KR100215605B1 - Decorative board and manufacture thereof - Google Patents

Abstract

It is possible to achieve rust prevention of the panel body, and to suppress the discoloration and discoloration of the dye and to obtain a decorative plate with stable color for a long time.

The decorative plate is composed of a panel substrate (1), an opaque resin layer (21), a coloring layer (5) and an upper coating layer (6) in which an anthraquinone-based sublimation dye is mixed as a dye. As a fading inhibitor, it contains a ultraviolet absorber (benzotriazole) and a light stabilizer (hindered amine type).

Description

Decorative plate and manufacturing method thereof

1 is a cross-sectional configuration of the decorative plate of one embodiment of the present invention,

2 is a process diagram showing a method of manufacturing a decorative plate of an embodiment of the present invention step by step.

TECHNICAL FIELD This invention relates to the decorative plate used for decorative panels, such as a wall material of an elevator interior room, a door of a boarding point, a refrigerator panel, etc., and its manufacturing method.

In the conventional metal decorative panel, an anti-rust coating layer is formed on the surface of the metal plate, and then, by hand and by adhesion of a shape-adhering sheet (eg, vinyl chloride film, cloth, or the like) or by screen printing. The surface is colored or colored. Among the above, especially coloring by screen printing is generally performed a lot. However, the coloring method by screen printing is complicated by many processing processes and requires a lot of time for manufacture. In particular, in the case of forming shapes of various colors, the same number of screen plates as the number of colors is required, and at the same time, the number of steps for superimposing the coating increases. In addition, since the screen plate must be produced each time the shape is changed, there is a problem in that the manufacturing cost increases.

In order to solve the above problems, a transparent resin layer is formed on a coating layer made of an opaque resin that serves as a rust preventive method provided on a metal panel holder, and a colored shape is formed by subliming a sublimation type coloring agent provided on a transfer type coating sheet thereon. The method of forming a top coat layer is proposed. According to this method, manufacturing time can be shortened and manufacturing cost can be reduced.

However, the biggest drawback in carrying out the method is that because of the use of a dye, the color is discolored due to light and a predetermined color is not obtained permanently.

Conventionally, as a countermeasure thereof, for example, as described in JP-A-52-53942, a top coat layer provided on a basic coating layer containing a pigment, or JP-A As described in 3-29201, a method of preventing the weakening of resins or the discoloration of pigments or dyes due to light by adding a fading inhibitor such as an ultraviolet absorber or a light stabilizer to a top coat layer containing a dye has been proposed. have. According to this method, the fading inhibitor is present in the coating layer of the light-coated top layer, and the fading inhibitor moves to the surface layer of the coating to exert its effect. There is a problem in that it is not possible to maintain the effect permanently.

In addition, Japanese Patent Application Laid-Open No. 6-47,338 applies a neutral coating material containing a fading inhibitor to a surface to be coated, and then forms a top coat film containing a fading inhibitor thereon to form pigments on both layers. It appears that the weather resistance of the coating film is improved regardless of whether it contains or prevents the weakening of the coating film. However, although the use of the pigment as a colorant is described in the examples of the conventional example, the pigment is less reactive than the dye and excellent in the medical resistance, so that the discoloration of the pigment in the coating is not a problem. There is a problem that the degree of fading inhibitory effect is not obvious when applied to a dye having high reactivity which is indispensable.

The present invention has been made to solve such a problem, and it is possible to suppress the discoloration and discoloration of the dye, and to obtain a decorative plate with stable color for a long time, and a decorative plate with improved contrast and smoothness.

In addition, it is possible to obtain a method of manufacturing a decorative plate, which can reduce the manufacturing time of the decorative plate and at the same time reduce the manufacturing cost.

The 1st aspect of this invention formed the colored layer and the top coat layer in which the dye mixed and the coloring pattern was formed in the panel base material, and is a decorative plate containing a fading inhibitor in one or both of a colored layer and a top coat layer.

