JPH0623742U - Composite sheet - Google Patents

Abstract

(57) [Summary] (Modified) [Purpose] In the case of a skin material in which a foam sheet is adhered to the back side of the skin, when the core material is integrally molded on the foam sheet surface side, the cushioning property is not impaired and the surface layer Provided is a composite sheet that can be used as a skin material with flocked decoration. [Structure] A composite sheet comprising an olefin foam sheet 14 and an olefin film 13 laminated on one surface thereof. A composite sheet characterized by laminating an olefinic film 13 on one surface of an olefinic foam sheet 14, and flocking a resin pile 20 on the other surface via an adhesive agent 18.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a composite seat structure that is advantageous for use as a seat, for example, for the interior of automobiles.

[0002]

[Prior art]

 For example, a conventional composite sheet used as a skin of an instrument panel installed in the interior of an automobile or a lining sheet of an automobile door has a structure as shown in FIG. That is, reference numeral 1 is a skin material used for molding an instrument panel, for example, and the skin material 1 is a resin sheet or cloth 2 made of vinyl chloride, ABS resin, thermoplastic elastomer or the like. After the olefin foam sheet (eg Toray Pef, a product of Toray) 3 is adhered to the back surface with an appropriate adhesive or after the joining surface between the skin 2 and the olefin foam sheet 3 is melted by using a heating burner. The composite sheet (laminate sheet) is produced by an adhesive means such as pressure-bonding them.

[0003]

[Problems to be solved by the device]

 However, in the skin material 1 having such a conventional structure, when the skin material 1 is used as, for example, the skin material 1 when molding an instrument panel, that is, the skin material 1 is used by the skin material 1. A skin that has a shape compatible with the panel is first formed by vacuum forming means, and then this first formed skin is set in the cavity mold of the instrument panel molding die, and then the cavity mold is closed by the core die. Then, when a polypropylene resin, which is the core material of the instrument panel, is press-fitted between the skin and the core mold to secondarily mold the instrument panel having the core material integrated with the skin, the core During the molding of the material, that is, during the secondary molding, the melting temperature of polypropylene (approx. Since the sheet 3 acts directly, the foaming on the contact surface of the foamed sheet 3 with the core material is crushed by the heating at about 200 ° C., and the bulkiness (sheet thickness) of the foamed sheet is reduced. However, there is a problem that the cushioning property of the foamed sheet 3 is reduced (damaged) to, for example, 2/3.

[0004]

[Means for Solving the Problems]

 The present invention has been made by paying attention to such a conventional defect. In the skin material 1 formed by adhering the foam sheet 3 to the back side of the skin 2, the back surface of the skin material 1, that is, the foam sheet 3 surface is thermally insulated. When the sheets are laminated and, for example, the core material of the instrument panel is integrally molded on the back side of the skin material 1, the core material melting temperature is made difficult to conduct heat to the foam sheet 3, and the cushioning property of the foam sheet 3 is improved. Another object of the present invention is to provide a composite sheet that can be used as a skin material in which the surface layer 2 is flocked and decorated without damage to the skin.

[0005]

【Example】

 Hereinafter, the present invention will be described in detail with reference to the embodiments shown in the drawings.

First, production of the composite sheet of this example will be described.

In FIG. 2, reference numeral 11 denotes a resin extruder, and the resin extruder 11 allows a thermoplastic elastomer to be melted from a T-shaped die 12 into a film in a molten state, for example, 0. The heat resistant film 13 having a thickness of 2 to 0.3 mm is extruded. Reference numeral 14 denotes an olefin-based foamed sheet formed by another molding process, for example. The foamed sheet 14 is superposed on the heat-resistant film 13 in the molten state, and further subjected to a pressure applied by a pressure roll 15. Then, the foamed sheet 14 is pressure-bonded onto the melted film 13 to form the two-layer sheet 16.

The two-layer sheet 16 thus obtained is wound on one roll and then sent to the secondary step shown in FIG. In this secondary step, the surface of the foamed sheet 14 of the two-layer sheet 16 is subjected to flocking treatment, and the surface of the foamed sheet 14 of the two-layer sheet 16 to be fed is coated with the adhesive 18 by the coating roll 17. .

The two-layer sheet 16 coated with the adhesive 18 passes through the heating zone 19 to volatilize the solvent of the adhesive 18, and then the resin pile 20 that also has an electric charge adheres to it. The flocked sheet 21 is formed by adhering and adhering to the agent 18 in a standing state.

