JP2006130741A - Decorative metal panel, metal door and manufacturing method of decorative metal panel - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a decorative metal panel which prevents a pattern from becoming dull, causes no whitening phenomenon on its bent surface when the side of the decorative metal panel is bent and is excellent in commodity properties and manufacturing workability. <P>SOLUTION: In the decorative metal panel 1 manufactured by bonding a synthetic resin decorative sheet 3, which is constituted by applying and forming a transparent sheet 5 comprising a vinyl chloride resin on the surface of the pattern 6 of a colored base material sheet 4, which has the pattern 6 formed to its surface and comprises the vinyl chloride resin, to a metal substrate 2 by an adhesive, the amounts per a unit volume of a plasticizer respectively compounded with the colored base material sheet 4 and the transparent sheet 5 both of which constitute the synthetic resin decorative sheet 3 are set so that the amount of the plasticizer compounded with the transparent sheet 5 is larger than that of the plasticizer compounded with the colored base material sheet 4. The colored base material sheet 4 is constituted of a colored semi-hard base material sheet and the transparent sheet 5 is constituted of a weak soft type transparent sheet. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention is suitably used as a decorative metal plate obtained by bonding a synthetic resin decorative sheet to a metal substrate with an adhesive, particularly as a surface material of a metal door of a building, an interior / exterior material of a building, or an interior material of an elevator. The present invention relates to a decorative metal plate for a building, a metal door using the decorative metal plate as a surface material, and a method of manufacturing the decorative metal plate.

  An elevator decorative panel in which a soft synthetic resin decorative sheet is bonded to a metal substrate is disclosed in Patent Document 1 below. This decorative panel is formed in a rectangular shape, and its four sides are bent in a flange shape with the soft synthetic resin decorative sheet as the surface side.

  However, in a decorative metal plate in which a synthetic resin decorative sheet is bonded and formed on the surface of such a metal substrate, when the side of the decorative metal plate is bent, the synthetic resin decorative sheet is not allowed to be formed on the bent surface. Whitening due to surface deterioration or fine cracks due to simple bending may occur, causing defective products.

  In particular, the synthetic resin decorative sheet constituting the decorative metal plate has a multilayer structure, and a transparent base sheet made of a vinyl chloride resin is provided on the pattern surface of the colored base sheet made of a vinyl chloride resin having a pattern pattern formed on the surface. A decorative metal plate obtained by bonding a synthetic resin decorative sheet formed by thermal lamination to a metal substrate with an adhesive has the following problems.

  That is, a pattern surface is formed on the surface of the colored base sheet, but the colored base sheet may be stretched during the thermal laminating to cause a pattern. However, in order to prevent the sagging of the pattern caused by the elongation of the colored base sheet, the amount of the plasticizer blended in the colored base sheet is relatively reduced, and the colored base sheet and the transparent sheet on the surface are used. In the case of being formed of a semi-rigid sheet, when the side of the decorative metal plate is bent, the above-described whitening phenomenon occurs on the bent surface, particularly the transparent sheet.

In view of the above points, it is conceivable that the synthetic resin decorative sheet is adhered to the surface of the rectangular metal substrate in which the flanges are formed by bending the four sides in advance. However, the adhesion of the synthetic resin decorative sheet by such post-processing deteriorates the manufacturing workability.
Japanese Patent Laid-Open No. 7-187550

  The present invention has been made in view of the above points, and a transparent sheet made of a vinyl chloride resin is applied to a pattern surface of a colored base sheet made of a vinyl chloride resin having a pattern formed on the surface by heat lamination. When a decorative synthetic resin sheet is bonded to a metal substrate with an adhesive, the decorative pattern does not appear on the decorative metal sheet and the sides of the decorative metal sheet are bent. It is an object of the present invention to provide a decorative metal plate excellent in merchantability and manufacturing workability without causing the above-described whitening phenomenon.

  In order to achieve the object, the decorative metal plate 1 of the present invention has a pattern of the colored base sheet 4 made of a vinyl chloride resin having a pattern 6 formed on the surface, as shown in the embodiment of the figure. The synthetic resin decorative sheet 3 is formed on a decorative metal plate 1 having a synthetic resin decorative sheet 3 formed by applying a transparent sheet 5 made of vinyl chloride resin on the surface and bonded to the metal substrate 2 with an adhesive. The amount per unit volume of the plasticizer blended in each of the colored base sheet 4 and the transparent sheet 5 is larger than the amount blended in the colored base sheet 4. The colored base sheet 4 is composed of a colored semi-rigid base sheet, and the transparent sheet 5 is composed of a weak soft transparent sheet.