In a second aspect of the present invention, in the first aspect, the fading inhibitor is at least one of a ultraviolet absorber, a light stabilizer, and a singlet oxygen inhibitor.

3rd aspect of this invention WHEREIN: 1st aspect WHEREIN: One or both of a coloring layer and a top coat layer contains a fading inhibitor in 0.1 to 20 weight% of each layer.

In a 4th aspect of this invention, in a 1st aspect, a sublimation type coloring agent mixes with a transparent resin, and a coloring pattern is formed.

In a 5th aspect of this invention, in a 1st aspect, a colored layer or a top coat layer is one or more of an acrylic resin, a urethane resin, and polyester resin, and resin containing it.

In a sixth aspect of the present invention, in the first aspect, one or more of the colored layer and the top coat layer are formed by stacking several layers.

According to a seventh aspect of the present invention, a colored plate and a top coat layer in which a dye is mixed to form a colored pattern are formed on a panel substrate provided with an opaque resin layer, and a decorative plate containing a fading inhibitor in one or both of the colored layer and the top coat layer. to be.

According to an eighth aspect of the present invention, there is provided a transparent resin layer on a panel substrate, superimposing a transfer-type coating sheet having a colored shape by a sublimation colorant on a transparent resin layer, subliming the sublimation colorant to a transparent resin layer. A method of manufacturing a decorative plate containing a fading inhibitor in one or both of a transparent resin layer and a top coat layer, the method comprising the steps of transferring a colored pattern to form a transparent resin layer as a colored layer and forming a top coat layer in the colored layer. It is a manufacturing method.

A ninth aspect of the present invention is the method for producing a decorative plate, wherein in the eighth aspect, the transfer is thermal transfer or vacuum transfer.

In the first aspect of the present invention, since the top coat layer is formed in the colored layer and the fading inhibitor is contained in one or both of the colored layer and the top coat layer, discoloration and discoloration of dyes that are more reactive than pigments can be suppressed. This is stable in the long run.

In the second aspect of the present invention, the fading inhibitory effect of the dye is good if the fading inhibitor is at least one of a ultraviolet absorber, a light stabilizer and a singlet oxygen inhibitor.

In the third aspect of the present invention, when the discoloration inhibitor is contained in one or both of the colored layer and the top layer in an amount of 0.1 to 20% by weight of each layer, a decorative plate having excellent properties can be obtained. If it is less than 0.1% by weight, there is no inhibitory effect. If it exceeds 20% by weight, the film strength is lowered.

In the 4th aspect of this invention, when a sublimation type coloring agent mixes with a transparent resin, and a coloring pattern is formed, there is a three-dimensional feeling and the color of a coloring agent becomes clear.

In the fifth aspect of the present invention, if the colored layer or the top coat layer is at least one of an acrylic resin, a urethane resin, and a polyester resin and a resin containing the same, a decorative plate having excellent diffusion colorability and fixation of the dye is obtained.

In the sixth aspect of the present invention, when at least one of the colored layer and the top coat layer is formed by laminating in multiple layers, the characteristics are improved, such as the formation of a smooth thick film is facilitated and the occurrence of pinholes is reduced.

In the seventh aspect of the present invention, since the colored layer and the top coat layer are formed on the panel substrate forming the opaque resin layer, and the fading inhibitor is contained in one or both of the colored layer and the top coat layer, it is added to the invention of the first aspect. As a result, by forming an opaque layer on the panel substrate, smoothness and lightness are improved.

In the eighth aspect of the present invention, the method includes forming a transparent resin layer on a decorative plate, superposing a transfer-type coating sheet subjected to a coloring pattern by a sublimation colorant on a transparent resin layer, and sublimating the sublimation colorant to make transparent water. In the manufacturing method of transferring a colored pattern to a layer, making a transparent resin layer into a colored layer, and forming a top coat layer in a colored layer, When one or both of a transparent resin layer and a top coat layer contain a fading inhibitor, In addition, it is easy to process a decorative plate in which the discoloration of the dye is suppressed and a manufacturing method can be obtained in which the manufacturing time is shortened.

