JP3063411B2 - Composite seat for vehicle interior - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle interior composite sheet suitable as an interior material for a railway vehicle.

[0002]

2. Description of the Related Art In general, the following three main types of interior materials for railway vehicles are roughly classified.

[0003] 1. 1.6 decorative board for vehicles specified by JIS K6903 “thermosetting resin decorative board” (symbol L
A melamine resin decorative board based on an aluminum plate having a thickness of 1.2 mm as described in D-MC 1.6).

[0004] 2. FRP molded product determined to be "non-flammable" in the material combustion test for railway vehicles by the Ministry of Transport's Road Safety and Pollution Research Institute.

[0005] 3. A composite material that has been determined to be "nonflammable" in a railway vehicle material combustion test at the Ministry of Transport's Road Safety and Pollution Research Institute, with a vinyl chloride resin-based decorative sheet with a pressure-sensitive adhesive bonded to an aluminum plate.

[0006]

In recent years, railway vehicles have been
As seen in the Shinkansen of each R company, there is a need to reduce the weight of materials used and to improve the disposability of discarded materials when replacing used materials in order to upgrade the interior design and respond to higher speeds. Is getting higher.

[0007] In comparison with the above requirements, the advantages and disadvantages of various conventional vehicle interior materials are compared as follows.

First, a decorative melamine resin plate made of an aluminum plate as a base material can be easily provided with a color pattern and can be easily embossed on the surface, but cannot form a three-dimensional curved surface. As a result, there is a limit to the demand for higher-grade designs. However, there is an advantage that the aluminum plate is lightweight and the aluminum plate can be collected and recycled in terms of disposal.

Next, the FRP molded product can be easily formed into a three-dimensional curved surface shape, but has the drawback that it is difficult to form a color pattern, surface embossing, and the like, and it is not easy to dispose.

In addition, the composite material of the vinyl chloride resin decorative sheet and the aluminum plate is easy to give a color pattern and a surface emboss, and is easy to draw and form a three-dimensional curved surface, and is light in weight. In terms of disposal, there is an advantage that aluminum plates can be collected and recycled.

However, when a composite material composed of a vinyl chloride resin decorative sheet and an aluminum plate is used as an interior material for a railway vehicle, to reduce the weight of the material used in order to cope with an increase in the speed of the railway vehicle, high-speed operation is required. In order to increase the vibration of the inside vehicle, measures against noise by increasing the vibration have become an issue.

The present invention provides a composite sheet for a vehicle interior suitable for use as a railway vehicle by making use of the advantages of a composite material in which a decorative sheet of a vinyl chloride resin and an aluminum plate are bonded to each other and further imparting an anti-vibration function. Aim.

[0013]

In order to achieve the above-mentioned object, a composite sheet for vehicle interior according to the present invention has a decorative sheet with a pressure-sensitive adhesive pressure-bonded to the surface of an aluminum plate and an aluminum sheet. A vibration damping plate with a pressure-sensitive adhesive is pressure-bonded to the back surface of the plate.

Further, as the aluminum plate, a corrosion-resistant aluminum plate specified in JIS standard H4000 "Aluminum plate and aluminum alloy plate and strip" or an aluminum plate similar thereto is used as a base material. The foreign substances and oils and fats adhering to both surfaces of the aluminum plate are removed by washing using an industrial thinner, an organic solvent, a neutral detergent or the like.

Further, the decorative sheet with a synthetic resin pressure-sensitive adhesive to be attached to one surface of the aluminum plate is pressure-bonded by a roll pressure bonding method.

The above-mentioned decorative sheet with a synthetic resin pressure-sensitive adhesive is obtained by printing a color pattern on one surface of a vinyl chloride resin sheet colored with a pigment or a single-layered vinyl chloride resin sheet colored with a pigment, and then transparent. A two-layer vinyl chloride resin sheet heat-sealed with a flexible vinyl chloride resin sheet, or a reverse side of a vinyl chloride resin sheet having a fluororesin coating formed on the surface of these vinyl chloride resin sheets, It is coated with a plastic acrylic resin pressure-sensitive adhesive coating.

After a decorative sheet with a synthetic resin pressure-sensitive adhesive is pressure-bonded to one surface of the aluminum plate, the vibration-damping plate to be stuck on the opposite side of the aluminum plate is a vibration-damping plate with a synthetic resin pressure-sensitive adhesive. Is pressure-bonded to one surface of an aluminum plate by a roll compression method.

Here, in order to obtain a three-dimensionally curved composite sheet for a vehicle interior, a decorative sheet with a synthetic resin pressure-sensitive adhesive is pressure-bonded to one surface of an aluminum plate, and then a desired sheet is formed. Using a metal mold having a shape and a press forming machine, draw forming is performed to form a three-dimensional curved surface shape. Thereafter, a vibration damping plate with a synthetic resin pressure-sensitive adhesive cut to an appropriate size on the opposite back surface is pressure-bonded using a hand roller to produce a three-dimensional curved surface-shaped composite sheet for vehicle interior. it can.

