JPH0261075A - Laminated stainless steel plate having different stereoscopic feels and color tones on surface and production thereof - Google Patents

Abstract

PURPOSE:To produce the laminated stainless steel plate having stereoscopic feels and color tones by adhering the stainless steel plate worked with patterns on the surface of a stainless steel base plate, coloring at least one surface of both the stainless steel plates and subjecting the colored surface to specular finishing or coating with a synthetic resin. CONSTITUTION:The stainless steel plate 1 which has 0.3 to 10.0mm thickness and is subjected to punching or laser beam cutting to the pattern shape is joined to the surface of the stainless steel base plate 2 by using an adhesive agent, tacky adhesive agent, double coated tacky adhesive sheet or brazing filler metal such as solder as a joining material 3. The surface of either of the stainless steel plate 1 or the stainless steel base plate is colored to various kinds of color tones by mixed acids of sulfuric acid and chromic acid or chromate and the non-colored surface of the stainless steel plate is subjected to mirror finishing or coating with the synthetic resin, by which the laminated stainless steel plate having the improved flawing resistance and durability and the excellent aesthetic appearance by the stereoscopic feels and color tones is produced.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention provides a laminated stainless steel sheet having a three-dimensional design effect and having different three-dimensional effects and color tones on its surface, which can be preferably used as building materials, etc. This relates to a manufacturing method.

[Conventional technology]

In recent years, corrosion resistance has become increasingly popular in areas where aesthetic appearance is required, including the interior and exterior of buildings.

There has been a strong demand for metal plates that are excellent in weather resistance, heat resistance, and impact resistance, and have a high design effect. Therefore, in the past, chemical coloring methods and embossing methods were used in which the surface of stainless steel sheets specified in JIS G4305 r Cold Rolled Stainless Steel Sheet was treated with a mixed acid of sulfuric acid and chromic acid or chromate to form a colored film on the surface. Designed steel plates made of stainless steel plates have been used, which have been finished with a coloring process or a simple textured finish on the surface.

[Problem to be solved by the invention]

However, since the conventional decorative steel sheets made of stainless steel sheets as described above are made of two stainless steel sheets, even if they are colored using chemical coloring methods, they are very complicated and cannot be produced in a single color unless strict process control is carried out. The color tone tends to be monotonous because only one material can be obtained, and on the other hand, the method of adding unevenness by embossing etc. has a limit on the depth and size of the unevenness, or the shape and distribution of the unevenness. There has been a problem in that it is not possible to obtain a designed steel plate made of stainless steel that has a unique or unique three-dimensional effect.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a laminated stainless steel sheet that has a three-dimensional effect and has a different three-dimensional effect and color tone on the surface with a large design effect due to changes in pattern, color corridor, shape size, and distribution, and a method for manufacturing the same. shall be.

[Means for Solving Problem 1] As a result of various studies to solve the above problem, the present inventors have found that the present inventors have a colored film treated by the chemical coloring method or have a colored film. A flat stainless steel substrate with a stainless steel base surface that is not colored, and a stainless steel base surface that also has a colored film treated by the chemical coloring method or has no colored film. A stainless steel plate of a predetermined thickness cut into a pattern using a cutting method that does not change the color tone is prepared, and at least one of the stainless steel substrate and the stainless steel plate is coated with a colored film treated by the chemical coloring method. By using a stainless steel plate having a different color tone from the one mentioned above, the stainless steel plate is bonded to a stainless steel substrate by means that do not change the color tone of each plate to form a laminated stainless steel plate. The present invention was completed by discovering that a laminated stainless steel plate with excellent design effects, rich in three-dimensional appearance and color tone, can be obtained.

Hereinafter, the details of the laminated stainless steel plate having different three-dimensional effects and color tones on the surface according to the present invention will be explained based on the drawings.

Fig. 1 is a front view of an embodiment of a laminated stainless steel plate having different three-dimensional effects and color tones on the surface according to the present invention, Fig. 2 is an explanatory cross-sectional view taken along the line A-A in Fig. 1, and Fig. 3 is a cross-sectional view of the present invention. A front view of another example of a laminated stainless steel plate having different three-dimensional effects and color tones on the surface, FIG. 4 is an explanatory cross-sectional view taken along the line B-B in FIG. 3, and FIG. 5 is a stainless steel plate cut into patterns. It is a front view of another Example of a steel plate.

