JPH04105998A - Urushi (japanese lacquer) coating frame - Google Patents

Abstract

PURPOSE:To shorten and simplify a coating process and to obtain an urushi coating frame having a quality feeling and generating no cutting or thining of a film by treating the surface of a frame body wherein a backer is laminated to a fiberboard with a urethane sealer to apply urushi to the treated surface. CONSTITUTION:For example, a backer 2 having 0.5mm thickness is laminated to medium density fiberboard (MDF) having 20mm thickness and the laminated one is punched in a predetermined dimension. Subsequently, the surface thereof is treated with a urethane sealer and urethane clear coating 3 is performed. Further, urushi 4 is applied to the surface of the clear coating. By this method, a mirror surface having a deep quality feeling is obtained and a door frame body having a high-grade feeling can be obtained and the cutting or thinning of a film is not generated at all.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) This invention relates to a lacquered frame. More specifically, the present invention relates to a new lacquered frame that is useful for furniture doors, kotatsu boards, and other wood products and has excellent texture and mirror finish.

(Prior Art) Many lacquer products with excellent durability and deep texture have been known for use as furniture, tableware, and other wood products. These lacquer products are made by applying lacquer coating to the surface of wooden materials, and the lacquer coating method is a traditional method that involves over 40 steps of applying the base, intermediate coating, and then top coating. The craft method of lacquering is known.

It is also known to apply a transparent coating over colored lacquer as Tame-nuri lacquer.

In this way, there are various methods of lacquer coating, such as colored or transparent lacquer coating, and with this lacquer coating, a deep texture is obtained due to the translucency of the coating film that is applied over and over again. A characteristic feature is that the mirror surface does not change over time.

(Problem to be solved by the invention) Lacquer-coated products give wooden products a sense of texture and luxury due to their excellent coating performance, but on the other hand, the entire coating process is done manually. , there are so many steps involved that it is extremely difficult to improve productivity and reduce costs while maintaining excellent quality.

For this reason, it has been difficult to widely spread lacquer coating on a variety of wood products, and it has been difficult to manufacture lacquer products on an industrial scale.

In addition, when using this lacquered product as a frame for wooden products such as furniture doors and kotatsu boards, apply enough rust or linen to the joints of the wood to prevent the paint film from cracking or fading. The process was tedious and had the disadvantage that cracking and thinning of the paint film were unavoidable.

For this reason, it has been industrially difficult to use lacquered products as frames.

This invention was made in view of the above circumstances, and it improves the drawbacks of the conventional lacquer coating method and its application to lacquered frames, shortens and simplifies the coating process, and provides a textured finish. The aim is to provide high-quality lacquered frames that prevent the paint film from peeling or fading at a low cost.

(Means for Solving the Problems) In order to solve the above problems, the present invention is characterized in that the surface of a frame body in which a backer is bonded to fiber hoard is treated with a urethane sealer and coated with lacquer. Provides a lacquered frame.

Further, in the present invention, it is preferable that the fiber boat is made of medium density fiber hoard (MDF), and that it is coated with enamel and/or clear coating after being treated with a urethane sealer.

To explain the lacquered frame of the present invention in more detail, the manufacturing method is as follows: First, a backer is attached to a fiber hoard, and a frame is formed by hollowing out to a predetermined size.Then, the lacquered frame is treated with a urethane sealer, and then treated with an enamel/ Alternatively, the frame may be completed by applying a clear coat and then lacquering, or pasting a backer onto the fiberboard, applying the lacquer as described above, and then cutting out the frame.

There are no particular limitations on the materials of the fiber hoard and backer in this case, but as a fiberboard,
For example, in the case of furniture doors, M with a thickness of about 5 to 30 mm
It is preferable to use a DF with a thickness of about 0.2 to 1 mm as a backer.

Since the backer is attached to the fiberboard and then lacquered, there are no adhesive seams on the surface as in the past, and there are no problems with the paint film peeling or fading at these seams. Moreover, since the core material is made of homogeneous fiber, its shape does not change due to dryness, humidity, cold, heat, etc., and even if the shape changes due to bonding of the backer, it will not affect the surface of the coating film.

The backer itself has a smooth surface and a dense structure made by press-molding thermosetting resin, its paper, sheet, etc., so it is not thin.

