JP4184678B2 - Steel plate with joint pattern - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a steel sheet with a joint pattern and a method for producing the same. More specifically, the present invention relates to a steel sheet having a joint pattern that is visually recognized as a joint pattern, which is deep and has a feeling of unevenness by a printing method, on the upper surface of a resin film-coated steel sheet or a colored paint-coated steel sheet, and a method for producing the same. In the present invention, the joint pattern refers to a pattern in which joints in a gap provided without contacting a joint portion of a building member such as a tile, a metal plate, a wooden board, and a stone are formed by printed colors. Also, the difference in color means that one or more of brightness, saturation, and hue are different.
[0002]
[Prior art]
Wall materials and ceiling materials such as interior materials, exterior materials, bathroom units, and washroom units of houses are prepared by decorative steel plates because they have the advantage of being easier to manufacture and install than conventional tiles. . Since the decorative steel sheet has no joints, it has a flat and monotonous appearance. As a method of adding a joint pattern to the decorative steel plate, a method of performing uneven joint processing on the steel plate itself (see JP 2001-132203 A), forming a joint pattern by partially removing the resin film covering the steel plate And the like (see Japanese Patent Laid-Open No. 9-216306) have been proposed.
[0003]
However, the technique described in Japanese Patent Application Laid-Open No. 2001-132203 forms an uneven joint pattern on the surface of the resin film-coated steel sheet by a press working method using a mold. In order to form different joint patterns (intervals, widths), expensive molds are required for each joint pattern, and the joint pattern cannot be easily changed. It is difficult to perform the bending process, and the ordinary steel plate bending process has the disadvantage that the joint portion formed in a concave shape is crushed. Furthermore, when the convex part is formed in the back side of a steel plate, since it cannot be stuck and stuck on wall surfaces, such as a flat gypsum board, there exists a fault that it is difficult to construct.
[0004]
Furthermore, the technique described in Japanese Patent Application Laid-Open No. 9-216306 is a technique in which a resin film with a joint pattern is further laminated on a resin film-coated steel sheet, and the surface of the resin film is removed in a strip shape by a predetermined depth to give a joint pattern. Regarding technology. The part from which the resin film is removed may become thin or the steel plate surface may be exposed, and the durability of the steel plate with joint pattern of the product is inferior, and there are restrictions on the equipment for removing the resin film. The complex joint pattern is difficult to form.
[0005]
[Problems to be solved by the invention]
In view of such circumstances, the present inventors have conducted intensive studies to provide jointed decorative steel sheets used for wall materials, ceiling materials, etc. for interior materials, exterior materials, bathroom units, toilet units, etc. The present invention has been achieved. That is, the object of the present invention is as follows.
1. To provide a steel plate with a joint pattern that is easy to manufacture and does not have a risk of collapsing the joint pattern during bending.
2. To provide a steel plate with joint pattern in which a joint pattern having a sense of depth and depth can be visually recognized.
3. To provide steel sheets with various joint patterns that combine multiple patterns such as joint width and shape similar to joint patterns using tiles and stones.
4). To provide a method for efficiently producing a steel sheet with a joint pattern at a low cost.
[0006]
[Means for Solving the Problems]
  In order to solve the above-mentioned problems, in the first invention, the resin film surface of the resin film-coated steel plate coated on one side of the steel plate with a colored resin film or the paint surface of the paint-coated steel plate coated with a colored paint is colored. The paint (D) with a color different from the color of the resin film (B) or the colored paint (C) is printed and applied,A joint pattern formed in a convex shape whose center in the width direction is depressed or raised along the extending direction such as a curve, a straight line, etc.The gist of the steel plate with joint pattern (A1) is characterized by being visually recognized as a convex joint pattern (a1).
[0007]
Furthermore, in the second invention, the colored resin film (B) or the resin film surface of the resin film-coated steel plate coated on one side of the steel plate with a colored resin film, or the paint surface of the paint-coated steel plate coated with a colored paint Forming a paint layer (E) with a color different from the color of the color paint (C);The colored resin film (B) surface or the colored paint (C) surface is exposed by the concave shape provided in the paint layer (E), and the joint pattern formed by the exposed concave shape isThe gist of the steel sheet with joint pattern (A2) is characterized by being visually recognized as a concave joint pattern (a2).
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the present invention will be described in detail.
