JPH01172285A - Production of molded article of aerated lightweight concrete - Google Patents

Abstract

PURPOSE:To obtain the title molded article capable of free design on the surface fitted with a pattern and color, etc., by coating the base material of the molded article of aerated lightweight concrete with a water-nonpermeable sheet subjected to printing work via an adhesive layer. CONSTITUTION:In the molded article of aerated lightweight concrete (ALC) fitted with a pattern, etc., on the surface by printing work, an ALC panel 1 utilized as the base material of the molded article of ALC is bonded with a water-nonpermeable sheet 3 previously subjected to printing work via an adhesive layer 2. This water-nonpermeable sheet 3 consists of a glass fiber sheet 4, waterproof layer 5, printed layer 6 and top-coat layer 7. The above-mentioned water-nonpermeable sheet 3 is obtained by the following method. Namely, after coating the glass fiber sheet 4 with silicone-base resin emulsion, the waterproof layer 5 obtained by drying it is provided. As synthetic resin utilized to form the waterproof layer 5, water-repellent resin such as silicone-base resin is used besides acrylic base resin.

Description

DETAILED DESCRIPTION OF THE INVENTION Object of the Invention (Field of Industrial Application) The present invention relates to a method for manufacturing lightweight aerated concrete (hereinafter referred to as ALC) molded products having patterns, colors, etc. printed on their surfaces.

(Prior art) Conventionally, when applying patterns and colors to ALC panels for interior use,
As shown in FIG.
Glue the wallpaper 13 provided with 7 to the ALC panel 11.
12 is known. The color layer 16 has a color pattern obtained by spraying or painting.

(Problem to be solved by the invention) However, the colored layer 1 to which color is applied in the above conventional method
No. 6 was formed by spray painting, so the surface was not smooth, the accuracy of the outer edge of the color was poor, and there were design constraints such as difficulty in creating a free design. In addition, because conventional wallpaper is water permeable,
LC panels could not be used and were unsuitable for exterior walls.

An object of the present invention is to solve the above-mentioned problems and to provide a simple method for manufacturing an ALC molded product that allows free designs on the surface with patterns, colors, etc.

Structure of the Invention (Means for Solving Problems) In order to achieve the above object, the present invention provides an outer layer for the upper material of an ALC molded product, and a water-impermeable sheet printed on the adhesive layer. A covering structure is adopted.

(Function) By adopting the above configuration, the non-water permeable sheet, which has been printed with a desired free design pattern, color, etc., on the upper material of the ALC molded product, can be made with elastic adhesive such as acrylic adhesive. They are easily joined together via an adhesive layer made of a compound or the like, and the desired ALC molded product can be obtained.

(Example) An example embodying the present invention will be described below based on FIGS. 1 to 4.

As shown in FIG.
A pre-printed non-water permeable sheet 3 is bonded onto an ALC panel 1 serving as a base material for a C-molded product via an adhesive layer 2. The water-impermeable sheet 3 consists of a glass fiber sheet 4, a waterproof layer 5, a printed layer 6, and a top coat layer 7.

Next, a method for manufacturing an ALC molded product having such a configuration will be explained along with its functions and effects.

First, as shown in FIG. 2, the water-impermeable sheet 3 is obtained as follows.

A waterproof N5 obtained by coating a silicone resin emulsion on the glass fiber sheet 4 and then drying it is provided. As the synthetic resin used to form the waterproof layer 5, water-repellent resins such as silicone resins are used in addition to acrylic resins. Next, a printed layer 6 is formed on the waterproof layer 5 by printing patterns, colors, etc. according to a desired design. When used for exterior walls, it is preferable to use weather-resistant inorganic pigments. The same printing N6 is precisely printed with the patterns and colors of natural stones such as marble and granite. Then, by applying a paint made of silicone resin on the printing layer 6, a top coat layer 7 is formed.
is formed. As the paint forming the top coat layer 7, a paint made of fluororesin or urethane resin can also be used.

The thickness of the water-impermeable sheet 3 is 0.05 to IIIl.
A range of l+ is preferred. If this thickness is less than 0.05 mm, fine irregularities on the surface of the ALC panel 1 will easily appear on the surface of the non-water permeable sheet 3, and if it exceeds IIIll, it will be economically disadvantageous and it will be difficult to make it follow the ALC panel 1. Become. Within the above range, there is no problem even if the water-impermeable sheet 3 is thin as long as it has a predetermined hardness and elasticity.

In addition, since the ALC panel 1 has high water absorption, in order to provide waterproof performance, the non-water permeable sheet 3 conforms to JIS-A6910.
It is preferable that the water permeability defined by is 0.5 ml or less. If the water permeability exceeds 0.5++1, especially when used for external walls, moisture will be absorbed into the ALC panel 1.
This is not preferable because it easily permeates into the printed layer 6 of the water-impermeable sheet 3.

