JPH065888Y2 - Flame-retardant interior composite sheet - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a flame-retardant composite sheet useful for interior, floor, or interior of vehicles, furniture, and the like.

[Conventional technology]

Conventionally, as an interior, floor or interior seat,
Various types are manufactured and sold, but most of them are flammable and easily burn the fire and spread the fire, which is not preferable for disaster prevention. On the other hand, for fire and disaster prevention, a film or sheet made of a flame-retardant polymer represented by polyvinyl chloride (hereinafter abbreviated as PVC) and various cloths (woven fabrics)
Laminated with a flame-retardant paper, cloth or other base fabric and laminated to each other are known, and woven fabrics and carpets are known.The conventional materials are thermoplastic and generally flame-retardant but easily melted. Since it has poor heat resistance and melts at about 200-300 ° C or lower, for example, when an ignited cigarette falls on these materials, it easily melts and forms holes, and the inside of wall materials and floor materials to which these materials are applied. It was not possible to avoid the risk of causing a fire (burning) to the combustible materials such as the filling materials, such as plates, cotton, felts, and foams, and causing a fire.

[Problems to be solved by the device]

The purpose of the present invention is to prevent fire from being melted by the fire of cigarettes to form pores and spread to the flammable filling material, which has fire and fire resistance, and is excellent in appearance, texture, feel, etc. Another object of the present invention is to provide a flame-retardant composite sheet which has a decorative property and is useful as an interior material.

[Means for Solving the Problems]

The flame-retardant interior composite sheet (hereinafter referred to as the composite sheet) of the present invention comprises a covering material A, an infusible and heat-resistant film B and a base cloth C, which are in the order of A / B / C. And has a composite sheet structure laminated with.

The figure is a schematic cross-sectional view showing one embodiment of such a composite sheet of the present invention. As shown in the figure, the composite sheet 1 of the present invention
Is a composite sheet in which a covering material A2 including a flocked layer, a heat resistant film B3, and a base cloth C4 are laminated and integrated in the order of A / B / C.

The covering material A constituting the composite sheet of the present invention is not particularly limited, and various knitted fabrics, non-woven fabrics, papers, leathers and the like used as the covering material can all be used. . Further, it may be a flocked layer formed on the heat-resistant film surface illustrated in the figure.

Of course, flame-retardant materials can be used for these covering materials, and PVC, polyvinyl chloride / polyvinylidene chloride copolymer, and fluorine-based resins typified by polytetrafluoroethylene can be used. It may be processed (impregnated, coated or laminated) with a flame-retardant resin composition containing a flame-retardant resin or a flame retardant.

As the heat resistant film B, there are organic polymers having a property of carbonizing at high temperature, preferably at least 500 ° C. or higher, for example, aromatic polyamide (aramid), polyimide, polyamide imide, and preferably aromatic polyamide. A film or a polyimide film is preferable.

The heat-resistant film B preferably has a thickness of 6 μ to 100 μ in view of flexibility or flexibility of the composite sheet of the present invention. If it is too thin, it is not preferable in terms of heat resistance, heat insulation and strength.

As the base cloth C, depending on the use and product purpose of the composite sheet of the present invention, volume feeling, elasticity in the thickness direction, heat insulation /
A material that can impart properties such as heat retention and soundproofing is appropriately selected and used. For example, as a wall material, a ceiling material, or an automobile interior material that is required to have heat insulation, soundproofing, and drip-proof properties, it is preferable to use a foam, and for interiors such as wall surfaces and floor surfaces, a knitted fabric is used as a base fabric C. It is good to say In addition to these knitted fabrics and foams, non-woven fabric, paper and the like can be used. Further, the base cloth C may be a flame-retardant fiber or a base cloth imparted with flame retardancy by post-processing.