The steel plate as the base material of the joint-patterned steel plate (A) according to the present invention is not particularly limited in its type, and the corrosion resistance of the steel plate itself is improved, and the steel plate surface and the resin film (B) are colored. For the purpose of improving the adhesion to the paint (C), it is preferable that the surface of the steel sheet is subjected to surface treatment. The surface to be surface-treated is the surface to be coated with the resin film (B) and the surface to which the colored paint (C) is applied, but the remaining surface may be subjected to the same surface treatment. Examples of the surface treatment include plating, chemical conversion treatment, and electrolytic etching treatment. Of these, tin plating, chrome plating, nickel plating and the like are preferable.
[0010]
There are no particular restrictions on the thickness, width, length, etc. of the steel sheet, but considering the ease of handling, the thickness is about 0.2-5 mm, the width is about 500-2000 mm, and it is long and roll-shaped. Those wound around are preferred. The thickness of the rolled steel sheet can be selected within the above range depending on the use of the steel sheet with joint pattern. The length of the long steel plate can be adjusted to an appropriate dimension by cutting, punching, or the like according to the type, size, shape, etc. of the product to be manufactured.
[0011]
One side of the steel plate to be the base is coated with a colored resin film (B) or a colored paint (C) is applied. These coverings function to improve the corrosion resistance of the surface of the steel sheet, and at the same time, make the joint pattern clear and allow a deep unevenness to be visually recognized. Examples of the resin for the colored resin film (B) include vinyl chloride resins such as polyvinyl chloride and vinyl chloride-vinyl acetate copolymers, polyolefin resins such as polyethylene and polypropylene, acrylic resins, polyethylene terephthalate, and polybutylene terephthalate. And polyester resins such as polyamide 6 and polyamide 66. The type of resin is not limited to those exemplified. The colored resin film (B) may be a single layer or a laminate of different types of resin films.
[0012]
The colorant that colors the resin is not particularly limited as long as it colors the resin, and among them, a colorant that does not easily fade even when exposed to light or heat is suitable. The thickness of the colored resin film (B) is preferably selected in the range of 5 to 500 μm. If the thickness is less than 5 μm, it is difficult to handle as a film and inferior in corrosion resistance, and if the thickness exceeds 500 μm, it is inferior in formability when bending a resin film-coated steel sheet, which is economically disadvantageous. is there. The particularly preferable thickness of the resin film is 10 to 400 μm. The resin film can be produced by a conventionally known production method, for example, an extrusion molding method using an extruder equipped with a T die or an inflation die, a calendar molding method, or the like.
[0013]
To prepare a resin film-coated steel plate from the steel plate and the colored resin film (B), (1) a method of laminating a separately prepared colored resin film after applying and baking an adhesive to the steel plate, 2) A method of laminating a separately prepared colored resin film on a steel sheet in a molten state, and (3) a method of laminating a colored resin film extruded from an extruder die on a steel plate while in a molten state. The surface of the colored resin film (B) may be mirror-like, may be printed with a design pattern, or may be provided with an embossed pattern having a design property.
[0014]
The colored paint (C) applied to one side of the steel sheet as the base material is not particularly limited as long as it imparts corrosion resistance to the steel sheet and does not peel off during bending. Among these, an emulsion-type paint in which a synthetic resin and a pigment are dispersed in an aqueous medium, and a solvent-type paint in which a synthetic resin and a pigment are dissolved or dispersed in an organic solvent are preferable. Examples of emulsion-type paint resins include polyvinyl acetate and acrylic resins, and curable resins such as solvent-type paint phenol resins, urea resins, melamine resins, phthalic acid resins, aminoalkyd resins, silicon resins, and polyurethane resins. In addition, vinyl chloride resin, acrylic resin, polyester resin and the like can be mentioned.
[0015]
The pigment to be dispersed in the paint is not particularly limited as long as it can color the paint, and among them, a pigment that does not easily fade even when exposed to light or heat is preferable. In order to prepare a paint-coated steel sheet from the steel sheet as the base material and the colored paint (C), (1) a method of applying an emulsion-type paint to the steel sheet and scattering an aqueous medium, (2) a solvent type to the steel sheet Examples of the method include applying a paint, and drying, baking, and curing the solvent by heating, electron beam irradiation, ultraviolet irradiation, and the like, if necessary. The method of applying the colored paint (C) for the steel sheet is not particularly limited, and may be a conventionally known application method such as a dipping method, a kiss roll method, a spray method, a brush coating method, a printing method, or the like. it can. The thickness of the colored paint (C) is preferably selected in the range of 2 to 500 μm.
