JP3414722B2 - Decorative members and decorative sheets - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention belongs to the technical field of a decorative member used for home electric appliances, automobile parts, building materials and the like, and a decorative sheet that can be used for manufacturing the decorative member.

[0002]

2. Description of the Related Art As a conventional decorating member, there is one in which a decorating layer is integrally adhered to the surface of an object to be decorated. The object to be decorated is a plastic molded product or the like, and the decoration layer is a layer formed on the surface of the object to be decorated by a transfer method or a simultaneous molding decoration method, which includes a surface protective layer, a pattern layer, an adhesive layer and the like. Also,
As a conventional decorative sheet, a decorative layer having a surface protective layer, a pattern layer, an adhesive layer, etc. is formed on a base material sheet, and the adhesive layer side is integrated with the surface of the object to be decorated. There are one that is used without peeling the base sheet after bonding (so-called insert sheet), and one that is peeled and used (so-called transfer sheet). The pattern layer of the decorative layer included a metal layer. Examples of the metal layer include a metal thin film layer obtained by metal vapor deposition and a high-intensity metallic layer containing a metallic pigment such as silver paste.

[0003]

However, when the decorative member is incorporated into a finished product as a component, there is a problem that the surface protective layer and the adhesive layer are easily peeled off from the pattern layer at the end, which is a demand. No decorative member or the like satisfying the required peel strength physical properties has been obtained. Therefore, various tests were conducted to measure the peel strength to investigate the cause. Peeling test between the surface protective layer and the picture layer or between the picture layer and the adhesive layer in the decorative member, and between the surface protective layer and the picture layer or between the picture layer and the adhesive layer in the decorative sheet ( For example, a cross-cut test (JIS-K540
0) and a pencil hardness test (JIS-K5400) etc., a peeling phenomenon occurred in each layer or inside the pattern layer. As the cause, since the pattern layer of the decorative layer includes a metal layer, the peeling stress applied to the decorative member during the peeling test is concentrated in the place where the adhesion between the layers or inside the layer is weakened. It is considered that the peeling spreads to other parts triggered by that part. The reason why there is a weak adhesion between the layers or within the layers is considered to be due to uneven distribution of the adhesive strength with the layers that are in direct contact with each other and uneven cohesive force within the layers. Since the metal thin film layer has no resin binder at all, the adhesive force with the adjacent layer is originally extremely weak. In addition, since the high-brightness metallic layer contains less resin binder component as much as it contains the metallic pigment, the adhesive strength with adjacent layers and the cohesive strength within the layer are poor.

[0004]

The present invention has the following structure. As described in claim 1, in a decorative member in which a decorative layer is integrally adhered to a surface of an object to be decorated, the decorative layer is a surface protection layer having a thickness of 1 to 250 × 10 ⁻³ mm, 1
A decorative member characterized in that it had a rubber elastic layer made of a resin having a 00% modulus of 0.1 to 25.5 × 10 ⁴ N / m 2 and a pattern layer, and the pattern layer contained a metal layer. As described in claim 2, the ratio of the thickness of the rubber elastic layer to the thickness of the surface protective layer is such that rubber elastic layer / surface protective layer = 0.004.
A decorative member having a size of up to 2.0 may be used. As described in claim 3, the rubber elastic layer may be a decorative member containing a thermosetting elastomer resin or a thermoplastic elastomer resin. As described in claim 4, a thickness of 30 to 250 × 1
A rubber elastic layer made of a resin having a 100% modulus of 0.1 to 25.5 × 10 ⁴ N / m 2 and a pattern layer are provided on a surface protection layer made of a sheet of 0 ⁻³ mm, and the pattern layer is a metal layer. The decorative sheet is characterized by containing. As described in claim 5, the ratio of the thickness of the rubber elastic layer to the thickness of the surface protective layer is such that rubber elastic layer / surface protective layer = 0.004 to 2.
A decorative sheet having a value of 0 may be used. As described in claim 6, the rubber elastic layer may be a decorative sheet containing a thermosetting elastomer resin or a thermoplastic elastomer resin. As described in claim 7, on a base material sheet that is peeled off after the decorative layer is integrally adhered to the surface of the decorated object,
A surface protective layer having a thickness of 1 to 250 × 10 ⁻³ mm, 100%
A rubber elastic layer made of a resin having a modulus of 0.1 to 25.5 × 10 ⁴ N / m 2 and a decorative layer having a pattern layer are formed, and the decorative layer includes a metal layer. It was used as a decorative sheet. As described in claim 8, the ratio of the thickness of the rubber elastic layer to the thickness of the surface protective layer is such that
A decorative sheet having a surface protective layer of 0.004 to 2.0 may be used. As described in claim 9, the rubber elastic layer may be a decorative sheet containing a thermosetting elastomer resin or a thermoplastic elastomer resin.