In the drawing, 1 is a stainless steel plate that has been cut into a pattern, and as shown in Figures 1 and 2, it is a rectangular plate that has been cut with a large number of holes formed in a completely arbitrary pattern by punching or laser cutting. In some cases, it is a stainless steel plate such as the above, or in some cases, it is a small piece of steel plate formed and cut into many patterns by punching or laser cutting, as shown in Figures 3 and 4, and the surface is coated with a colored film. The surface of the stainless steel is exposed to a mirror finish, or a colored film is formed by treatment with a mixed acid of sulfuric acid and chromic acid or chromate. When the stainless steel plate 1 is a small piece of steel plate as shown in FIGS. 3 and 4, the shape of the cut pattern can be various shapes as shown in FIG. 5. Further, the size of the pattern and the distribution in the steel sheet can be completely arbitrary. 2 is a flat stainless steel substrate, and like the stainless steel plate 1 described above, its surface has been given a surface finish such as a mirror finish in which the stainless steel base surface without a colored film is exposed, or it has been treated with sulfuric acid and A colored film is formed by treatment with chromic acid or a mixed acid with chromate, but in the present invention, at least one of the surface of the stainless steel plate 1 and the surface of the flat stainless steel substrate 2 is treated with sulfuric acid. One has a colored film treated with chromic acid or a mixed acid with a chromate, and the other has a colored film treated with a mixed acid of sulfuric acid and chromic acid or a chromate. It is necessary that the uncoated stainless steel base surface is exposed and has a different color tone from the one surface that has the colored film.

Reference numeral 3 denotes a bonding material for bonding the back surface of the stainless steel plate 1 and the surface of the flat stainless steel substrate 2 using a means that does not change the color tone of the stainless steel surface. It is either a double-sided adhesive sheet or a waxing agent such as solder, and in the case of a double-sided adhesive sheet, release paper is removably adhered to both sides of the sheet before use.

In the present invention, it is necessary that the surface of the stainless steel plate 1 and the surface of the stainless steel substrate 2 have different tones as described above. This is different from the state where the stainless steel base surface has no colored film, and the state where the surface base of the stainless steel plate is exposed and the finished state of the exposed surface is a mirror finish state, No. 28. ．． No
, 3 , , No. , 4 .

It refers to the finish condition of a stainless steel plate that has a relatively excellent appearance, such as surface finish conditions such as BA and HL.

Here, the stainless steel plate 1 is to be laminated by being bonded to the surface of the stainless steel substrate 2 with the bonding material 3 to form a design steel plate with a three-dimensional effect, so the thickness is 0.3 to 1.
It is necessary to use a material with a thickness of 0.0 mm, and if it is thinner than 0.3 mm, the surface of the obtained laminated stainless steel sheet will not produce a three-dimensional effect, and the main objective of the present invention will not be achieved. Considering the application, empirically, the maximum plate thickness should be about 10.01 mm. In addition, the method of cutting the stainless steel plate 1 into an arbitrary pattern requires punching or laser cutting so that the color tone of the cut portion of the stainless steel plate 1 does not change. The bonding material 3 used to bond the surface of the substrate 2 also needs to not change the color tone of the stainless steel surface of the bonded portion, so a high-temperature bonding method such as welding cannot be used, so an adhesive or adhesive 9 is used. Either a double-sided adhesive sheet or a waxing agent such as solder is used.

In the present invention, the surface of the laminated stainless steel plate manufactured by bonding the back surface of the stainless steel plate 1 and the front surface of the stainless steel substrate 2 with the bonding material 3 is made of vinyl chloride resin, polyethylene resin, etc. as shown in FIG. It is more preferable to coat with a synthetic resin film 4 such as polyester resin, since this provides scratch resistance, durability, and smooth appearance.

In order to manufacture a laminated stainless steel plate having different three-dimensional effects and color tones on the surface according to the present invention as described above, at least one of the surface of the flat stainless steel substrate 2 and the surface of the stainless steel plate 1 is treated with sulfuric acid and chromic acid. Alternatively, it is treated with a mixed acid with chromate to form a colored film on the surface. When a colored film is to be formed on the surface of the other stainless steel plate 1 or the surface of the stainless steel substrate 2, sulfuric acid and chromic acid or chromate may be added to a color tone that is different from that which caused the colored film on the other side. A colored film is formed on the surface by treatment with a mixed acid of Alternatively, perform a mirror finish by polishing or the like. After that, the stainless steel plate 1 may be cut into patterns by punching or laser cutting, and the back side of the stainless steel plate 1 cut into patterns may be bonded to the surface of the stainless steel substrate 2 with the bonding material 3 and laminated. However, in order to produce a laminated stainless steel plate having different three-dimensional effects and color tones on the surface according to the present invention using the method of the present invention, the stainless steel plate 1 is cut into patterns by punching or laser cutting. After peeling off the release paper on one side and pasting a double-sided adhesive sheet as the bonding material 3 on the entire back surface of the sheet, this is cut into patterns by punching or laser cutting. After that, the other release paper remaining on the double-sided adhesive sheet is peeled off, and the stainless steel plate 1 cut in a pattern is adhered to the surface of the stainless steel substrate 2 through the double-sided adhesive sheet. According to the method of the present invention, the operation of laminating the back surface of the stainless steel plate 1 cut into a pattern and the front surface of the stainless steel substrate 2 can be carried out very easily and with good workability, which is preferable. During this lamination, if a method is adopted in which the stainless steel plate 1 and the stainless steel substrate 2 are pressed and bonded using pinch rolls or the like, the laminated stainless steel plate can be manufactured more easily, reliably, and economically.