[0016]
【Example】
EXAMPLES Hereinafter, although an Example demonstrates this invention further in detail, this invention is not limited to the following description examples, unless the meaning is exceeded.The steel sheet with joint pattern (A1) according to the first aspect of the present invention has a colored resin film (B) on either the coated surface coated with the colored resin film (B) or the coated surface coated with the colored paint (C). ) Or a paint (D) having a color different from the color of the colored paint (C). In this way, the steel sheet itself of the base material is caused by the synergistic effect of the color of the paint (D) and the color of the colored resin film (B) or the color paint (C), the shadow generated when the light beam is reflected, etc. A deep joint pattern in which a recess is formed is clearly visible.
[0017]
The paint (D) may be in the same category as that exemplified for the colored paint (C) as long as the condition that the colors are different, and the synthetic resin and the pigment are dispersed in an aqueous medium. And emulsion type paints, solvent type paints in which a synthetic resin and a pigment are dissolved or dispersed in an organic solvent. The pattern forming method using the paint (D) is based on the printing method. Examples of printing methods include gravure printing, offset printing, screen printing, letterpress printing, and intaglio printing.
[0018]
After printing a pattern with paint (D) on either the coated surface coated with colored resin film (B) or the coated surface coated with colored paint (C), in the case of water-based emulsion type paint, use an aqueous medium. For example, in the case of a solvent-type coating, a method of drying, baking, and curing the solvent by heating, electron beam irradiation, ultraviolet irradiation, or the like may be used. In addition to single-color (single-layer) printing, printing may be performed multiple times (multi-layer) printing with paints having different colors. When performing overprinting a plurality of times, it is possible to perform multicolor printing in which different patterns, different colors, and different types of paints are combined by changing the printing roll and the printing original plate. By performing overprinting a plurality of times, the joint pattern can be made clear and a deep unevenness can be visually recognized.
[0019]
Patterns printed with paint (D) can be combined with straight lines, curves, etc., for example, grid pattern, stone pattern, stone wall pattern, wood grain pattern, cloud, wave, flower, mountain, bamboo leaf, leaf of tree, etc. Natural patterns, geometric patterns such as circles, rectangles, triangles, polygons and lattices, and abstract patterns obtained by abstracting them. These patterns may be one type or a combination of a plurality of patterns. The color of the pattern may be a single color such as beige color, milky white color, mountain blow color, or a combination of different colors. The pattern can be freely changed by changing the printing roll and the printing original plate, and a plurality of different patterns can be easily printed. By doing in this way, a joint pattern can be made clear and a deep uneven | corrugated feeling can be visually recognized.
[0020]
In order to form these patterns, (1) points, straight lines, curves (hereinafter collectively referred to as straight lines / curves) are formed in a planar shape, and (2) uneven lines / curves are formed. (3) Form a straight line / curve in a concavo-convex embossed pattern, (4) Combine a flat point, straight line / curve, etc. with a straight line / curve formed in a concavo-convex shape , (5) Combining uneven straight lines / curves with uneven embossed lines / curves, etc., (6) Straight lines / curves formed flat, etc. Further, it is possible to use a method such as a combination of a straight line / curve formed in an uneven embossed pattern.
[0021]
There are no particular restrictions on the size of the line or curve of the pattern printed with the paint (D), but in order to make the joint pattern visible and to recognize the depth and unevenness, use a line or curve. Combine to form shadesButit can. To create a joint pattern that can recognize depth and unevenness, a plurality of straight lines and curved lines can be combined to form a shade.
[0022]
For example, (1) A method of forming a straight line / curve or the like as a convex shape (s1) having a width of, for example, 1 to 5 mm and having a central portion in the width direction recessed in a direction along which the straight line / curve extends. 4), (2) A convex shape with a width of 1 to 5 mm, for example, and a central portion in the width direction recessed into a concave shape along the direction in which the straight line / curve extends, etc. (t1) The width from one shoulder side of this convex shape (t1) to the depressed central part side is printed in dark color, and the remaining part is not printed or printed with transparent or light-colored paint (D) Method (see Fig. 5 below), (3) On the colored resin film (B) and colored paint (C), straight lines and curves are printed with dark paint, and at least one of the print layers of this dark paint In this method, the convex shape (v1) is printed with a paint (D) with a lower concealment property so that it overlaps the area. , See FIG. 6) also may be flat (hereinafter, see FIG. 7). (4) A straight line / curve is formed as a convex shape (u1) with a flat upper surface, and the whole or part of the flat upper surface of this convex shape (u1) is along the direction in which the convex shape (u1) extends. And a method of printing straight lines, curves, etc. with a dark paint (see FIG. 8, described later).