[0005]

DETAILED DESCRIPTION OF THE INVENTION

The decoration member and the decoration sheet of the present invention are
Since they are common in that they have a surface protective layer, a rubber elastic layer, and a pattern layer, these common layers will be described first.

The surface protective layer will be described. The surface protective layer is a layer for preventing the rubber elastic layer and the pattern layer from being damaged. The thickness of the surface protective layer is 1 to 250 × 10.
^-3 mm (μm) is preferable. The thickness of the surface protection layer is 1 ×
If it is less than 10 ⁻³ mm (μm), the surface protection function when the decorative layer is integrated with the surface of the object to be decorated becomes insufficient. On the other hand, if it exceeds 250 × 10 ⁻³ mm (μm), it takes a long time to heat the decorative sheet to deform it into a predetermined three-dimensional shape in advance, and the production efficiency becomes low. Also, from the viewpoint of the surface protection function, the thickness is not required, which leads to an increase in cost.

The surface protective layer may be a printed film, a coating film, or a sheet. The printed film is a film formed by a printing method. Printing methods include a gravure coating method, a roll coating method, a coating method such as a comma coating method, a gravure printing method, and a screen printing method. The coating film is a film formed by a coating method. As the coating method, there are a screen coating method, a gravure coating method, a reverse coating method and the like. The sheet is formed by a film forming method. As a film forming method,
Examples include resin extrusion laminate, heat laminate, dry laminate, and coating laminate.

When the surface protective layer is a printed film or a coating film, its thickness is preferably 30 × 10 ⁻³ mm or less. If it exceeds 30 × 10 ⁻³ mm, the film is hard to dry by the forming method by the printing method or the coating method, and the film forming efficiency becomes low. In this case, the surface protective layer may be made of a thermoplastic resin, a thermosetting resin, or an ionizing radiation curable resin. Examples of the thermoplastic resin include acrylic resin and polycarbonate resin. Examples of thermosetting resins include urethane resins and acrylic / polyol resins. When the decorative sheet is used as a transfer sheet, the surface protective layer also has a function of a release layer between the decorative sheet and the base sheet formed thereon. In this case, the material of the surface protective layer can be selected from polyacrylic resin, polyester resin and the like.

When the surface protective layer is a sheet, its thickness is preferably 30 × 10 ⁻³ mm or more. When the thickness of the surface protective layer is less than 30 × 10 ⁻³ mm, it is difficult to control the film thickness due to the film forming method. In this case, the material of the surface protective layer may be a thermoplastic resin. As the thermoplastic resin, acrylic resin, polycarbonate resin, polyamide resin, polyimide resin,
Polyester resin, olefin resin, urethane resin, etc. are available. The surface protective layer may be a laminated sheet or a copolymer sheet in which two or more layers are laminated.