As the above-mentioned adhesive, it is desirable to use a polyurethane-based adhesive.
The synthetic resin decorative sheet 3 may have a multilayer structure of three or more layers. Moreover, the transparent sheet 5 should just be a structure which can see the internal pattern 6 substantially transparent, such as translucent and colored transparency. The pattern 6 can be formed by single-layer or multi-layer printing with a single color or multiple colors. Furthermore, embossing with fine irregularities may be formed on the surface of the synthetic resin decorative sheet 3.

  In the colored semi-rigid substrate sheet, 15 to 22 parts by weight of a plasticizer is blended with respect to 100 parts by weight of the vinyl chloride resin, and in the weakly soft transparent sheet, 27 parts of plasticizer is added to 100 parts by weight of the vinyl chloride resin. It is characterized by having a composition structure containing ~ 32 parts by weight.

Experiments have confirmed that when the plasticizer blended in the colored semi-rigid substrate sheet is less than 15 parts by weight, the flexibility is poor, and when it is more than 22 parts by weight, the shape stability is poor and the multicolor printing suitability is poor. .
Moreover, when the plasticizer mix | blended with a weak soft type transparent sheet is less than said 27 weight part, the whitening phenomenon by bending will appear, and when more than 32 weight part, heat lamination suitability and heat-resistant embossing property will be inferior.

Further, in order to adapt the decorative metal plate according to the present invention as a surface material such as a metal door, the four sides around the decorative metal plate 1 formed into a rectangular shape are surface whitened based on deterioration of the synthetic resin material due to bending. In a state where the phenomenon does not occur, the synthetic resin decorative sheet 3 may be bent into a substantially flange shape with the surface side, and flange portions 1 a may be formed on the upper, lower, left and right edges of the rectangular decorative metal plate 1.
The flange portion 1a may be formed by bending the upper, lower, left and right edges of the rectangular decorative metal plate 1 in a substantially L-shaped or substantially U-shaped substantially right-angle inward direction.

  Moreover, the metal door 10 of the present invention has a rectangular thick plate shape as a whole, and the above-mentioned decorative metal plate 1 is used, and the four sides around the rectangular shape are bent into a substantially flange shape with the synthetic resin decorative sheet 3 as the surface side. A feature is that the rectangular inner and outer surfaces of the core 11 made of an aluminum hydroxide paper core are covered with the processed inner and outer decorative metal plates 1 and 1.

  In the method for producing a decorative metal plate according to the present invention, first, a pattern 6 is formed on the surface of the colored semi-hard base sheet 4 made of a vinyl chloride resin by printing, and the colored semi-hard base sheet 4 The synthetic resin decorative sheet 3 is formed by depositing the weak soft transparent sheet 5 made of vinyl chloride resin on the surface of the pattern 6 by heat lamination. The decorative metal plate 1 is manufactured by bonding the synthetic resin decorative sheet 3 to the metal substrate 2 with an adhesive. Next, the decorative metal plate 1 is cut into a rectangular shape and molded, and the four sides around the decorative metal plate 1 are bent and formed into a substantially flange shape with the synthetic resin decorative sheet 3 on the surface side to form a flange portion 1a. It is characterized by doing.

  In the decorative metal plate, the metal door using the decorative metal plate, and the manufacturing method thereof according to the present invention, the colored substrate sheet 4 and the transparent sheet 5 constituting the synthetic resin decorative sheet 3 are both formed of a vinyl chloride resin, The colored base sheet 4 on which the pattern 6 is formed has a relatively small amount of plasticizer to be blended per unit volume (preferably 15 to 20 weights of plasticizer with respect to 100 parts by weight of vinyl chloride resin). Since the colored semi-rigid substrate sheet is composed of the colored semi-rigid substrate sheet, the colored substrate sheet 4 does not stretch and the pattern 6 is deformed during the thermal lamination. Further, in the transparent sheet 5 on the surface, a weakly soft material in which the amount of the plasticizer to be blended is relatively large (preferably, 27 to 32 parts by weight of the plasticizer is blended with respect to 100 parts by weight of the vinyl chloride resin). Since it is composed of a transparent base sheet, it has good folding followability, does not cause the whitening phenomenon described above due to the bending of the decorative metal plate, and temporarily causes a whitening phenomenon due to material deterioration in the colored substrate sheet 4 inside. Even if it is, it is inconspicuous because it is a colored sheet, and further, since the surface is covered with the pattern 6, it is visible from the makeup surface side and does not deteriorate the merchantability.

