JPS6054274B2 - Cosmetic method using inorganic materials - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for imparting desired decorative patterns to colored, hydration-curable inorganic materials.

BACKGROUND ART Conventionally, painting finishing, ricin/spray tile finishing, porcelain tile finishing, etc. have been mainly used as surface decoration methods for hydration-curable inorganic materials such as cement and plaster.

However, these methods are not necessarily satisfactory. In other words, painting is easy, but patterns cannot be formed. The design is inferior. The ricin/sprayed tile finish gives a good design effect, but it takes a lot of effort to make it look beautiful.
The cost of cosmetic materials will also increase. Although the porcelain tile finish provides a high-quality decorative surface, it requires a skilled professional installation engineer and the cost of materials is high. An object of the present invention is to provide a method for making existing hydration-curable inorganic materials into cosmetics using simple means. As a result of intensive studies for the above-mentioned purpose, the present inventors focused on the fact that hydration-curable inorganic materials containing colorants hardened with different water ratios give different material colors, and actively used this to form patterns. It has been found that the above object can be achieved by applying the method to

That is, the cosmetic method for hydration-curing inorganic materials of the present invention involves partially changing the water ratio of at least the surface layer of an uncured hydration-curing inorganic material layer containing a colorant into a desired pattern. This method is characterized in that patterned portions of different material colors are formed in the cured inorganic material layer by adding a layer of the cured inorganic material. The color of a hydration-curable colored inorganic material upon curing varies depending on the material composition, construction conditions, curing state, etc. Among these, the water ratio in the material has a large influence.

The phenomenon in which the color of a colored inorganic material changes due to a change in the water ratio has been known for a long time. However, until now, only studies have been conducted in the direction of eliminating the color difference of this material and making it uniform, but it has not been considered that the color difference of colored inorganic materials, which vary depending on the water ratio, can be used to form patterns. Nakatsuta. That is, the greatest feature of the present invention is that the color difference between colored inorganic materials that differ depending on the water ratio, which was conventionally considered only as a drawback, is actively employed in pattern formation.
The reasons why a change in water ratio during uncuring causes a color difference in the cured material or, in addition, a difference in color, have not necessarily been fully analyzed, but the following factors may be considered. In other words, (a) differences in the material water ratio will cause differences in the density of the surface structure of the material when the material is cured; (b) differences in the material water ratio will result in different hydration curing reaction products of the material. (iii) The distribution of material components differs due to the difference in material water ratio, and in particular, the colorant composition of the surface layer partially differs.
The cosmetic method for hydration-curing inorganic materials according to the present invention will be explained in more detail below with reference to the drawings as necessary. Hydration-curable inorganic materials to which the present invention can be applied include hydraulic cements such as Boltland cement, hydraulic substances such as hemihydrate gypsum and other inorganic binders as binders, and fillers and aggregates as necessary. Additives such as plasticizers, stabilizers, curing accelerators or retarders, stabilizers, curing accelerators or retarders, wetting agents, emulsifiers, thickeners, blowing agents, natural or synthetic resins, etc. A hydraulic composition that is mixed with water is used.

For example, 1 to 10% by weight of these inorganic materials.
Add colorant.

As the coloring agent, pigment pigments such as iron oxide, red iron oxide, ultramarine, and carbon black, or alkali-resistant dyes, and colored aggregates such as agarite, granite, and silica sand are used. It is desirable to select a coloring agent that has a color different from that of the inorganic material itself. Furthermore, when using a dye, it is preferable to use one with excellent weather resistance. 3 According to the present invention,
By forming portions with different water ratios on at least the uncured surface layer of these inorganic materials, portions 1 and 2 of different material colors are obtained in the hydration-cured inorganic material layer as shown in FIG.
In order to form parts 3 with different water ratios in an uncured inorganic material, parts 3a and 3b with different water permeability (in this example, part 3a is non-water permeable and part 3b is water permeable), as shown in FIG. A sheet 3 having the properties of 30% and 40% is prepared, and this is laminated on the uncured inorganic material layer 4 as shown in FIG.

