JP2677539B2 - Surface repair method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to the surface of furniture, wooden products such as pillars, electric appliances such as refrigerators, and other products.
The present invention relates to a method for repairing damage caused during transportation and storage of the product, and particularly to a method for repairing the damage by filling the recess with a filler when the damage has a recess such as a dent.

[0002]

2. Description of the Related Art Wooden products such as chests, bookshelves, and tables are
Every time you move from the factory to the end user such as warehouse or home,
It is loaded onto a freight vehicle and transported. During the transportation, it may be damaged by contact with other objects loaded adjacent to it, vibration or impact while driving on the road, and cracks, scratches or other scratches may be created on the surface of the product. Often.

In order to fill the recess and repair the scratch,
In the conventional surface repair method, the recesses such as depressions formed on the surface of the product are mixed with water and kneaded, and the clay-like mushroom (and powder) is filled as putty, and the product before the recess is formed The surface of the saw was aligned with the surface of the saw, the saw was dried and solidified to be converted into a solid, and the concave portion was filled with the solid, and the scratch was repaired to repair the surface of the product. Not only wood products but also recesses formed on metal plates and plastics were filled with the same putty as a filler to repair the recesses.

[0004]

In the conventional surface repairing method of filling the concave portion with the sawdust as putty, it takes about one day (24 hours) to dry the sawdust, so that the repair takes a long time. The work efficiency was poor, and the repair cost was high. In addition, the saw often shrinks during the drying process, and the surface of the product before the formation of the recess is dented, and the saw often cracks during the drying process. The degree of shrinkage is difficult to determine in advance, so the surface is filled up with a sawtooth that is higher than the desired surface, the saw is dried, the saw is dried, and the solidified and solidified surface is then sanded to form a recess. It was done to align this surface with the surface of the previous product. Even if a skilled person can considerably predict the degree of this shrinkage, it is difficult for an unskilled person to predict it, and wastefully fills the concave portion with a large amount of sawtooth, and with this solidification raised above the desired surface. Polishing sometimes took a lot of time. Also,
When the solidified saw has cracks, it is necessary to refill the saws with the cracks and repeat the drying process, which requires a longer repair time. in this way,
In the conventional surface repair method, the repair work required a long time and the work efficiency was poor.

Following this and the drying step, it is common practice to apply a colorant to the solidified saw and match the fill to the color of the surface of the product around the recess. However, when the colorant is applied to the solidified saw, the colorant soaks into the saw. There, it is not easy to predict the color of the colorant after drying on this surface, and it often happens that the color of the colorant differs from the color of the surface of this surrounding product on the. In such a case, it is attempted to restore the color by re-applying a colorant of a different color, but since the colorant of the re-application will soak into the original saw, it mixes with the previously applied colorant and is desired. It is very difficult to get the color of. As the topcoat is layered, it gradually becomes brown, and as the number of topcoats increases, it becomes a dark color.When you try to correct the color of the sawtooth, dig out the solidified saw with a knife etc. It is general that the steps of newly filling clay-like saws, drying and coloring are repeated again. Furthermore, the saw itself is not transparent but has a color, and from this point, there is a limit to the color that the saw can be colored. As described above, in the conventional surface restoration method using the sawdust as the filler, it is not easy to match the restoration surface to the surrounding color, and the coloring step is a work requiring skill.

As described above, the conventional surface repairing method has problems to be solved in terms of time required for repairing work, work efficiency, and ease of coloring.

[0007]

In order to solve the above-mentioned problems, the present invention provides the following means.

Dimples, cracks, or the like formed on the surface of the product due to contact between the product such as wooden furniture and other objects, or vibration or shock applied to the product while the product is moving.
The method comprises a filling step of filling a concave portion of a scratch or other scratch with a viscous substance, and a curing step of curing the viscous substance by curing the viscous substance filled in the concave portion to convert it into a solid. In the surface repair method for repairing the surface of the product by repairing the scratch by filling the solid substance with the solid substance, the viscous substance is an instant adhesive, and hardening promotion for promoting anionic polymerization of the viscous substance during curing. A method for repairing a surface, comprising a step of applying a curing accelerator to apply the agent to the recess just before the filling step.

