JPS6151966B2 - - Google Patents

Description

[Detailed description of the invention]

The present invention relates to a method for producing an inorganic cosmetic body used for building materials and the like. Conventionally, in order to obtain an inorganic decorative body with a deep color and no luster, the base material that will become the decorative body is molded using a continuous molding process such as roll molding, and then cured (cured) with moist heat, followed by a painting process. Cosmetic body manufacturing methods have been adopted in which emulsion coating, colored sand coating, and emulsion coating are performed sequentially in the coating process, or emulsion and colored sand are simultaneously coated to form a colored layer on the molded article substrate. However, the cosmetic body obtained by such a manufacturing method is
Since the colored sand is merely adhesively fixed by emulsion resin, the decorative layer of colored sand fixed to the surface of the decorative body is likely to peel off and fall off due to contact between the decorative bodies or other objects. The appearance quality was likely to deteriorate significantly. This invention was made in view of the above circumstances, and by applying a special coating to a substrate continuously formed by roll forming or the like before curing and curing, the cosmetics come into contact with each other or the cosmetics and other objects do not come into contact with each other. The object of the present invention is to provide a method for producing an excellent cosmetic body having a deep color tone without causing peeling or falling off of the cosmetic layer due to contact with the cosmetic layer. That is, the present invention provides an inorganic cosmetic body characterized in that, when manufacturing a cosmetic body using a continuously molded hydraulic inorganic molded article as a base, at least the following steps are sequentially performed before curing treatment of the base body. The gist is the manufacturing method. (a) Forming rolls and forming dies allow
A process of adjusting the width and thickness of the substrate (b) A process of scattering colored sand on the surface of the substrate (c) A process of embedding the colored sand into the substrate by applying pressure while moving in accordance with the movement of the transferred substrate (d) Step of applying emulsion to the surface of the substrate in which colored sand is embedded FIG. 1 is a process explanatory diagram of one embodiment of the present invention. In FIG. 1, 1 is a molding material before molding, and the molding material 1 supplied from a hopper 2 is conveyed by a conveyor 3 provided below the hopper 2 to an arrow A.
It is continuously flowed down onto a receiving mold 4 which is interlocked with the direction of the arrow B, and the width and thickness are adjusted by a forming roll 5 and a forming die 6 rotating in the direction of arrow B to form a molded product, that is, a base body 7. The substrate 7 is coated with emulsion or water 8 on its surface in the next step. In this case, if water is floating on the surface of the substrate 7, the substrate 7 is transferred to the next step of spreading colored sand without going through the step of spreading the emulsion resin or water 8 on the surface. . That is, since the substrate 7 is in an uncured state immediately after molding, the water used during compounding often forms a bulge on the surface of the substrate 7. This is because this water has a sufficient effect of promoting the adhesion of colored sand in the next step. However, when water is not floating on the surface of the substrate 7, it is preferable to apply the emulsion resin liquid or spray water as described above to promote adhesion of colored sand in the next step. In particular, emulsion resin coating has a great adhesion effect. Next, the substrate 7 is transferred to the colored sand coating process.
Here, the colored sand 9 prepared in advance is sprinkled on its surface so as to be uniformly distributed. colored sand 9
A colored sand layer 10 formed on the substrate 7 by scattering
gives the substrate surface a matte deep color tone.
By using a variety of colored sands together or by devising a spreading method, it is possible to obtain a decorative body with a beautiful appearance including various patterns and patterns. The substrate 7 on which the colored sand 9 has been sprinkled is then transferred to a pressurizing process. In this pressing step, the layer 10 of colored sand spread on the surface of the substrate 7 is lightly pressed from above by the pressing plate 11. Then, since the base 7 is in a state before hardening, the colored sand 9 is
easily embedded into the surface. In this pressurizing process, the base body 7 is still moving continuously, so the pressurizing process is performed using a running pressurizing method, that is, the pressurizing plate 11 is interlocked in the same direction and speed as the moving direction and speed of the conveyor 3. After moving the robot for a certain distance in the direction of arrow C, it is lifted up at the position shown by the dashed line, quickly returned to the direction of arrow C', and lowered again. A method in which the pressure is continued while the pressure plate 11 moves in the C direction is preferable because friction due to slippage etc. does not occur between the pressure plate 11 and the colored sand 9, and continuous pressure is applied evenly. . In this pressurizing process, the purpose is achieved if the colored sand 9 is embedded in the surface of the base 7, so the soft base 7 before hardening is
Even if the pressing force is small, it is sufficient. The substrate 7 in which the colored sand 9 has been embedded is then transferred to a step of applying an emulsion resin liquid.
In this step, in order to prevent the colored sand 9 that has been buried and dispersed into the surface layer of the substrate in the pressure step from peeling off or falling off from the substrate 7,
An emulsion resin liquid 12 is applied to the surface of. This emulsion resin liquid application simultaneously completes the surface makeup of the final cosmetic body. After applying the emulsion resin liquid, curing is performed. For curing, the usual curing methods used for curing cement, such as moist air curing, moist heat curing, and autoclave curing, are employed. By going through this curing and curing process, the colored sand layer 10 becomes integrated with the base 7 and is formed into a highly durable decorative layer. Since the inorganic decorative body obtained by this invention has colored sand embedded in the base, the decorative layer will not peel off or fall off even if the decorative bodies come into contact with each other or with other objects. There is nothing to do. Moreover, it has a deep color tone and excellent appearance quality. According to this invention, colored sand is sprinkled and emulsion is applied before curing and hardening of the substrate, so that curing and curing are performed.
This eliminates the need for a drying process, which is required when painting after curing. Next, examples of the present invention will be described below together with comparative examples. [Example], [Comparative example] A base was molded using a cement board molding material containing 100 parts by weight of ordinary cement and 50 parts by weight of water.
This was subjected to each step shown in Table 1 in order to produce a cosmetic body.

[Table] As a result, colored sand was embedded in the base of the decorative body of Example. On the other hand, in the decorative body of the comparative example, only colored sand was attached to the surface of the base body. As a result of repeatedly bringing the decorative bodies of Example and Comparative Example into contact with each other several times, no peeling or falling off of the colored sand was observed on the decorative body of Example, whereas The colored sand had peeled off and fallen off at the contact area, resulting in a significantly inferior appearance.

[Brief explanation of the drawing]

FIG. 1 is a process explanatory diagram showing an embodiment of the present invention. DESCRIPTION OF SYMBOLS 1... Molding material, 5... Molding roll, 7... Substrate, 8... Emulsion resin liquid or water, 9...
... Colored sand, 10 ... Colored sand layer, 11 ... Pressure plate,
12... Emulsion resin liquid.

Claims (1)

[Scope of Claims] 1. An inorganic cosmetic characterized in that when producing a cosmetic body using a continuously molded hydraulic inorganic molded article as a base, at least the following steps are sequentially performed before curing and curing treatment of the base body. How the body is made. (a) Forming rolls and forming dies allow
A process of adjusting the width and thickness of the substrate (b) A process of scattering colored sand on the surface of the substrate (c) A process of embedding the colored sand into the substrate by applying pressure while moving in accordance with the movement of the transferred substrate (d) Step 2 of applying emulsion to the surface of the substrate in which colored sand is embedded After step A and before step B, apply emulsion or 2. A method for producing an inorganic cosmetic body according to claim 1, which comprises a step of applying water.