As a result, water in the material layer 4 in contact with the water-permeable portion 3b of the sheet 4'3 evaporates preferentially and the water ratio decreases, while in the material layer 4 in contact with the non-water-permeable portion 3a, the initial water ratio becomes too large. Since it does not change, the water ratio becomes relatively high. Therefore, if the sheet 3 is peeled off after curing or when curing has progressed considerably, as shown in FIG. 4, the cured inorganic material layer 4A is removed.
On the surface layer, a light colored portion 1 is usually formed corresponding to a portion with a high water ratio, and a dark colored portion 2 is formed corresponding to a portion with a low water ratio. However, the product produced by the method of the present invention may be left with the sheet 3 attached thereto. Also, if two or more colorants, for example, an organic pigment and an inorganic pigment, are mixed and added, due to the difference in specific gravity, the organic pigment will be used in areas with a high water ratio, and the inorganic pigment will be added in areas with a low water ratio. The amount of pigment increases and it can be colored in two colors depending on the pattern.

The sheet 3 having the above-mentioned portions with different water permeability can be obtained, for example, by the following methods (a) to (c).

(a) A method of printing a non-water-permeable ink pattern on the surface of a water-permeable film or sheet using a known method.

Here, the water-permeable film or sheet includes various papers, various woven fabrics or non-woven fabrics, hydrophilic resin films such as cellophane film, polyvinyl alcohol film, and wafer film, and has a thickness of about 10 PTrL, for example.
~2 heads are used.

Non-aqueous inks include known hydrophobic resins such as vinyl chloride resin, vinyl acetate resin, acrylic resin, polyamide resin, polyester resin, polyurethane resin,
A solid vehicle containing nitrocellulose or the like is used. (b) A sheet in which a water-permeable film or sheet is partially modified to form a water-impermeable pattern.

The water-permeable film or sheet mentioned above in (a) is used here, and partial modification methods include heat treatment, partial irradiation with electromagnetic waves such as ultraviolet rays or electron beams, or hydrophobic resin. Partial impregnation etc. are used.

(C) A method in which a water-impermeable film or sheet is partially treated to form openings or water-permeable micropores.

Here, the non-water permeable film or sheet includes (a)
Materials made of the above-mentioned hydrophobic resins, or paper impregnated with these resins, non-woven fabrics or woven fabrics, metal plates, etc. are used.

Further, as a treatment method, methods such as cutting, mechanical perforation/punching, chemical continuous cell formation, and electric discharge treatment are used.
Among the water-permeable films or sheets mentioned above, if a polyvinyl alcohol film with remarkable elasticity and deformability is used,
It is also possible to partially provide a fine uneven pattern to the cement material layer in contact with this.

It should be noted that it is easy to understand that the portions with different water permeability formed on the sheet can be formed not only as water permeable portions and non-water permeable portions, but also as portions with high water permeability and portions with low water permeability, or a combination of these and non-water permeable portions. Good morning. Above, basic and particularly preferred embodiments of the cosmetic method of the invention have been explained.

However, the cosmetic method of the present invention can be used in various modifications within the scope of the present invention. The following are illustrative of some such variations. First, in order to partially change the water ratio of the unhardened inorganic material layer, as shown in FIG. The material layers 4 can also be laminated and cured.

If the material is allowed to cure in this state, portions 4a and 4b having different water ratios are formed in the thickness direction, and portions 1 and 2 having different material colors are formed on the surface. In this embodiment, the thinner the material layer 4 is, the more preferable it is in order to obtain a clear color difference pattern. Furthermore, in order to maintain the difference in water ratio due to suction into the substrate 5, it is preferable to suppress evaporation of water from the surface of the material. For this purpose, for example, the surface of the material layer 4 may be covered with a water-impermeable sheet. The following methods (a) to (d) are used to provide portions with different water absorption properties on the base. (a) A method in which a water-absorbing base is partially sealed with a known hydrophobic base sealer.
Since the base is treated with a sealer in order to apply a normal hydration-curable inorganic material, the above treatment can be carried out without introducing any special additional steps. Here, as the water-absorbing base, inorganic materials such as cement-based and gypsum-based materials, natural wood such as veneer and plywood, synthetic materials such as particle board and wood wool cement board, etc. are used. (b) A method of finishing the base surface by dividing it into a smooth surface and a rough surface.

That is, by providing a difference between a smooth surface and a rough surface, a difference is created in the surface layer, and a difference is caused in moisture absorption. (C)
A method of pasting a sheet with parts with different water permeability onto a water-absorbing base.

Here, as the sheet having portions with different water permeability, the sheet used in the above basic embodiment can be used. (
d) A method in which a layer of water-absorbing material is partially provided on a non-water-absorbing base. Here, the water-absorbing material layer includes ink, powder, film, or paper made of a water-swellable resin such as polyvinyl alcohol or cellulose resin, a layer of the above-mentioned water-absorbing base material, or a layer of a hydrating material such as cement or plaster, etc. is used. Further, in the case of the above embodiment (c), a decorative board can be obtained by peeling off a sheet having portions having different water permeability from the cured inorganic material layer, and using the surface from which this sheet is peeled off as a decorative surface.