[0023]
In the pattern printed by the paint (D), the maximum height of the convex shape (s1), convex shape (t1), convex shape (u1), convex shape (v1), etc. can be selected in the range of 5 to 500 μm. it can. The dark paint used in the above methods (2) and (4) means a dark hue including black, and the transparent or light paint (D) may be colored. A straight line, a curved line, etc. are not one but can be combined. In this case, it is also possible to provide a difference in the height of the convex shape (s1), convex shape (t1), convex shape (u1), convex shape (v1), etc., the darkness (darkness) of the dark color paint, etc. . In this way, by forming a shade printing pattern with straight lines / curves, etc., there is a shadow when the light beam is reflected, and there is a deep and uneven feeling that a recess is formed in the resin-coated steel sheet itself that is the base material It can be set as the joint pattern visually recognized.
[0024]
The steel sheet (A2) with a joint pattern according to the second invention of the present invention has a colored resin film (B) on either the coated surface coated with the colored resin film (B) or the coated surface coated with the colored paint (C). ) Or a paint layer (E) printed with a paint that is different from the color of the paint (C), a color of the same color, or transparent (may be colored), and the paint is applied A joint pattern (a2) is visually recognized by a concave portion that is not formed. In this way, as in the first invention, due to the synergistic effect of the paint layer (E) and the color of the colored resin film (B) or the colored paint (C), the shadow generated when the light beam is reflected, etc. A joint pattern will be visually recognized so that the deep concave-shaped part may be formed in the resin-coated steel plate of a base material.
[0025]
When the colored resin film (B) or the colored paint (C) is monochromatic, the paint layer (E) is preferably composed of a laminate including at least a joint pattern print layer. The laminate constituting the paint layer (E) is only a transparent printing layer (E2), a two-layer laminate comprising a joint pattern printing paint layer (E1) and a transparent printing layer (E2), a joint pattern printing paint layer ( Examples thereof include a three-layer laminate composed of E1), a transparent printing layer (E2), and a paint layer (E3) colored in a single color.
[0026]
For example, the joint pattern has a depth of 5 μm to 3 mm provided in the paint layer (E), and a concave portion (e) having a width of 10 mm or less, whereby the colored resin film (B) surface of the base steel plate or the colored paint (C ) The surface is exposed, and a monochromatic or dark paint is applied to the one formed by the exposed concave portion (e1) (see FIG. 10 described later) or the concave portion (e) provided in the coating layer (E). What is formed (e2) (see FIG. 11, FIG. 12, FIG. 13) and the like. In this case, the surface of the paint layer (E) may have any of a flat shape, a concavo-convex shape, and a crease shape (see FIG. 14 described later). To provide the recess (e) in the paint layer (E), leave the recess (e) on the colored resin film (B) or the colored paint (C) of the base steel sheet, and then apply paint ink and dry. The method of making it into a laminated body by repeating this method multiple times, the method of changing the color, pattern, coating amount, etc., and the like are mentioned. In addition, when the colored resin film (B) or the colored paint (C) has a joint pattern printed layer, the paint layer (E) may be only a single color or a transparent layer, and when there is no joint pattern printed layer, the paint layer ( E) may have a joint pattern printing coating layer.
[0027]
The type of resin constituting the resin layer (E) may be the same as the resin constituting the colored resin film (B), and the joint pattern of the paint layer (E) is a joint print pattern formed by the paint (D). May be the same or different. The colorant may be the same as the colorant used when forming the joint pattern with the paint (D), and the printing method may be the same as the method of printing and applying the paint (D). The surface of the coating layer (E) may exhibit any of a flat shape, a concavo-convex shape, and a crease shape (very small concavo-convex shape).
[0028]
In the steel sheet with joint pattern according to the present invention, since the joint pattern is formed by a printing method, the joint pattern can be bent without crushing the joint pattern when bending. Moreover, since there is no unevenness | corrugation in a back surface, since it can be stuck when adhering to face materials, such as a gypsum board, it is easy to construct. The steel sheet with joint pattern according to the present invention can be suitably used for applications such as interior materials, exterior materials, wall materials such as bathroom units, toilet units, and ceiling materials.