The rubber elastic layer will be described. The rubber elastic layer is a layer formed for the purpose of dispersing the peeling stress throughout the decorative sheet so that the peeling stress is not concentrated on a portion where the interlayer adhesion is weak or where the intralayer cohesive force is weak. Is. The rubber elastic layer is a layer made of a resin having a 100% modulus of 0.1 to 25.5 × 10 ⁴ N / m 2. If the 100% modulus is less than 0.1, the elasticity becomes so strong that heat shrinkage occurs due to heat drying during the printing process, making it difficult to secure dimensional accuracy. On the other hand, when the 100% modulus exceeds 25.5 × 10 ⁴ N / m 2, the layer itself becomes hard and the flexibility is impaired, so that the rubber elasticity becomes insufficient and the effect of dispersing the peeling stress becomes low.
Further, when the decorative sheet is deformed into a predetermined three-dimensional shape in advance, the flexibility is impaired and the decorative layer is likely to crack. In addition, 100% modulus means 100% between the marked lines (grasping parts) in a fixed sample piece (length is 2
It is a value obtained by dividing the stress (peeling stress) at the time of extension to double (fold) by the strain (extended amount). The sample piece used is a resin sheet forming a rubber elastic layer formed into a sheet by an injection molding method.

The rubber elastic layer is preferably made of a resin such as a thermoplastic resin or a thermosetting resin. As a thermoplastic resin,
One-component curing type urethane resin and polyester resin are available. As the thermosetting resin, there are two-component curing type urethane resin and polyester resin. Further, it is preferable to use a thermoplastic or thermosetting resin elastomer or silicone resin selected from urethane resin, olefin resin, polyester resin, and styrene resin. The rubber elastic layer is on both the upper surface and the lower surface of the pattern layer including the metal layer,
Alternatively, it may be formed on either surface.

The rubber elastic layer may be a printed film, a coating film, or a sheet. The printed film is a film formed by a printing method. Printing methods include a gravure coating method, a roll coating method, a coating method such as a comma coating method, a gravure printing method, and a screen printing method. The coating film is a film formed by a coating method. As the coating method, there are a screen coating method, a gravure coating method, a reverse coating method and the like. The sheet is formed by a film forming method. As a film forming method,
Examples include resin extrusion laminate, heat laminate, dry laminate, and coating laminate.

When the rubber elastic layer is a printing film or a coating film, its thickness is preferably 1 to 250 × 10 ⁻³ mm. The reason is as follows. If it is less than 1 × 10 ⁻³ mm, the peeling stress becomes difficult to disperse. 25
If it exceeds 0 × 10 ⁻³ mm, blocking tends to occur when laminating during printing, and the base sheet tends to curl due to heat during printing and preforming.

When the rubber elastic layer is a sheet, its thickness is preferably 1 to 10 × 10 ⁻³ mm. The reason is as follows. If it is less than 1 × 10 ⁻³ mm, the elasticity is insufficient and it becomes difficult to reinforce the adhesion between the layers with the rubber elastic layer. When it exceeds 10 × 10 ⁻³ mm, the elasticity becomes large and the shrinkage of the heat causes the dimensional stability of the heating sheet to be impaired.

The ratio of the thickness of the rubber elastic layer to the thickness of the surface protective layer is as follows: rubber elastic layer / surface protective layer = 0.00
It is preferably 4 to 2.0. When this ratio is less than 0.004, the function of dispersing the peeling stress is insufficient and the surface protective layer peels off from the surface of the object to be decorated in the cross-cut test, pencil hardness test and peeling peeling test.
On the other hand, when it exceeds 2.0, the physical properties of the rubber elastic layer are stronger than those of the object to be decorated, and the surface hardness of the formed decorative layer or the decorative sheet is lowered. Further, the thickness ratio to the above range is more preferably in the range of rubber elastic layer / surface protective layer = 0.004 to 1.0. The basis is
This is because those having a cross-cut test evaluation of 10 and a surface hardness evaluation of O in Table 1 below were extracted.

Table 1 shows the correlation between the thickness ratio of the rubber elastic layer and the surface protective layer and the evaluation of the physical properties of the decorative member.