In the ninth aspect of the present invention, if the transfer is thermal transfer or vacuum transfer, the color development and fixability of the dye can be improved and various shapes can be formed in a short time regardless of the area.

EXAMPLE

The fading inhibitor according to the present invention is contained in one or both of the colored layer in which the sublimation type colorant is mixed to form a colored pattern and the top layer formed thereon, and uses at least one of an ultraviolet absorber, a light stabilizer and a singlet oxygen inhibitor. . In addition, the fading inhibitor can be contained in one or both of the colored layer and the top coat layer. In particular, the inclusion of the light stabilizer in the colored layer has a great effect of suppressing the weakening of the dye. In addition, when the singlet oxygen inhibitor is contained in the colored layer among the fading inhibitors, the color development of the dye may be inhibited, which is not preferable.

The content of the fading inhibitor is 0.1 to 20% by weight of the colored layer or the top coat, and preferably 1 to 10% by weight. Increasing the amount of the fading inhibitor decreases the strength of the film and cannot be used practically, while decreasing the amount of the fading inhibitor is insufficient in the inhibitory effect.

Salicylic acid type, such as phenyl salicylate, p-tert- butyltenyl salicylate, and p-octylphenyl salicylate, as a ultraviolet absorber, 2, 4- dihydroxy benzophenone, 2-hydroxy-4- methoxy benzo Phenone, 2-hydroxy-4-octoxybenzophenone, 2-hydroxy-4-dodecyloxybenzophenone, 2,2'-dihydroxy-4-meshbenzophenone, 2,2'-dihydroxy Benzophenones such as -4,4'-methoxybenzophenone and 2-hydroxy-4-methoxy-5-sulfobenzophenone, 2- (2'-hydroxy-5'-methylphenyl) benzotriazole, 2- (2'-hydroxy-5'-methylphenyl) benzotriazole, 2- (2'-hydroxy-5'-terr-butylphenyl) benzotriazole, 2- (2'-hydroxy-3 ' , 5'-di-terr-butylphenyl) benzotriazole, 2- (2'-hydroxy-3'-tert-butyl-5'-methylphenyl) -5-chlorobenzotriazole, 2- (2'- Benzotriazoles such as hydroxy-3 ', 5'-di-tert-butylphenyl) -5-chlorobenzotriazole and 2- (2'-hydroxy-4'-octoxyphenyl) benzotriazole, Cyano acrylates such as 2-ethylhexyl-2-cyano-3,3'-diphenyl acrylate and ethyl-2-cyano-3,3'-diphenyl acrylate; Or may be used in combination. Of these, the benzotriazole type is appropriate.

Bis- (1-octyloxy-2,2,6,6-tetramethyl-4-piperidyl) sebacate, bis- (1,2,2,6,6-pentamethyl-4-pi as light stabilizer Ferridyl) sebacate, bis- (2,2,6,6-tetramethyl-4-piperidyl) sebacate, dimethyl succinate, 1- (2-hydroxyethyl) -4-hydroxy-2, There are piperidine-based and hindered amine-based compounds such as 2,6,6-tetramethylpiperidine polycondensate, and a hindered amine-based one having a molecular weight of about 200 to 3,000 and about 800 among them is appropriate. These compounds can be used alone or in combination.

As the singlet oxygen inhibitor, benzene sulfonate nickel salt, p-toluene sulfonate nickel salt, dimethyldithiocarbamate nickel salt, di-n-butyldithiocarbamate nickel salt, tetrabutylphosphonium bis (1,2-benzenedithiol Rate) Nicolate (III). Tetrabutylphosphonium bis (4-methyl-1,2-benzenedithiolate) nicolate (III) and the like. Among these, the nickel p-toluenesulfonic acid salt is a colorless singlet oxygen inhibitor, so It is less likely to be adversely affected and can be used in combination with dyes. These compounds can be used alone or in combination.