[0029]
  Hereinafter, the metal plate used when manufacturing the steel sheet with joint pattern according to the present invention, the type of resin film, the type of paint, the type of ink, the method of pattern printing, etc.Although it demonstrates in detail, this invention is not limited to the following description examples, unless the meaning is exceeded.
[0030]
FIG. 1 is a schematic partial plan view of an example of a steel sheet with joint pattern according to the first invention of the present invention. In FIG. 1, 1 is a portion surrounded by convex joints, and 2 is a joint pattern printed by a screen printing method using printing paint (Seiko Advance Co., Ltd., UV curable HUG ink). A joint pattern is formed by combining polygons such as shapes and triangles.
[0031]
FIG. 2 is a cross-sectional view of an example of a resin film-coated steel sheet cut at right angles to the thickness direction. The resin film-coated steel plate 4 shown in FIG. 2 is a resin formed on the surface of a base steel plate 3 (galvanized thickness 0.5 mm) via a urethane-based adhesive (trade name: Olivevine, manufactured by Toyo Ink Co., Ltd.). Covered by film 5. The resin film 5 is obtained by laminating a polyvinyl chloride film layer 6 (thickness: 120 μm) and a transparent polyethylene terephthalate film layer 7 (thickness: 40 μm) printed on the back by a dry lamination method. In FIG. 3, a convex joint 8 having a maximum height of 100 μm was formed on the resin film-coated steel plate 4 by using a screen ink (trade name: TJN ink, manufactured by Seiko Advance Co., Ltd.). FIG. 2 is a partially enlarged cross-sectional view of a resin film-coated steel sheet cut at right angles to the thickness direction.
[0032]
FIG. 4 shows a state in which a convex joint 9 having a maximum height of 50 μm is formed on the resin film-coated steel plate 4 by using a screen ink (trade name: TJN ink, manufactured by Seiko Advance Co., Ltd.). In the center of the convex joint 9 in the width direction, a concave portion 10 is provided along the direction in which the convex joint 9 extends. In FIG. 5, the width from one shoulder of the depressed portion 12 of the convex shape 11 to the depressed central portion side is printed with a dark color paint 13 (trade name: SG740 ink, manufactured by Seiko Advance) by screen printing. It is a partial expanded sectional view in the state where the remaining part is not printed.
[0033]
In FIG. 6, a joint pattern 14 of a dark color paint (manufactured by Toyo Ink Manufacturing Co., Ltd., trade name: V336VCGTK) is printed on the resin film-coated steel plate 4 by a gravure printing method so as to overlap with a part of the joint pattern 14. It is a partial expanded sectional view in the state where the convex shape 15 printed by the screen printing method was formed with a white translucent paint (trade name: SG740 ink, manufactured by Seiko Advance Co., Ltd.). In FIG. 7, a joint pattern 16 is printed on the resin film-coated steel plate 4 with a dark paint (same type as that used in FIG. 6) by a gravure printing method so that it overlaps a part of the joint pattern 16. It is a partial expanded sectional view in the state where convex shape 17 formed by the same method was formed with the white translucent paint (same kind as what was used in Drawing 6). In FIG. 8, a joint pattern 18 having a convex cross section is printed on the resin film-coated steel plate 4, and a joint pattern 19 of dark paint (same type as that used in FIG. 5) is formed on the joint pattern 18 above. It is a partial expanded sectional view of the example printed.
[0034]
FIG. 9 is a schematic partial plan view of an example of a steel sheet with joint pattern according to the second invention of the present invention. In FIG. 9, reference numeral 21 denotes a pattern surrounded by a joint 22, which is a rectangle (SG740) printed using two types of gravure inks (Seiko Advance Co., Ltd., trade names: SG740 ink, TJN ink) having different hues. This is a combination of polygons such as ink (using ink), square, and diamond (using TJN ink). A concave joint 22 having a width of 1 mm to 10 mm surrounds the outer periphery of a plurality of printed pattern print patterns. As described above, the steel plate used in the practice of the second invention may be of the same type as that shown in FIG.