Dimples, cracks, or the like formed on the surface of the product due to contact between the product such as wooden furniture and other objects, or vibration or impact applied to the product while the product is moving.
The method comprises a filling step of filling a concave portion of a scratch or other scratch with a viscous substance, and a curing step of curing the viscous substance by curing the viscous substance filled in the concave portion to convert it into a solid. In the surface repair method for repairing the surface of the product by repairing the scratch by filling the solid substance with the solid substance, the viscous substance is an instant adhesive, and hardening promotion for promoting anionic polymerization of the viscous substance during curing. A surface repair method comprising: providing a hardening accelerator applying step of applying the agent to the surface of the viscous substance filled in the recess immediately after the filling step.

The surface repair method as described in the above item 1 or 2, wherein the curing accelerator contains at least one of an amine such as an aromatic tertiary amine, phosphine, sulfide or a metal complex as a main component.

[0011] The above-mentioned or, wherein a polishing step of polishing the solid material after the curing step and aligning the surface of the solid material with the surface of the product before the recess is formed is provided. Surface repair method.

After the curing step, a coloring agent is applied to the surface of the solid material aligned on the surface of the product before the recess is formed, and the surface repairing method according to the above or the above. .

After the polishing step, a coloring agent is applied to the surface of the solid material that is aligned with the surface of the product before the recess is formed, and the surface repairing method as described above.

[0014]

BEST MODE FOR CARRYING OUT THE INVENTION Next, the present invention will be described in more detail with reference to the embodiments of the present invention.

FIG. 1 is a plan view showing a portion of a top plate 1 of the desk, and FIG. 2 is a sectional view taken along the line AA of FIG. While the table is being transported, the corners of other furniture hit the upper surface 11 of the wooden top plate 1 and were damaged, and the recess 2 is formed in the upper surface 11 of the top plate 1. Now, an embodiment will be described in which the recess 2 is filled with a filler and the method of the present invention is applied to repair the scratches on the top plate 1.

In this embodiment, as the instant adhesive, 2
-Use a cyanoacrylate-based adhesive containing cyanoacrylate as a main component. An aromatic tertiary amine was used as a curing accelerator. The aromatic tertiary amine is stored in a spray can and is sprayed in the air by pressing a button on the head of the spray can. A cyanoacrylate-based adhesive containing 2-cyanoacrylic ester as a main component is a one-liquid type room-temperature fast-curing adhesive, and is a chemical reaction-type adhesive in which anionic polymerization is initiated by the adsorbed water on the surface of the adherend to cure It is used to bond wood, rubber, plastics, metals, ceramics, etc. In this embodiment, a cyanoacrylate adhesive manufactured and sold for the purpose of adhesion is diverted to a filler that fills the recess 2. The cyanoacrylate adhesive is the above-mentioned viscous substance and is put on the market in a tube and is commercially available.

First, the hollow 2 is filled with a viscous cyanoacrylate adhesive contained in a tube. The tube is continuously squeezed until the upper surface of the cyanoacrylate adhesive is aligned with the upper surface 11 of the top plate 1, and the cyanoacrylate adhesive is dripped into the recess 2. Since the cyanoacrylate adhesive wets wood well, there is no difficulty in aligning the upper surface of the cyanoacrylate adhesive with the upper surface 11 of the top plate 1. When the upper surface of the cyanoacrylate adhesive in the recess 2 coincides with the upper surface 11 of the top plate 1, the injection of the cyanoacrylate adhesive into the recess 2 is stopped, and the upper surface of the cyanoacrylate adhesive (immediately exposed to the air Surface) is sprayed with a curing accelerator.

When the curing accelerator is not applied, the time required for the instant adhesive to cure to a hardness that can be polished is 8
About an hour. However, when the curing accelerator is applied to the instant adhesive on the surface exposed to air by spraying, the time required for the instant adhesive to cure to a hardness that can be abraded (corresponding to the curing time described above) is It's a few seconds.

