JP2795022B2 - Wood pattern decorative sheet - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention has a wood pattern, a wall material,
The present invention relates to a wood-grain decorative sheet used as a building material such as a floor material, a surface decoration material such as furniture and furniture and the like.

[0002]

2. Description of the Related Art In order to express the high-quality wood texture such as the depth of wood and the shining surface of real wood such as muk, veneer, etc. by printing etc., so as to synchronize with the wood pattern under the printed pattern, Fine embossing is performed.

For example, as shown in FIG. 6, a resin film layer 21 in which a fine emboss 22 such as a hairline emboss or a conduit emboss is applied to the surface of a resin film such as polyvinyl chloride, or an optical coloring effect such as a pearl tone is produced. Resin film 2 colored metallically with a colorant
1 (not shown), an adhesive layer 23 (an ordinary adhesive or an adhesive layer made of an ultraviolet curable resin) on the surface of the resin film 21, a printed layer 24 having a woodgrain pattern, Or a semi-transparent) surface resin film layer 25 is laminated in this order to provide a high-quality wood texture to the wood-grain decorative sheet.

[0004]

In the woodgrain decorative sheet made of the laminated structure, since the shape of the internal embossment is a hairline, a conduit or the like, the reflectivity hardly changes depending on the angle at which the embossing itself is viewed, and the viewing angle is not changed. It was difficult to express the woody texture of the actual wood, which changed subtly due to this.

[0005] The present invention is based on printing and embossing.
By applying a special fine embossing to the lower layer of the printed pattern so as to match the wood pattern, the wood grain pattern decorative sheet has the depth and surface of wood that real wood such as muk, veneer, etc. does not exist conventionally The purpose of the present invention is to provide a high-quality wooden texture such as shine.

The present invention is directed to a metallic resin layer 1 having a stripe-shaped pattern 2 on the surface in which a large number of linear patterns A obtained by a group of parallel adjacent short lines 2a are embossed.
And a light-transmitting intermediate resin layer 3 provided on the surface of the metallic resin layer 1 and a light-transmitting surface resin layer 5 are laminated in this order, and the light-transmitting intermediate resin layer 3 and the light-transmitting surface resin layer 5, a woodgrain pattern 4a having a straight-grained pattern arranged substantially in synchronization with the direction of the striped pattern 2 by the linear pattern A.
It is a woodgrain decorative sheet characterized by comprising a printed layer 4 provided with.

The present invention will be described in detail with reference to the side sectional view showing one embodiment of the wood pattern decorative sheet of the present invention shown in FIG.
The metallic resin layer 1 is made of, for example, a thermoplastic resin such as a polyvinyl chloride resin, an acrylic resin, or a saturated polyester resin, or a thermosetting resin such as a urethane resin or an unsaturated polyester resin, a pearl color, a silver color, or a gold color. Metallic pigments such as, or those made into a film by mixing a colorant, polyvinyl chloride resin film surface, pearl color or silver color, metallic color such as gold color, colored with ink, metal The metallic resin layer 1 is formed into a metallic pattern by vapor deposition, and a stripe pattern 2 is formed on the surface of the metallic resin layer 1 by embossing.

On the surface of the metallic resin layer 1 on the side of the stripe pattern 2, an intermediate resin layer 3 made of a translucent resin, for example, a thermoplastic resin, a thermosetting resin, or a UV-curable resin is applied. In the case where a UV-curable resin is formed and used, it is irradiated with UV rays after application, crosslinked and polymerized, and dried.

On the upper side of the intermediate resin layer 3, a thermoplastic resin,
A surface resin layer 5 such as a thermosetting resin or a UV-curable resin is laminated.

A printed layer 4 having a wood grain pattern 4a is laminated between the intermediate resin layer 3 and the surface resin layer 5. In the present invention, the woodgrain pattern 4a to be printed may be in any printing form, and may be a woodgrain pattern using a known woodgrain pattern design, a known color tone, contrast, density, density gradation, or the like. A pattern can be used, and it is of course possible to print using a known printing method and printing ink. The printing layer 4 is formed by printing a predetermined grain pattern 4a on the surface of the intermediate resin layer 3 by a printing method such as a gravure printing method, and then laminating the surface resin layer 5 or After a predetermined grain pattern 4a is printed on the back surface by a printing method such as a gravure printing method in advance, the surface resin layer 5 is laminated on the surface of the intermediate resin layer 3.

