KR102126736B1 - real wood interior material and manufacturing method thereof - Google Patents

Abstract

The present invention relates to a real wood interior material for improving lightfastness and discoloration resistance, and a method for manufacturing the same, so as to prevent the discoloration of the colored layer, thereby improving the decorative effect by coloring.

Description

Real wood interior material and manufacturing method thereof for improving light resistance and discoloration resistance

The present invention relates to a real wood interior material and a method for manufacturing the same, and more specifically, to prevent the discoloration of the colored layer, the real wood interior material for improving light fastness and discoloration resistance to improve the decorative effect by coloring and It relates to a manufacturing method.

Synthetic resin interior material is applied to the upper part of the interior of the car.

Synthetic resin interior materials have the advantage of being easy to manufacture as well as inexpensive to manufacture due to material characteristics.

However, the synthetic resin interior material has a problem in that it is not possible to expect a luxurious appearance sensibility effect due to a small decorative effect such as poor texture.

For this reason, the application of interior materials using natural materials such as wood, carbon, stone, etc. to luxury passenger cars is increasing.

On the other hand, a conventional real wood interior material manufacturing method applied to the interior of the vehicle, preparing a real wood sheet comprising a real wood veneer as disclosed in Patent No. 10-0913850 (announced August 26, 2009), the Pressing and molding the Realwood sheet, forming a base layer on the back of the molded Realwood sheet, forming a colored layer on the top of the Realwood sheet on which the base layer is formed, on the top surface of the colored Realwood sheet Forming a coating layer, cutting the ends of the coated realwood sheet and the base layer of the back surface, and polishing the milled realwood sheet surface.

The real wood interior material manufactured by the above-described manufacturing method can be made more luxuriously decorated than the synthetic resin interior material by the unique texture and pattern of the real wood exposed on the surface, so that the appearance can be enhanced.

However, the conventional real wood interior material has a problem in that the color does not vary, so the decorative effect due to coloring is poor.

That is, in the case of coloring in a bright color such as beige, the conventional real wood product has a considerable discoloration of the colored layer and the real wood veneer when exposed to light for a long time, so the original color could not be maintained. Likewise, it was forced to be colored in a relatively dark color, and thus the decorative effect due to coloring was deteriorated due to the monotone of the colored color.

For the above reasons, in the related field, a method for preventing the discoloration of the colored layer of the real wood interior material is being sought, but until now, satisfactory results have not been obtained.

The present invention has been proposed in view of the above circumstances, and solves the problem that the decorative effect was deteriorated when the colored layer of the conventional real wood interior material was colored with a bright color, so that the discoloration was considerable and the original color could not be maintained. The purpose of the present invention is to provide a real wood interior material for improving light resistance and discoloration resistance and a method for manufacturing the same.

Real wood interior material for improving light fastness and discoloration resistance according to the present invention for achieving the above object, a thin film-shaped real wood of a constant thickness; And a colored layer formed on the upper surface of the real wood to impart color to the real wood, wherein the colored layer is formed of a composition comprising inorganic pigments having nano-scale fine particles.

The real wood may be formed of 0.1-1.0mm thick veneer.

The real wood may include a backing paper bonded to the bottom surface.

The backing paper may be formed of a nonwoven fabric impregnated with an adhesive.

The adhesive is made of polyvinyl acetate, phenol, melamine, urea, polyurethane, polyamide, ethylene vinyl acetate epoxy, polyester, polyvinyl alcohol, acrylonitrile butadiene rubber, styrene butadiene rubber, alkyd, acetyl cellulose, and nitrocellulose. It may be formed of one selected from the group consisting of.

The nonwoven fabric may be formed of at least one composition selected from the group consisting of glass fiber, carbon fiber, polyester fiber, polyamide fiber, polyurethane fiber, acrylic fiber, polyolefin fiber, polyethylene terephthalate fiber, cellulose fiber and pulp.

The backing sheet may include an injection material that is joined to the bottom surface.

The injection is from acrylonitrile butadiene styrene, polyamide (nylon), polycarbonate, polyvinyl chloride, polystyrene, carbon fiber, glass fiber, Bakelite, polyphenylene sulfide, polypropylene and polyethylene. It may be formed of a molten resin comprising one or more selected.