Next, the glass fiber sheet 4 side of the water-impermeable sheet 3 obtained in this way is placed against the ALC panel 1.
Attach using adhesive N2 using an acrylic room-temperature curing-liquid adhesive. That is, an adhesive is applied to the entire surface of the water-impermeable sheet 3 on the glass fiber sheet 4 side, and this is superimposed on the surface of the ALC panel 1 which has not been surface-treated.

Note that the end portion of the water-impermeable sheet 3 is wrapped around the side surface of the ALC panel 1 and attached. AL obtained in this way
A plurality of C panels 1 are stacked one above the other with an elastic sheet interposed therebetween so as not to adhere to each other, and the water-impermeable sheet 3 is adhered to the ALC panel 1 under pressure. Then, the adhesive hardens at room temperature and reaches the state shown in FIG.

In addition to the above-mentioned acrylic adhesives, adhesives include urethane adhesives, rubber adhesives such as chloroprene rubber and nitrile rubber, and elastic adhesives such as silicone adhesives. This is preferable because it follows expansion and contraction and because the surface of the printing layer 6 has no wrinkles and is finished neatly. Therefore, adhesives with no elasticity such as epoxy adhesives are not preferred.

Using such an elastic adhesive, the entire surface of the glass fiber sheet 4 side of the non-water permeable sheet 3 is bonded with the adhesive, so that the entire non-water permeable sheet 3 is attached to the ALC panel 1. It adheres reliably and creates a smooth surface. In this way, an ALC molded product with a desired pattern etc. drawn on the ALC panel 1 is manufactured.

In this way, the non-water permeable sheet 3 printed with a desired design, etc., is adhered to A through the adhesive layer 2.
When the LC panel 1 is used as an exterior wall material of a building,
As shown in FIGS. 3 and 4, notches 8 are provided in adjacent parts of adjacent ALC panels 1, and silicon rubber, acrylic rubber, etc. A sealing member 10 such as the above is filled.

Therefore, sufficient waterproofness is maintained between adjacent ALC panels 1, and the non-water permeable sheet 3 on the ALC panel 1
Since the end portion of is filled with the sealing member 10,
There is no need to specially treat the ends of the water-impermeable sheet 3.

As described above, according to the manufacturing method of the ALC molded product of this example, the water-impermeable sheet 3 is provided in an amount sufficient to fill in the fine irregularities on the surface of the ALC panel 1, so the surface is smooth and has an excellent appearance. There is. In addition, an ALC molded product in which natural stone such as marble or granite is printed with a pattern, color, etc. can be easily obtained by simply attaching the water-impermeable sheet 3 to the ALC panel 1. This water-impermeable sheet 3 is AL
Since it sufficiently follows the thermal expansion and contraction of the C panel 1, the excellent appearance of the surface of the water-impermeable sheet 3 is maintained for a long period of time. Furthermore, the non-water permeable sheet 3 has a top coat layer? As a weather-resistant coating made of silicone resin has been applied, it can be suitably used as the exterior wall of a building.
In this case, the surface condition of the ALC panel 1 with freely designed patterns, colors, etc. is maintained for a long period of time.

The present invention is not limited to the above embodiments, but can also be configured as follows.

That is, for the Totsubuko layer 7 on the printed layer 6 provided on the water-impermeable sheet 3, the above-mentioned top knee Fi 17 can be omitted in indoor applications where weather resistance is not required. Even with this configuration, the object of the present invention can be achieved.

Effects of the Invention According to the method for producing an ALC molded product of the present invention, the ALC molded product has a smooth surface with patterns, colors, etc., and allows for free designs.
This has an excellent effect in that a C molded product can be easily obtained.

[Brief explanation of the drawing]

1 to 4 are diagrams showing embodiments of the present invention, in which FIG. 1 is a cross-sectional view showing an ALC panel provided with a water-impermeable sheet, FIG. 2 is a cross-sectional view showing a water-impermeable sheet, and FIG. The figure is a perspective view showing how ALC panels are joined together, FIG. 4 is a sectional view of FIG. 3, and FIG. 5 is a sectional view of a conventional ALC molded product. 1...AL as a base material for lightweight cellular concrete molded products
C panel, 2... adhesive layer, 3... non-water permeable sheet,
6...Printing layer, 7...Top coat layer Patent applicant
Patent attorney representing Onoda NLC Co., Ltd.
1) Hironobu

Claims (1)

[Claims] 1. An adhesive layer (2) is provided on the lightweight cellular concrete molded product base material (1), and the adhesive layer (2) is covered with a printed non-water permeable sheet (3). A method for producing a lightweight aerated concrete molded product. 2. The method for manufacturing a lightweight cellular concrete molded product according to claim 1, wherein the water-impermeable sheet (3) has a water permeability of 0.5 ml or less as defined in JIS-A6910. 3. The lightweight cellular concrete according to claim 1, wherein the water-impermeable sheet (3) has a top coat layer (7) provided on the surface of the printed smooth printed layer (6). Method of manufacturing molded products.