JPH07237287A - Decorative material - Google Patents

Abstract

PURPOSE:To obtain a decorative material with faithful reproduction of a surface tissue and a glossiness of a diffuse-porous wood by a method wherein an emboss made of fine projected and recessed parts running in a grain running direction is formed on one surface of a transparent thermoplastic resin layer, the recessed parts of the emboss are filled with a coloring resin layer, and a grain pattern printing layer is provided on the other surface of the transparent thermoplastic resin layer. CONSTITUTION:An emboss 6 made of fine projected and recessed slot parts is formed on one surface of a transparent thermoplastic resin layer 1. A coloring resin layer 4 is charged in the recessed parts so as to cover the emboss 6 all over. A protective layer 5 is formed thereon. A grain pattern printing layer 2 is provided on the lower surface of the transparent thermoplastic resin layer 1. The emboss 6 formed on the surface of the transparent thermoplastic resin layer 1 is so shaped as to be slotted straight or curvedly in parallel to a grain and continuously finely projected and recessed at right angles to the grain. A surface tissue and a surface glossiness of a diffuse-porous wood can be reproduced by the synergistic effect of the emboss 6, the coloring resin layer 4, and the grain pattern printing layer 2.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a decorative material used as a surface material such as furniture, a cabinet for light electric appliances, a wall material, a floor material and the like.

[0002]

2. Description of the Related Art Conventionally, as a decorative material in which an emboss is formed on the surface to reproduce a wood grain pattern, a fine line-shaped concave portion corresponding to a wood grain canal is formed on the surface of a base material made of a thermoplastic resin. A decorative material in which a colored resin is filled in the recess of the tube by wiping is generally known. Further, a regular hairline or linear embossing is formed on the surface of a base material made of a thermoplastic resin as described in JP-A-5-4319 to give an appearance based on the fiber bundle structure in a coniferous wood grain board. Reproduced is known.

However, in the former cosmetic material, the embossing on the surface is a reproduction of the conduit by partially forming fine line-shaped grooves corresponding to the conduit, and a fiber bundle structure on the surface of the wood. It is not a reproduction of the corresponding fine irregularities. In addition, the latter cosmetic material also reproduces the appearance and gloss based on the fiber bundle structure of conifers by forming regular hairline-like or linear embossing. Because of its nature, an artificial image is unavoidable, and it is difficult to express the natural shape of the fibrous structure of wood made of pore materials.

[0004]

The object of the present invention is to provide the surface texture and luster of wood made of pore materials such as maple, mizume, wig, dog beech, phoenix, boxwood, etc. without giving an artificial image, It is an object of the present invention to provide a decorative material that is faithfully reproduced and has an excellent design property, and further, a cosmetic material that has a faithfully reproduced surface and is colored to give a feeling of dyeing a real tree.

[0005]

[Means for Solving the Problems] On one surface of a transparent thermoplastic resin layer, an embossing is formed, which is formed by fine unevenness of a linear groove or a curved groove group running in the running direction of wood grain. The decorative material is characterized in that a colored resin layer is formed in a filled state, and a grain pattern printing layer is provided on the other surface of the transparent thermoplastic resin layer.

A cross-sectional shape of the embossing perpendicular to the running direction has a depth of 5 to 60 microns and a spatial frequency of 500 to.
The decorative material has the peak of the spatial frequency power spectrum in the range of 10000 [1 / m].

The above-mentioned decorative material is characterized in that the color tone of the colored resin layer is a transparent color similar to that of the grain pattern printing layer.