[For production]

In the laminated stainless steel plate having different three-dimensional effects and color tones on the surface according to the present invention as described above, since two stainless steel plates are laminated, the thickness of the stainless steel plate 1 cut into the upper pattern may be In addition, a pattern with a three-dimensional effect is formed by completely arbitrary pattern dimensions, distribution, color contrast, etc., and at least one of the stainless steel plate 1 and the stainless steel substrate 2 is colored, and the stainless steel plate 1 and the stainless steel substrate 2 are colored. Since the color tone is different from that of the stainless steel substrate 2, it has a rich color tone and a clear pattern.

〔Example〕

Example 1 A stainless steel strip (S) with a thickness of 0.5 mm and a width of 1000 mm
US304) Cry, : 250g/12, H
,SO,: 250 g/u, steel for stainless steel substrates having a blue colored film formed by continuously passing the plate through a colored liquid at a temperature of 80°C to form a colored oxide film on the surface of the stainless steel strip. I got the belt.

On the other hand, a stainless steel strip (SUS304) with a thickness of 1.5 mm and a width of 10100 O was passed through the same colored solution as above while changing the threading speed etc., and the surface of the stainless steel strip was colored and oxidized. A treatment for forming a film was carried out to obtain a stainless steel strip having a golden colored film.

Both stainless steel strips are 1000 nn wide x 2000 nn long.
am stainless steel plate, peel off the M paper on one side and adhere a double-sided adhesive sheet to the back of the golden stainless steel plate, and use a punching machine to punch out circular holes with a diameter of 30 cm and a center spacing of 50 m. A stainless steel plate with a continuous pattern was obtained. Then, the release paper on the other side of the double-sided adhesive sheet adhered to the back side of the stainless steel plate having a continuous pattern is peeled off, and the sheet is placed on the surface of the blue stainless steel substrate, and the sheet is passed between pinch rolls. By pressing, a laminated stainless steel plate having different color tones on the surface as shown in FIGS. 1 and 2 was obtained. This laminated stainless steel plate had a three-dimensional appearance and had a continuous pattern in which many blue circles were arranged, and the surrounding body had a rich design effect of golden color.

Example 2 On the surface of a stainless steel substrate made of a stainless steel strip (SUS304) with a thickness of 0.6 mm, a width of 1200 a + x a length of 1800 mm, and polished to a mirror finish by puff polishing, a circular gold plate with a diameter of 30 mm punched out in Example 1 was placed. Place a small piece of stainless steel plate as appropriate by peeling off the release paper on the other side of the double-sided adhesive sheet stuck to the back side of the small piece of stainless steel plate,
Press by passing between pinch rolls and press the third
A laminated stainless steel plate having different color tones on the surface as shown in FIG. 4 was obtained.

This laminated stainless steel plate had a three-dimensional appearance and a continuous pattern of a large number of golden circles, and the surrounding area had a mirror finish with a rich color design effect.

Example 3 A stainless steel substrate was prepared by cutting a stainless steel strip (SUS304) having a thickness of 0.4 m, a width of 300 mm, and a length of 500 m, which had been polished to a mirror finish by continuous puff polishing.

On the other hand, a stainless steel strip (SUS304) with a thickness of 1.5 mm and a width of 1000 nyn was continuously passed through the same colored liquid as in Example 1 to form a colored oxide film on the surface of the stainless steel strip. After obtaining a stainless steel strip having a green colored film, this colored stainless steel strip was cut to obtain a stainless steel plate having a width of 300 Trn and a length of 5001 m.

After that, the release paper on one side was peeled off and a double-sided adhesive sheet was attached to the back of this stainless steel plate, and a rectangular hole with a width of 200 ra and a length of 400 mm was cut in the center of the sheet using laser cutting. Peel off the release paper on the other side of the double-sided adhesive sheet that has been adhered to the back side of the stainless steel plate, place it on the surface of the green stainless steel substrate, and press it by passing it between pinch rolls to press it in the center. A laminated stainless steel plate was obtained, which had a rectangular mirror with a width of 200 an x a length of 400 I in the section, and had a green surrounding with a different three-dimensional effect and color tone. This laminated stainless steel plate has a three-dimensional appearance and is corrosion resistant, so it can be used as a mirror with a rich color design effect suitable for use in bathrooms.