As the resin used in the colored layer and the top coat layer according to the present invention, any known dye may be used, and any paint may be used as the main component of the resin which is cured and crosslinked by heating, normal temperature or electron beam. For example, resin which has one or more of acrylic resin, urethane resin, and polyester resin as a main component, and resin containing these are mentioned. However, what kind of paint is a transparent non-colored resin paint, since the color of dye can be obtained vividly, and it is preferable.

The colored layer and the top layer according to the present invention may be composed of a single layer or multiple layers and may not be the same resin. In the case of multilayers, it is possible to disperse even when using several inhibitors and to prevent the reaction between the inhibitors, which improves the properties, and also prevents peeling like orange so that smooth thick film formation is facilitated and pinholes are generated. Is prevented.

As a resin used for the opaque resin layer which concerns on this invention, a well-known paint can be used, For example, an acrylic resin, a melamine resin, etc. can be used. When the opaque resin layer made of the above resin is formed on the panel substrate, the smoothness and the selectivity of the colored layer are improved. Moreover, the opaque resin which has rust prevention property is preferable.

As the dye according to the present invention, known dyes can be used. For example, there are azo-based, anthraquinone-based, quinoline-based, pelinone-based, and the like, and those having sublimation among these dyes can be applied to a transfer type coating sheet.

Moreover, as a material of the panel body which concerns on this invention, metal, such as a copper plate, plastics, and ceramics, organic, an inorganic, a composite material can be used, A soft material becomes difficult to form each layer mentioned above.

1 shows a decorative panel cross-sectional view of the decorative plate of one embodiment of the present invention. In the figure, (1) is a panel holding material, (5) is a colored layer, (6) is a top coat layer, (21) is an opaque resin layer, and (22) is a sublimation type coloring material (sublimation color toner). (23) is a fading inhibitor. That is, the opaque resin layer 21 which consists of a white coating material is formed in the surface of the panel base material 1, for example. On the opaque resin layer 21, for example, the sublimation type color toner 22 and the fading inhibitor 23 are mixed in a transparent resin made of a transparent paint (creeper) such as an acrylic paint, a polyester paint, and a urethane paint. And the coloring layer 5 is comprised. Also, a top coat layer 6 containing a fading inhibitor is formed on the colored layer 5 to prevent scratches or to prevent fading.

2 (a) to 2 (g) are process diagrams showing the manufacturing method of the decorative panel step by step. That is, the transfer type coating sheet 26 is manufactured by printing the colored pattern by the sublimation color toner 22 on the transfer paper 25 using the sublimation printer 24 (refer to FIG. 2 (a)). At this time, the sublimation printer 24 can be connected to a personal computer or the like to design a colored pattern freely.

On the other hand, the opaque resin layer 21 is formed on the surface of the panel base 1 by applying an antirust coating on the base (see Fig. 2 (b)). After drying the opaque resin layer 21 (refer to FIG. 2 (c)). The transparent resin containing a fading inhibitor is apply | coated on it, it is made to dry, a transparent resin layer is formed, and the transfer type application sheet 26 is superimposed on a transparent resin layer (refer FIG. 2 (d)). The transfer-type coating sheet 26 is heat press-transferred or vacuum-transferred at an appropriate temperature and pressure using the heating press rollers 44 and 45 of the horizontal plane and the vertical plane. As a result, the sublimation color toner 22 of the transfer type coating sheet 26 is sublimed and mixed into the transparent resin layer 55 (FIG. 2 (e)). When the transfer type coating sheet is peeled off, the transparent resin layer is colored. The shape is transferred to form the colored layer 5 (see Fig. 2 (f)). Finally, a transparent resin containing a fading inhibitor is applied and dried to form a top coat layer 6 to complete the decorative panel (see FIG. 2 (g)).