Other methods for partially varying the water ratio of the uncured inorganic material include the following methods.

(b) Inorganic materials with different material compositions (powder, aggregate, additives) and water ratios are arranged in a pattern.

(Extension) After uniformly forming an uncured inorganic material layer, water is sprinkled or applied partially on the surface. (c) After uniformly forming the uncured inorganic material layer, the surface is partially forcedly dried.

Furthermore, if the decorative surface of the cured inorganic material thus formed is exposed to the air, there is a risk that the color difference will become unclear due to efflorescence.

Therefore, in order to improve long-term storage stability, it is preferable to form a protective layer on the decorative surface using a transparent or translucent water-impermeable material such as an acrylic resin emulsion, vinyl chloride resin, or glass. As described above, according to the present invention, a cured inorganic material layer is formed by a simple method of partially changing the water ratio of an uncured hydration-curable inorganic material layer containing a colorant into a desired pattern and curing the layer. It is possible to form patterned parts with different material colors on the material.

In particular, since it can be combined with a printing method, a variety of color patterns can be easily formed. Hereinafter, the present invention will be explained in more detail with reference to Examples.

Example 1 A concrete wall surface was coated with a cement mortar containing 5% by weight of an organic pigment (cyanine blue) and 5% by weight of an inorganic pigment (iron oxide yellow) added to white cement. A polypropylene film (thickness: 30 μm) in which micropores with a diameter of about 0.5 wn were formed on the pattern at a rate of 10 μm/d was attached.

When the film was peeled off after 24 hours, the area with micropores was yellow, and the area without micropores was a glossy green, and a good surface makeup was obtained due to the difference in color and gloss.

If left as is, secondary efflorescence may damage the color difference, so paints with acrylic resin as a solid vehicle may be used.
Spray painting was performed at a ratio of 0y/a (based on solid content). Example 2 After uniformly applying the base sealer to the existing exterior wall surface, use a plastering trowel to apply 5T of white resin-added cement mortar containing 1% of red glass grains! r! I applied it n thick.

When the mortar is soft, add 5g/Rrl of urethane ink.
A polyvinyl alcohol film (40 μm thick) gravure-printed at a ratio of 40 μm was attached to the mortar surface. When the film was peeled off after the mortar had hardened, the ink area was a glossy red-white color, and the other areas were dark red, giving a good color difference and gloss pattern. At the same time, in other areas where there was no ink, a fine uneven pattern was formed due to wrinkles due to the stretching and deforming force of the polyvinyl alcohol film.

Example 3 An acrylic emulsion base sealer was applied to an exposed concrete floor at a rate of 30 g/proof to create an abstract pattern.

On top of that, magnesium cement containing 2% of Kansuiseki (Kurokasumi) was poured to create a smooth finish. When cured, the area with the base sealer was finished in a glossy white color, and the area without the base sealer was finished in a white color with finely scattered kansuishi (black haze).

[Brief explanation of the drawing]

FIG. 1 is a perspective view of a cured inorganic decorative material obtained by the method of the present invention, and FIGS. 2 to 5 are cross-sectional views taken along the line ■-■ in FIG. Figure 2 shows a sheet with partially different water permeability, Figure 3 shows a laminate of a sheet and an inorganic material layer, Figure 4 shows the state after the sheet is peeled off, and Figure 5 shows a sheet with partially different water absorbency. and a laminate of inorganic material layers, respectively. 1... Light colored part, 2... Dark colored part, 3
...Sheet with partially different water permeability, 4...
...Inorganic material layer, 5... Base layer with partially different water permeability.

Claims (1)

[Scope of Claims] 1. By partially changing the water ratio of at least the surface layer of an uncured hydration-curable inorganic material layer containing a colorant into a desired pattern and curing, the material is added to the cured inorganic material layer. A cosmetic method for a hydration-curable inorganic material, which is characterized by forming patterned portions of different colors. 2. The method according to item 1 above, wherein the water ratio of the material layer is partially changed by laminating an uncured inorganic material layer and a sheet having partially different water permeability. 3. The method according to item 1 or 2 above, wherein the water ratio of the material layer is partially changed by laminating an uncured inorganic material layer on a substrate having partially different water absorption properties. 4. The method according to any one of Items 1 to 3 above, in which the color difference in the inorganic material layer is fixed by providing a water-impermeable transparent material layer on the inorganic material layer that has parts with different material colors.