[0019]

As is clear from the above configuration, the composite sheet for vehicle interior according to the present invention is a material combustion test for railway vehicles of the Japan Railway Rolling Stock Machinery Association, which is a test agency of the Traffic Safety and Pollution Research Institute of the Ministry of Transport. Was determined to be "non-flammable".

Further, as the damping plate, a vinyl chloride resin plate and an asphalt plate are preferable. By using these damping plates, the vibration damping rate becomes significantly larger than when no damping plate is used.

[0021]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an embodiment of a composite sheet for vehicle interior according to the present invention will be described in detail with reference to FIG.

First, the front and back surfaces of a 1.2 mm thick aluminum plate 6 having a symbol A1100P and a temper 0 specified by JIS H4000 are wiped with a cloth impregnated with methyl ethyl ketone to remove oils and fats and foreign substances. Used as a substrate.

Next, a thickness of 0.2 mm and a plasticizer content of 23
The surface of the vinyl chloride resin sheet 4 colored with the pigment of the parts was printed with an abstract color pattern using a cellulose acetate-based ink 3 in a three-color overlapping manner using a gravure printing machine.

On this surface, a thickness of 0.0
12mm vinyl fluoride resin film (50AM20L
H) was bonded by heating and pressing using an adhesive 2 composed of a saturated polyester resin and an isocyanate resin using a roll laminator to form a fluororesin coating 1.

At this time, the surface of the vinyl fluoride resin film was heated to a temperature of 120 ° C., and was pressed by a pressure roll having a surface orange-pink skin-like unevenness to give a surface orange-pink skin emboss.

On the back surface of the vinyl chloride resin sheet 4, an aluminum-based resin pressure-sensitive adhesive 5 was applied, and the dilution solvent was volatilized and dried by heating and drying.

The decorative sheet with a pressure-sensitive adhesive manufactured as described above was manufactured by Hitachi Chemical Co., Ltd. under the trade name "Fluor".
It is manufactured and sold by

After this decorative sheet with a pressure-sensitive adhesive is pressure-bonded to one surface of the aluminum plate 6 by a roll compression method, A and B2
The composite sheet for vehicle interior according to the present invention was obtained by pressure-bonding the various types of vibration damping plates 8 by a roll pressure bonding method.

A. Asphalt damping plate 8 made of Hitachi Chemical Co., Ltd. and having a thickness of 3.2 mm mainly composed of asphalt and calcium carbonate and having a coating film 7 of an acrylic resin pressure-sensitive adhesive applied on one surface.

B. A board made of Central Glass Co., Ltd., a vinyl chloride resin and a mica having a thickness of 3.0 mm and having a coating film 7 of an acrylic resin pressure-sensitive adhesive on one surface. .

Table 1 shows the characteristic test results of the composite sheet for vehicle interior obtained by the above method.

[0032]

[Table 1]

[0033]

As described above, the composite sheet for vehicle interior according to the present invention has a structure in which the vibration damping plate is attached to the back surface of the composite sheet including the decorative sheet and the aluminum plate. Has an effect. (1) The composite material consisting of a decorative sheet and an aluminum plate makes it easy to apply and form a color pattern and a surface embossment, and can also easily perform a three-dimensional curved surface drawing process.
In addition, there is an effect that the weight is reduced and the disposal property is excellent. (2) Since the vibration damping material is stuck to the back surface of the composite material of the decorative sheet and the aluminum plate, the vibration damping rate by the vibration damping material is remarkably improved, so that it is particularly suitable as an interior material for a railway vehicle.

[Brief description of the drawings]

FIG. 1 is a sectional view showing a configuration of a composite sheet for vehicle interior showing a first embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Fluororesin coating 2 Adhesive 3 Printing ink 4 Vinyl chloride resin sheet 5 Pressure-sensitive adhesive 6 Aluminum plate 7 Pressure-sensitive adhesive 8 Damping plate

──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Isao Takahashi 172-1, Kajikubo, Yuki-shi, Ibaraki Pref. Hitachi Chemical Co., Ltd. Minami-Yuki Plant (56) References 58) Field surveyed (Int.Cl. ⁷ , DB name) B32B 1/00-35/00 B60R 13/02 B61D 17/18

Claims (6)

(57) [Claims] A decorative sheet with a pressure-sensitive adhesive is pressure-bonded to the surface of an aluminum plate, and a vibration damping plate with a pressure-sensitive adhesive is pressure-bonded to the back surface of the aluminum plate. Composite seat for vehicle interior. 2. The aluminum plate is JIS standard H400.
0 "Aluminum plate and aluminum alloy plate and strip"
The vehicle interior composite sheet according to claim 1, wherein the composite sheet is made of a corrosion-resistant aluminum plate or an aluminum plate similar thereto. 3. The composite for vehicle interior according to claim 1, wherein a vinyl chloride resin sheet provided with a color or a color pattern is attached to the surface side of the decorative sheet via a pressure-sensitive adhesive. Sheet. 4. The composite sheet according to claim 1, wherein the damping plate is formed of a vinyl chloride resin plate. 5. The vehicle interior composite sheet according to claim 1, wherein the damping plate is an asphalt plate. 6. The composite sheet for vehicle interior according to claim 1, wherein a fluororesin coating is adhered to a surface side of the decorative sheet.