FIG. 2 (a) is a side sectional view showing another embodiment of the decorative woodgrain pattern sheet of the present invention. The light-transmitting auxiliary resin layer 3a is laminated by applying a resin such as vinyl chloride, or by heating and pressing dry laminating a light-transmitting resin film such as polyvinyl chloride, or by wet-laminating with coating an adhesive. Applying a resin such as translucent polyvinyl chloride through the auxiliary resin layer 3a, or applying heat-press dry lamination or a wet lamination of a resin film such as translucent polyvinyl chloride with an adhesive. The light-transmitting surface resin layer 4 is laminated.

In the present invention, the auxiliary resin layer 3a
There is a role as a mere adhesive for bonding the intermediate resin layer 3 and the surface resin layer 5 made of the ultraviolet polymerization-curable resin, and a distance between the layers between the stripe pattern 2 and the printed layer 4 by embossing. When the spacer has one or both of the roles of the spacer for holding the value (for expressing a three-dimensional effect), and does not require a relatively large separation distance, Resin layer 3a
Has only a role as an adhesive, and therefore, in the present invention, for example, the auxiliary resin layer 3a may be omitted.

When the auxiliary resin layer 3a is laminated on the surface of the intermediate resin layer 3 as shown in FIG.
Is laminated between the auxiliary resin layer 3a and the surface resin layer 5. FIG. 2B shows another embodiment in which the auxiliary resin layer 3a is laminated on the surface of the intermediate resin layer 3, and the printed layer 4 is laminated between the intermediate resin layer 3 and the auxiliary resin layer 3a. It was done.

Next, the stripe pattern 2 applied to the wood grain decorative sheet of the present invention will be described in detail. FIG.
FIG. 4 is a plan view showing an example of a striped pattern 2, wherein a group of short lines 2 a (a relatively short straight line, a collection of short lines closely adjacent to each other in a short curve) which are adjacent to each other in parallel are formed into one unit straight line pattern A; As shown in the drawing, a large number of the linear patterns A are juxtaposed in the vertical direction to form a stripe pattern 2 as shown in the drawing.

The striped pattern 2 may be formed by press working, for example, using a predetermined embossing press die on which a female mold of the striped pattern 2 is formed, or a predetermined embossed shape. It may be formed by an electroforming method using a mold.
May be formed by an injection molding method using a female mold for injection molding in which is formed, or may be formed by a resin casting molding method.

The short line group 2a is formed on the surface of the resin film by pressing embossing, electroforming, injection molding, casting or the like so as to have fine irregularities, and is a unit constituting the short line group 2a. The short line indicates, for example, from a valley to a valley in one cycle of the embossed surface irregularities.

In the present invention, the pitch interval m between the short lines constituting the short line group 2a (ie, the width of each short line) is at least larger than the width s of the linear pattern A (ie, the arrangement pitch between the linear patterns A). It is desirable to set a small value, but it is not limited to this.

The pitch m of the short line group 2a in one straight line pattern A may be set equal to the pitch m.
Alternatively, it may be set to a pitch interval m that changes regularly according to a certain rule, or may be set to a random pitch interval m that changes irregularly.

The pitch interval m of each short line group 2a of each straight line pattern A may be the same, or may be set to change regularly according to a certain rule, or may change irregularly. May be set.

Further, in the present invention, the arrangement angle θ of each short line of the short line group 2a can be appropriately set with respect to the longitudinal direction of the linear pattern A, and may be the same angle over each linear pattern A. Such a regular angle change may be applied, or a random angle change may be applied. The length of one short line of the short line group 2a can be appropriately set so as to be determined by the angle θ of the short line and the width s of the linear pattern A.

In the present invention, the width s of each of the linear patterns A may be equal or unequal. For example, in the case of unequal width, the linear patterns A are regularly arranged in a certain order. May be arranged irregularly (randomly).

As an example of the striped pattern 2 in the present invention, as shown in FIG.
Are set to have the same width, and the pitch interval m of each short line group 2a constituting each straight line pattern A is also set to the same value. FIG. 3 shows an example of the arrangement angle θ of the short line group 2a.

As shown in FIG. 3, a linear pattern Aa obtained by embossing the short line group 2a by a predetermined pitch interval m and an arrangement angle θ, and _a pitch interval m and an arrangement angle θ different from this. Tansengun a linear pattern a _b obtained by embossing form 2a, a striped pattern 2 which is constructed by arranging alternately, linear pattern a
width s of _a and A _b are those formed by equal width.