[Examples 1 to 7]

First, a white paint (trade name: Majikron (Kansai Paint Co., Ltd.)) is spray-coated to a thickness of about 40 μm on a steel plate which is a panel, and heat-cured at 170 ° C. for 30 minutes. Next, a fading inhibitor (benzotriazole-based ultraviolet absorber, hindered amine-based light stabilizer, p-toluenesulfonic acid nickel salt singlet oxygen inhibitor) was combined as shown in Table 1, containing 5% by weight of each transparent paint [ Trade name: Majikron C Clear (Kansai Paint Products)] is spray applied and heat cured at 170 캜 for 30 minutes.

TABLE 1

Example 10 vacuum transfer

Subsequently, the transfer-type coated sheet in which the colored form was formed with an anthraquinone-based sublimation dye was thermally transferred using a heat press, and thereafter, each containing 5% by weight of the ultraviolet absorber and / or the light stabilizer of the combinations shown in Table 1 above. A transparent coating (trade name: Majikron C Clear (Kansai Paint Products)) was sprayed and heat cured at 170 ° C for 30 minutes. The decorative plates of the inventive examples of Examples 1 to 7 thus obtained are irradiated with a sunshine weather meter (manufactured by Sugashi Kengi) for 180 hours. Subsequently, the degree of discoloration before and after irradiation is examined with a color difference meter with reference to the same irradiation as described above for not containing dye in the decorative plate. Evaluation evaluates (circle) and the case of 3E S as (DELTA) and E5 as the case of color difference (E) <= 3 or less. In addition, the irradiation of the sunshine weather meter is 40 times the acceleration magnification for outdoor exposure.

[Examples 8 and 9]

A decorative panel was produced and evaluated in the same manner as in Example 5, except that the operation of forming the colored layer 5 or the top coat layer 6 containing the fading inhibitor in Example 5 was repeated three times and the layers were laminated in three layers. The results are shown in Table 1.

Example 10

A decorative panel was produced and carried out in the same manner as in Example 4, except that the transfer-type coating sheet 26 in which the colored shape was applied using the sublimation colorant in Example 4 was transferred to the transparent resin layer by vacuum transfer to form a colored layer. It evaluates similarly to Example 4, and shows a result in Table 1.

Comparative Example 1

Except that the colored layer 5 and the top coat layer 6 did not contain a fading inhibitor, the decorative plate was manufactured by the same method as Example 1, and evaluated similarly to Example 1, and the result is shown in Table 1.

In Comparative Example 1, in which the discoloration inhibitor was not contained in both the colored layer and the top coat layer, the dye discoloration was observed from the evaluation results of Table 1, whereas in the case of containing the discoloration inhibitor in one of both layers or each layer was multilayered. In this case, this tendency is strongly seen.

In addition, in the above-described Examples and Comparative Examples, the colored layer 5 is formed on the panel substrate 1 through the opaque resin layer 21, and the opaque resin layer 21 is omitted, and the colored layer is directly on the panel substrate 1. (5) can be formed. For example, when a stainless steel plate, a brass plate, an aluminum plate, etc. are used as the panel base material 1, the surface of the panel base material 1 is subjected to mirror processing, hairline processing, puff polishing process, etc., and the transparent resin plate is formed thereon. By applying and forming a colored shape in the same manner as above, a unique texture can be obtained. However, when it is necessary to rust as the panel base material 1, it is preferable to form the opaque resin layer 21. FIG. In addition, it is not limited to the dye used in the above-mentioned embodiment, and other dyes have the same effect of inhibiting fading.

According to the first aspect of the present invention, by including a fading inhibitor in one or both of the colored layer and the top coat layer, discoloration fading of the dye can be suppressed and a decorative plate with stable color in the long term can be obtained.

According to the second aspect of the present invention, if the fading inhibitor is at least one of a ultraviolet absorber, a light stabilizer and a singlet oxygen inhibitor, a decorative plate capable of satisfactorily preventing discoloration of the dye can be obtained.