In addition, a method of manufacturing a real wood interior material for improving light resistance and discoloration resistance according to the present invention for achieving the above object comprises: a first step of cutting a thin film form of real wood into a certain form; A second step of disposing a backing paper formed of a non-woven fabric impregnated with a separate adhesive layer or adhesive on the bottom of the real wood and then inserting it into a press mold to form a constant shape while simultaneously bonding the real wood and the backing paper to each other; A third step of inserting the real wood and the backing paper molded into a constant shape into an injection mold and injecting molten resin into the backing paper to form an injection material; And a fourth step of coloring the top surface of the real wood, wherein the fourth step is coloring the real wood as a composition comprising an inorganic pigment having fine particles of nano scale.

In the second step, the back sheet may be cut in the same shape as the real wood and disposed on the bottom of the real wood.

The composition of the fourth step may be applied by a spray method.

The fourth step may further include a fifth step of forming a coating layer on the colored real wood afterwards.

The coating layer may be formed of any one of water-based paint, oil-based paint, synthetic resin-based paint, natural resin-based paint, fibrin-based paint, metal or metal oxide-based paint.

The fifth step may further include a sixth step of polishing the surface of the coating layer.

The sixth step may further include a seventh step of trimming unnecessary ends of the coating layer.

The real wood interior material for improving light resistance and discoloration resistance according to the present invention and a method for manufacturing the same are colored with the top surface of the real wood as a composition containing inorganic pigments having fine particles of nanoscale, and light resistance and resistance to the properties of the inorganic pigment Since the discoloration property can be improved, even if the colored layer is colored with a relatively bright color, since the original color is continuously maintained, coloring of various colors can be achieved, thereby improving the decorative effect by coloring.

1 is a cross-sectional view for explaining the structure of a real wood interior material for improving light fastness and discoloration resistance according to the present invention.
Figure 2 is a schematic process diagram for explaining a method of manufacturing a real wood interior material for improving light resistance and discoloration according to the present invention.
Figure 3 is an exemplary view for explaining the bonding and molding of the real wood and the back ground in the manufacturing method of the real wood interior material for improving light resistance and discoloration according to the present invention.
Figure 4 is an exemplary view for explaining the injection material formation in the manufacturing method of the real wood interior material for improving light resistance and discoloration according to the present invention.
Figure 5 is an exemplary view for explaining the coloring of the real wood in the manufacturing method of the real wood interior material for improving light resistance and discoloration according to the present invention.
Figure 6 is an exemplary view for explaining the coating layer formed on the upper surface of the real wood in the manufacturing method of the real wood interior material for improving light resistance and discoloration according to the present invention.
7 is an exemplary view for explaining the surface polishing of the coating layer in the manufacturing method of the real wood interior material for improving light resistance and discoloration according to the present invention.
Figure 8 is an exemplary view for explaining the trimming of the end of the coating layer in the manufacturing method of the real wood interior material for improving light resistance and discoloration according to the present invention.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

As shown in FIG. 1, the real wood interior material (A) for improving light resistance and discoloration resistance according to the present invention includes a real wood 10 and a colored layer 40.

The real wood 10 is in the form of a thin film of constant thickness.

The real wood 10 may be formed of 0.1-1.0mm thick veneer.

Since the real wood 10 is formed of the veneer, not only is the grip and feel of the touch improved by the unique texture and pattern of the veneer, but also enables a luxurious decoration.

Meanwhile, the real wood 10 may include a backing paper 20 that is joined to the bottom surface.

The backing paper 20 may be formed of a separate adhesive layer or a nonwoven fabric impregnated with an adhesive.

At this time, the adhesive, polyvinyl acetate, phenol, melamine, urea, polyurethane, polyamide, ethylene vinyl acetate epoxy, polyester, polyvinyl alcohol, acrylonitrile butadiene rubber, styrene butadiene rubber, alkyd, acetyl cellulose and nitro It may be formed of one selected from the group consisting of cellulose.

In addition, the nonwoven fabric may be formed of at least one composition selected from the group consisting of glass fiber, carbon fiber, polyester fiber, polyamide fiber, polyurethane fiber, acrylic fiber, polyolefin fiber, polyethylene terephthalate fiber, cellulose fiber and pulp. have.

In addition, the backing sheet 20 may include an injection 30 that is bonded to the bottom surface.

The injection 30 is bonded to the lower portion of the backing paper 20 to support the real wood 10 and the backing paper 20.

The injection 30 is acrylonitrile butadiene styrene, polyamide (nylon), polycarbonate, polyvinyl chloride, polystyrene, carbon fiber, glass fiber, Bakelite, polyphenylene sulfide, polypropylene and It may be formed of a molten resin comprising at least one selected from the group consisting of polyethylene.

