JP6645557B1 - How to repair a painting - Google Patents

Abstract

A restoration method capable of resolving canvas distortion and sag and restoring the flatness of a screen without impairing the original texture. A step of attaching a holding belt having a belt-shaped member using a hook-and-loop fastener and a holding member for holding a canvas to an outer edge of the canvas; Arranging a canvas to which the holding belt is attached; attaching the holding belt to the frame; and covering the frame with a sheet material having low gas permeability to form a closed space below the frame. A step of humidifying the closed space and humidifying it to a peak humidity of 80% RH or more. Leaving the canvas in the closed space for 2 hours or more; removing the sheet material, holding the canvas at the position after the fine adjustment, and holding the canvas for 6 hours. Or between, a step of natural drying, painting method repair. [Selection diagram] FIG.

Description

  The present invention relates to a method of restoring a painting, and more particularly to a method of restoring a canvas used for oil painting.

Generally, an oil painting is formed by stacking a wooden frame, a support (such as a canvas made of linen cloth), a filling layer, a base layer, a painting layer, and a varnish layer in order from the bottom.
When repairing aged oil paintings, besides taking measures against dangerous conditions that are already in progress (such as tearing of canvas, cracking of paint, lifting, mold, crystals, etc.), distortion of canvas, Various treatments such as removal of sagging, removal of yellowed varnish, filling of the spalled portion, and coloring are performed.

Among them, a method called “lining” has been known for a long time as a measure for resolving the distortion and sagging of the canvas and restoring the flatness of the screen (for example, Patent Document 1).
Backing is a process of applying a new cloth to the back of the original canvas via an adhesive, applying heat and pressing the new cloth on the back of the original canvas.
In addition to the effect of reinforcing the deteriorated canvas and restoring the flatness of the screen, the backing has the effect of preventing symptoms such as tearing and distortion, and the effect of preventing the canvas from moving and preventing damage to the paint layer. It is known that there is.

  However, in the above conventional method, the original texture and impression of the painting layer are easily damaged by heat and pressure applied to the canvas at the time of backing, and specifically, the handwriting of the paint becomes flat in the painting layer or the paint There is a disadvantage that the swelling may be crushed, darkened by an adhesive, or blistered.

JP-A-2-185500

  The present invention has been made in view of such circumstances, and a restoration method capable of resolving the distortion and sagging of the canvas and restoring the flatness of the screen without impairing the original texture and impression of the painting layer. The purpose is to provide.

The present invention provides the following [1] to [5].
[1] A step of attaching a holding belt having a belt-shaped member using a hook-and-loop fastener and a holding member for holding a canvas to an outer edge of the canvas (hereinafter also referred to as an attaching step), and having a space in which the canvas can be arranged. A step of arranging the canvas to which the holding belt is attached in the space of the frame (hereinafter, also referred to as an arrangement step), a step of adhering the holding belt to the frame (hereinafter, also referred to as an adhering step), A step of covering the frame with a sheet material having low gas permeability to form a closed space below the frame, and humidifying the closed space to raise the humidity to a peak humidity of 80% RH or more (hereinafter referred to as a rising After the peak humidity is reached, the humidification is stopped, and the canvas is left in the closed space for 2 hours or more while finely adjusting the attachment position of the holding belt. A step (hereinafter, also referred to as a leaving step) and a step of naturally drying the canvas for 6 hours or more while removing the sheet material and holding the attaching position of the holding belt at the position after the fine adjustment ( A method for restoring a painting, comprising a natural drying step).
[2] The method of restoring a painting according to [1], wherein the frame has an attaching portion to which the hook-and-loop fastener is attached, and the holding belt is attached to the attaching portion.
[3] The method of restoring a painting according to [2], wherein the attaching unit attaches a hook-and-loop fastener to at least one of an inner surface and an outer surface of the frame.
[4] In the attaching step, the position where the holding belt is attached to the attaching portion is adjusted to a position suitable for eliminating distortion of the canvas, and the attaching is performed, [1] to [3]. The method for restoring a painting according to any one of the above.
[5] The method for restoring a painting according to any one of [1] to [4], wherein the humidifying step, the leaving step, and the natural drying step are repeated until distortion and sagging of the canvas are eliminated. .

  ADVANTAGE OF THE INVENTION According to this invention, the distortion and sag of a canvas can be eliminated and the flatness of a screen can be restored, without impairing the original texture.

It is a top view of a holding belt used for one embodiment of the present invention. It is the whole frame perspective view used for one embodiment of the present invention. It is an explanatory view of an arrangement process of one embodiment of the present invention. It is explanatory drawing of the sticking process of one Embodiment of this invention. It is explanatory drawing of the humidity raising process of one Embodiment of this invention.

