JP2002225499A - Lacquerwork-like coated sheet - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a lacquerwork-like coated sheet which can be manufactured at a low cost and shows outstanding durability or the like. SOLUTION: An acrylic copolymer emulsion is applied to the surface of a base sheet. Next a mixture of an acrylic resin paint and a colorless transparent acrylic resin, prepared to such a volume % as to represent an appropriate color tone, is applied to the surface of the acrylic copolymer emulsion. After that, an adhesive is applied as a first coat and a gold or silver foil or sand is properly arranged and deposited on the adhesive. Then, a Japanese paper is placed over the adhesive before the latter is dried and pressed by hand so that it is attached and further, the adhesive applied to the part without the foil or the sand is sucked, so that only the gold or silver foil remains sticking to the sheet and a desired pattern or design is drawn. Following these steps, a water-diluted acrylic acid-methacrylate ester copolymer resin is normally applied twice to be followed by the steps to dry the coating film naturally, then apply an urethane resin paint and dry the resin paint as it is. Finally the urethane resin paint is wet-sanded using an appropriate abrasive. Thus the lacquerwork-like coated sheet with a surface showing the hand and feel of a japanned ware is obtained.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a novel coating structure in which noble metal foil or sand particles are scattered on the surface of a vinyl chloride sheet (hereinafter, referred to as a PVC sheet) or another plastic sheet having a certain degree of flexibility. It relates to products with a lacquered feel. That is, the present invention, in particular, by a combination of a novel undercoat material, paint, solvent and protective material,
This is a lacquer-like coating sheet.

[0002]

2. Description of the Related Art The creation of a lacquer work using gold leaf or sandblasting is a traditional technique, and is used for Japanese-style fittings such as sliding doors and folding screens. Recently, it is also used for elevator doors and closet doors in buildings. However, directly applying the lacquer work to the steel plate was costly and difficult to incorporate. In addition, it takes at least three months to produce a lacquer-like member made of ordinary lacquer, since a special drying process is required. However, current construction methods require long periods of time that increase costs. It is.

[0003] Conventionally, even those using cashew paint are generally sold as "lacquer or lacquer work".
Further, as a curable coating film coating method, a composition comprising a polycarboxylic acid compound, a polyepoxy compound and a special quaternary ammonium carboxylate is used, and a clear coat is formed thereon (JP-A-2000-256).
No. 534). As a method of forming a coating film having excellent sharpness trace hiding properties, there is a first method containing aluminum flakes.
Coating method for sequentially applying a metallic paint and a second metallic paint containing a smiling metal foil (Japanese Patent Laid-Open No. 2000-312)
857). In the case of decorating furniture and the like with lacquer work, the steps of painting lacquer and laying gold powder are repeated several times to deepen the tone of the lacquer work (see Japanese Patent Application Laid-Open No. 07-047799). . In the method of applying a lacquer work on the surface of a stamp material, a protective film of a gold foil is formed by using an epoxy paint (see Japanese Patent Application Laid-Open No. 10-119402). In order to finish the surface of furniture or the like in a lacquer work style, there is a method of coating with a fine particle such as gold and then laminating with a transparent film and an adhesive (see Japanese Patent Application Laid-Open No. 05-269952). Furthermore,
A sheet for attaching a metal foil, which is covered on both sides with an extensible synthetic resin protective film and provided with a release material layer, an adhesive layer and a release paper on the outside thereof (Japanese Patent Laid-Open No. 05-30579).
No. 9).

[0004]

SUMMARY OF THE INVENTION An object of the present invention is to provide a lacquer-like coated sheet decorated with foil or sand and having a lacquer feel. As a result, lacquer-style fittings, pillars, columns, floors, pillars, machis, and heavens that apply lacquer-like coating sheets at various locations such as Japanese-style stores and Japanese parlors, and make use of gold foil and other foil textures. Boards and the like can be provided. An object of the present invention is to provide an inexpensive and high-quality building interior member, and to provide a new high-quality lacquer-like coating sheet member suitable for renewal.