[0018]

[Table 1]

* As the test sample in Table 1, (1) of the following two types of decorative sheets is 100 × 1
A decorating member, which is placed in the cavity concave portion of a mold having a cavity concave portion having an area of 00 mm and a depth of 1 mm and injection molding an acrylic resin to integrate the decorating sheet on the surface of the decorated object, is used. I was there. (1) Thickness of polycarbonate resin 130 × 10
^On a base sheet (surface protection layer) of ^-3 mm, a rubber elastic layer made of urethane elastomer resin and having a thickness of 2 x 10 ^-3 mm, a metal thin film layer made of aluminum and having a thickness of 40 x 10 ^-6 mm, and vinyl acetate. 12 sheets of an adhesive layer having a thickness of 3 × 10 ⁻³ mm made of a vinyl copolymer resin
A decorative sheet cut into an area of 0 × 120 mm,
(2) Thickness 3 made of polyethylene terephthalate resin
A surface protective layer having a thickness of 2 × 10 ⁻³ mm made of an acrylic resin which also functions as a release layer, and a thickness 2 made of a urethane elastomer resin on a base sheet of 8 × 10 ⁻³ mm.
A sheet composed of a rubber elastic layer of × 10 ⁻³ mm, a metal thin film layer of indium having a thickness of 30 × 10 ⁻⁶ mm, and an adhesive layer of vinyl chloride / vinyl acetate copolymer resin having a thickness of 3 × 10 ⁻³ mm (transfer). A decorative sheet obtained by cutting the sheet) into an area of 120 × 120 mm. * The peeling peeling test method was based on the following method. -Sheet for decoration 2 that is integrally bonded to the surface of the object to be decorated 2
1 inch wide, with a cut that reaches the surface of the object to be decorated 3
(See FIG. 1).・ Using push-pull gauge 4 to the surface of the object to be decorated
Load of 5880N or less per minute at an angle of 0 degree and 10m
The decorative sheet 2 is pulled at a load speed of m / min, and the maximum load value between the initial peeling and the final peeling is measured (Fig. 1).
reference). * Pencil hardness test and cross-cut test conformed to JIS K-5400.

The pattern layer will be described. The pattern layer is a layer for decorating an object to be decorated. The pattern layer is usually formed as a printing layer. The printed layer may be formed using a coloring ink containing a binder such as a polyvinyl resin or a polyamide resin and a pigment or dye having an appropriate color as a colorant. The print layer may be formed by an ordinary printing method such as an offset printing method or a gravure printing method. The dry film thickness of the pattern layer is generally 1 to 100 × 10 ⁻³ mm. The pattern layer includes a metal layer. Examples of the metal layer include a metal thin film layer obtained by metal vapor deposition and a high-intensity metallic layer containing a metallic pigment such as silver paste. As the metal layer, there is a metal thin film layer formed by a vacuum deposition method, a sputtering method, an ion plating method, a plating method or the like. In this case, metals such as aluminum, nickel, gold, platinum, chromium, iron, copper, tin, indium, silver, titanium, lead, and zinc, and alloys or compounds thereof may be used properly according to the desired metallic luster color. . The metal thin film layer may be formed by stacking metal oxides having different refractive indexes such as zirconia and silicon in order to exert an optical interference effect. In addition, in order to improve the adhesion with other layers when providing the metal thin film layer,
It is preferable to provide a front anchor layer and a rear anchor layer. As a material for the front anchor layer and the rear anchor layer, it is preferable to use a two-component curable urethane resin, a thermosetting urethane resin, or the like. As a method for forming the front anchor layer and the rear anchor layer, there are a coating method such as a gravure coating method and a roll coating method, and a printing method such as a gravure coating method and a screen printing method. The film thickness of the metal thin film layer is generally 1 to 10 × 10 ⁻⁶ mm.

The adhesive layer is for adhering each of the above layers to the surface of the object to be decorated, and is preferably used when the picture layer has no adhesiveness. The material of the adhesive layer is a thermoplastic resin,
Examples include thermoplastic elastomer resins and thermosetting elastomer resins. More specifically, there are thermoplastic resins such as vinyl chloride / vinyl acetate copolymer resins and polycarbonates, or thermoplastic elastomer resins such as urethane resins and polyester resins. As a method of selecting the material of the adhesive layer, it is preferable to appropriately select a heat-sensitive or pressure-sensitive resin suitable for the material of the object to be decorated. For example, when the material to be decorated is polyacrylic resin, polyacrylic resin may be selected. Further, when the material to be decorated is a polyphenylene oxide resin or a polystyrene resin, a polyacrylic resin having an affinity with these resins may be selected. The adhesive layer may have a rubber elastic function. The adhesive layer may be transparent or translucent, and may be colored.