〔Effect of the invention〕

As detailed above, the laminated stainless steel plate having different three-dimensional effects and color tones on the surface according to the present invention has two stainless steel plates with different color tones stacked together, and the upper stainless steel plate is a steel plate cut into a pattern. Therefore, unlike the conventional design steel plate which is made of a single stainless steel plate and has a monotonous color tone, it has an excellent three-dimensional effect and has an excellent design effect with a change in color tone. 2
By using stainless steel sheets, a wide variety of color combinations are possible, and its uses range from buildings to general houses, such as pillars, walls, doors, entrance doors, and other construction materials, various kitchen products, home appliances, and vehicles. , a wall painting with nine shapes of various handles, a signboard with a combination of shapes, etc. has the advantage of being more widespread.

In addition, the method for manufacturing a laminated stainless steel plate having different three-dimensional effects and color tones on the surface according to the present invention employs a method of adhering double-sided adhesive tape to the back side of the upper stainless steel plate before cutting it into patterns. This method has the advantage that the upper stainless steel plate cut into a pattern can be laminated on the lower stainless steel substrate, making the manufacturing process very easy and economical.

The present invention, which has various advantages as described above, has great industrial value.

[Brief explanation of the drawing]

Fig. 1 is a front view of an embodiment of a laminated stainless steel plate having different three-dimensional effects and color tones on the surface according to the present invention, Fig. 2 is an explanatory cross-sectional view taken along the line A-A in Fig. 1, and Fig. 3 is a cross-sectional view of the present invention. A front view of another example of a laminated stainless steel plate having different three-dimensional effects and color tones on the surface, FIG. 4 is an explanatory cross-sectional view taken along the line B-B in FIG. 3, and FIG. 5 is a stainless steel plate cut into patterns. It is a front view of another Example of a steel plate. 1... Stainless steel plate cut into a pattern 2...
・Stainless steel substrate 3... Bonding material 4... Synthetic resin film

Claims (1)

[Claims] 1. Means for not changing the color tone of the stainless steel surface on the surface of a stainless steel substrate whose back surface is a flat plate of a stainless steel plate with a thickness of 0.3 to 10.0 mm cut into a pattern by punching or laser cutting. At least one of the surfaces of the stainless steel substrate and the stainless steel plate has a colored film treated with a mixed acid of sulfuric acid and chromic acid or a chromate, and the other has a colored film treated with a mixed acid of sulfuric acid and chromic acid or a chromate. A stainless steel base surface that has a colored film treated with chromic acid or a mixed acid with chromate, or has no colored film, and has a color tone different from the one surface that has the colored film. A laminated stainless steel sheet having different three-dimensional effects and color tones on its surface. 2. The laminated stainless steel plate according to claim 1, wherein the surface of either the stainless steel substrate or the stainless steel plate has a mirror finish. 3. The laminated stainless steel plate having a different three-dimensional effect or color tone on the surface according to claim 1 or 2, wherein the surface of the laminated stainless steel plate having a different three-dimensional effect or color tone on the surface is coated with a synthetic resin film. 4 The surface of the flat stainless steel substrate and 0.3 to 10.
At least one surface of a 0 mm thick stainless steel plate is treated with a mixed acid of sulfuric acid and chromic acid or chromate to form a colored film on the surface, and when the other surface is not colored, the stainless steel base surface is treated. Finish the surface of
Peeling off the release paper on the stainless steel plate side and adhering a double-sided adhesive sheet to the back side of the stainless steel plate with a thickness of 0.3 to 10.0 mm, and then cutting this into a pattern by punching or laser cutting, Thereafter, the release paper of the double-sided adhesive sheet adhered to the back side of the stainless steel plate cut into the pattern is peeled off, and the sheet is adhered to the surface of the stainless steel substrate via the double-sided adhesive sheet to form the pattern. At least one of the surface of the cut stainless steel plate and the surface of the stainless steel substrate has a colored film treated with a mixed acid of sulfuric acid and chromic acid or a chromate, and the other has a colored film treated with a mixed acid of sulfuric acid and chromic acid or chromate. The finished surface of a stainless steel substrate has a colored film treated with a mixed acid with an acid salt or has no colored film, and has a color tone different from the one surface that has the colored film. A method for producing a laminated stainless steel plate having different three-dimensional effects and color tones on the surface, the method comprising: producing a laminated stainless steel plate having different three-dimensional effects and color tones on the surface.