Therefore, in this embodiment, after a few seconds have passed since the curing accelerator was sprayed, the alignment between the upper surface of the cured cyanoacrylate adhesive and the upper surface 11 of the top plate 1 was inspected, and If both sides are in line, the lacquer colorant is applied on top of the cured cyanoacrylate adhesive. The color of the colorant is matched with the color of the upper surface 11 of the top plate 1. The cyanoacrylate adhesive is transparent, and the cyanoacrylate adhesive does not soak the colorant and does not have its own color. Therefore, when the cyanoacrylate adhesive is colored with the colorant, the color of the colorant becomes the color of the filler as it is. A lacquer-based colorant is made by mixing a pigment with a thinner, but a cured cyanoacrylate-based adhesive does not dissolve in a thinner, so even if a lacquer-based colorant is applied to a cured cyanoacrylate-based adhesive, the filler cyano The acrylate adhesive does not decrease, and the colorant can be reapplied as many times as necessary. Therefore, if the color applied once is different from the color of the upper surface 11 of the top plate 1, the coloring is changed to sandpaper (aka:
If you remove it with a (mesh) and apply another color of lacquer color, you can color it properly. Since the cured cyanoacrylate-based adhesive is very hard, it hardly decreases even if sandpaper is applied many times to remove the colorant, and there is no practical limit to the number of times the colorant is reapplied.

Since the cyanoacrylate-based adhesive hardly changes in volume upon curing, there is almost no need to raise it from the recess 2 and fill it with the cyanoacrylate-based adhesive. However, for some reason, when the upper surface of the cyanoacrylate-based adhesive which is filled in the recess 2 and hardened is raised above the upper surface 11 of the top plate 1, the raised cyanoacrylate-based adhesive is rubbed with a sandpaper or sand. The top surface of the cyanoacrylate adhesive filled in the depressions 2 is aligned with the top surface 11 of the top plate 1 by polishing with paper or the like.
Since the cyanoacrylate-based adhesive cures to a hardness that can be polished in a short time, the working time is about 10 minutes even when polishing is required. Also, when coloring, the color of the filler is determined only by the color of the colorant, so that even if not an expert, the upper surface 11
The color of the filling material can be easily adjusted to the color of.

In order to make the surface of the filler material smoother, the above-mentioned polishing is performed after the cyanoacrylate adhesive is cured, and then a sanding sealer is sprayed on the polished surface, dried for several minutes, and dried sanding. Lightly sand the sealer with sandpaper, then apply a lacquer colorant, color and finish.

The sanding sealer is a woodwork repair agent composed of nitrocellulose, pigment, synthetic resin, organic solvent and the like. When a sanding sealer is applied and dried, a thin film is formed on the surface of the filler, and the film is lightly sanded to remove fine irregularities on the surface of the cured cyanoacrylate adhesive, The surface of the filler can be finished extremely smooth, the paste of the lacquer colorant can be improved, and a beautiful surface can be obtained.

The depression 2 shown in FIGS. 1 and 2 had a sufficient opening to allow the instant adhesive to be dripped and filled directly from the tube. If the recess that should be filled with the instant adhesive is narrower than the outlet of the tube, transfer the instant adhesive contained in the tube to the syringe, insert the needle of the syringe into the recess of the narrow opening, and do not need it around the opening. It is possible to surely inject the instantaneous adhesive only into the concave portion without attaching the instantaneous adhesive. Since the instant adhesive is a fluid, it is more likely to enter a much narrower gap than a saw, and repairs such as cracks can be surely made easier than a saw. In a narrow recess such as a crack, a curing accelerator is sprayed onto the recess prior to filling with the instant adhesive, the wall surface of the recess is lightly wetted with the curing accelerator, and immediately thereafter, the instant adhesive is filled into the recess.