According to the third aspect of the present invention, when the discoloration inhibitor contains 0.1 to 20% by weight of each layer on one or both of the colored layer and the top coat layer, a decorative plate capable of effectively preventing discoloration of the dye can be obtained.

According to the 4th aspect of this invention, when a sublimation type coloring agent mixes with transparent resin and a coloring pattern is formed, there is a three-dimensional feeling and the color of a coloring agent becomes clear.

According to the fifth aspect of the present invention, if the colored layer or the top coat layer is at least one of an acrylic resin, a urethane resin, and a polyester resin, a decorative plate having good diffusion colorability of dyes and excellent fixability can be obtained.

According to the sixth aspect of the present invention, when at least one of the colored layer and the top coat layer is formed by being laminated in multiple layers, a thick film is easily formed and a decorative plate having excellent characteristics can be obtained.

According to the seventh aspect of the present invention, in addition to forming an opaque resin layer on the panel substrate and containing a fading inhibitor in one or both of the colored layer and the top coat layer, a decorative plate having improved smoothness and conspicuity can be obtained in addition to the effect of claim 1. can do.

According to the eighth aspect of the present invention, the method includes forming a transparent resin layer on a decorative plate, superimposing a transfer-type coating sheet on which a color pattern by a sublimation colorant is applied, onto a transparent resin layer, subliming the sublimation colorant, and then transparent resin layer. In the manufacturing method of the step of forming on, if one or both of the transparent resin layer and the top coat layer contains a fading inhibitor, it is possible to form a high-resolution colored shape while ensuring color development, light resistance, etc. It is possible to obtain a method of manufacturing a decorative plate that can simplify the manufacturing time and reduce the manufacturing cost.

According to the ninth aspect of the present invention, if the transfer is thermal transfer or vacuum transfer, the color development and fixability of the dye can be improved and a multicolored shape can be formed in a short time regardless of the area.

Claims (8)

A decorative plate comprising a panel material, a colored layer formed on the panel material and having dyes mixed therein to form a colored pattern, and a topcoat layer formed on the colored layer, A decorative plate, wherein the colored layer contains an ultraviolet absorber, a light stabilizer and a singlet oxygen inhibitor, and the top coat layer contains an ultraviolet absorber. The decorative plate according to claim 1, wherein the amount of the ultraviolet absorber and the light stabilizer contained in the colored layer and the amount of the ultraviolet absorber contained in the top coat layer are respectively 0.1 to 20% by weight of each layer. The decorative plate according to claim 1, wherein the colored layer is a sublimation type colorant incorporated into the transparent resin to form a colored pattern. The decorative plate according to claim 1, wherein the colored layer or the top coat layer is at least one of an acrylic resin, a urethane resin, and a polyester resin and a resin containing the same. The decorative plate according to claim 1, wherein at least one of the colored layer and the top coat layer is formed by being laminated in several layers. A decorative plate having a panel body, an opaque resin layer formed on such a panel body, a colored layer formed on the opaque resin layer and mixed with dye to form a colored shape, and a top coat layer formed on the colored layer, A decorative plate, wherein the colored layer contains an ultraviolet absorber, a light stabilizer, and a singlet oxygen inhibitor, and the top layer contains an ultraviolet absorber. Forming a transparent resin layer on the panel substrate, superimposing the transfer-type coated sheet subjected to the coloring pattern by the sublimation type coloring agent on the transparent resin layer, sublimating the sublimation type coloring agent to transfer the coloring shape to the transparent resin layer, In the manufacturing method which performs a step which makes a base layer into a colored layer, and forms a top coat layer in a colored layer, The transparent resin layer contains a ultraviolet absorber, a light stabilizer and a singlet oxygen inhibitor, and the top coat layer contains a ultraviolet absorber. The method of manufacturing a decorative plate according to claim 7, wherein the transfer is thermal transfer or vacuum transfer.