  Hereinafter, each step of the embodiment of the present invention will be described in detail. However, the present invention is not limited to the following embodiment.

<Preparation process>
Strip lining is applied to the outer edge of the canvas removed from the wooden frame, if necessary.
In the present specification, the outer edge of the canvas means a portion that does not have a paint layer, is folded, and is fixed to a wooden frame with iron nails or the like for a canvas.
As described above, the outer edge of the canvas is extremely oxidized because there is no paint layer, and because it is bent and fixed to a wooden frame with an iron nail or the like, it is easily damaged, and symptoms such as tears and holes are likely to appear. ing. Strip lining refers to a treatment method in which another cloth is applied to the outer edge of the canvas to strengthen the outer edge of the canvas.

<Mounting process>
In this step, the holding belt is attached to the outer edge of the canvas or the outer edge of the cloth adhered by the strip lining (hereinafter referred to as the outer edge 32 of the canvas or the like).
As shown in FIG. 1, the holding belt 1 includes a belt-shaped member 11 and a holding member 12 at one end of the belt-shaped member for holding an outer edge 32 such as a canvas.
The belt-shaped member 11 is made of a hook-and-loop fastener. It is preferable that the hook-and-loop fastener has an engaging element on both the front surface and the back surface. As the hook-and-loop fastener, a hook-and-loop fastener known under the trade name of "Magic Tape (registered trademark)" or "Velcro (registered trademark)", or a molded plastic fastener made of resin can be used.
The holding member 12 is not particularly limited as long as it can be attached to the outer edge 32 such as a canvas. For example, the holding belt 1 can be attached by using an outer edge 32 of a canvas or the like sandwiched between the two pieces of wood by using two wood pieces which are screwed openably and closably with a wing bolt.
The holding belt 1 has a function of evenly dispersing the force applied to the canvas in four directions, up, down, left, and right.
It is preferable that the holding member 12 is attached to the outer edge 32 of a canvas or the like at vertically symmetric and left-right symmetric positions.
The above function can be more effectively achieved as the mounting interval of the holding members 12 (the interval between the adjacent holding members 12) is smaller. The distance can be set as appropriate as appropriate. Generally, it is preferable to attach the holding member 12 at intervals of 3 to 5 cm.

<Placement process>
In this step, for example, a frame 2 having a space in the center as shown in FIG. 2 is used. As shown in FIG. 3, the canvas 3 to which the holding belt 1 is attached is arranged in the space in the center of the frame 2.
The arrangement is such that the distance (X) between the outer periphery of the portion (that is, the screen) 31 of the canvas 3 viewed from the front in a state where the canvas is stretched as an oil painting and the inner periphery of the wooden frame is 20 to 30 cm. It is preferable that the adjustment be performed so that the distance is adjusted to be 20 to 25 cm.
The frame 2 is preferably made of wood. For example, four square members can be combined in a square shape.
It is preferable that the frame body 2 has an attaching portion in which a hook-and-loop fastener is attached to at least one of the inner surface and the outer surface. As shown in FIG. 2, the frame 2 used in the present embodiment has an attaching portion 21 in which a hook-and-loop fastener is attached to an outer surface and an attaching portion 22 in which a hook-and-loop fastener is attached to an inner surface.
It is preferable that the hook-and-loop fastener forming the affixing portions 21 and 22 has an engaging element that can be engaged with the engaging element of the hook-and-loop fastener forming the belt-shaped member 11 of the holding belt 1. Specifically, when the hook-and-loop engaging member of the belt-shaped member 11 of the holding belt 1 is a hook-shaped engaging member, the loop-shaped engaging member and the hook-and-loop fastener of the belt-shaped member 11 of the holding belt 1 are engaged. When the mating member is a loop-shaped engaging member, the hook-shaped engaging member and the engaging member of the hook-and-loop fastener forming the belt-shaped member 11 of the holding belt 1 are a mixture of the hook-shaped engaging member and the loop-shaped engaging member. Preferably has a loop-shaped engaging element and / or a hook-shaped engaging element.

<Paste process>
In this step, as shown in FIG. 4, the holding belt 1 attached to the canvas 3 arranged in the space inside the frame 2 is wound around the frame 2 and attached.
It is preferable that the sticking is performed by adjusting the sticking position to a position suitable for eliminating distortion and sagging of the canvas.
In the present specification, “eliminating distortion and sagging of the canvas” means that waving on the canvas surface, twitching of corners, cracks generated on the screen, and the like are eliminated at a visual level.
In the present embodiment, since the belt-shaped member 11 of the holding belt 1 and the attaching portions 21 and 22 are both formed of hook-and-loop fasteners, fine adjustment of the attaching position can be easily performed.