[0008]

By using the decorative material of the first item, it is possible to obtain a decorative material having a feeling of dyeing genuine wood, and further, the embossed shape having the fine irregularities has a depth of 5 to 5. 60 micron, spatial frequency 500-10,000
A shape having a peak of the spatial frequency power spectrum in the range of [1 / m], a transparent colored resin layer is formed in a state of filling the recess of the emboss, and a wood grain pattern is printed on the other surface of the transparent thermoplastic resin layer. By providing the layered structure, it is possible to obtain a decorative material excellent in design that faithfully reproduces the wood structure, surface gloss, etc. of the pore-forming material.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings. FIG. 1 is a view showing a first embodiment of a decorative material of the present invention, (a) is a cross-sectional view showing a laminated structure, (b) is a plan view showing a surface state, and FIG. 2 is a schematic view of a decorative material of the present invention. 2 is a cross-sectional view showing a laminated structure in the embodiment, FIG. 3 is a view showing an uneven cross-sectional shape of an emboss in a direction perpendicular to a grain in the embodiment of the decorative material of the present invention,
FIG. 4 is a diagram showing a power spectrum of an embossed uneven shape in a direction perpendicular to a grain in an example of the decorative material of the present invention, in which 1 is a transparent thermoplastic resin layer, 2 is a grain pattern printing layer, 3
Is a laminated material layer, 4 is a colored resin layer, 5 is a protective layer, and 6 is an emboss.

The laminated structure in the first embodiment of the decorative material of the present invention is, as shown in FIG. 1 (a), a transparent thermoplastic resin layer 1
An embossment 6 consisting of fine irregularities in the form of a groove is formed on the surface of the groove, a colored resin layer 4 is filled in the recess so as to cover the entire surface of the embossment 6, and a protective layer 5 is further formed on the colored resin layer 4 to form a transparent heat The lower surface of the plastic resin layer 1 is provided with a grain pattern printing layer 2. The shape of the emboss 6 formed on the surface of the transparent thermoplastic resin layer 1 is, as shown in FIG. 1B, a straight or curved groove in the direction parallel to the grain and is continuous in the direction perpendicular to the grain. Has fine irregularities.
The emboss 6 provided on the upper surface of the transparent thermoplastic resin layer 1 and the colored resin layer 4 provided so as to fill the concave portion, and the grain pattern printing layer 2 provided on the lower surface of the transparent thermoplastic resin layer 1 Due to the effect, the surface texture and surface gloss of the pore-dispersing material are reproduced.

As shown in FIG. 2, the laminated construction of the second embodiment of the decorative material of the present invention is such that the embossment 6 having fine grooves and grooves is formed on the surface of the transparent thermoplastic resin layer 1, and the embossment 6 is formed. A colored resin layer 4 made of a transparent colored resin is formed so as to cover the entire surface with a constant thickness and to fill the concave portion, and a grain pattern printing layer 2 is provided on the lower surface of the transparent thermoplastic resin layer 1. In the second embodiment, the protective layer 5 is not provided, and the colored resin layer 4 made of a transparent colored resin is provided so as to fill the concave portion of the emboss 6 and form a layer having a constant thickness on the entire embossed surface. The colored resin layer 4 also serves as the protective layer 5. In the case of this structure, it is necessary to use, as the resin forming the colored resin layer 4, a resin having excellent surface physical properties such as abrasion resistance.

As shown in FIG. 3, the cross-sectional shape of the emboss 6 provided on the surface of the transparent thermoplastic resin layer 1 in the direction perpendicular to the grain is a continuous fine uneven shape having a height in the range of 5 to 60 microns. It is provided so as to cover the entire surface of the transparent thermoplastic resin layer 1. The shape parallel to the grain has a linear groove or a curved groove.

The results obtained by scanning the concavo-convex shape of the emboss 6 provided on the surface of the transparent thermoplastic resin layer 1 in the direction perpendicular to the grain and averaging the power spectrum of the concavo-convex shape with respect to eight scanning lines are shown in FIG. 4 shows. As you can see from Figure 4,
The uneven shape in the direction perpendicular to the grain of the emboss 6 has a spatial frequency of 500 to 10000 [1 / m], preferably 125.
It can be seen that in the range of 0 to 5000 [1 / m], the spatial frequency power spectrum has a peak and is composed of a single fine concavo-convex pattern having no periodicity. Spatial frequency is 5
00-10,000 [1 / m], more preferably 1250-
The range of 5000 [1 / m] means that the period of unevenness is in the range of 0.1 to 2.0 mm, more preferably 0.2 to
This indicates that the concentration is in the range of 0.8 mm.

