring paint collecting method of the present invention mainly uses glue as an adhesive material for peeling the paint film from the carrier, the color of the paint film is not impaired. In addition, since the coating film was semi-dried after being soaked in the coating film, it was peeled off from the carrier, so that the colored coating film was drawn without damaging the carrier and with almost no coating film remaining on the carrier. Can be peeled off. For this reason, the pattern of the back surface of the coating film (the surface that is in close contact with the carrier) can also be observed.
Furthermore, in the chromatic coating film collecting method according to the present invention, the collected coating film is pasted back onto a transfer stand or the like, and subjected to a storage process, whereby the pattern and the like of the coating film can be held as they are.

  Several embodiments of the method for collecting a colored coating film of the present invention will be described with reference to the drawings.

Here, description will be made by taking as an example an operation of collecting a colored coating film 12 of a decorative image drawn using glue and pigment on a rectangular plate-shaped carrier 10 as shown in FIG.
First, before the work is performed, dust is removed from the surface of the colored coating film 12 using a soft brush or the like. Next, we will investigate the current state of decorative paintings. In this investigation, the state of the colored coating film 12, for example, whether it is layered or powdery, the presence or absence of peeling, and the state of deterioration such as fading are confirmed. Then, based on the survey results, the procedure and specifications for the next work are determined. After determining the work procedure and specifications, a test is performed on a part of the colored coating film to be processed, and if there is no problem, the coating film collecting operation is started with the determined work procedure and specifications.

In the coating film collecting operation, first, an acrylic resin film 13 (see FIG. 4) is formed on the surface of the colored coating film 12 (FIG. 1).
The formation of the acrylic resin film 13 is carried out when it is incorporated seen that the coating film 12 may flow collapses during hot water seat to be the case and later the first is colored coating 12 (novice) (see FIG. 8). “The first colored coating film” means a state in which the decorative painting has not been repaired later and no resin film is formed on the surface of the colored coating film 12. When a resin film or the like is confirmed on the surface of the decorative image, the acrylic resin film is not formed.

The acrylic resin film 13 is formed by applying an acrylic resin solution to the surface of the colored coating film 12 with a brush and drying it. The application of the acrylic resin solution is performed while avoiding where the carrier 10 is exposed as much as possible. The acrylic resin film 13 is formed mainly for the purpose of protecting the colored coating film 12 by imparting water resistance to the surface of the colored coating film 12, but it is not necessary to have sufficient water resistance to repel water. As will be described later, the acrylic resin solution is applied roughly so that there are some gaps so as not to completely prevent the coating 13 glue from penetrating into the colored coating film 12.
As the acrylic resin solution, a solution having a concentration of approximately 15 to 11% in which an acrylic resin 45% solution and water are mixed at a volume ratio of 1: 2 to 1: 3 is used. The acrylic resin solution is prepared at a concentration that does not give gloss to the surface of the coating film 12 in consideration of the required degree of water resistance.

Next, the synthetic fiber 16 is applied to the surface of the colored coating film 12, and the glue liquid is applied from above the synthetic paper 16 while avoiding the exposed portion of the carrier 10 as much as possible (FIG. 2). The glue liquid is applied so as to penetrate both the synthetic fiber 16 and the colored coating film 12.
Actually, the colored coating film 12 after being covered with the synthetic fiber paper 16 is not visible from the outside, but for the convenience of explanation, FIG. 2 is drawn with the colored coating film 12 visible. The same applies to the other FIGS. 3 to 5, 7, and 8 used in the following description.
The synthetic fiber 16 is used as a connecting member for bringing the cotton cloth 18 and the colored coating film 12 used in the next step into close contact. As the synthetic fiber 16, for example, rayon fiber or polyester fiber paper can be used. It is preferable to use appropriate synthetic paper 16 depending on the peeled state of the chromatic coating film 12 (e.g., ease of collection). For example, when the coating film 12 is somewhat robust, a synthetic fiber paper made of polyester fiber having a high tensile strength is used. It is good to use.
The said glue liquid is produced | generated by dissolving 10-15g of glue with respect to 90cc of water. The concentration of the glue liquid is adjusted in consideration of the state of the colored coating film 12 and the permeability. The glue used is a refined and adhesive.