Furthermore, fiberboard is homogeneous and has good workability, making it easy to process into various shapes.

The lacquer used for this lacquered frame may be one that has been widely used in the past, and a manufacturing method in which collected lacquer juice is heated to about 408C to remove moisture can be used as appropriate.

Lacquer, whose main ingredient is urushiol, forms a translucent, textured coating as a natural varnish.

When forming a coating film using lacquer, the backer surface can be treated with a urethane sealer, then the base color can be colored with polyenamel or urethane enamel, and then a clear coat can be applied.

Polyenamel and urethane enamel are made by dispersing pigments in a resin varnish made of polyester resin or urethane resin and mixing it with a quick-drying solvent such as thinner. is used as a color vehicle.

Further, as the clear coating, urethane clear or polyclear can be used. A paint for forming transparent coatings made of urethane resin or polyester resin. It may also be used in combination with lacquer.

Clear coating can be applied as an intermediate coating. Of course, this is not necessarily necessary.

However, with this clear coating, you can obtain a high-quality coating with a deep texture even if you reduce the number of lacquer applications.
It is preferable to apply this clear coating.

As a method for coating, roller coating, doctor brood coat ink, and other appropriate means can be employed.

Either method greatly simplifies the conventional process,
Production costs can also be significantly reduced.

(Function) As mentioned above, in the lacquered frame of the invention, since the base material is a backer laminated to a fiber boat, there is no deformation of the shape or thinning of the paint film, and there is no seam like in the past. Therefore, there is no problem of peeling or thinning of the paint film.

Furthermore, in this invention, by painting after urethane sealer treatment, the number of processes can be significantly reduced compared to conventional lacquer painting, especially when clear painting is performed, and a coated product of low cost and high quality can be obtained. .

(Examples) Hereinafter, examples will be shown and the lacquered frame of the present invention will be explained in more detail.

Example 1 As shown in Figure 1, (a,) First, a 20 mm thick MDF (1) was
．． A backer (2) with a thickness of 5 mm was attached, and this was hollowed out to a predetermined size.

(b) Next, the surface was treated with a urethane sealer, and further urethane clear coating (3) was applied.

(C) Furthermore, lacquer (
4) was applied.

Through this process, a mirror surface with a deep texture was obtained, making it possible to create a door frame with a high-class feel. The paint film did not peel or thin at all.

Example 2 As step (6) of Example 1, black polyenamel was applied, followed by urethane clear coating.

The translucent lacquer coating creates a mirror surface with a deep texture.

Example 3 As shown in Figure 2, (a) 0.3 mm thick MDF (1) with a thickness of 30 mm
A thick backer (2) was attached.

(b) Urethane sealer treatment was performed, and polyclear coating (3) was applied to the surface.

(c) Next, lacquer (4) was applied, and (d) it was hollowed out to a predetermined size to obtain a mirror frame.

We were able to obtain a mirror-like lacquered frame with a deep texture and no peeling or fading of the paint film.

(Effects of the Invention) As explained in detail above, this invention enables a production process that is much simpler than the conventional one, significantly reducing production costs, and creating deep textures without changing shape, peeling or thinning of the paint film. A mirror-like lacquered frame with a luxurious feel can be obtained.

[Brief explanation of the drawing]

FIGS. 1 and 2 are a process plan view and a cross-sectional view, respectively, illustrating the manufacturing process of a lacquered frame of the present invention. 1... MDF 2... Backer 3... Clear coating 4... Lacquer

Claims (5)

[Claims] (1) A lacquered frame, which is made by applying a urethane sealer to the surface of the frame, which is made by pasting a backer on fiberboard and then applying lacquer. (2) The lacquered frame according to claim (1), wherein the fiberboard is a medium density fiberboard. (3) The lacquered frame according to claim (1) or (2), which is coated with enamel and/or clear coating after being treated with a urethane sealer. (4) The lacquered frame according to claim (1), (2) or (3), wherein the frame is formed by laminating a backer to a fiberboard and then hollowing it out to form a frame, and then coating the surface with lacquer. (5) Claim (1) in which the material is hollowed out after being coated with lacquer;
The lacquered frame described in (2) or (3).