FIG. 4 shows another example of the stripe pattern 2 according to the present invention.
As the line pattern A on the left side of the drawing shifts from the linear pattern A on the right side, the arrangement angle θ (for example, 0 ° to 18) is gradually increased.
The angle of 0 ° or an angle excluding 0 ° or 90 ° or 180 °) is set to be large or small, and the width s of each straight line pattern A is formed to have the same width, and the straight line pattern A _a
A stripe pattern 2 is formed by repetition of _Ae .

In FIG. 4, the short line group 2 from the leftmost straight line pattern A to the nth straight line pattern A in the right direction.
a is changed in a direction gradually increasing in the range of θ ₁ to θ ₂ , and then the (n + 1) th to p th (n =
p or n ≠ p), the arrangement angle of the short line group 2a is
θ _{1 to} θ ₂ or a direction gradually increasing in a range of an angle different from that, and then the short line group 2a from the (p + 1) th to the qth (n = p = q, n ≠ p ≠ q, etc.) The arrangement angle θ is changed in the direction of gradually increasing in the range of θ ₁ to θ ₂ or an angle different therefrom, and thus the arrangement angle θ of the short line group 2a is changed one after another to form the stripe pattern 2. To form.

FIG. 5 is a plan view for explaining another example of the stripe pattern 2. The widths s of the respective linear patterns A are unequal widths (for example, the width s that changes according to a certain regularity). Alternatively, the stripe pattern 2 is formed by arranging the linear patterns A at a randomly set width s).

[0027]

EXAMPLES Specific examples are shown below. Example 1 First, an oak pattern was printed by a gravure printing method on a transparent polyvinyl chloride resin sheet having a thickness of 0.1 mm. Subsequently, on the surface of a 0.1 mm-thick gold-based metallic-colored polyvinyl chloride resin sheet (formed of a polyvinyl chloride resin mixed with a gold-colored pigment in the form of a sheet), the number of lines was 150 lines / mm (short line pitch interval m = 6 μm to 7 μm) and a number of lines of 200 lines / mm
A short line group (short line pitch interval m = 5 μm) is set to a linear pattern width s = 1 mm, and a striped pattern embossing press die in which a striped pattern is engraved is heated and pressed to form a striped surface. A metallic embossed metallic polyvinyl chloride resin sheet was formed. Subsequently, the oak pattern printed side of the polyvinyl chloride resin sheet on which the oak pattern is printed and the embossed side of the metallic resin sheet on which the striped pattern is embossed are overlapped, and the embossed recesses of the striped pattern are buried. Coating amount (e.g., emboss depth (for example, 10 μm to 35 μm)
m), for example, about 15 μm to 30 μm film thickness) urethane adhesive (AD-AD manufactured by Toyo Morton)
980) to obtain a wood-grain pattern decorative sheet of the present invention.

Example 2 First, an oak pattern was printed on a transparent polyvinyl chloride resin sheet having a thickness of 0.1 mm by a gravure printing method. Subsequently, a 0.1-mm-thick gold-based metallic-colored polyvinyl chloride resin sheet (formed of a sheet of polyvinyl chloride resin mixed with a gold-colored pigment) is provided with a line number of 150 lines / mm (short line pitch interval m = 6 μm to 7 μm), and 2 lines
A short line group of 00 lines / mm (short line pitch interval m = 5 μm) was set to a linear pattern width s = 1 mm, and a striped pattern embossing press die in which a striped pattern was engraved was heated and pressed. A metallic polyvinyl chloride resin sheet having a stripe pattern embossed on the surface was formed. Next, the embossed surface of the striped pattern of the metallic resin sheet is wiped with a paste-like translucent (transparent) polyvinyl chloride resin to fill the embossed recesses in advance. Subsequently, the oak pattern printed side of the polyvinyl chloride resin sheet on which the oak pattern was printed and the wiped embossed side of the metallic resin sheet having the striped pattern embossed were overlapped, for example, 10 μm.
A wood-grain decorative sheet of the present invention was obtained by laminating through an intermediate resin layer with a urethane-based adhesive (AD-980 manufactured by Toyo Morton Co., Ltd.) having a coating amount of about m to 30 μm.