The adhesive layer may be a printed film, a coating film, or a sheet. The printed film is a film formed by a printing method. Printing methods include a gravure coating method, a roll coating method, a coating method such as a comma coating method, a gravure printing method, and a screen printing method.
The coating film is a film formed by a coating method. As the coating method, there are a screen coating method, a gravure coating method, a reverse coating method and the like. The sheet is formed by a film forming method. Examples of the film forming method include extrusion lamination of resin, heat lamination, dry lamination, and coating lamination.

When the adhesive layer is a printed film or a coating film,
The film thickness is preferably 1 to 30 × 10 ⁻³ mm. Film thickness is 1
If it is less than × 10 ⁻³ mm, the adhesive function when the decorative layer or the decorative sheet is integrated with the surface of the object to be decorated becomes insufficient. When the film thickness exceeds 30 × 10 ⁻³ mm, the efficiency of the film formation by drying becomes low in the forming method by the printing method.

When the adhesive layer is a sheet, its thickness is
30 to 500 × 10 ⁻³ mm is preferable. 30 × 10 thickness
If it is less than ^-3 mm, it is difficult to control the film thickness due to the film forming method, and it becomes difficult to handle it by the laminating method. 500 x 10 ^-3
If it exceeds mm, it takes a long time to heat the decorative sheet to an optimum state when it is deformed into a predetermined three-dimensional shape in advance, resulting in poor production efficiency. Further, when integrally bonding the decorative sheet to the surface of the object to be decorated, even if the role of the adhesive layer as the function of protecting the decorative layer from the heat of the molten resin is taken into consideration, no further thickness is required and the cost is reduced. Leads to up. Specific examples of the case where the adhesive layer is a sheet include polycarbonate resin, polyamide resin, polyimide resin, polyester resin, acrylic resin, olefin resin, urethane resin, A
A single layer sheet selected from BS resins may be used, or a laminated sheet or a copolymer sheet made of two or more kinds of resins selected from the above may be used.

The layers of the decorative member according to the present invention may be laminated in the following manner: surface protective layer / rubber elastic layer / pattern layer including metal layer / object to be decorated, surface protective layer / first rubber elastic layer / There is a pattern layer including a metal layer / second rubber elastic layer / adhesive layer / decorative object. Another layered structure is a surface protection layer / a pattern layer including a metal layer / a rubber elastic layer / an adhesive layer / a decorative object. Still another lamination mode is a surface protection layer / rubber elastic layer / picture layer including a metal layer / adhesive layer / decorative object. Examples of the object to be decorated include resin molded products, rubber products, metal products, wood products, glass products, ceramic products, or composite products made of various materials. These may be transparent, translucent or opaque. Further, the object to be decorated may be colored or uncolored. Examples of the resin that constitutes the resin-molded product of the object to be decorated include resins such as polystyrene resin and polyolefin resin. A composite resin to which a reinforcing material such as glass fiber or an inorganic filler is added can also be used. As a method of integrated bonding, a so-called transfer method in which the adhesive layer side of the decorative sheet is brought into close contact with the surface of the object to be decorated and then heated and adhered, or the object to be decorated is injection-molded in an injection mold during injection molding. There is a so-called simultaneous molding decoration method in which a decoration sheet is integrally bonded to a decoration. This decorative member may be used by integrally adhering it to another object to be decorated.

The decorative sheet according to the present invention may be laminated in the following manner: base sheet / surface protective layer / rubber elastic layer / picture layer including metal layer, base sheet / surface protective layer / first rubber. There is an elastic layer / pattern layer including a metal layer / second rubber elastic layer / adhesive layer. Another lamination mode is a base sheet / surface protection layer / picture layer including metal layer / rubber elastic layer / adhesive layer. As yet another lamination mode,
There is a base sheet / surface protective layer / rubber elastic layer / pattern layer including a metal layer / adhesive layer.

