JPS5843263B2 - Method for manufacturing inorganic fiber pine covered with surface material - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an inorganic fiber mat, particularly a glass fiber mat, coated with a facing material.

Inorganic mats such as glass fiber mats have traditionally been irritating (stinging), which is characteristic of fibers, so covered fiber mats, which cover the mat with a surface material such as plastic film, aluminum film, or paper, and a lower sheet-like material, are used. It is desired and various types are manufactured.

FIG. 1 is an exploded sectional view of a conventional product.

The top surface and both sides of the glass wool mat 1 are covered with an upper plastic film 2, and the film forms ears 3 at the lower side of the sides, and a lower sheet-like material 4 is attached to this, corresponding to the ears of the upper plastic film. Apply asphalt to all or part of the area and apply pressure with a rear roll (not shown) to adhere it. (Used for fitting and locking between columns).

Although not shown in the drawings, when the covered fiber mat is transported or installed, it is used to prevent the mat from falling out of the bag-like body formed by the plastic film that is the outer covering material and the lower sheet-like material. And in order to make the lower sheet material waterproof, asphalt is applied to the entire surface of the lower sheet material.

Figure 2 shows the product manufactured as described above, and when asphalt is applied to the entire part of the lower sheet material corresponding to the edges of the upper plastic film, that is, as shown in Figure 1, 5, the product is produced by applying pressure. The asphalt 7 flows out from the edge and contaminates the manufacturing equipment, and also adheres to the outer surface of the plastic film, making it extremely difficult to perform construction work.

On the other hand, if asphalt is applied to a part of the ear as shown in Fig. 1, there will be parts that do not adhere to the edge 8 of the outer covering material and the edge 8' of the lower sheet material, and this will occur during handling. It has the disadvantage that peeling occurs from parts and the mat is easily exposed.

As described above, these coated fiber mats tend to have the outer covering material peeling off from the edges, resulting in the mat being exposed or the adhesive flowing out and becoming sticky, or the outer covering material or the lower sheet material easily peeling off the mat. It has drawbacks such as the fact that the adhesive tends to stick to the presser roll during the coating process in which the surface material and the lower sheet material are bonded together.

In particular, asphalt is used as an adhesive for surface materials that are difficult to adhere to with resin-based adhesives, such as polyethylene, but in this case, asphalt that flows out may contaminate manufacturing equipment or adhere to the outer surface of the surface material. It has the disadvantage of making workability worse when handling the mat.

The present inventor has arrived at the present invention as a result of various studies on methods of manufacturing coated glass fiber mats while preventing these drawbacks.

That is, the present invention covers the top surface and both sides of the inorganic fiber mat with a surface material without adhering the surface material to the inorganic fiber mat, and folds the ends of this surface material to the bottom surface of the mat. This is a new proposal regarding a method for manufacturing an inorganic fiber mat coated with a surface material, which is characterized in that the material is pressure-adhered to a lower sheet-like material coated with an adhesive.

FIG. 3 is an exploded view of a mat manufactured by the method of the present invention, which is an improvement over the conventional product.
An upper plastic film 12, which is a surface material, is folded over the upper surface, side surfaces, and both sides of the lower surface of 1, and a lower sheet-like material 14, which is coated with asphalt 15 on the entire surface except for the vicinity of both ends in the width direction. An example is shown in which the layers are laminated and bonded under pressure using a roll.

In this way, in the present invention, the surface material and the glass wool are firmly adhered to the lower sheet-like material, so peeling from the edges is less likely to occur compared to conventional products, and the roll does not come into contact with the asphalt coated surface. Since there is no oxidation, there is less contamination during manufacturing and the restoring force is greater.

In addition, in the case of Fig. 3, it is also possible to apply asphalt except for the vicinity of both ends in the width direction of the lower sheet-like object, so that when the film is pressurized, the asphalt will not be pushed out from the edges of the film. , contamination during manufacturing can be further reduced.

Next, a description will be given based on an apparatus for carrying out the manufacturing method of the present invention.