Example 3 First, an oak pattern was printed on a transparent polyvinyl chloride resin sheet having a thickness of 0.1 mm by a gravure printing method. Subsequently, a 0.1-mm-thick gold-based metallic-colored polyvinyl chloride resin sheet (formed of a sheet of polyvinyl chloride resin mixed with a gold-colored pigment) is provided with a line number of 150 lines / mm (short line pitch interval m = 6 μm to 7 μm), and 2 lines
A short line group of 00 lines / mm (short line pitch interval m = 5 μm) is set to a linear pattern width s = 1 mm, and a striped pattern embossing press die engraved with a striped pattern is heated and pressed. A metallic polyvinyl chloride resin sheet having a stripe pattern embossed on the surface was formed. Subsequently, the oak pattern printed side of the polyvinyl chloride resin sheet on which the oak pattern is printed and the embossed side of the metallic resin sheet on which the striped pattern is embossed are overlapped, and the embossed recesses of the striped pattern are buried. Coating amount (e.g., emboss depth (for example, 10 μm
To 35 μm), for example, 15 μm to 3 μm.
After bonding through an intermediate resin layer of a urethane-based ultraviolet-curable resin (UV resin) (UL-3160 manufactured by Mitsubishi Rayon Co., Ltd.) having a thickness of about 0 μm, the resin is polymerized and cured by irradiating ultraviolet rays, A wood pattern decorative sheet was obtained.

Example 4 First, an oak pattern was printed on a transparent polyvinyl chloride resin sheet having a thickness of 0.1 mm by a gravure printing method. Subsequently, a 0.1-mm-thick gold-based metallic-colored polyvinyl chloride resin sheet (formed of a sheet of polyvinyl chloride resin mixed with a gold-colored pigment) is provided with a line number of 150 lines / mm (short line pitch interval m = 6 μm to 7 μm), and 2 lines
A short line group of 00 lines / mm (short line pitch interval m = 5 μm) is set to a linear pattern width s = 1 mm, and a striped pattern embossing press die engraved with a striped pattern is heated and pressed. A metallic polyvinyl chloride resin sheet having a stripe pattern embossed on the surface was formed. Subsequently, on the embossed side of the metallic resin sheet in which the striped pattern is formed by embossing, the coating amount (the embossing depth (for example, 15 μm to 30 μm, depending on the embossing depth (for example, 10 μm to 35 μm)) is small enough to bury the embossed concave portion of the striped pattern. An intermediate resin layer made of a urethane-based ultraviolet-curable resin (UV resin) (UL-3160 manufactured by Mitsubishi Rayon Co., Ltd.) having a thickness of about the same thickness is applied. Subsequently, a translucent (transparent) polyvinyl chloride resin sheet (auxiliary resin layer) of about 0.1 mm is superimposed on the surface of the intermediate resin layer, and the intermediate resin layer is polymerized and cured by irradiating ultraviolet rays. The UV-curable intermediate resin layer and the auxiliary resin layer of the polyvinyl chloride resin sheet are bonded together. Subsequently, the prepared polyvinyl chloride resin sheet (surface resin layer) on which the oak pattern is printed and the polyvinyl resin sheet of the auxiliary resin layer are bonded with a urethane-based adhesive (AD manufactured by Toyo Morton Co., Ltd.).
-980) to obtain a wood-grain pattern decorative sheet of the present invention.

Example 5 First, an oak pattern was printed on a transparent polyvinyl chloride resin sheet having a thickness of 0.1 mm by a gravure printing method. Subsequently, a 0.1-mm-thick gold-based metallic-colored polyvinyl chloride resin sheet (formed of a sheet of polyvinyl chloride resin mixed with a gold-colored pigment) is provided with a line number of 150 lines / mm (short line pitch interval m = 6 μm to 7 μm), and 2 lines
A short line group of 00 lines / mm (short line pitch interval m = 5 μm) is set to a linear pattern width s = 1 mm, and a striped pattern embossing press die engraved with a striped pattern is heated and pressed. A metallic polyvinyl chloride resin sheet having a stripe pattern embossed on the surface was formed. Next, the embossed surface of the metallic resin sheet having a striped pattern embossed thereon is coated with a urethane-based ultraviolet-curable resin (UV resin) (U, manufactured by Mitsubishi Rayon Co., Ltd.).
L-3160) is used to bury the embossed concave portions of the stripe pattern by wiping. Subsequently, on the wiping surface, a urethane-based ultraviolet-curable resin (UV resin) having a thickness of about 10 μm to 30 μm (manufactured by Mitsubishi Rayon Co., Ltd.)
UL-3160) is applied. Subsequently, a translucent (transparent) polyvinyl chloride resin sheet (auxiliary resin layer) of about 0.1 mm is superimposed on the surface of the intermediate resin layer, and the intermediate resin layer is polymerized and cured by irradiating ultraviolet rays. The UV-curable intermediate resin layer and the auxiliary resin layer of the polyvinyl chloride resin sheet are bonded together. Subsequently, the prepared polyvinyl chloride resin sheet (surface resin layer) on which the oak pattern is printed and the polyvinyl resin sheet of the auxiliary resin layer are bonded with a urethane-based adhesive (AD manufactured by Toyo Morton Co., Ltd.).
-980) to obtain a wood-grain pattern decorative sheet of the present invention.