[0027]

Example 1 A surface protective layer made of an acrylic resin sheet having a thickness of 125 × 10 ⁻³ mm and a thickness of 50 × 10 with a 100% modulus of 0.049 × 10 ⁴ N / m 2.
After forming a rubber elastic layer made of a urethane resin sheet of ³ mm by thermal lamination so that the thickness ratio of (rubber elastic layer / surface protection layer) is 0.4, a metal made of aluminum is formed on the urethane resin sheet surface. A thin film layer is formed with a thickness of 40 × 10 ⁻⁶ mm by a vacuum vapor deposition method, and then an adhesive layer made of vinyl chloride vinyl acetate copolymer resin is formed by a gravure coating method to obtain a decorative sheet (insert sheet). It was This was placed in an injection molding die, and molten Bayer PC resin "Makrolon 2205" was injected and cooled and solidified to obtain a decorative member (1) having metallic luster. (Comparative Example 1) An anchor layer made of acrylic polyol resin was formed on a surface protective layer made of an acrylic resin sheet having a thickness of 125 × 10 ⁻³ mm, and then a metal thin film layer made of aluminum was formed by a vacuum deposition method to a thickness of 40. × 10
^A decorative sheet having a metallic luster was obtained by forming the adhesive layer made of ^-6 mm and then forming an adhesive layer made of a vinyl chloride vinyl acetate copolymer resin by a gravure coating method. This was placed in an injection molding die, and the molten Bayer PC resin "Makrolon 2205" was injected and cooled and solidified to obtain a decorative member (2) having metallic luster.

Example 2 A melamine coat layer having a thickness of 1 × 10 ⁻³ mm was formed and subjected to a release treatment, and a thickness of 38 × 1.
0 ^-3 consisting ^mm polyethylene terephthalate resin film made of the base sheet on the acrylic resin having a thickness of 5
And a surface protective layer having a peeling function of 10 ⁻³ mm and 10
After forming each of the first rubber elastic layers having a thickness of 2 × 10 ⁻³ mm made of a urethane elastomer resin of 0% modulus = 0.176 × 10 ⁴ N / m 2 by a gravure coating method,
A metal thin film layer made of indium was formed with a thickness of 40 × 10 ⁻⁶ mm by a vacuum deposition method, and then made of a urethane elastomer resin having a 100% modulus = 0.1176 × 10 ⁴ N / m 2 and having a thickness of 2 × 10 ⁻³ mm. A second rubber elastic layer is formed, and then an adhesive layer made of vinyl chloride vinyl acetate copolymer resin is formed by a gravure coating method. As a result, (first rubber elastic layer + second rubber elastic layer) / surface protection layer A decorative sheet (transfer sheet) having a thickness ratio of 0.8 was obtained. This is placed in the injection molding die, the molten acrylic resin is injected and cooled and solidified, after the mold is opened, the base sheet is peeled from the decorative member, and the decorative layer with metallic luster is integrally bonded on the surface. A decorative member (3) exhibiting the metallic luster thus obtained was obtained. Comparative Example 2 A base material sheet made of a polyethylene terephthalate resin film having a thickness of 38 × 10 ⁻³ mm and having a thickness of 1 × 10 ⁻³ mm and subjected to a mold release treatment is formed of an acrylic resin. Thickness 5 x 10 ^-3 m
m protective layer having a peeling function and a thickness of 2 × 10 ⁻³
mm of an acrylic polyol resin is formed by a gravure coating method, and then a metal thin film layer of indium is formed by a vacuum deposition method to have a thickness of 40 × 10 ⁻⁶ mm.
Then, an adhesive layer made of vinyl chloride-vinyl acetate copolymer resin was formed by a gravure coating method to obtain a decorative sheet (transfer sheet). This is placed in the injection molding die, the molten acrylic resin is injected and cooled and solidified, after the mold is opened, the base sheet is peeled from the decorative member, and the decorative layer with metallic luster is integrally bonded on the surface. A decorative member (4) exhibiting the metallic luster thus obtained was obtained.