[0005]

According to the present invention, as a result of intensive studies to solve the above problems, a lacquer-like coated sheet can be provided by the following means. (1) (B) An acrylic copolymer emulsion is applied to a clean surface of the base sheet 1 so that the acrylic resin coating is easily applied to the substrate surface, and (C) an appropriate color tone is formed thereon. Then, a mixture of an acrylic resin paint and a colorless and transparent acrylic resin is applied as a paint to the surface, and then (D)
In order to adjust the acrylic copolymer emulsion to an appropriate concentration, the one diluted with water is applied as an adhesive with a ground coating, and (E) a foil or sandpaper of gold or silver is further applied thereon. Placed on, then (F) While the acrylic copolymer emulsion is not dry, cover it with Japanese paper and hold it down by hand, suck up the acrylic copolymer emulsion in the part without foil or sand particles, Only the foil such as gold and silver (that is, the portion of 5) is made to adhere to the sheet 1, and if necessary, the above steps (C) to (F) are repeated to remove another gold or silver foil or sandpaper. Place, draw desired pattern and picture on PVC sheet 1, draw desired pattern and pattern, then apply (G) water-diluted acrylic acid-methacrylic acid ester copolymer resin usually twice (H) Next, after air drying, urethane resin paint Coated, dried intact, and water polished with a suitable abrasive, further waste grinding ultrafine particles compounding abrasive, further, if necessary,
The step (H) is repeated to prepare a lacquer-like coating sheet having a surface with a lacquer-like taste.

Therefore, in the lacquer-like coating sheet of the present invention, the substrate material is a vinyl chloride sheet,
A polyethylene sheet, a polypropylene sheet or the like can be used, but is not limited thereto. In this specification, a description will be given using a vinyl chloride sheet (referred to as a PVC sheet) as a representative of these materials.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, a lacquer-like coating sheet of the present invention will be described with an example using a PVC sheet as a base, but the present invention is not limited thereby. In addition to a PVC sheet, a relatively flexible sheet such as a polyethylene sheet, a polypropylene sheet, or another sheet made of a plastic resin can be used as the substrate. In addition, each figure is modified,
Since the vertical and horizontal dimensions have been changed, they do not represent the exact ones.

FIG. 1 is a cross-sectional view of a coating structure of a lacquer-like coating sheet according to the present invention in the order of manufacturing steps. First, as shown in FIG. 1A, a PVC sheet 1 is prepared, and its surface is cleaned with industrial ethanol. This PVC sheet may be a commercially available wall material, and generally a sheet-like structure is commercially available. Specifically, PVC sheets such as Dynoc Eat sold by Sumitomo 3M, Bellbian sold by C-I Kasei, and Leartech sold by Sangetsu can be used.

[0009] Next, as shown in FIG.
(Acryla) Gel Medium (trade name of acrylic copolymer emulsion manufactured by Holbein Industries [Higashi-Osaka-shi, Osaka]) is applied. This is to make it easy for the acrylic resin to adhere to the surface of the PVC sheet.

Next, as shown in FIG. 1C, a mixture of an acrylic resin paint and a colorless and transparent acrylic resin is applied as a paint 3 on the surface so as to obtain an appropriate color tone (see FIG. 1C). 1C 3). In this process, the color of the acrylic resin paint, from a color that is nearly transparent, to a color that is lacquer-like, and a dark color used for the back of the gold leaf flyer, and the desired pattern of the lacquer-like coating sheet to be produced,
Use acrylic resin paint with a color that matches the pattern.

Next, the above gel medium (trade name of acrylic copolymer emulsion; manufactured by Holbein Kogyo Co., Ltd., Higashi-Osaka, Osaka) diluted with water is applied as an adhesive with a ground coat ( 1 of FIG. 1D). At this time, the concentration of the medium is adjusted according to the season, the type of foil and sand particles, and the amount to be sown.