Since the molten resin is cured from the molten state, it is possible to stably support the real wood 10 and the backing paper 20 through the injection 30.

The colored layer 40 is formed on the upper surface of the real wood 10 to impart color to the real wood 10.

The colored layer 40 is formed as a composition containing an inorganic pigment having nano-scale fine particles as a pigment.

At this time, the inorganic pigment having nano-scale fine particles is particularly excellent in light resistance and discoloration resistance due to material and particle size characteristics, so that even if the colored layer 40 is exposed to light for a long time, discoloration is prevented.

And as shown in Figure 2, the manufacturing method of the real wood interior material (A) for improving light resistance and discoloration according to the present invention, the first step (S1), the second step (S2), the third step (S3) and a fourth step (S4).

In the first step (S1), the thin-film real wood 10 is cut into a certain shape.

In the first step (S1), the cutting of the real wood 10 may be performed using any conventional means, for example, ultrasonic cutting, laser cutting, punching cutting, and the like.

In the second step (S2), as shown in FIG. 3, after placing the backing paper 20 on the bottom of the real wood 10, it is put into a press mold 100 to insert the real wood 10 and the backing paper. (20) is molded into a constant shape at the same time as mutual bonding.

In this second step (S2), the backing paper 20 is cut in the same form as the real wood 10 and is disposed on the bottom of the real wood 10, so that the outer and outer surfaces of the backing paper 20 are real. As the outer edges of the wood 10 coincide, deterioration of aesthetics due to the mismatch between the outer edge of the backing paper 20 and the outer edge of the real wood 10 is prevented.

Since the above-mentioned backing sheet 20 has been described in detail previously, further explanation is omitted.

In the third step (S3), the real wood 10 and the backing paper 20, which are mutually bonded and formed in a certain shape as shown in FIG. 4, are introduced into the injection mold 200, and then the backing paper ( 20) The molten resin is injected to the side to form an injection 30.

The injection material 30 was previously described in detail, and further explanation is omitted.

In the fourth step (S4), the real wood 10 is colored with a composition containing an inorganic pigment having fine particles of nano scale as a pigment.

In this fourth step (S4), the composition may be applied by a spray method as shown in FIG. 5.

As the composition is applied by a spray method, not only the coloring operation can be completed in a short time, but also the coloring layer 40 can be formed relatively thin, so that an increase in product thickness is minimized.

In addition, the fourth step (S4) may further include a fifth step (S5) of forming a coating layer 50 on the upper surface of the real wood 10, as shown in FIG. 6 afterwards.

The real wood 10 may be protected by the coating layer 50 by forming the coating layer 50 on the upper surface of the real wood 10.

The coating layer 50 may be formed by a method of injecting paint into a coating mold (not shown in the figure) when a glossy type appearance is to be realized, and as a spraying device to achieve a matte type appearance. It can be formed by a spraying method.

At this time, the coating layer 50 is formed of any one of an aqueous-based paint, an oil-based paint, a synthetic resin-based paint, a natural resin-based paint, a fibrin-based paint, a metal or metal oxide-based paint, and minimizes stickiness and the like to minimize grip and feel. Can be improved.

In addition, the fifth step (S5) may further include a sixth step (S6) of polishing the surface of the coating layer 50, as shown in FIG. 7 afterwards.

The surface of the coating layer 50 is polished, so that not only the leveling effect of the surface of the coating layer 50 but also the gloss is added, the appearance is improved.

At this time, the polishing of the coating layer 50 may be performed by any conventional method, and an example thereof may be a polishing brush.

And the sixth step (S6) may further include a seventh step (S7) of trimming the unnecessary end of the coating layer 50, as shown in FIG.

The unnecessary end of the coating layer 50 is trimmed to improve the appearance.

At this time, the trimming of the coating layer 50 may be performed by any conventional method, and examples thereof may include ultrasonic cutting, laser cutting, punching cutting, and the like.

According to the real wood interior material (A) for improving light resistance and discoloration resistance according to the present invention and its manufacturing method, discoloration of the coloring color is prevented, and coloring of various colors is possible, thereby improving the decorative effect by coloring. The details are as follows.

In the present invention, the upper surface of the real wood 10 is colored by the fourth step (S4).

Therefore, a decorative effect due to coloring can be obtained.

However, when the colored color is discolored by being exposed to light for a long time, since the original color cannot be maintained, the decorative effect due to coloring may be deteriorated.