<Humidification process>
In this step, the frame 2 in which the canvas 3 is placed in the internal space and the belt-shaped member 11 of the holding belt 1 is attached to the attaching portions 21 and 22 is, for example, as shown in FIG. Then, the frame 2 is covered with a sheet material 5 having a low gas permeability to form a closed space 6 below the frame 2.
The closed space 6 is formed by, for example, covering the sheet material 5 having low gas permeability with the outer edge 32 of the canvas or the like, the holding belt 1, the frame 2, and the leg member 4 without covering the screen 31 such as a canvas. To reach the floor 8.
After the closed space 6 is formed, the closed space 6 is humidified using a humidifier 7 to raise the humidity of the closed space 6 to a peak humidity of 80% RH or more, preferably 90% RH or more. Here, the peak humidity means a peak value of humidity measured at the time of humidification.
By setting the peak humidity at 80% RH or more, the canvas hardened by aging (oxidation) can be given sufficient moisture to restore flexibility.
The material of the sheet material 5 is not particularly limited as long as it is a sheet material having low gas permeability, and examples thereof include a sheet material made of a resin such as a polyethylene resin, a nylon resin, a polypropylene resin, and a fluororesin.

<Leaving process>
In this step, after reaching the peak humidity, the humidification is stopped, and the bonding position of the surface fastener forming the bonding portions 21 and 22 and the surface fastener forming the belt-shaped member 11 of the holding belt 1 is finely adjusted. While adjusting, the canvas is left in the closed space for 2 hours or more. In less than two hours, the canvas is still wet. By leaving it for 2 hours or more, the canvas will gradually dry naturally and the canvas will become stable. It is preferable to leave it for about 2 to 5 hours.
The fine adjustment is performed for the purpose of correcting distortion or sagging of the canvas, and is preferably performed until the humidity in the closed space 6 decreases to 60% RH or less, and 70% or less. It is more preferably performed before the humidity falls to RH or less, and even more preferably performed until the humidity falls to 80% RH or less.
By performing the fine adjustment under the above humidity condition, distortion and sagging of the canvas can be corrected without applying a large load to the canvas in a state where the canvas has flexibility.

<Natural drying process>
In this step, after removing the sheet material, the canvas is air-dried for 6 hours or more with the bonding position between the holding belt and the hook-and-loop fastener surface being held at the position after the fine adjustment. Air drying for 6 hours or more can provide more stable flatness. It is preferable to air dry for about 6 to 24 hours.

<Repeating of the humidity raising process to the leaving process to the natural drying process>
If the distortion of the canvas has not been eliminated after the step of natural drying, the above-described humidifying step, leaving step, and natural drying step can be repeated to eliminate distortion and sagging of the canvas.

  Unlike the conventional backing method in which the screen is forcibly flattened with heat and pressure, the present invention comprising the above steps is different from the conventional backing method in that the canvas is given moisture and the flexibility is regained, and the holding belt is used. Since the distortion and sagging of the image are corrected and eliminated over time, the flatness of the screen can be restored without destroying the texture of the painting.

DESCRIPTION OF SYMBOLS 1 Holding belt 11 Belt-like member 12 Holding member 2 Frame 21 Sticking part 22 Sticking part 3 Canvas 31 Screen 32 Outer edge 4 of canvas etc. 4 Leg member 5 Sheet material 6 Closed space 7 Humidifier 8 Floor surface

Claims (5)

A step of attaching a holding belt having a belt-shaped member using a surface fastener and a holding member that holds the canvas to an outer edge of the canvas,
Arranging the canvas to which the holding belt is attached, in the space of the frame having a space in which the canvas can be arranged;
Affixing the holding belt to the frame,
Covering the frame with a sheet material having low gas permeability to form a closed space below the frame, and humidifying the closed space to raise the humidity to a peak humidity of 80% RH or more;
After the peak humidity is reached, humidification is stopped, and the canvas is left in the closed space for 2 hours or more while finely adjusting the attaching position of the holding belt; and
A method for restoring a painting, comprising a step of air-drying the canvas for at least 6 hours while removing the sheet material and holding the attachment position of the holding belt at the position after the fine adjustment.   The method of restoring a painting according to claim 1, wherein the frame has a sticking portion to which the hook-and-loop fastener is stuck, and the holding belt is stuck to the sticking portion.   The method of restoring a painting according to claim 2, wherein the attaching portion attaches a hook-and-loop fastener having an engaging element to at least one of an inner surface and an outer surface of the frame. 4. The painting according to claim 2 , wherein, in the attaching step, a position at which the holding belt is attached to the attaching section is adjusted to a position suitable for eliminating distortion of the canvas, and the attaching is performed. How to repair.   The method of restoring a painting according to any one of claims 1 to 4, wherein the step of increasing the humidity, the step of leaving the sheet, and the step of naturally drying are repeated until distortion and sagging of the canvas are eliminated.