FIG. 4 shows a concrete example of the method of manufacturing the mat shown in FIG. The wrapped rolls 46, 46' are pulled out and introduced onto a hardened glass wool mat 45.
, 47, 47', 48°48', 49,49',
50, 50', 51.51', 52°, 53.54 (there are no numbers because some of them cannot be seen due to blind spots, but the arrangement is the same on both sides), continuing on both sides and reaching the bottom, A partially covered glass wool mat 55 is formed by wrapping the ends of the top surface, both sides, and both sides of the glass wool with folded waste surface material, and the lower sheet-like material 5T is pressed from the lower surface roll 56. 58° 58', pull out the pull-out rolls 59, 59''r9, and apply asphalt 61 to the entire surface of the lower sheet-like material, such as kraft paper, except for the widthwise edge area using the molten asphalt coating device 60. The above-mentioned mat 55 is laminated and bonded by pressure using conveyors 62 and 62'.

However, in Fig. 4, supporting devices, driving devices, and mere conveyance rolls for various rolls are omitted, and the number, direction, length, size, etc. of rolls are merely examples, so please refer to the following. It does not limit the invention.

It is also possible to extrude using rolls instead of the conveyors 62, 62'.

The fiber mat of the present invention includes mats such as glass wool, single glass fibers, and strands, cut mats thereof, mixed or laminated mats thereof, rock wool, and the like.

The surface covering materials of the present invention include plastic films such as polyethylene, vinyl chloride, vinylidene chloride, polystyrene, polypropylene, polyester, and polycarbonate, laminates thereof, and laminates of these with aluminum foil, paper, etc., or laminates of them with aluminum foil, paper, etc. It is possible to use a material that has been vapor-deposited.

Further, as the lower sheet material of the present invention, the above-mentioned plastic film or paper, and a laminated sheet material of these, aluminum foil, and the like can be used.

Furthermore, as the adhesive of the present invention, adhesives such as resin adhesives and rubber adhesives that can bond the lower sheet material to the surface material and inorganic fibers can be used, but polyethylene etc. When using a surface material that is difficult to bond with ordinary resin adhesives, it is preferable to use asphalt.

The coated mat produced by the method of the present invention has a greater restoring force at the end after unpacking the compressed packaging, and is less likely to separate from the outer sheet material than the mat coated by the conventional method. It was found that there are similar effects.

The effect of this action is not fully clear, but it is thought that it is because the lower edge of the mat is covered with the folded surface material and is not adhered to the lower sheet material, so the edge of the mat can move freely. It will be done.

When using the method of the present invention, it is possible to easily produce a coated glass fiber mat with a surface material that is difficult to peel off, and there is no contamination of the equipment due to the flow of the adhesive, so there is little interference with production operations, and in particular, asphalt is When used, it has the advantage that work efficiency is less likely to be reduced due to adhesive leakage during transportation, construction, etc.

In addition, the present invention has the advantage that even when polyethylene film and asphalt are used as the surface material and adhesive of the mat, the product is easy to handle, easy to manufacture, and the surface material can be peeled off from the edges.

[Brief explanation of drawings]

Fig. 1 is an exploded cross-sectional view showing a conventional example, Fig. 2 is an assembled cross-sectional view thereof, Fig. 3 is an exploded cross-sectional view showing a product obtained by the method of the present invention, and Fig. 4 is a concrete example of implementing the method of the present invention. Explanatory diagrams showing the respective devices are shown. 1.11 is glass wool, 2 and 12 are upper plastic films (surface material), 4.14 is lower sheet material, 5,
6, 15, and 61 are asphalt.

Claims (1)

[Claims] 1. Cover the top surface and both sides of the inorganic fiber mat with the surface material without adhering the surface material to the inorganic fiber mat, and fold the end of this surface material to the bottom surface of the mat, and apply an adhesive. A method for producing an inorganic fiber mat coated with a surface material, the method comprising pressure adhering to a coated lower sheet-like material.