JPH0444900B2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a container having a ceramic-like appearance and a method for manufacturing the same, and more particularly, to a method for producing a container such as a bottle having a ceramic-like appearance in large quantities. Concerning the method of manufacturing containers. The containers manufactured according to the present invention can be used in the same way as conventional containers such as glass, cans, or ceramic bottles or cans, and can be used as containers for liquid products such as alcoholic beverages, beer, and seasonings. It can also be used as a decorative container such as a vase.

[Technical background and explanation of conventional technology]

Containers such as ceramic bottles are used to contain liquid products such as alcoholic beverages, beer or seasoning liquids and are in high demand as they suit the diverse tastes of consumers. The manufacturing process involves many steps, takes a considerable amount of time, and requires a firing process at a high temperature of around 1000℃.
The finish of the final product cannot be confirmed until after this firing. For this reason, manufacturing containers such as ceramic bottles requires many years of experience and skill, and mass production thereof is difficult.

On the other hand, improvements in manufacturing technology for bottles made of glass, plastic, or metal have made it possible to mass-produce bottles of the same shape.

The present inventors have been conducting research on inorganic paints for many years, with the intention of forming a coating layer with the appearance and properties of ceramics on bottles made of glass, plastic, or metal. It was discovered that by layering the calcareous coating layer with a transparent plastic surface coating, it is possible to form a coating layer that has a smooth, glossy appearance and properties similar to those of ceramics.Based on this knowledge, the present invention was developed. Reached.

[Object of the invention and summary of the invention]

An object of the present invention is to provide a container that can be mass-produced and has a ceramic-like appearance, and more specifically, a container that has a ceramic-like appearance that has great dimensional stability and can be manufactured into a product in a short time. Our goal is to provide the following.

The present invention is directed to a container base material; a base coating layer on the surface of the container base material comprising a hydraulic extender pigment, a coloring pigment, and an adhesive component; and a transparent and glossy surface coating on the surface of the base coating layer. This container has a ceramic-like appearance and is characterized by being composed of layers.

The container having a ceramic-like appearance according to the present invention is produced by applying a coating composition obtained by dispersing a hydraulic extender pigment, a coloring pigment, and an adhesive component in water to the surface of the base material of the container to form a base coating layer. It is manufactured by forming a transparent and glossy surface coating layer by applying an acrylic resin or urethane resin emulsion to the surface of the base coating layer. The base material of the container can be a glass bottle, a plastic bottle, a metal can such as iron, or a bamboo tube obtained by cutting the internodes.The hydraulic extender pigment is slaked lime. ,
Dolomite plaster or gypsum plaster can be used, and the adhesive component can be methylcellulose, ethylcellulose or carboxymethylcellulose. Fiber waste can also be incorporated into the coating formulation that forms the base coating on the surface of the container substrate.

Since the capacity of the container of the present invention is the capacity of the base material of the container, as long as a material with high dimensional stability is used as the base material of the container, the dimensional stability is high and the manufacturing process is simple, so mass production is possible. can do. Furthermore, it is possible to draw letters, designs, or patterns in a color different from that of the basic coating layer on the top surface of the basic coating layer, and form a surface coating layer on top of that, making it possible to produce beautiful ceramic-like containers. can.

[Specific description of the invention]

The base coating layer in this specification is a coating layer that is formed directly on the base material of the container, and is a coating layer that forms a surface with a ceramic-like appearance, and the surface coating layer in this specification refers to the base coating layer. It is a transparent coating layer formed on the surface of a ceramic material, which forms a smooth and glossy surface with a ceramic-like appearance.

In the production of containers having a ceramic-like appearance according to the present invention, a base coating layer is applied by applying a coating formulation forming a base coating layer to the surface of a substrate forming the body of the container (container base material). Form. After the base coating layer is dried and cured, its surface is smoothed by polishing with an abrasive paper or abrasive material such as sandpaper. There are no letters, symbols, designs, etc. on the outside of the container.
If decoration, such as a pattern or decoration, is required, the basecoat layer may be coated with a coating formulation of a similar composition but of a different color to the coating formulation forming the basecoat layer. After painting is carried out and these painted layers have dried and hardened, the surface is smoothed in the same manner as described above. The base coating layer thus formed forms the base of the container having a ceramic-like appearance. The base coat layer is then applied with a coating formulation which forms a transparent, glossy top coat layer and dried. The surface coating layer thus formed is transparent and shiny, forming a shiny surface on the container with a ceramic-like appearance.