The embossing plate used for producing the decorative material of the present invention can be produced, for example, by the following method. Using a colored original that is filled with colored ink in the surface of the original made of a perforated material such as maple, a mask film with a photographic gradation is created, and the mask film is used to create a carbon touch. Baking, a method in which the surface is transferred to a cylinder made of copper and etched to make it, a silicon resin is applied to the surface of an original made of a perforated material such as maple, and the resin is cured and then peeled off to obtain a surface shape, A method of manufacturing by a so-called electroforming method in which the unevenness is transferred to the cylinder surface, mechanically engraving on the surface of a hard metal roll, or using a hand engraved roll, the surface is made of copper or iron (SS material) It is possible to use a method in which an engraving die is transferred onto the surface of the cylinder to produce the same.

As the transparent thermoplastic resin layer 1, vinyl chloride resin, polyester resin, acrylic resin, polyolefin resin, etc. can be used, but the embossability, surface properties, adhesiveness to other substrates, etc. can be used. Considering this, a sheet made of polyvinyl chloride resin is most suitable. The thickness of the transparent thermoplastic resin layer 1 varies depending on the laminated structure, but is 60 to 2
50 microns is suitable. As the resin that can be used as the laminated material layer 3, besides the above-mentioned resin that can be used as the transparent thermoplastic resin layer 1, paper, non-woven fabric, a metal plate, or the like can be used.

The ink used for forming the grain pattern printing layer 2 may be a commonly used ink made of a resin having good adhesiveness to the surface to be printed. The resin forming the colored resin layer 4 to be filled in the embossed recesses is a resin made of an acrylic resin, a urethane resin, a vinyl chloride resin, a vinyl chloride-vinyl acetate copolymer resin or the like, or an isocyanate as a curing agent for the resin. It is made of a resin to which is added, and a transparent or opaque pigment is added to the above resin for coloring. Here, by coloring the colored resin layer 4 with a transparent pigment having a color similar to the color tone of the grain pattern printing layer 2, the design effect of the grain of the porous material can be further enhanced. The colored resin layer 4 is applied to the entire surface of the transparent thermoplastic resin layer 1 on which the embossment 6 is formed. However, since the transparent thermoplastic resin layer 1 is generally a transparent vinyl chloride resin. In order to prevent the vinyl chloride resin from being dissolved or swollen by the solvent contained in the colored resin layer 4, a glycol ether-based resin such as propylene glycol monomethyl ether or propylene glycol monoethyl ether, which has a small dissolving power for the vinyl chloride resin, is used. It is preferable to add 55 to 85 parts of the solvent before use.

As a method of filling the colored resin layer 4 in the recesses of the emboss 6, the ink for forming the colored resin layer 4 on the surface of the transparent thermoplastic resin layer 1 on which the emboss 6 is formed is roll-coated or knife-coated. After applying it, the excess ink is scraped off with a doctor blade and the colored ink is filled only in the recesses of the emboss 6, or by applying a predetermined amount of colored ink by gravure solid printing, roll coating, etc. Be seen. In the latter method, the concave portion of the emboss 6 is filled with the coloring ink, and the colored resin layer 4 having a constant thickness is formed on the entire surface of the transparent thermoplastic resin layer 1 on which the emboss 6 is formed, so that the entire surface is colored. effective. In the above case, it is not necessary to provide the protective layer 5, and the colored resin layer 4 also serves as the protective layer 5.

The resin forming the protective layer 5 is an acrylic resin, a urethane resin, an epoxy resin, an ultraviolet curable resin or the like, and has a particle diameter of 0.
It is also possible to add calcium carbonate, barium sulfate, silica, etc. of 1 to 10 microns in a predetermined amount to use. In the case where the protective layer 5 is omitted and the colored resin layer 4 also serves as the protective layer 5 as in the decorative material shown in the second embodiment of the present invention, the resin forming the colored resin layer 4 is protected. By using a resin colored by adding a transparent pigment having a color tone similar to that of the grain pattern printing layer 2 to the above resin for forming the layer 5, coloring having excellent surface physical properties such as abrasion resistance is obtained. The resin layer 4 is obtained.