Example 3 A surface protection layer made of an olefin resin having a thickness of 100 × 10 ⁻³ mm and a urethane elastomer resin having a 100% modulus of 0.0686 × 10 ⁴ N / m 2 having a thickness of 20 × 10 ⁻³ mm. First rubber elastic layer, high brightness metallic layer formed by mixing aluminum metal powder with urethane resin, 100% modulus 0.0686
A second rubber elastic layer having a thickness of 10 × 10 ⁻³ mm made of a urethane elastomer resin of × 10 ⁴ N / m 2 and an adhesive layer having a thickness of 3 × 10 ⁻³ mm made of a chlorinated polypropylene resin are sequentially laminated by a roll coating method. After doing, thickness 1
A colored film made of olefin resin having a size of 00 × 10 ⁻⁴ mm was integrated by a thermal laminating method, and a thickness ratio of (first rubber elastic layer + second rubber elastic layer) / surface protection layer = 0.
A high-intensity metallic decorating sheet of No. 3 was obtained. A decorative sheet was adhered to the surface of a preformed object to be decorated through an adhesive layer made of an epoxy resin to obtain a decorative member (1) exhibiting high brightness metallic. (Comparative Example 3) A surface protection layer made of an olefin resin having a thickness of 100 × 10 ⁻³ mm, a high-intensity metallic layer made by mixing aluminum metal powder with a urethane resin, and an adhesive layer made of a chlorinated polypropylene resin were sequentially roll-coated. Then, the colored olefin resin film having a thickness of 100 × 10 ⁻³ mm was integrated by a thermal lamination method to obtain a doubling sheet exhibiting a high-luminance metallic tone. A doubling sheet coated with an adhesive made of an epoxy resin is fixed to the surface of a preformed object to be decorated, and a decorative member (2) exhibiting high brightness metallic
Got A doubling sheet is a transparent sheet / pattern layer /
It is a general name for a laminated sheet for building materials, which is formed by sequentially stacking colored sheets.

Example 4 A surface protection layer made of an acrylic resin having a thickness of 50 × 10 ⁻³ mm and a urethane elastomer resin having a 100% modulus of 0.0980 × 10 ⁴ N / m 2 having a thickness of 5 × 10 ⁻³ mm were used. After forming the first rubber elastic layer by a gravure coating method, a metal thin film layer made of aluminum and having a thickness of 40 × 10 ⁻⁶ mm is formed by a vacuum deposition method, and then 100% modulus 0.0980.
A second rubber elastic layer having a thickness of 5 × 10 ⁻³ mm made of a urethane elastomer resin of × 10 ⁴ N / m 2 was formed, and then an adhesive layer made of a vinyl chloride vinyl acetate copolymer resin was sequentially laminated by a roll coating method. After doing, thickness 500
A 10 to ³ mm colored ABS resin sheet is integrated by a thermal laminating method (first rubber elastic layer + second rubber elastic layer) / surface protection layer thickness ratio = 0.2. I got a backing sheet. After this backing sheet is deformed into a predetermined three-dimensional shape in advance, it is placed in a mold having a cavity shape corresponding to the three-dimensional shape, and after the mold is clamped, injection molding is performed using a molten resin made of acrylic resin, and the surface of the object to be decorated. A decorative member (5) having a metallic luster, in which a metallic luster-like backing sheet was integrally bonded, was obtained. The backing sheet is a general name of a laminated sheet used as an interior material for automobiles, which is formed by sequentially laminating a transparent sheet / a pattern layer / a colored sheet. (Comparative Example 4) An anchor layer made of a urethane resin was formed on a surface protective layer made of an acrylic resin having a thickness of 50 x 10 ^-3 mm by a gravure coating method, and then an aluminum layer having a thickness of 40 x 10 ^-6 mm was formed by a vacuum deposition method. After forming a metal thin film layer consisting of, and then forming an adhesive layer consisting of vinyl chloride vinyl acetate copolymer resin by roll coating method,
A colored ABS resin sheet having a thickness of 500 × 10 ⁻³ mm was integrated by a thermal lamination method to obtain a metallic glossy backing sheet. After preliminarily transforming this into a predetermined three-dimensional shape, it is placed in a mold having a cavity shape that corresponds to the three-dimensional shape, and after mold clamping, injection molding is performed using a molten resin made of acrylic resin, and the surface of the object to be decorated has a metallic luster. A decorative member (6) having a metallic backing sheet and having a metallic luster was obtained.