The base material for the container can be any material that the base coating layer will adhere to, but bottles such as glass, hard plastic, thermosetting resin, or iron can be used. ,Bottle,
It is preferable to use a pot or bowl or a bamboo tube cut at the internodes.

The application formulation forming the base coat is water 800%
~1400g, slaked lime 700~1200g, coloring pigment 3~
8 g and 2-7 g of methyl cellulose are added and mixed well to prepare, but 1-2 g of nylon, vinylon, polyester or other fiber waste can also be mixed therewith. The incorporation of fibrous waste into the coating formulation helps the coating formulation to adhere to the container substrate, especially when the coating formulation is applied to the container substrate by the dipping method. suitable.

A coating formulation can also be prepared by adding gypsum plaster, 3 to 8 g of colored pigment and 1 to 4 g of methylcellulose to 600 g of water and mixing well. These coating formulations can be applied to the container substrate by any of the conventional application means such as brushing, spraying or dipping.

The base material of the container on which the coating layer is formed by applying the coating formulation is left at room temperature for one hour or more to dry and harden the coating layer to form a base coating layer. When painting letters, symbols, designs, patterns, or decorations on containers that have a ceramic-like appearance, smooth the surface of the base coating layer with abrasive paper such as sandpaper or other abrasive material. and using a different color coating formulation than the base coat layer.
These paintings can be done. After these decorations have dried and hardened, acrylic resin emulsion or urethane resin emulsion is sprayed to a thickness of 50 to 150μ on top of this base coating layer.
A coating layer is formed and dried at room temperature to form a transparent and glossy surface coating layer, completing the production of a container with a ceramic-like appearance.

When a bamboo tube obtained by cutting the internodes of bamboo is used as the base material of the container, a base coating layer and a surface coating layer can be formed on the outer surface or both the inner and outer surfaces of the bamboo tube. On the inner surface of the bamboo tube, the surface coating layer may be omitted and only the base coating layer may be provided, or the base coating layer may be omitted and only the surface coating layer may be provided. By providing a coating layer on the inner surface of the bamboo tube, the waterproof ability of the inner surface is improved, making it convenient for use as a flower tube.

EXAMPLES Below, the present invention will be explained in more detail with reference to Examples, but the present invention is not limited to these examples.

Example 1 900 g of slaked lime, 4 g of methyl cellulose, green pigment (trade name: Bayferrox, manufactured by Bayer)
5g and nylon scraps (diameter: 0.1mm, length: 10mm)
4 g was added to 1100 g of water and stirred well to obtain 2013 g of a green coating formulation.

The coating formulation was placed in a circular vat and the glass bottle (diameter: 60 mm, height to shoulder: 110 mm, overall height: 200 mm) was immersed in the coating formulation for 15 seconds while rotating at 22 rpm. The glass bottle was taken out and dried at room temperature (32°C) for 60 minutes. The surface of the glass bottle coated with this green coating formulation was sanded with #200 sandpaper to smooth the coated surface, and then a transparent urethane resin emulsion (product name: Laughton Clear, Suzuka Paint) was applied. A bottle with a green ceramic-like appearance was obtained by spraying paint (manufactured by S.A.) and drying for 10 minutes at room temperature.

The thickness of the green coating layer on this bottle is 0.6mm,
The thickness of the transparent urethane resin coating layer was 75 μm, and the surface was smooth and glossy, giving it a solid appearance similar to that of ceramics.

Example 2 Add 1200 g of gypsum plaster (trade name: B-YN Plaster, product of Yoshino Gypsum Co., Ltd.), 2 g of methyl cellulose, and red pigment (trade name: Bayerox, manufactured by Bayer) to 900 g of water, stir well, and apply red color. 2100 g of the formulation were obtained.