On top of this, a foil such as gold and silver or sand particles are appropriately arranged and placed (5 in FIG. 1E). The type and size of the foil and the amount and arrangement of the seeds to be sown are determined by the meeting and design. Next, the acrylic copolymer emulsion 4 shown in FIG.
However, while the paper is not dried, it is covered with Japanese paper (that is, white dust) and pressed down by hand, and the acrylic copolymer emulsion 4 in a part without foil or sand (that is, a part other than 5) is sucked. By this operation, as shown in FIG. 1F, only the foil such as gold and silver (that is, the portion 5) adheres to the sheet 1.

Further, if necessary, the steps C to F in FIG. 1 are repeated (repeating the pattern several times increases the depth of the pattern), and another gold or silver foil or sand is placed on the PVC sheet 1. Draw the desired pattern or picture. Therefore, the thin acrylic resin paint also covers the gold and silver foil and sand particles placed before,
Colors such as gold can also increase depth.

As described above, by repeating the steps C to F in FIG. 1 to complete the drawing of a desired pattern or pattern (G in FIG. 1), the acrylic acid-methacrylic acid diluted with water is then used. Ester copolymer resin (trade name: Crystal Burnish: Holbein Kogyo [Higashi-Osaka, Osaka Prefecture]: Originally a burnishing varnish for polishing, creating a firm coating film on the screen and adhering dust etc.) To prevent, impart gloss and transparency). This operation is performed to prevent problems such as pinholes and cracks from occurring on the surface after the urethane has dried during the next urethane coating. The application is usually performed twice. It is preferable that the first time is performed with a dilution water of 50% by weight and the second time is performed with a dilution water of 30% by weight.

Next, after the above-mentioned coating, the mixture is allowed to stand for 2 days (that is, usually 2 days for natural drying, but it is adjusted according to the season and the type of foil or sand particles), and then the urethane resin paint ( AU21) sold from Isaam paint is applied (7 in FIG. 1H). Dry as it is (naturally dry, usually 2 days). When the surface of the No. 7 hardens, dust and dirt on the surface are removed, and the surface of the No. 7 is polished with a polishing agent such as Baflex (available from Kovacs, Patent No. 2808261). Next, an ultrafine particle compound abrasive (Hard 25973 manufactured by Sumitomo 3M) is applied, and the surface is polished with a rag to give a gloss.

Further, by repeating the above-mentioned urethane resin coating from the application of the urethane resin paint to the polishing step several times, preferably two to three times, a finished product having a lacquered taste like a lacquer work is obtained. Can be.

As described above, in the present invention, suitable paints and solvents must be selected and used so as to form a lacquer-like coating on a substrate. Therefore, the above-mentioned combination of the substrate, the acrylic paint, the solvent, and the protective material enables a lacquer-like coating.

The following test was carried out on a lacquer-like coating sheet formed on a PVC sheet by the above-described method. At the same time, the results are shown. A. Adhesion test As described above, the lacquer-like coating sheet prepared using the PVC sheet as the substrate was cut into a width of 25 mm,
kg with an automatic sticking roller that becomes a normal adhesive force, stick it to a bond steel plate, hold it at 65 ° C for one week, and then
After leaving for 1 day in an atmosphere of 20 ° C. and 65% relative humidity,
The 90 ° peeling force was measured three times at a peeling speed of 300 mm / min. The result was 1.4 kg / 25 mm.

B. Durability test Paste the lacquer-like coating sheet of the present invention on an aluminum plate,
It was kept in an atmosphere of 40 ° C. and 95% relative humidity for one week at 65 ° C. and observed for any change in appearance.

C. Contamination test The lacquer-like coated sheet of the present invention was brought into direct contact with the following contaminants, allowed to stand at room temperature for 18 hours, washed with water, and observed for any remaining traces of contamination on the sheet. Contaminants include ketchup, lemon juice, coffee, cola, milk, 50% ethanol, 10% aqueous hydrochloric acid,
Although a 10% aqueous solution of caustic soda was used, no trace of contamination remained.