Table 2 is a comparison table of the physical property evaluations of the decorative members obtained in Examples 1 to 4 and the corresponding physical property evaluations of the decorative members obtained in Comparative Examples 1 to 4.

[0032]

[Table 2]

According to Table 2, in the decorative member, a peeling phenomenon occurs between the surface protective layer and the pattern layer in the decorative sheet, between the pattern layer and the adhesive layer, or inside the pattern layer. It was found in all the examples and comparative examples that it was necessary to apply a larger force to the sheet than in the comparative example having no rubber elastic layer.

[0034]

The decorative member and the decorative sheet of the present invention are
The decorative layer is a surface protective layer having a thickness of 1 to 250 × 10 ⁻³ m,
100% modulus is 0.1 to 25.5 × 10 ⁴ N / m2
Since it has a rubber elastic layer made of resin and a pattern layer, even if the pattern layer includes a metal layer, when the decorative member is incorporated into the finished product as a part, the surface protection from the pattern layer at the end The layers and adhesive layers do not easily come off. That is, by having the rubber elastic layer, it is possible to prevent the peeling stress applied to the decorative member from concentrating on a portion where the interlayer adhesion force or the intra-layer cohesive force is weakened.

[Brief description of drawings]

FIG. 1 is a perspective view showing a state in which peeling strength is measured using the decorative sheet of the present invention.

[Explanation of symbols]

1 Decorative items 2 Decoration sheet 3 cuts 4 push-pull gauge

Claims (9)

(57) [Claims] 1. A decorative member having a decorative layer integrally bonded to the surface of a decorated object, wherein the decorative layer has a thickness of 1 to 250 ×.
10 ^-3 mm surface protective layer, 100% modulus is 0.
A decorative member having a rubber elastic layer made of a resin of 1 to 25.5 × 10 ⁴ N / m ² and a pattern layer, wherein the pattern layer includes a metal layer. 2. The ratio of the thickness of the rubber elastic layer to the thickness of the surface protective layer is such that rubber elastic layer / surface protective layer = 0.004 to 2.0.
The decorative member according to claim 1, which is 3. The rubber elastic layer contains a thermosetting elastomer resin or a thermoplastic elastomer resin.
Or the decorative member according to 2. 4. A 100% modulus is 0.1 on a surface protective layer made of a sheet having a thickness of 30 to 250 × 10 ⁻³ mm.
A decorative sheet having a rubber elastic layer made of a resin of 25.5 × 10 ⁴ N / m 2 and a pattern layer, wherein the pattern layer includes a metal layer. 5. The ratio of the thickness of the rubber elastic layer to the thickness of the surface protective layer is such that rubber elastic layer / surface protective layer = 0.004 to 2.0.
The decorative sheet according to claim 4, wherein 6. The rubber elastic layer contains a thermosetting elastomer resin or a thermoplastic elastomer resin.
Alternatively, the decorative sheet according to item 5. 7. A substrate sheet which is peeled off after the decorative layer is integrally adhered to the surface of the object to be decorated and has a thickness of 1 to 250 × 1.
0 ^-3 mm surface protective layer of 100% modulus 0.1
A decorative sheet having a rubber elastic layer made of a resin of 25.5 × 10 ⁴ N / m 2 and a decorative layer having a pattern layer, wherein the decorative layer includes a metal layer. 8. The ratio of the thickness of the rubber elastic layer to the thickness of the surface protective layer is such that rubber elastic layer / surface protective layer = 0.004 to 2.0.
The decorative sheet according to claim 7, wherein 9. The rubber elastic layer contains a thermosetting elastomer resin or a thermoplastic elastomer resin.
Alternatively, the decorative sheet according to item 8.