Subsequently, a cotton cloth 18 having a higher tensile strength and coarser texture than that of the synthetic fiber paper 16, such as a cold koji, is applied to the synthetic paper 16 coated with the glue liquid. Then, the glue liquid is applied to the cotton cloth 18, and the cotton cloth 18, the synthetic fiber 16 and the colored coating film 12 are soaked with the glue liquid (FIG. 3).
4A and 4B show a state where the application of the synthetic fiber 16 and the cotton cloth 18 is completed, in which FIG. 4A is a plan view and FIG. 4B is a cross-sectional view. As shown in FIG. 4 (b), an acrylic resin film 13, glue component 14, synthetic fiber 16, and cotton cloth 18 are laminated on the surface of the colored coating film 12.

After leaving for a while in the state shown in FIG. 4, the surface of the colored coating film 12 to the cotton cloth 18 is dried, and the synthetic coated paper is expected when the colored coating film 12 is not dried (semi-dried state). 16 and the cotton cloth 18 are drawn together, and the colored coating film 12 is peeled off from the carrier 10 (FIG. 5).
At this time, for the portion where the stripping of the colored coating film 12 is insufficient, the glue is applied to the surface of the portion, the synthetic fiber 16 and the cotton cloth 18 are applied back, and drying is promoted with a dryer or the like again. Strip off.
The surface of the peeled chromatic coating film 12 is covered with the synthetic fiber 16 and the cotton cloth 18, but the back surface is not covered with anything and can be observed. Therefore, when observing the pattern on the back surface of the colored coating film 12 or collecting trace information of the colored coating film 12 near the back surface, it is performed at this stage. When storing for the trace confirmation of the back surface of the colored coating film 12, the back surface of the colored coating film 12 is impregnated and injected with a glue liquid whose concentration is adjusted, and is fixed. It is not necessary to affix or store the trace-preserved product on a transfer table 22 or Japanese paper, which will be described later. However, when a stored product for trace confirmation is displayed or used for portable use, it can be temporarily fixed to the plate-like member.

  Thereafter, the fixing solution 22 is applied to the back surface of the peeled coating film 12 (FIG. 6). As the fixing solution, for example, a fast-drying vinyl acetate adhesive mixed with a 15% concentration acrylic resin solution and prepared to a concentration that allows good brush travel is used. The chromatic coating film 12 to which the fixing solution has been applied is applied to the transfer table 22 or Japanese paper and dried and fixed (FIG. 7).

  Subsequently, hot water is sufficiently applied over the cotton cloth 18 covering the surface of the colored coating film 12 attached to the transfer table 22 (FIG. 8) to return the glue liquid to a liquid state. At this time, since the surface of the colored coating film 12 is covered with the acrylic resin film 13, the colored coating film 12 can be protected from hot water. Subsequently, the cotton cloth 18 and the synthetic fiber 16 are removed together with the glue liquid that has been returned to the liquid state and dried (FIG. 9).

The fixing of the colored coating film 12 attached to the transfer table 20 is confirmed. When the coating film 12 is not firmly fixed, the coating film 12 is peeled off and finished.
For example, the peeling prevention is performed by injecting the glue liquid with a fine brush from the gap between the transfer stand 20 and the colored coating film 12 formed by lifting the colored coating film 12, and when the colored coating film 12 becomes slightly soft, Perform by pressing down. When peeling off is performed, a cloth nori solution is applied around the colored coating film 12 to dilute the glue liquid protruding from the coating film. This prevents gloss and wet color (state where brightness decreases and darkens) due to the resin component of the glue liquid protruding from the coating film.
When the coating film 12 is pressed down to prevent the peeling, the synthetic fiber paper is applied to the surface of the coating film 12 and the excess glue liquid is sucked off with the blotting paper. By applying the synthetic fiber paper, the coating film 12 can be prevented from sticking to the blotting paper.