  Therefore, in the present invention, it is possible to obtain a decorative metal plate that has good manufacturing workability, good merchantability, and no defective products, and is used by bending the rectangular periphery of the decorative metal plate into a flange shape and using it. It can be suitably used as an interior / exterior material for objects, a decorative metal plate for elevators, and the like.

  DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below in detail with reference to the accompanying drawings. 1, 2 and 3 are a sectional view, a partially enlarged sectional view and an exploded sectional view of a decorative metal plate according to the present invention.

  As described above, the decorative metal plate 1 according to the present embodiment is provided with a vinyl chloride resin on the pattern surface of the colored base sheet 4 made of a vinyl chloride resin, on which a pattern pattern 6 is formed in advance by printing or the like. A synthetic resin decorative sheet 3 in which a transparent sheet 5 made of this material is formed by thermal lamination is joined to a metal substrate 2 made of stainless steel or the like with a polyurethane adhesive to form a multilayer composite structure.

  The amount per unit volume of the plasticizer blended in the colored base sheet 4 and the transparent sheet 5 constituting the synthetic resin decorative sheet 3 is the amount blended in the colored base sheet 4 (100 parts by weight of vinyl chloride resin). The amount of the plasticizer blended in the transparent sheet 5 (the blend of 27 to 32 parts by weight of the plasticizer with respect to 100 parts by weight of the vinyl chloride resin) is more colored than the blend of 15 to 20 parts by weight of the plasticizer. The base sheet 4 is made of a colored semi-hard base sheet, and the transparent sheet 5 is made of a weak soft transparent sheet.

  The decorative metal plate 1 is formed in a rectangular shape, and the surrounding four sides of the decorative metal plate 1 are bent into a substantially flange shape with the synthetic resin decorative sheet 3 on the surface side at room temperature. Flange portions 1a are formed on the left and right edges. The flange portion 1a is formed by bending the upper, lower, left and right edges of the rectangular decorative metal plate 1 in a substantially L-shaped or substantially U-shaped inward direction at a substantially right angle.

  The decorative metal plate 1 according to such an embodiment is applied to a member of a building such as a metal door 10 and an elevator interior material described later, and a surface material of an interior / exterior material.

  FIG. 4 is a front view (A), a longitudinal sectional view (B), and a transverse sectional view (C) of a metal door manufactured using the decorative metal plate 1, and the embodiment is described with reference to FIG. The metal door 10 which concerns on will be demonstrated.

  As described above, the metal door 10 according to the embodiment has a rectangular thick plate shape as a whole, and uses the above-described decorative metal plate 1, and the four sides around the rectangular shape with the synthetic resin decorative sheet 3 as the surface side. The inner and outer decorative metal plates 1 and 1 formed by bending into a substantially flange shape cover the rectangular inner and outer surfaces of the core 11 made of an aluminum hydroxide paper core.

  A substantially U-shaped frame member 12 is fixed to the upper, lower, left and right end faces of the core member 11. The flange portions 1a formed on the upper and lower edges of the decorative metal plate 1 are bent into a substantially L shape, are superposed on the upper and lower frame members 12 of the core member 11, and are fixed by a fixture 13 such as a bolt. . Further, the flange portions 1 a formed on the left and right edges of the decorative metal plate 1 are formed in a substantially U-shape and are provided along the surfaces of the left and right frame members 12 of the core member 11. A member such as a hinge 14 is attached to the left and right substantially U-shaped flange portions 1a. Further, when a plurality of decorative metal plates 1 are connected, the substantially U-shaped flange portion 1a is joined and connected by a fixture such as a bolt.

  In the method for producing a decorative metal plate according to the present invention, as described above, first, a pattern 6 is formed on the surface of the colored semi-hard base sheet 4 made of vinyl chloride resin by printing, and this colored semi-hard The synthetic resin decorative sheet 3 is formed by depositing the weak soft transparent sheet 5 made of vinyl chloride resin on the surface of the pattern 6 of the base sheet 4 by heat lamination. The decorative metal plate 1 is manufactured by bonding the synthetic resin decorative sheet 3 to the metal substrate 2 with an adhesive. It is desirable that the decorative metal plate 1 is continuously manufactured by roll forming.

  Next, the decorative metal plate 1 is cut into a rectangular shape and molded, and the four sides around the decorative metal plate 1 are bent and formed into a substantially flange shape with the synthetic resin decorative sheet 3 on the surface side to form a flange portion 1a. To do.