[0032]

Since the woodgrain pattern decorative sheet of the present invention has an embossed portion formed by the stripe pattern 2 in which a large number of linear patterns A composed of the short line groups 2a are arranged as internal embosses, light is reflected depending on the angle at which the embossed portion itself is viewed. By changing the rate, the appearance changes.

Therefore, as compared with the conventional wood grain pattern decorative sheet provided with the hairline embossing and the conduit embossing inside embossing, the wood grain pattern decorative sheet of the present invention has the viewing direction, light hit condition, light intensity, etc. It has the effect of changing the luster, depth, and shine of the woodgrain pattern more subtly, so that a woodgrain pattern decorative sheet similar to the complex and subtle woody texture of real wood can be obtained. It is.

[0034]

According to the wood grain decorative sheet of the present invention, the reflectivity hardly changes depending on the angle at which the emboss itself is viewed, and slightly changes depending on the angle at which the emboss itself is viewed, unlike conventional internal embossing such as hairline embossing and conduit embossing. What was difficult to express the delicate wood texture of actual wood, wood grain pattern printing and special embossing,
By applying a special embossing that adapts to the wood pattern and makes subtle optical changes in the lower layer of the wood pattern, the depth of the wood, the surface shine, etc., which real wood such as muku, veneer, etc. have never existed Has the effect of giving a high-quality woody feel.

[Brief description of the drawings]

FIG. 1 is a side sectional view showing one embodiment of a wood grain decorative sheet of the present invention.

FIG. 2 (a) is a side sectional view showing another embodiment of the woodgrain pattern decorative sheet of the present invention. (A) It is a sectional side view which shows the other example of the woodgrain pattern decorative sheet of this invention.

FIG. 3 is a plan view illustrating an example of an embossed stripe pattern according to the present invention.

FIG. 4 is a plan view illustrating another example of a striped pattern formed by embossing in the present invention.

FIG. 5 is a plan view illustrating another example of a striped pattern formed by embossing in the present invention.

FIG. 6 is a side sectional view of a conventional woodgrain decorative sheet.

[Explanation of symbols]

1: Metallic resin layer 2: Stripe pattern 2a
... Short line group 3 ... Intermediate resin layer 3a ... Auxiliary resin layer 4 ... Printing layer 4a
... grain pattern 5 ... surface resin layer 21 ... resin film layer 22 ... microembossed 23 ... adhesive layer 24 ... printing layer 25 ... surface film layer A ... linear pattern A _a to A _e ... linear pattern m ... short line pitch s ... Linear pattern width (linear pattern pitch interval) θ: Arrangement angle

────────────────────────────────────────────────── ─── Continued on the front page (51) Int.Cl. ⁶ Identification symbol FI B32B 27/30 101 B32B 27/30 101 B44C 3/02 B44C 3/02 A (56) References JP-A-4-64443 (JP) , A) Japanese Utility Model 3-116928 (JP, U) (58) Fields investigated (Int. Cl. ⁶ , DB name) B32B 33/00 B05D 5/06 101 B32B 3/30 B32B 27/00 B32B 27 / 20 B32B 27/30 101 B44C 3/02

Claims (5)

(57) [Claims] 1. A metallic resin layer 1 having on its surface a striped pattern 2 in which a large number of linear patterns A obtained by parallel adjacent short line groups 2a are embossed and a transparent pattern formed on the surface of the metallic resin layer 1. The light-transmitting intermediate resin layer 3 and the light-transmitting surface resin layer 5 are laminated in this order, and a striped pattern formed by the linear pattern A is provided between the light-transmitting intermediate resin layer 3 and the light-transmitting surface resin layer 5. A woodgrain decorative sheet comprising a printed layer 4 provided with a woodgrain pattern 4a having a straight-grain pattern arranged substantially in synchronization with the direction of the pattern 2. 2. The metallic resin layer 1 and the surface resin layer 5.
The woodgrain decorative sheet according to claim 1, wherein is a polyvinyl chloride resin. 3. The wood-grain decorative sheet according to claim 1, wherein the light-transmitting intermediate resin layer 3 is a UV-curable resin. 4. The woodgrain pattern decorative sheet according to claim 1, further comprising a light-transmitting auxiliary resin layer 3a on the surface of the light-transmitting intermediate resin layer 3. 5. The woodgrain decorative sheet according to claim 4, wherein the light-transmitting auxiliary resin layer 3a is a polyvinyl chloride resin.