JPS6021861B2 - Composite panel for ceilings - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a light-weight post-laminated panel for ceilings that has heat insulation and humidity control functions, has a frame material that has undergone actual processing, and can be constructed with openwork.

There are rock wool, glass wool, insulation board, gypsum board, etc. as lightweight ceiling materials with thermal and soundproofing effects, but none of them satisfy all the advantages.

That is, rock wool, glass wool, insulation board, etc. are hygroscopic, and their insulation effect decreases due to moisture absorption, and they also sag due to increased weight. Motomura is fragile 1
．． It is not possible to obtain the largest ceiling material such as 5 x 12 squares. If they are made to be long, they may break, chip, or crack during manufacturing, transportation, and construction. Gypsum board is the cheapest of these, but it is not the lightest. Moreover, since both materials are installed by nailing, the nail heads are exposed on the surface and are unsightly. Since ancient times, Japanese people have not liked finishes where the nail heads are visible. In addition, on the ceiling board,
In addition to insulation and light weight, consideration must also be given to humidity.

In other words, if moisture leaks from the room into the ceiling, it causes condensation on the ceiling and attic. Particularly if the roof insulation is insufficient, condensation is unavoidable in the shed, and that condensation may pass through the ceiling and be exposed indoors. In addition, with conventional ceiling materials and structures in which insulation material is placed on top of the ceiling materials, if the attic is not sufficiently ventilated, silkworms will occur in the winter due to roof damage and ceiling damage, and under the eaves of hipped buildings and gables. In buildings where there is a difference in height between the roof and the ridgepole, it is not possible to provide sufficient ventilation in the shed bag, so condensation is likely to occur. Excessive ventilation may prevent silk fog, but it will lower the shed temperature and reduce the insulation effect. Therefore, it is necessary to devise ways to prevent moisture from flowing into the attic, which is one of the causes of fog formation. In view of the above-mentioned problems, the present invention has devised a lightweight and inexpensive composite panel for ceilings in which the frame is actually processed and can be constructed with openwork. A hair surface sheet comprising a moisture-proof layer made of synthetic resin, aluminum foil, etc. and a humidity control layer made of a material mainly made of paper or fibers is bonded to the upper surface of the heat-insulating core material having a heat-insulating core material. It is formed by bonding a surface sheet having at least a moisture control layer of the above-mentioned moisture-proof layer and humidity control layer to the lower surface of the material, and also covers the visible part of the frame material provided at the end of the center core village. This is a rear panel for ceilings, which is made by actually processing the frame material and is covered with the above-mentioned surface sheet, so that it can be used to create openings. To explain in more detail below, examples of moisture-proof layers include synthetic resin films or coating layers such as olefin resin, acrylic resin, nylon resin, polyester, and polycarbonate, aluminum foil, aluminum vapor deposition film, and paraffin or wax coating. There are layers, etc., and these can be laminated onto a material mainly made of paper or fibers, and can be coated to form a back sheet.

It is of course within the scope of the present invention to provide a backsheet of not only a two-layer structure but also, for example, a three-layer sandwich structure, by laminating or coating. The reason for combining paper or fiber materials with a moisture-proof layer is that paper and fibers have the ability to absorb and release moisture depending on the surrounding humidity, and have a humidity control function. This is because.

It is preferable to use a material having air chambers as the core material because it has a small specific gravity and is lightweight.

Examples include structurally strong honeycomb materials, roll core materials, corrugated materials, or foam materials. However, when using a foamed material for the central core, a material having too finely divided foamed air chambers is not suitable because the specific gravity becomes large and the weight increases. A foam material with a foaming ratio of 2 or more is preferable. Honeycomb materials made of kraft paper, aluminum plates, olefin resin films, roll core materials, etc. are suitable as core materials because they are lightweight. To further explain the embodiment shown in the drawings, FIG. 1 is a sectional view showing a ceiling board cut perpendicularly to the longitudinal direction. A laminated paper 3 and aluminum foil 4 are pasted on the top surface as the back sheet 2, and a printed layer 7 such as a wood grain pattern is attached to the surface of the paper 6 as the top sheet 5. The top sheet 5 is applied to the bottom surface of the core material by applying a resin coat layer 8 for protection, and the bottom surface of the frame material 9 provided at both ends of the core material, i.e. When installed as a ceiling board, the top sheet 5 is also covered and bonded to the part that can be seen by people in the room.