In the present invention, it is important that the heat resistant film B is laminated between the facing material A and the base cloth C. That is, according to the present invention, by covering the heat resistant film B with the covering material A,
The composite sheet of the present invention can be given various decorative properties to remarkably enhance the appearance and texture of the product. Moreover, since the heat-resistant film is infusible and has excellent heat resistance, it has a function of preventing fire from burning into the base fabric layer. Even if the covering material is flammable, this heat-resistant film The layers can impart fireproofness and disaster prevention properties to the composite sheet itself, and can also impart heat insulation properties (heat insulation properties).

In the composite sheet of the present invention, depending on the type of the base cloth C, a non-combustible and heat insulating material such as metal foil, slate, asbestos, or ceramic material is interposed between the base cloth C and the heat resistant film B. Thus, it is possible to impart electromagnetic wave shielding properties and heat insulation / heat retention properties.

As the adhesive applied to the production of the composite sheet of the present invention, various adhesives can be used depending on the type and combination of the covering material, the base material and the heat-resistant film, and may be selected appropriately. It is preferable to have flexibility and excellent heat resistance.

When the flexibility of the adhesive is insufficient, it is possible to secure the flexibility as a composite sheet by reducing the amount used or by applying the adhesive in a dot-like or linear manner. .

Examples of such adhesives include reactive or self-crosslinking polyacrylic ester adhesives, thermosetting urethane adhesives, epoxy adhesives, polyimide adhesives and polyamides with excellent heat resistance. Examples thereof include imide adhesives. Further, a flame retardant adhesive may be used to further improve flame retardancy and fire resistance.

In this case, the thickness of the adhesive layer should be as thin as possible in order to maintain the flexibility of the sheet-shaped substrate of the present invention, for example, several μ or less, preferably 1 to 2 μ or less.

Furthermore, on the heat-resistant film B side of the composite sheet of the present invention,
A stretched void film may be laminated in order to form an uneven pattern without damaging the film.

Examples of the stretched void film include synthetic resins such as polyolefin (polypropylene, ethylene-propylene copolymer, etc.), polyester, polyamide, polyvinyl chloride and the like, calcium carbonate, magnesium carbonate, alumina, aluminum silicate, kaolin, kaolinite, talc, There is a film obtained from a resin containing inorganic fine particles (hereinafter referred to as filler) such as clay, diatomaceous earth, dolomite, titanium oxide, magnesium oxide, and zeolite, in which a large number of voids are formed inside by stretching.

〔Example〕

 Hereinafter, the present invention will be described in more detail with reference to examples.

Example A non-woven fabric made of polyester fiber “Sontara” 40 g / m ² ) (base cloth C) made of polyester fiber is attached to one side of a polyimide film (heat resistant film B) made by DuPont with a polyurethane adhesive. (Seika Bond "E260 / C26 manufactured by Dainichiseika Kogyo Co., Ltd.) was used for joining and laminating, and a commercially available cloth (covering material A) was attached to the other surface of this polyimide film to prepare a composite sheet.

Burned tobacco ash was dropped on the fabric surface of this composite sheet, and the burning state was observed. As a result, the cloth around the position where the cigarette fire dropped burned, but the polyester fiber non-woven fabric (base cloth C) did not spread the fire and self-extinguished.

[Effect of device]

However, according to the present invention, various kinds of known covering materials such as knitted woven fabrics, non-woven fabrics, papers, etc. can be used without being limited to the covering materials having flame retardancy. Despite the above, the composite sheet has a function of preventing spread of fire or burning like good.

Therefore, it is extremely useful as a fire and disaster prevention material for interiors represented by floor, ceiling, wall covering material, upholstery material and the like.

[Brief description of drawings]

FIG. 1 is a schematic sectional view showing an example of a sheet-shaped base material for interior of the present invention. 1 ... Composite sheet for interior, 2 ... Cover material A, 3 ...
... Heat-resistant film B, 4 ... Base fabric C.

Claims (1)

[Scope of utility model registration request] 1. A flame-retardant interior composite sheet in which a covering material A, a heat-resistant film B made of an infusible organic polymer, and a base cloth C are laminated in the order of A / B / C.