The flocked sheet 21 thus continuously formed is cut into a predetermined length (width) by a cutter 22 to obtain a composite sheet 23 having a heat shielding effect.

As described above, since the composite sheet 23 according to the present embodiment is obtained by laminating the olefin film 13 on one side of the foamed sheet 14, the olefin film 13 is laminated to the foamed sheet 14. Since the heat conductivity of the heat is reduced, that is, a heat shield effect occurs, the composite sheet 23 is set in, for example, a molding die of an instrument panel, and thereafter, an instrument panel core integrated with the composite sheet 23 is formed. When injection molding a material, even if the resin melting temperature (about 200 ° C.) of the molding of the core material acts on the composite sheet 23, heat conduction to the foamed sheet 14 is suppressed by the heat shielding effect of the olefin film 13. Therefore, since the foamed sheet 14 is not melted by heat, the cushioning property of the foamed sheet 14 can be prevented from being destroyed.

Further, as described above, since the foaming portion of the foamed sheet is not damaged by the heat shielding effect of the olefinic film 13, only a high-magnification foamed sheet, for example, a sheet up to about 15 times foamed can be used conventionally. However, it is also possible to use a sheet that is about 20 to 25 times as foamed, and a product with excellent cushioning properties can be obtained.

Further, the surface of the composite sheet 23 of the present embodiment is flocked, and since this flocking is fixed via the adhesive 18, the adhesive 18 prevents the foamed sheet 14 from becoming brittle. However, the durability can be improved.

Further, by applying the flock, the cost is lower than that of the conventional cloth-clad sheet and the design effect is improved.

Furthermore, by using a mixture of two or more types of resin piles 20 to be flocked, it is possible to prevent cracking and hair fall and obtain a molded article with excellent appearance. You can

[0016]

[Effect of device]

 As described above, according to the present invention, the olefin film 13 is laminated on one side of the olefin foam sheet 14, or the olefin film 13 is laminated on one side of the olefin foam sheet 14 and the adhesive is applied on the other side. Since it is a composite sheet in which the resin pile 20 is flocked via 18, the heat conduction to the foamed sheet 14 is caused by the heat shielding effect of the olefin film 13 even if it acts on the composite sheet 23. Is suppressed, and therefore the foamed sheet 14 is not melted by heat, so that the cushioning property of the foamed sheet 14 can be prevented from being destroyed.

As described above, since the foaming portion of the foamed sheet is not damaged by the heat shielding effect of the olefinic film 13, only a high-magnification foamed sheet, for example, a sheet up to about 15 times foamed can be conventionally used. However, it is also possible to use a sheet that is about 20 to 25 times as foamed, and a product with excellent cushioning properties can be obtained. Further, according to the composite sheet of the present invention, the flocking applied to the surface of the composite sheet is fixed through the adhesive 18, so that the adhesive 18 prevents the foamed sheet 14 from becoming brittle and has a high durability. Can be improved.

In addition, by applying the flock, the cost is lower and the design effect is improved as compared with the conventional upholstered sheet.

Furthermore, by using a mixture of two or more resin piles 20 to be flocked, it is possible to prevent cracking and hair fall and obtain a molded product having an excellent appearance. It is possible to obtain effects such as being able to.

[Brief description of drawings]

FIG. 1 is an explanatory view showing a conventional composite sheet.

FIG. 2 is an explanatory diagram of a composite sheet manufacturing process according to an embodiment of the present invention.

FIG. 3 is an explanatory view showing a process of flocking a composite sheet according to an embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 11 ... Resin extruder 12 ... T-type die 13 ... Heat resistant film 14 ... Foaming sheet 15 ... Pressure roll 16 ... Two-layer sheet 17 ... Coating roll 18 ... Adhesive 19 ... Heating zone 20 ... Resin pile 21 ... Flocking sheet 22 … Cutter 23… Composite sheet

Claims (2)

[Scope of utility model registration request] 1. A composite sheet comprising an olefin foam sheet (14) and an olefin film (13) laminated on one surface thereof. 2. An olefin-based foam sheet (14) is laminated with an olefin-based film (13) on one side, and a resin pile (20) is flocked on the other side via an adhesive (18). And composite sheet.