JPH0358721B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a method for manufacturing a coated inorganic fiber mat, in which the surface of an inorganic fiber mat such as a glass fiber mat is protected with a skin material such as a plastic film.

(Prior Art) Conventionally, the surface of inorganic fiber pine was covered with a skin material to prevent irritation and scattering caused by the fibers.
A method for coating such an inorganic fiber mat with a skin material includes a method of polymerizing and pasting the skin material on at least the upper and lower surfaces of the inorganic fiber mat via an adhesive, and a method for coating the mat with a skin material such as a coated inorganic fiber mat for construction. In order to drain the moisture that has entered the interior and prevent condensation, the surface material should be made with pores with a diameter of 700~
A method is known in which a material having countless pores of about 1000 μm is used and is polymerized and adhered to an inorganic fiber mat in the same manner as the above method.

(Problem to be Solved by the Invention) However, in the case of the former method for producing coated inorganic fiber mats, not only does it require a troublesome process of applying an adhesive, but also the adhesive There is a problem that the material tends to delaminate from the mineral fiber mat.

In addition, in the case of the latter manufacturing method for coated inorganic fiber mat for construction, there is a problem that the manufacturing process is complicated by adding drilling work to the skin material in addition to the pasting process, and the drilling process is relatively complicated. In the case of large holes, raindrops and the like tend to easily enter the inside through the perforation.

The present invention aims to solve the above-mentioned problems and provide a method for manufacturing a coated inorganic fiber mat that is easy to manufacture and inexpensive.

(Means for Solving the Problems) The method for manufacturing a coated inorganic fiber mat of the present invention includes thermally adhering a thermoplastic plastic film to the surface of an inorganic fiber mat while suctioning it, and forming ventilation holes in the plastic film. The method is characterized in that the plastic film is bitten into the fibers of the inorganic fiber mat.

(Example) Figures 1 and 2 show a flameproof and flame-retardant coated inorganic fiber mat produced by one example of the method of the present invention.

First, a thermoplastic plastic film ² made of a soft vinyl chloride film (self-extinguishing film) with a thickness of 13 μm was superimposed on the upper surface of an inorganic fiber mat 1 made of glass fiber with a density of 10 Kg/m 3 and a thickness of 50 mm. Next, while suctioning with a suction pressure of 90 mmHg using the suction method, the temperature was heated using a heat source consisting of a silicon carbide heating element.
The thermoplastic plastic film 2 was heat-treated at 120° C. and bonded to one side of the inorganic fiber mat, and then thermally bonded to produce a flameproof and flame-retardant coated inorganic fiber mat.

In this way, the thermoplastic film 2 is thermally bonded while being suctioned without using an adhesive.
The molten surface of the inorganic fiber mat 1 bites into the fiber surface of the surface of the inorganic fiber mat 1 and strongly adheres to the fiber surface of the inorganic fiber mat 1. Therefore, the thermoplastic plastic film 2 is firmly bonded to the entire upper surface of the inorganic fiber mat 1. A fiber mat is obtained, and at the time of thermal bonding, countless irregular fine ventilation pores with a diameter of about 80 to 500 μm are formed, which are almost invisible to the naked eye. Note that the ventilation holes 3 are shown in the drawing for convenience.

In addition, irregular uneven surfaces are formed on the two sides of the plastic film thermally bonded to the surface of the inorganic fiber mat, increasing the frictional resistance on the surface, making it possible to perform good compression winding and packaging of long products. Further, since minute ventilation holes 3 are formed in the plastic film 2 during thermal bonding while suctioning, the work and equipment for making holes in the skin material in advance as in the conventional method can be omitted, thereby simplifying the manufacturing process.

In the above embodiment, the plastic film 2 covers the top surface of the inorganic fiber mat 1, but although not shown, the plastic film 2 covers the top surface and both side surfaces of the inorganic fiber mat 1, or the top surface and both sides of the inorganic fiber mat 1. The lower surface may be covered.

Furthermore, the thermoplastic plastic film used in the present invention is not limited to the above-mentioned soft vinyl chloride film, but also includes self-extinguishing films such as vinyl chloride dene film, and flame-retardant films such as polyethylene film subjected to flame-retardant treatment. A film can be used, and the thickness of the film may be appropriately selected depending on the density and thickness of the inorganic fiber mat to be coated. Generally, about 10 to 50 μm is preferable;
If a film of about 10 to 30 μm is used, fine ventilation holes 3 can be easily formed during thermal bonding.

In addition, the temperature during thermal bonding may be set appropriately depending on the size and thickness of the inorganic fiber mat and the thickness of the plastic film covering it.
The temperature may be about 100 to 200°C.