The peeling-off operation is repeated until the colored coating film 12 is securely fixed on the transfer table 20 while confirming whether there is any glue stain or the like.
For example, a glue solution used for peeling off is prepared by dissolving 9 g of unrefined glue in 90 cc of water and adding an appropriate amount (less than 10%) of fermentation glue. “Fermentation glue” refers to a fermented product in which the glue liquid is stored.
As for the cloth nori solution, boiled 5 g of manju nori in 1000 cc of water and used.
FIG. 10 shows a state (completed state) in which the chromatic coating film 12 is attached to the transfer table 20 via the fixing liquid 22. The colored coating film 12 is stored in this state.

In Example 2, as an example, an operation of collecting the colored coating film 12 on the rising curved surface such as engraving coloring drawn using a pigment on the hemispherical container-shaped carrier 30 as shown in FIG. explain. In addition, the same code | symbol is attached | subjected to the same part as Example 1, and detailed description is abbreviate | omitted.
First, as in Example 1, before the work is performed, dust is removed from the surface of the colored coating film 12 using a soft brush or the like, and the current state of engraving coloring is investigated.
Subsequently, an acrylic resin film 13 (see FIG. 14) is formed on the surface of the colored coating film 12 (FIG. 11). Again, if the formation of the acrylic resin film 13 is to be incorporated seen that the coating film 12 may flow collapses during hot water seat colored paint film 12 is to be described later or when the first (beginner) (see FIG. 8) Do.

  Next, the synthetic fiber 16 is applied to the surface of the colored coating film 12, and the glue liquid is applied from above the synthetic paper 16 while avoiding the exposed portion of the carrier 10 as much as possible (FIG. 12). Here, since the surface of the carrier 10 is a curved surface, a plurality of strip-shaped paper pieces are used as the synthetic fiber 16, and the plurality of strip-shaped paper pieces cover the surface of the carrier 10.

Subsequently, a cotton cloth 18 having a higher tensile strength and coarser texture than that of the synthetic fiber paper 16, such as a cold koji, is applied to the synthetic paper 16 coated with the glue liquid. Like the synthetic fiber 16, a plurality of strip-shaped cloth pieces are used for the cotton cloth 18. Then, the glue liquid is applied to the cotton cloth 18, and the cotton cloth 18, the synthetic fiber 16 and the colored coating film 12 are soaked with the glue liquid (FIG. 13).
FIG. 14 shows a state in which the application of the synthetic fiber 16 and the cotton cloth 18 is completed, (a) is a perspective view, and (b) is a cross-sectional view. As shown in FIG. 14B, an acrylic resin film 13, glue component 14, synthetic fiber 16, and cotton cloth 18 are laminated on the surface of the colored coating film 12.

After leaving in the state shown in FIG. 14 for a while, the surface of the colored coating film 12 to the cotton cloth 18 is dried, and when the colored coating film 12 is in a semi-dried state, the synthetic fiber 16 and the cotton cloth 18 are drawn together. The colored coating film 12 is peeled off from the carrier 10 (FIG. 15). As described above, in Example 2, the laminate 32 of the colored coating film 12, the acrylic resin film 13, the glue component 14, the synthetic fiber 16, and the cotton cloth 18 that has been peeled off has a shape (semispherical container) along the surface shape of the carrier 30. Shape).
The surface of the peeled chromatic coating film 12 is covered with the synthetic fiber 16 and the cotton cloth 18, but the back surface is not covered with anything and can be observed. Therefore, also in the Example, the pattern on the back surface of the colored coating film 12 can be observed, and trace information of the colored coating film 12 near the back surface can be collected.

  Thereafter, a strip-shaped Japanese paper 34 is attached to the entire back surface of the peeled laminate 32 using the fixing liquid 22 (FIG. 16). As the fixing solution, for example, a fast-drying vinyl acetate adhesive mixed with a 15% concentration acrylic resin solution and prepared to a concentration that allows good brush travel is used. The Japanese paper 34 is pasted so as to become familiar with the ridges on the back surface of the laminate 32, and is dried and fixed. This Japanese paper 34 becomes a transfer table.