[0035]
FIG. 10 is a partially enlarged sectional view of an example of the concave joint cut at right angles to the thickness direction. In FIG. 10, 24 is a base material coated steel sheet, 29 is a single color coated printing layer (thickness 20 μm), and a single color paint (T & K) having a different color from the paint applied to the surface of the coated steel sheet. Using TOKA, trade name: UV161 ink), printing was performed by a screen printing method. Reference numeral 26 denotes a pattern coated printing layer (thickness 40 μm), which was printed by a screen printing method using a transparent two-component curable ink (trade name: SG740 ink, manufactured by Seiko Advance Co., Ltd.). Reference numeral 27 denotes a transparent coated printing layer (thickness 20 μm), which was printed by a screen printing method using a transparent UV curable ink (manufactured by Seiko Advance, trade name: TJN ink). Reference numeral 22 denotes a concave joint having an opening width of 4 mm.
[0036]
FIG. 11 is another example of a concave joint, and is a partially enlarged cross-sectional view cut at right angles to the thickness direction. In FIG. 10, the steel sheet surface not shown is covered with a resin film layer 25 having a pattern printed on the back surface with a UV curable ink (trade name: US ink, manufactured by Seiko Advance Co., Ltd.). A transparent coating printing layer 27 (thickness 150 μm) was formed on the top by screen printing. At the bottom of the concave joint 22 of the transparent coated printing layer 27, an opaque two-component curable ink (trade name: SG740 ink, manufactured by Seiko Advance Co., Ltd.) is used, and a single-color coated printing layer (thickness 10 μm) is obtained by screen printing. ) 28 was formed. The surface of the single-color coating / printing layer 28 has a concavo-convex pattern. From the upper side of the product, the pattern of the resin film layer 25 can be visually recognized as a transparent coated printing layer 27 and a thin opaque coated monochrome printing layer 28.
[0037]
FIG. 12 shows a transparent coated printing layer (thickness: 100 μm) 30 printed by a screen printing method using a transparent one-component easy-drying curable ink (trade name: PPT ink, manufactured by Seiko Advance Co., Ltd.). It is the elements on larger scale of the state which printed the part of the part which the resin film covering steel plate 24 of the shape joint 22 exposed to the thickness of 10 micrometers with the deep color paint 20 (same kind as what was used in FIG. 5). FIG. 13 shows an example in which a part of the concave joint 22 where the resin film-coated steel plate 24 is exposed is printed with the dark paint 30. In FIG. 14, the surface of the transparent coated printing layer 27 surrounded by the concave joints 22 has a small uneven pattern.
[0038]
[Effects of the invention]
The present invention is as described above in detail, and has the following particularly advantageous effects, and its industrial utility value is extremely large.
1. In the steel sheet with joint pattern according to the first and second inventions of the present invention, since the joint pattern is formed by a printing method, the joint pattern is not damaged when bending, and a special mold or the like is also available. It is unnecessary.
2. The steel sheet with joint pattern according to the first and second inventions of the present invention has a joint pattern formed by a printing method and has a flat back surface, so that it is brought into close contact with a flat material such as a flat gypsum board. Because it is possible, it is easy to construct.
3. The steel sheet with joint pattern according to the first and second inventions of the present invention has a colored resin film (B) or a colored paint (C) on either the colored resin film-coated surface or the paint-coated surface of the base steel sheet. Since the joint pattern is formed by printing and applying the paint (D) or the paint layer (E) having a color different from the above-mentioned color, it is visually recognized as a joint pattern having a deep and uneven feeling.
4). According to the method for manufacturing a steel sheet with joint pattern according to the present invention, since the joint pattern is formed by a printing method, the joint pattern can be freely changed by changing the printing roll and the printing original plate, which are different. Multiple joint patterns can be printed very easily.
[Brief description of the drawings]
FIG. 1 is a schematic partial plan view of an example of a steel sheet with joint pattern according to a first invention of the present invention.
FIG. 2 is a cross-sectional view of an example of a resin film-coated steel plate.
FIG. 3 is a cross-sectional view of an example in which convex joints are formed on a resin film-coated steel plate.
FIG. 4 is a partially enlarged cross-sectional view in a state where convex joints are formed on a resin film-coated steel plate.
FIG. 5 is a partial enlarged cross-sectional view in a state where a width from one shoulder side to a depressed central portion side is printed in a dark color and a remaining portion is not printed.
FIG. 6 is a partially enlarged cross-sectional view in a state where a joint pattern is printed with a dark color paint on a resin film-coated steel plate and a convex shape is formed by a transparent paint so as to overlap a part of the joint pattern. It is.