D. Impact resistance test Paste the lacquer-like coating sheet of the present invention on an aluminum plate,
An impact test was performed with a Gardner impact tester. The test temperatures were 10 ° C and 20 ° C. The lacquer-like coated sheet of the present invention had slightly reduced impact resistance as compared with the PVC sheet without the lacquer-like coating, but retained sufficient impact resistance.

From the above test results, it is believed that the lacquer-like coated sheet prepared according to the present invention can be sufficiently used as a fitting or an interior member. Further, since the lacquer-like coating sheet of the present invention can be easily constructed, a material advantageous in terms of construction costs can be provided.

[0023]

The lacquer-like coated sheet of the present invention is
The configuration of the combination of materials as shown has the following technical effects. First, it takes a long time to create a conventional lacquer-like coating, and at the same time, in the case of using lacquer, it only dries in a humid state.
A workplace with special equipment is required, but in the production of the lacquer-like coated sheet of the present invention, since it is in the form of a sheet, it is possible to complete construction with its own equipment,
In addition, construction was easy and the cost of construction was low, making it possible to supply "Maki-e" at a low price.
Secondly, the lacquer-like coated sheet not only enables inexpensive supply of "lacquer", but also shortens the conventional long-term construction period of at least 3 months to 1-2 weeks, greatly shortening the construction period. Will be possible. Furthermore, since the present invention is sheet-shaped, it can be applied not only to a flat surface but also to various other types of surfaces such as a curved surface and a convex surface.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view showing the steps of manufacturing a lacquer-like coating sheet of the present invention in order.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 PVC sheet 2 Acrylic copolymer emulsion layer 3 Acrylic paint layer 4 Acrylic copolymer emulsion layer 5 Gold foil or sandpaper 6 Acrylic acid-methacrylic acid ester copolymer resin layer 7 Urethane resin layer

──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI theme coat ゛ (reference) // B32B 27/30 B32B 27/30 A 27/40 27/40 F term (reference) 4D075 AC19 AE16 BB03Z BB20Y BB24Y CA04 CA13 CA34 CA40 CB11 DA06 DB36 DB38 DC01 DC38 EA13 EB22 EB38 EC11 4F100 AB24D AB25D AB33D AK15A AK25B AK25C AK25E AK25J AK51E AL01B AL01E AL05C AT00A BA05 BA07 BA10C00B00 ECC JB13 CC01 CCB

Claims (1)

[Claims] (B) An acrylic copolymer emulsion 2 is applied to a clean surface of the base sheet 1 so that an acrylic resin paint is easily applied to the substrate surface, and (C) an appropriate color tone A mixture of an acrylic resin paint and a colorless and transparent acrylic resin is applied as a paint 3 on the surface thereof, and then (D) the acrylic copolymer emulsion is adjusted to an appropriate concentration. Then, the material diluted with water is applied as an adhesive 4 by ground coating, and (E) a foil or a sand particle 5 such as gold and silver is appropriately arranged thereon and placed thereon. While the acrylic copolymer emulsion does not dry, cover it with Japanese paper and hold it down by hand to absorb the acrylic copolymer emulsion 4 in a portion free of foils and sand particles, and only foil such as gold and silver (that is, the portion of 5) To the sheet 1 and, if necessary, By repeating the above steps (C) to (F), another gold or silver foil or sand is placed, a desired pattern or a desired pattern is formed on the PVC sheet 1, and the desired pattern or pattern is formed. Then, (G) an acrylic acid-methacrylic acid ester copolymer resin mixture diluted with water is usually applied twice, and (H) then, after being air-dried, a urethane resin paint is applied. , And water-polished with an appropriate abrasive, and then rubbed with an ultra-fine compound abrasive.If necessary, repeat step (H) to obtain a lacquer-like taste of Makie. A method for producing a lacquer-like coated sheet, characterized by having a roughened surface.