A colored semi-rigid base with a pattern by printing a pattern with a vinyl chloride ink on the surface side of a 100 μm-thick colored semi-rigid vinyl chloride resin sheet containing 17 parts by weight of a plasticizer with respect to 100 parts by weight of a vinyl chloride resin A material sheet is formed, and a soft soft transparent vinyl chloride sheet having a thickness of 80 μm containing 30 parts by weight of a plasticizer with respect to 100 parts by weight of a vinyl chloride resin is formed on the pattern surface of the colored semi-rigid base sheet by thermal lamination. A vinyl chloride resin decorative sheet was produced by bonding the surface embossing together using an apparatus.
Next, a solvent-type two-component reactive polyurethane adhesive was applied to a preheated steel sheet having a thickness of 0.5 mm, and the back surface of the decorative sheet was immediately joined by roll joining to produce a decorative metal plate.
When the decorative metal plate is cut into a rectangular shape and molded, the four sides around the decorative metal plate are bent into a substantially flange shape with the vinyl chloride resin decorative sheet as the front side, and a flange portion is formed. There wasn't.

Comparative example

  A decorative metal plate was produced in the same manner as in the above example except that the weak soft transparent vinyl chloride sheet was changed to a semi-rigid transparent vinyl chloride sheet containing 17 parts by weight of a plasticizer with respect to 100 parts by weight of the vinyl chloride resin. When it was cut and formed into a rectangular shape, the four sides around the decorative metal plate were bent and formed into a substantially flange shape with the vinyl chloride resin decorative sheet as the front side, and a flange portion was formed.

  The decorative metal plate of the present invention is used as a decorative metal plate of a building such as a surface material of a metal door, a partition material, an interior / exterior material of a wall surface of a building, or an interior material of an elevator, or an accessory thereof. it can. It can also be used as a surface decorative metal plate for joinery and furniture.

It is sectional drawing of the decorative metal plate which concerns on this invention. It is a partially expanded sectional view of FIG. It is a partially exploded sectional view of the decorative metal plate according to the present invention. It is the front view (A), longitudinal cross-sectional view (B), and cross-sectional view (C) of the metal door which applied the decorative metal plate which concerns on this invention.

Explanation of symbols

1 decorative metal plate, 1a flange part 2 metal substrate 3 synthetic resin decorative sheet 4 colored substrate sheet (colored semi-rigid substrate sheet)
5 Transparent sheet (weakly soft transparent sheet)
6 Pattern 10 Metal door 11 Core material 12 Frame material 13 Fixing tool 14 Hinge

Claims (5)

A synthetic resin decorative sheet in which a transparent sheet made of vinyl chloride resin is deposited by thermal lamination on the pattern surface of a colored base sheet made of vinyl chloride resin with a pattern on the surface is bonded to a metal substrate with an adhesive. In the decorative metal plate joined to
The amount per unit volume of the plasticizer blended in the colored base sheet and the transparent sheet constituting the synthetic resin decorative sheet is the amount blended in the transparent sheet rather than the blended amount in the colored base sheet. A decorative metal plate, wherein the colored base sheet is composed of a colored semi-rigid base sheet, and the transparent sheet is composed of a weak soft transparent sheet.   In the colored semi-rigid substrate sheet, 15 to 22 parts by weight of a plasticizer is blended with respect to 100 parts by weight of the vinyl chloride resin, and in the weakly soft transparent sheet, 27 parts of plasticizer is added to 100 parts by weight of the vinyl chloride resin. The decorative metal plate according to claim 1, which has a composition structure containing ˜32 parts by weight.   The four sides around the decorative metal plate formed into a rectangular shape are bent into a substantially flange shape with the synthetic resin decorative sheet as the surface side in a state where the surface whitening phenomenon due to deterioration of the synthetic resin material due to bending does not occur. The decorative metal plate according to claim 1, wherein:   The decorative metal plate according to any one of claims 1 to 3, wherein the rectangular inner and outer surfaces of the core member made of an aluminum hydroxide paper core are substantially defined with the four sides around the rectangular shape being the synthetic resin decorative sheet as the surface side. A metal door having a structure covered with the inner and outer decorative metal plates formed by bending into a flange shape.   A pattern is formed on the surface of the colored semi-rigid substrate sheet made of vinyl chloride resin, and the weak soft transparent sheet made of vinyl chloride resin is formed on the pattern surface of the colored semi-rigid substrate sheet by heat lamination. The synthetic resin decorative sheet is formed by depositing, and the synthetic resin decorative sheet is bonded to a metal substrate with an adhesive to produce the decorative metal plate according to claim 1 or 2, wherein the decorative metal plate is A method for producing a decorative metal plate, wherein the decorative metal plate is formed into a rectangular shape and is bent into a substantially flange shape at room temperature with the synthetic resin decorative sheet as the surface side on the four sides around the decorative metal plate.

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