In addition, the suction pressure when pressing the thermoplastic plastic film onto the inorganic fiber mat may be set appropriately depending on the density and thickness of the inorganic fiber mat and the thickness of the plastic film covering it, and is generally 20 to 200 mmHg. It is sufficient to set the degree.

By using the method for producing a coated inorganic fiber mat of the present invention as described above, the following coated inorganic fiber mat can be easily produced.

To manufacture a coated inorganic fiber mat as shown in FIGS. 3 and 4, first, a thermoplastic film 2 is thermally bonded to the upper surface of an inorganic fiber mat 1 in the same manner as in the embodiment of the present invention. Produce inorganic fiber mat.

Next, a moisture-proof sheet material 4 such as waterproof paper, plastic film, plastic film laminated with aluminum foil, etc. is adhered to the lower surface of the coated inorganic fiber mat through an adhesive 5 applied in spots.

In order to manufacture the coated inorganic fiber mat shown in FIG. The thermoplastic plastic film 2 is suctioned and thermally bonded to the inorganic fiber mat 1 to form minute ventilation holes 3, and the mat is coated on the top and both sides of the mat, and both side parts 2 of the film are attached.
After forming the mats a and 2a, a moisture-proof sheet 4 was provided on the lower surface of the mat in the same manner as shown in FIGS. 3 and 4. In addition, both side parts 2a, 2 of the film 2
The end portion of a and the moisture-proof sheet 4 may be joined by heat sealing or adhesive.

In order to manufacture a coated inorganic fiber mat as shown in FIG. According to the embodiment of the present invention, thermoplastic plastic film 2 is bonded to inorganic fiber mat 1.
The ventilation hole 3 is formed by thermally adhering it while suctioning it.
After covering the top surface and both sides of the pine with pine to form both side surfaces 2a, 2a of the film, a moisture-proof sheet 4 is adhered to the bottom surface of the inorganic fiber pine 1 with a chloroprene adhesive, and both sides of the plastic film 2 are bonded to the bottom surface of the inorganic fiber pine 1. After bending the ears of the surface parts 2a, 2a and overlapping the ears 2b, 2b on both side edges 6 of the moisture-proof sheet 4, they were joined together by pasting or heat fusion.

FIGS. 3 and 4 obtained in this way,
When a coated inorganic fiber mat as shown in FIGS. 5 and 6 is used as an interior material, moisture from indoor heating, etc. is removed from the inorganic fiber mat 1 by a moisture-proof sheet 4 provided on the underside of the mat. On the other hand, the air permeability of the fine ventilation holes 3 of the plastic film 2 which is thermally bonded to the upper surface of the inorganic fiber mat 1 makes it possible to exhaust the inside of the inorganic fiber mat 1, thereby preventing dew condensation inside the mat 1. It can be made into an inorganic fiber mat suitable as a building material that can prevent this.

(Effects of the Invention) According to the present invention, a thermoplastic plastic film with or without flame retardant properties is thermally bonded to an inorganic fiber mat while being sucked, and ventilation holes are formed in the plastic film. At the same time, since the plastic film is bitten into the inorganic fiber mat, the melted surface of the thermoplastic plastic film can be bitten into the fibers on the surface of the inorganic fiber mat without using an adhesive as in the conventional method. In addition, since fine ventilation holes can be automatically formed at the same time as thermal bonding, the process is simple as it eliminates the need for drilling into the plastic film, which is required in conventional methods, and has excellent adhesive properties. The present invention has effects such as being able to easily and inexpensively produce a stable and robust coated inorganic fiber mat with good air permeability. In addition, since an irregular uneven surface is formed on the surface of the plastic film that is thermally bonded to the surface of the produced inorganic fiber mat, the frictional resistance on the surface increases, making it possible to perform good compression winding and packing operations for long products. It becomes possible.

[Brief explanation of drawings]

1 and 2 show a coated inorganic fiber mat produced according to Example 1 of the present invention, in which FIG. 1 is a partial perspective view, FIG. 2 is a cross-sectional view, and FIGS. Fig. 4 shows an application example of the coated inorganic fiber mat produced according to the first embodiment of the present invention, Fig. 3 is a partial perspective view thereof, Fig. 4 is a cross-sectional view thereof, and Fig. 5 is a cross-sectional view of the covered inorganic fiber mat produced according to the first embodiment of the present invention. A cross-sectional view of another application example of the coated inorganic fiber mat produced according to the example,
FIG. 6 shows a cutaway view of yet another application example. 1...Inorganic fiber mat, 2...Thermoplastic plastic film, 3...Vent hole.

Claims (1)

[Claims] 1. A covered type characterized in that a thermoplastic plastic film is thermally bonded to the surface of an inorganic fiber mat while being suctioned to form ventilation holes in the plastic film, and the plastic film is bitten into the fibers of the inorganic fiber mat. A method for producing inorganic fiber matte.