However, in the present invention, the upper surface of the real wood 10 is colored with a composition containing an inorganic pigment having fine particles of nano scale as a pigment, and thus, the properties of the inorganic pigment, that is, light resistance and discoloration resistance are excellent. Even if it is exposed to light for a long time, the original coloring color is maintained without discoloration.

Therefore, since the upper surface of the real wood 10 can be colored in various colors, that is, in addition to a brown-based dark color, a beige-based bright color, the decorative effect can be further enhanced by coloring various colors.

At this time, the upper surface of the real wood 10 is any one of an aqueous-based paint, an oil-based paint, a synthetic resin-based paint, a natural resin-based paint, a fibrin-based paint, a metal or metal oxide-based paint by the fifth step (S5). Since the coating layer 50 may be formed, the coating layer 50 not only protects the real wood 10, but also protects the coloring layer 40 formed on the upper surface of the real wood 10. The damage of the layer 40 can be prevented, so that the decorative effect by coloring can be maintained continuously.

As described above, the real wood interior material (A) for improving light resistance and discoloration resistance according to the present invention and a method for manufacturing the same are colored with the top surface of the real wood as a composition comprising an inorganic pigment having nano-scale fine particles. In light of the characteristics of the inorganic pigment, light resistance and discoloration resistance can be improved, so even if the real wood is colored with a relatively bright color, since the original color is continuously maintained, coloring of various colors can be achieved to increase the decorative effect by coloring. have.

Since the present invention as described above is not limited to the above-described embodiments, it can be changed within a range not departing from the gist of the present invention claimed in the claims, and such changes are defined by the following claims It is within the protection scope of the invention.

10: real wood 20: back ground
30: injection 40: colored layer
50: coating layer 100: press mold
200: Injection mold A: Real wood interior material
S1: First stage S2: Second stage
S3: 3rd step S4: 4th step
S5: Step 5 S6: Step 6
S7: Step 7

Claims (15)

Real-wood in the form of a thin film having a constant thickness formed of 0.1-1.0mm thick veneer; And
A colored layer formed on a top surface of the real wood and formed of a composition comprising inorganic pigments having nano-scale fine particles to impart color to the real wood;
Polyvinyl acetate, phenol, melamine, urea, polyurethane, polyamide, ethylene vinyl acetate epoxy, polyester, polyvinyl alcohol, acrylonitrile butadiene rubber, styrene-butadiene rubber, alkyd, acetyl cellulose, and the like bonded to the bottom of the real wood A backing paper formed of a nonwoven fabric impregnated with an adhesive formed of one selected from the group consisting of nitrocellulose;
Acrylonitrile butadiene styrene, polyamide (nylon), polycarbonate, polyvinyl chloride, polystyrene, carbon fiber, glass fiber, Bakelite, polyphenylene sulfide, polypropylene and polyethylene bonded to the bottom of the backing paper. Injection material formed of a molten resin containing at least one selected from the group consisting of; Realwood interior material for improving light resistance and discoloration that is formed. delete delete delete delete According to claim 1,
The nonwoven fabric is formed of at least one composition selected from the group consisting of glass fiber, carbon fiber, polyester fiber, polyamide fiber, polyurethane fiber, acrylic fiber, polyolefin fiber, polyethylene terephthalate fiber, cellulose fiber, and pulp. Real Wood interior material for improving light resistance and discoloration resistance.
delete delete A first step of cutting a thin film-shaped real wood formed of a 0.1-1.0mm thick veneer into a constant shape;
A second step of arranging a backing paper formed of a nonwoven fabric impregnated with a separate adhesive on the bottom of the realwood and inserting it into a press mold to form a constant shape while simultaneously bonding the realwood and the backing paper to each other;
A third step of inserting the real wood and the backing paper molded into a constant shape into an injection mold and injecting molten resin into the backing paper to form an injection material;
A fourth step of applying a composition containing an inorganic pigment having nano-scale fine particles on the top surface of the real wood by spraying and coloring the composition;
A fifth step of forming a coating layer on the colored real wood;
A sixth step of polishing the surface of the coating layer; And
A seventh step of trimming an unnecessary end of the coating layer; Including,
The second step is a method of manufacturing a real wood interior material for improving light fastness and discoloration resistance, wherein the back sheet is cut in the same shape as the real wood and placed on the bottom of the real wood. delete delete delete The method of claim 9,
The coating layer of the fifth step is formed of any one of water-based paint, oil-based paint, synthetic resin-based paint, natural resin-based paint, fibrin-based paint, metal or metal oxide-based paint for improving light resistance and discoloration resistance Manufacturing method of real wood interior material. delete delete

Images