FIG. 7 is a partially enlarged cross-sectional view of an example in which the joint pattern is reduced and the convex cross-sectional shape is changed in the diagram shown in FIG.
FIG. 8 is a partially enlarged cross-sectional view of an example in which a joint pattern having a convex cross-sectional shape is printed on a resin film-coated steel sheet, and a dark paint pattern is printed on the upper side of the joint pattern.
FIG. 9 is a schematic partial plan view of an example of a steel sheet with joint pattern according to the second invention of the present invention.
FIG. 10 is a partially enlarged cross-sectional view of an example of a concave joint.
FIG. 11 is a partial enlarged cross-sectional view showing a state in which the entire width of a portion where the resin film layer having a concave joint is exposed is printed with a dark paint.
FIG. 12 is a partially enlarged cross-sectional view showing a state where a part of a portion where a resin film layer having a concave joint is exposed is printed with a dark paint.
FIG. 13 is a partial enlarged cross-sectional view showing a state where a central portion where a resin film layer having a concave joint is exposed is printed with a dark paint.
FIG. 14 is a partially enlarged cross-sectional view showing an unevenness (itching) pattern on the surface of a paint layer surrounded by concave joints.
[Explanation of symbols]
1: Part surrounded by convex joint
2: Convex joint formed by printing paint
3, 23: Steel plate of base material
4, 24: Resin-coated steel sheet or paint-coated steel sheet
5, 25: Resin film or paint
6: Monochromatic resin film layer or monochromatic paint coating layer
7, 27: Transparent resin film layer or transparent paint coating layer
8, 9: Convex joint
10 and 12: depressions formed on the convex joints
11, 18: Convex joints formed by a concealing paint
13, 14, 16, 19, 20: Print section of dark paint
15, 17: Convex joints formed by a paint with low concealability (translucent)
21: A part surrounded by a concave joint
22: Concave joint
26: Pattern application printing layer
27: Transparent coated printing layer
28, 29: Single color coated printing layer

Claims (7)

  The color of the colored resin film (B) or colored paint (C) on either the resin film side of the resin film-coated steel sheet coated with a colored resin film on one side of the steel sheet or the paint surface of the paint-coated steel sheet coated with a colored paint The joint pattern formed in a convex shape in which the central part in the width direction is depressed or raised along the extending direction such as a curve or a straight line is printed and applied with a paint (D) of a color different from the taste. A steel plate with joint pattern (A1) characterized by being visually recognized as a joint pattern (a1) having a shape.   The color of the colored resin film (B) or colored paint (C) on either the resin film side of the resin film-coated steel sheet coated with a colored resin film on one side of the steel sheet or the paint surface of the paint-coated steel sheet coated with a colored paint A paint layer (E) of a color different from the taste is formed, and the colored resin film (B) surface or the colored paint (C) surface is exposed by the concave shape provided in the paint layer (E), and this is exposed. A jointed steel sheet (A2) characterized in that the joint pattern formed by the concave shape is visually recognized as a concave joint pattern (a2).   The joint pattern is a lattice pattern, stone pattern, stone wall pattern, wood grain pattern, clouds, waves, flowers, mountains, bamboo leaves, leaves, etc. The joint according to claim 1 or 2, comprising a combination of one or more patterns selected from the group consisting of a geometric pattern such as a lattice, and an abstract pattern obtained by abstracting these geometric patterns. Steel plate with a pattern.   The width from one shoulder side of the convex shape to the depressed central portion side is formed by printing a color pattern or the like in a dark color and printing the remaining portion without printing or in a light color. Claim | item 1 or the steel plate with a joint pattern of Claim 3.   The joint pattern (a1) prints a colored pattern or the like on the surface of the colored resin film (B) or the colored paint (C), and at least a part of this colored pattern printed surface is transparent or translucent. The steel sheet with joint pattern according to claim 1 or 3, wherein the steel sheet is formed by coating with a paint (D) having a low shielding property.   The joint pattern (a2) is formed by exposing the colored resin film (B) surface or the colored paint (C) surface by a concave shape provided in the paint layer (E), and applying the paint to the exposed recesses. The steel sheet with joint pattern according to any one of claims 2 and 3 to 5, wherein the steel sheet has a joint pattern.   The steel plate with joint pattern according to any one of claims 1 to 6, wherein the colored resin film (B) or the colored paint (C) is formed of a laminate including a color pattern printed layer.

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