Next, hot water is sufficiently applied from the surface of the cotton cloth 18 that covers the surface of the colored coating film 12 affixed to the Japanese paper 34 (FIG. 17), and the cotton cloth 18 and the synthetic fiber 16 or the liquid glue on the surface returned to the liquid state. And removed and dried (FIG. 18).
Then, fixing of the colored coating film 12 attached to the Japanese paper 34 is confirmed. When the coating film 12 is not firmly fixed, the coating film 12 is peeled off and finished.

Explanatory drawing which shows the acrylic resin film formation process of the coloring coating-film collection method which concerns on Example 1 of this invention. Explanatory drawing which shows the bonding process of synthetic fiber paper. Explanatory drawing which shows the sticking process of natural fiber cloth. It is explanatory drawing which shows the state which affixing of synthetic fiber paper and natural fiber cloth was completed, (a) is a top view, (b) is sectional drawing. Explanatory drawing which shows the peeling process of a coating film. Explanatory drawing which shows the application | coating process of the fixing solution to the back surface of a coating film. Explanatory drawing which shows the sticking process of the coating film to a transfer stand. Explanatory drawing which shows the process of pouring hot water on a natural fiber cloth. Explanatory drawing which shows the removal operation | work of a chemical fiber paper and a natural fiber cloth. It is explanatory drawing which shows the sticking completion state of the coating film with respect to a transfer stand, (a) is a top view, (b) is sectional drawing. Explanatory drawing which shows the acrylic resin film formation process of the coloring coating-film collection method which concerns on Example 2 of this invention. Explanatory drawing which shows the bonding process of synthetic fiber paper. Explanatory drawing which shows the sticking process of natural fiber cloth. It is explanatory drawing which shows the state which affixing of synthetic fiber paper and natural fiber cloth was completed, (a) is a perspective view, (b) is sectional drawing. Explanatory drawing which shows the peeling process of a coating film. It is explanatory drawing which shows a process which affixes Japanese paper on the back surface of a coating film, (a) is a partially broken perspective view, (b) is sectional drawing. Explanatory drawing which shows the process of pouring hot water on a natural fiber cloth. Explanatory drawing which shows the removal operation | work of a chemical fiber paper and a natural fiber cloth. It is explanatory drawing which shows the sticking completion state of the coating film with respect to Japanese paper, (a) is a perspective view, (b) is sectional drawing.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10, 30 ... Carrier 12 ... Colored coating 13 ... Acrylic resin coating 14 ... Glue component 16 ... Chemical fiber paper 18 ... Cotton cloth (natural fiber cloth)
20 ... transfer table 22 ... fixer 32 ... laminate 34 ... Japanese paper

Claims (4)

Applying a glue liquid by applying chemical fiber paper to the surface of the coating film applied to the surface of the carrier, and impregnating the colored liquid film and the chemical paper with the glue liquid;
A step of applying a natural fiber cloth having a coarse opening from above the synthetic fiber;
And a step of transferring the coating film from the carrier to the synthetic paper by peeling off the synthetic fiber and the natural fiber cloth. After transferring the coating film to the synthetic paper, a step of applying a fixing solution to the back surface of the coating film, and affixing the coating film to the transfer table together with the synthetic fiber and the natural fiber cloth;
Hot water is poured over the natural fiber cloth to melt the glue soaked into the synthetic fiber and the natural fiber cloth, and the synthetic paper and the natural fiber cloth are removed from the coating film affixed to the transfer stand. The coloring film collecting method according to claim 1, further comprising:   Before applying the glue liquid on the surface of the coating film by applying the glue liquid, forming the acrylic resin film that protects the coating film and allows the glue liquid to penetrate into the coating film. The method for collecting a colored coating film according to claim 1 or 2, characterized in that:   The operation of peeling the synthetic fiber and the natural fiber cloth is performed after the synthetic fiber paper and the natural fiber cloth are dried and before the coating film is dried. Colored paint film collection method.