Example 1 A maple grain pattern was printed by gravure printing on the surface of a colored polyvinyl chloride sheet having a thickness of 80 μm using an ink made of a vinyl chloride resin, and the printed surface of the colored polyvinyl chloride sheet was thickened. A transparent polyvinyl chloride sheet having a thickness of 80 μm is subjected to thermal lamination and at the same time, the surface of the transparent polyvinyl chloride sheet is embossed, and a colored ink having the composition shown below is applied to the embossed surface of the laminate by a knife coating method. A colored ink was filled in the embossed recesses, and a protective layer made of a urethane resin was applied to the surface of the embossed recesses to a thickness of 5 μm to prepare a decorative material. The embossing plate used above has a continuous fine unevenness in which the depth of the unevenness is photographically reproduced on the roll surface of the maple wood grain, and the uneven shape in the direction perpendicular to the wood grain. The spatial frequency power spectrum of the spatial frequency is 12
It has a shape having a peak in the range of 50 to 5000 [1 / m]. The obtained decorative material had excellent designability by faithfully reproducing the maple grain. [Colored ink composition] parts by weight urethane resin 20 transparent pigment (same color as wood grain) 4 calcium carbonate 2 propylene glycol monomethyl ether 50 methyl ethyl ketone 16 toluene 8

[0020]

EFFECTS OF THE INVENTION On the surface of a transparent thermoplastic resin layer, a cross-sectional shape perpendicular to the running direction of wood grain is composed of continuous fine irregularities having a depth of 5 to 60 microns and a spatial frequency of 500 to.
More preferably from 10000 [1 / m] to 1250 to 500
An embossing shape having a peak of the spatial frequency power spectrum in the range of 0 [1 / m] is formed, and a transparent colored resin layer is formed in a state of filling the concave portion of the embossing, and the other surface of the transparent thermoplastic resin layer is formed. The wood grain pattern printing layer was used to faithfully reproduce the wood texture and surface luster of the pore materials such as maple, moth, wig, beech, phoenix and boxwood without giving an artificial image. It is possible to obtain a decorative material having an excellent design property, and further, a decorative material having an image of being dyed with real wood.

[Brief description of drawings]

FIG. 1 is a view showing a first embodiment of a decorative material of the present invention,
(A) is a cross-sectional view showing a laminated structure, and (B) is a plan view showing a surface state.

FIG. 2 is a cross-sectional view showing a laminated structure in a second embodiment of the decorative material of the present invention.

FIG. 3 is a view showing an uneven cross-sectional shape of an emboss in a direction perpendicular to a grain in an example of a decorative material of the present invention.

FIG. 4 is a view showing a power spectrum of an embossed uneven shape in a direction perpendicular to a grain in an example of the decorative material of the present invention.

[Explanation of symbols]

 1 Transparent Thermoplastic Resin Layer 2 Wood Grain Print Layer 3 Laminated Material Layer 4 Colored Resin Layer 5 Protective Layer 6 Embossing

Claims (3)

[Claims] 1. A transparent thermoplastic resin layer is provided on one surface thereof with an embossing formed of fine irregularities of linear grooves or linear grooves running in the running direction of wood grain, and is filled with the recesses of the embossing. A decorative material comprising a colored resin layer formed thereon, and having a constitution in which a grain pattern printing layer is provided on the other surface of the transparent thermoplastic resin layer. 2. A cross-sectional shape perpendicular to the running direction of the embossing has a depth of 5 to 60 microns and a spatial frequency of 500.
The cosmetic material according to claim 1, which has a peak of the spatial frequency power spectrum in the range of 10,000 to 1 / m. 3. The decorative material according to claim 1, wherein the color tone of the colored resin layer is a transparent color similar to that of the grain pattern printing layer.