A stepped portion 104 is formed in this frame material 9 because this product is used as a ceiling material, and if such a stepped portion 10 is provided, the joint between the ceiling materials will be It is possible to construct the structure so that there are no gaps in the structure.
As already mentioned, the material of the moisture-proof layer, humidity control layer, and core material is not the same as the aluminum foil or paper used in the honeycomb structural material shown in the example shown in the figure. It is also possible to use films and coating layers made of various synthetic resins as described above as the moisture-proof layer. The humidity control layer may be made of fiber materials other than paper, or may be made of structural materials such as sheet-like or paper cardboard. 0 As is clear from the examples in the drawings, the surface sheet is often printed with patterns suitable for ceiling materials, such as woodgrain patterns or repeating patterns, and this allows it to be used as an interior material. It has the appearance of

The composite panel for ceilings of the present invention, in which the frame material is subjected to actual processing and can be constructed with open marks, can also be used as a semi-noncombustible material.
In other words, when quasi-incombustible performance is required, the two sheets are changed from paper-based to asbestos-based, the honeycomb material is made of asbestos sheet or flame-retardant paper, and the frame is made of lightweight framework such as aluminum. However, in order to maintain insulation performance, an aluminum frame or the like may be used as a hollow body, and wood or synthetic wood may be placed inside the frame. The composite panel for ceilings of the present invention, which has been subjected to actual processing on the frame and can be constructed with open marks, is as described above. It can be said to be perfect as a moisture countermeasure because it has a moisture-proof layer on the front and back sides, and has moisture-control layers on both the front and back sides that have the function of absorbing or releasing a certain amount of moisture.

In addition, a moisture-proof layer will be provided on the top sheet as necessary. If you use a moisture-proof layer such as aluminum foil for the surface sheet, which does not allow water vapor to pass through at all, the moisture in the room may trickle down to the ceiling surface, so care must be taken. Depending on the use and purpose, it is often difficult to provide the top sheet with a moisture-proof layer mainly made of resin. According to the composite panel for ceilings of the present invention, in which the frame material is actually processed and can be constructed with open marks, it has excellent heat insulation and moisture proofing properties, so the space under the attic can be reduced.

Therefore, in medium-to-high-rise buildings, the floor height can be reduced, and the cost of building materials can be reduced by 5 to 10%.

There is no need to get into the ceiling hair during construction, making carpentry work easier, and perfect measures against condensation in insulation construction for hipped buildings, rectangles, etc. Also, since it is an extremely light panel, the maximum size is 1.5 x
A carpenter can now construct large-sized ceiling materials such as 12 shaku, and when combined with actual machining and surfacing, panels suitable for both Wafu and Western ceilings can be created.

Some embodiments of the present invention will be described below.

Example 1 Extrusion lamination of 20 m/skin-thick polyethylene film between two sheets of 80 m/skin kraft paper, two sheets prepared, a wood grain pattern printed on one sheet, amino alkyd Top coated with resin to form a top sheet. A honeycomb material made by impregnating kraft paper with machine fat and a processed wooden frame material were glued between the front and back double-sided sheets to obtain a ceiling material of 1 x 6 shaku size. Example 2 Instead of printing on a sheet in Example 1, one decorative sheet was made by printing a fabric pattern on thin paper and pasting it together with pre-coated paper top-coated with urethane resin, and inserting the inner material at 3-shaku intervals. A ceiling material measuring 1.5 shaku x 12 shaku was obtained.

Example 3 In Example 1, water-resistant cardboard with a thickness of 6 m/skin was used as the top sheet.

Example 4 One side of the water-resistant cardboard of Example 3 with a wood grain pattern gravure printed was used.

Example 5 In Example 1, the back sheet was coated with 150 g/g of kraft paper.
A piece of aluminum foil laminated with a thickness of 1 m'm was used.

Example 6 In Example 1, polystyrene foam foamed with three holes was used for the core.

Example 7 In Example 1, a cushioning material was used in which a polystyrene film was partially processed into a dome shape and polyethylene films were fused to the top and bottom of the core material.

Example 8 In Example 1, 80 Yen/Makura asbestos paper was used instead of 80 Yen/Pillow kraft paper, aluminum foil honeycomb material was used as the core material, and aluminum pipe material with synthetic wood core was used as the frame material. Using.

Example 9 The wood pattern of Example 3 was coated with urethane resin, and the cushioning material of Example 7 was used as the core material.

Example 10 In Example 1, paper laminated with aluminum foil instead of polyethylene film and 150 yen/kraft paper with a wood grain pattern printed on it were coated with urethane resin and used as the back sheet and top sheet, respectively. .

[Brief explanation of the drawing]

FIG. 1 is a sectional view showing one embodiment of the present invention. 1... Core material, 2... Back sheet, 3...
...Paper, 4...Aluminum foil, 5...
Surface sheet, 6... Paper, 7... Printing layer, 8... Glossy varnish layer, 9... Frame material, 1
0...Dan section. Figure 1

Claims (1)

[Claims] 1 A frame material that has been actually processed is joined at both ends of an insulating core material with an air chamber, and a moisture-proof layer made of synthetic resin, aluminum foil, etc. is placed on the top surface, and a material mainly made of paper or fiber is used. A back sheet comprising a moisture control layer is bonded to the bottom surface of the back sheet, and a top sheet having at least one of the moisture control layer and the humidity control layer is bonded to the bottom surface of the back sheet, and a transparent pattern can be applied thereto. A composite panel for ceilings.