As the instant adhesive which can be used in the present invention, the one named Alteco instant adhesive manufactured by Alpha Giken Co., Ltd., the one named Power Ace manufactured by Sekisui Aiko Co., Ltd., the one manufactured by Toagosei Co., Ltd. There are those named Aron Alpha, those named Quick Bond C manufactured by Kansai Polymer Laboratories, Inc., and the one named Strong Instant Adhesive 3000B manufactured by Cemedine Co., Ltd. Further, as the curing accelerator that can be used in the present invention, the one named Alte Cosplay Primer manufactured by Alpha Giken Co., Ltd., the one named Setter manufactured by Toagosei Co., Ltd., and the instant adhesive manufactured by Three Bond Co., Ltd. There are those named as curing accelerators and those named as prism primers manufactured by Nippon Loctite Co., Ltd.

In the above embodiment, an example of repairing a wooden desk has been shown, but it goes without saying that the present invention can be applied to other than wooden products such as metal plates and plastics of electric appliances.

[0026]

As described above in detail with reference to the embodiments, according to the present invention, the time required for the repair work is remarkably shorter than that of the conventional surface repair method using the saw blade as the filler. It is possible to provide a surface repairing method which is highly efficient and can be easily and appropriately colored by an unskilled person.

[Brief description of the drawings]

FIG. 1 is a plan view showing a portion of a top plate 1 of a desk that repairs a damaged portion according to an embodiment of the present invention.

2 is a cross-sectional view of the top plate 1 of FIG. 1 taken along the line AA.

[Explanation of symbols]

 1 ... Top plate 2 ... Recess 11 ... Top surface of top plate 1 21 ... Wall of recess 2

(72) Inventor Takafumi Watanabe 1513-4 Kawawa-cho, Tsuzuki-ku, Yokohama-shi, Kanagawa Japan Maintenance Co., Ltd. (72) Inventor Katsuyoshi Mukichi 1513-4 Kawawa-cho, Tsuzuki-ku, Yokohama-shi, Kanagawa Within Japan Maintenance (72) Inventor Ichiro Karai 1513-4 Kawawacho, Tsuzuki-ku, Yokohama-shi, Kanagawa Japan Maintenance within (72) Inventor Takeaki Suzuki 1513-4 Kawawa-cho, Tsuzuki-ku, Yokohama-shi, Kanagawa Japan In maintenance (72) Inventor Akira Yamashita Koshigaya-shi, Saitama 1346-19 Square Japan Limited (56) Reference JP-A-3-267174 (JP, A)

Claims (6)

(57) [Claims] 1. Contact between a product such as wooden furniture and another object,
Alternatively, a filling step of filling a viscous substance into the recesses, cracks, scratches or other scratches on the surface of the product due to vibration or shock applied to the product while the product is moving,
And a curing step of curing the viscous substance by curing the viscous substance filled in the recesses and converting it into a solid.
In the surface repair method for repairing the surface of the product by repairing the scratch by filling the recess with the solid material, the viscous substance is an instant adhesive, and promotes anionic polymerization of the viscous substance in the curing. A surface repairing method, which comprises providing a hardening accelerator applying step of applying a hardening accelerator to the recess just before the filling step. 2. Contact between a product such as wooden furniture and another object,
Alternatively, a filling step of filling a viscous substance into the recesses, cracks, scratches or other scratches on the surface of the product due to vibration or shock applied to the product while the product is moving,
And a curing step of curing the viscous substance by curing the viscous substance filled in the recesses and converting it into a solid.
In the surface repair method for repairing the surface of the product by repairing the scratch by filling the recess with the solid material, the viscous substance is an instant adhesive, and promotes anionic polymerization of the viscous substance in the curing. A surface repair method comprising: providing a hardening accelerator applying step of applying a hardening accelerator to the surface of the viscous substance filled in the recess immediately after the filling step. 3. The surface according to claim 1, wherein the curing accelerator contains at least one of an amine such as an aromatic tertiary amine, phosphine, sulfide or a metal complex as a main component. Repair method. 4. Polishing the solid after the curing step,
The surface repairing method according to claim 1, further comprising a polishing step of aligning a surface of the solid material on a surface of the product before the recess is formed. 5. The coloring agent is applied to the surface of the solid material aligned on the surface of the product before the recess is formed after the curing step.
Surface repair method described in. 6. The surface according to claim 4, wherein after the polishing step, a colorant is applied to the surface of the solid material aligned on the surface of the product before the recess is formed. Repair method.