This coating formulation was placed in a circular vat, a glass bottle (diameter: 60 mm, height to shoulder: 110 mm, overall height: 200 mm) was immersed, and the coating formulation was applied to the surface of the glass bottle by rotating at 15 rpm for 10 seconds. After the material was evenly attached, the glass bottle was taken out and dried at room temperature (28°C) for 60 minutes. The surface of the glass bottle coated with this red coating formulation was sanded with #180 sandpaper to make the coated surface smooth, and then a white pigment (trade name: Bayferrox, manufactured by Bayer) was applied. Write the word ``Kobobuki'' with the same coating formulation as above, and then leave it at room temperature (28
After drying for 60 minutes at ℃), the coated surface was sanded with #180 sandpaper.
The coated surface was smoothed. A methyl acrylate emulsion is spray-coated onto the coated surface of the glass bottle to form a transparent and glossy coating layer, which is dried for 10 minutes at room temperature to produce a bottle with a ceramic-like appearance. Obtained.

Example 3 A bottle having a green ceramic-like appearance was obtained in the same manner as in Example 1 except that a bottle-shaped aluminum can container was used instead of a glass bottle.

Example 4 A bottle made of hard vinyl chloride resin was used instead of the glass bottle, and a bottle having a ceramic-like appearance was obtained in the same manner as in Example 2.

Example 5 The coating formulation of Example 1 was placed in a circular vat and a bamboo tube container (diameter: 50
mm, total length: 250 mm) in the coating formulation for 20 seconds while rotating at 22 rpm to apply the coating formulation to the inner and outer surfaces of the bamboo tube. Dry for a minute. After sanding the outside surface of the bamboo tube coated with this green coating formulation with #200 sandpaper to smooth the surface, a transparent urethane resin emulsion (product name: Laughton Clear, Suzuka Paint) was applied. A vase with a green ceramic-like appearance was obtained by spray painting the vase with a green ceramic-like appearance.

〔Effect of the invention〕

Containers with a ceramic-like appearance can be mass-produced.

There is no need for high temperature treatment during the manufacturing process.

The dimensional stability before and after the formation of the ceramic-like coating layer is high, so there is no deviation in capacity.

You can paint freely.

Claims (1)

[Scope of Claims] 1 Container base material; base coating layer of the container base material consisting of a hydraulic extender pigment, a coloring pigment, and an adhesive component;
and a container having a ceramic-like appearance, comprising a surface coating layer of a transparent and glossy resin covering the surface of the base coating layer. 2. Having a ceramic-like appearance as set forth in claim 1, wherein the base material of the container is a jar or bottle made of a material selected from the group consisting of glass, plastic, metal, and bamboo. container. 3. A container having a ceramic-like appearance according to claim 1 or 2, wherein the hydraulic extender pigment is slaked lime or gypsum plaster. 4. A container having a ceramic-like appearance according to any one of claims 1 to 3, wherein the adhesive component is selected from the group consisting of methylcellulose, ethylcellulose, and carboxymethylcellulose. . 5. According to any one of claims 1 to 4, wherein the transparent and glossy resin surface coating layer is a transparent and glossy surface coating layer of methyl acrylate resin or urethane resin. A container having a ceramic-like appearance as described. 6 Forming a base coating layer by applying a coating composition obtained by dispersing a hydraulic extender pigment, a coloring pigment, and an adhesive component in water to the base material of the container; A method for producing a container having a ceramic-like appearance, characterized by coating a resin or urethane resin emulsion to form a transparent and glossy resin surface coating layer. 7. Having a ceramic-like appearance as set forth in claim 6, wherein the base material of the container is a jar or bottle made of a material selected from the group consisting of glass, plastic, metal, and bamboo. How to make containers. 8 Claim 6, characterized in that the hydraulic extender pigment is slaked lime or gypsum plaster.
A method for producing a container having a ceramic-like appearance as described in item 1 or item 7. 9. A container having a ceramic-like appearance according to any one of claims 6 to 8, wherein the adhesive component is selected from the group consisting of methylcellulose, ethylcellulose, and carboxymethylcellulose. Production method. 10. A method for producing a container having a ceramic-like appearance according to any one of claims 6 to 9, characterized in that fiber waste is mixed into the coating composition. 11. Production of a container with a ceramic-like appearance according to any one of claims 6 to 10, characterized in that the coating formulation forming the basic coating layer is applied by dip coating. Law. 12. Production of a container having a ceramic-like appearance according to any one of claims 6 to 11, characterized in that an acrylic resin emulsion or a urethane resin emulsion is applied by spraying. Law.