JPS586512B2 - Bowling color lane - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method of painting colored bowling lanes.

Current bowling lanes have a transparent clear coating applied to the base, but since they are glamorous leisure facilities, there are many requests to add color to the lanes.

The present invention fully satisfies these demands. According to the method of the present invention, lanes having a wide variety of colored patterns can be obtained, and the various functions required for a bowling lane are not impaired at all. It is possible to obtain a bowling lane that can be maintained by operations similar to conventional ones.

Conventional bowling lanes are coated on the base by the following process.

(1) The process of applying 1 to 3 times as a base coat with varnish made of nitrocellulose and vinyl acetate resin dissolved in an organic solvent; (2) The process of applying varnish made of nitrocellulose dissolved in an organic solvent as a clear coat 3 times (however, each application The amount is about 6.5 g/m2 as solid content).

In addition, bowling lanes are subject to very strong impacts due to their nature, so they require a high degree of impact resistance, as well as surface smoothness and volume stability, and usually the lanes must be repainted once every two months. maintained by.

In this repainting, the base coat layer remains and the upper clear coat layer is removed by a peeling machine, and a new clear coat is applied two to four times to regenerate the lane.

The present invention relates to a method of painting a colored bowling lane,
The process involves applying cellulose lacquer on a bowling lane that has been coated with an uncolored transparent undercoat layer for 20 to 20 minutes.
The process consisted of a step of providing an uncolored transparent intermediate coat layer of 35 g/m2, a step of providing a transparent colored layer by applying a colorant-containing cellulose lacquer, and a step of providing a surface layer with an uncolored transparent paint.

In the steps related to the present invention, the step of providing an intermediate coating layer is particularly important.

If the weight of this intermediate coating layer is 20 g/m2 or less, when the upper layer is removed for recoating, leaving the undercoating layer behind, the colored transparent layer will partially remain, resulting in a spotted pattern on the surface.

As a result, if repainting is performed on the bowling lane as it is, it will be difficult to achieve a uniform coating, and the lane will have shading, which will significantly spoil the aesthetic appearance of the bowling lane.

At this time, if repainting changes the hue or applies clear coating, this will be a fatal obstacle.

In this way, if the intermediate coating layer under the transparent colored layer is made somewhat thicker as in the present invention, the intermediate coating layer can be sufficiently scraped off without the risk of damaging the undercoat layer during peeling work for repainting. No colored layer remains and smooth polishing becomes possible.

Furthermore, there are various problems when the intermediate coating layer has a thickness of 35 g/m2 or more.

(1) If the amount of coating is large, the drying time of the coating layer becomes extremely slow.

Particularly when using a cellulose-based clear lacquer with good solvent releasability as in the present invention, if a large amount is applied, a dry film will be formed on the surface first, making it difficult to remove the internal solvent. As a result, the film cannot be completely dried even if left for a long time, resulting in low impact resistance.

(2) In order to eliminate the above-mentioned problem, it is time-consuming to apply the solid content over 35g/m2 in several batches, and it creates a lane that is difficult for the bowl to run on. It is also difficult to adjust by increasing or decreasing the amount of lane conditioner applied.

Cellulose resins used for the intermediate coating include nitrocellulose, ethylcellulose, acetylcellulose, etc., and mixtures thereof, with nitrocellulose being particularly preferred.

Further, resins having a usual plasticizing effect such as ethylene/vinyl acetate copolymer resin, alkyd resin, and cellulose acetate butyrate can also be added and mixed as appropriate.

In the production of lacquer, the above resins are mixed with toluene, isopropyl alcohol, ethyl acetate, ethyl cellosolve,
A cellulose lacquer is obtained by dissolving about 10 to 15% by weight in a commonly used organic solvent such as methyl cellosolve, anone, or ketone.

The colored cellulose lacquer used for forming the transparent colored layer in the present invention means that it has some color in contrast to the transparent clear lacquer.

Coloring agents for this purpose include ordinary organic pigments, inorganic pigments, and mixtures thereof, as well as aluminum powder, silicon powder, iron powder, etc.Furthermore, even if they themselves are colorless, when added to the lacquer and applied, a certain color is discovered. Anything like this can be used.

However, in order to expect sufficient transparency, light resistance, and bleed resistance of the colored layer, it is desirable to use a series of pigments called so-called organic high-grade pigments.

Examples of these pigments include phthalocyanine pigments, quinacridone pigments, and azo pigments.

Examples of inorganic pigments include chrome green, titanium oxide,
Navy blue, molybdenum red, etc. are used as appropriate.

The colored layer coated with these colored lacquers can express various colored effects as desired, such as beautiful colors such as red, blue, and yellow, and patterns with metallic luster.

In the present invention, it is important that the transparent colored layer has sufficient transparency and bleed resistance.

That is, (1) transparency is required in order to take advantage of the beautiful wood grain and straight grain of the wood base and to avoid making "spats" invisible.

The colorant concentration in the paint is 0.3 in consideration of coloring power and transparency.
~1.2% by weight, ie, 2 to 12% by weight based on the solid content of the colored layer, is suitable.

(2) Bleed resistance is required because the pigment transfers to the intermediate coat layer or the undercoat layer below it and colors that area, so it is virtually impossible to repaint the intermediate coat or higher after stripping. This is to prevent it from becoming possible.

The vehicle and composition of the colored cellulose lacquer can be the same as those of the intermediate clear lacquer.

In the present invention, the surface layer of the bowling lane must satisfy various conditions as described below due to its properties, and these conditions include (1) quick drying, (2) compatibility with lane conditioner, ( 3) Impact resistance, (
4) gloss, (5) bleed resistance, etc., and those used as the above-mentioned intermediate coating clear lacquer are suitable as those that satisfy these properties, but nitrocellulose lacquer is particularly preferred due to its properties.

Other resins such as urethane resins can also be used satisfactorily due to their excellent mechanical strength.

The undercoat layer is provided for the same purpose as a filler coating in ordinary wood coating, and is applied to the surface of the wood base to improve its smoothness and adhesion with intermediate coats, etc.

Therefore, any known vehicle is suitable for this, such as lacquers of vinyl acetate, vinyl chloride, polymers or copolymers of vinyl acetals, aminoalkyd resins, cellulose ethers such as cellulose acetate butyrate, cellulose esters and mixtures thereof. ing.

The coating of each layer in the present invention is carried out using a dedicated applicator, and the coating is applied one to three times as appropriate.

It is necessary to dry thoroughly for 1 to 2 hours after each application.

Next, the present invention will be explained in detail with reference to Examples.

Example 1 An undercoat, intermediate coat, colored paint, and surface paint were prepared with the compositions shown below.

Next, the wooden base for the bowling lane was coated with an undercoat twice, an intermediate coat with a solid content of 20 g/m2, a colored coat twice, and a surface coat once with "Lane" manufactured by American Brunswick. A colored bowling lane is obtained by sequentially applying the mixture using an "applicator".

Undercoat vinyl acetate resin 28 parts by weight Cellulose acetate butyrate 2 Butyl acetate 20 Ethanol 15 Butanol 10 Xylene 10 Isopropyl alcohol 15 Silicone oil Trace amount 100 Intermediate paint Nitrocellulose 8 parts by weight Alkyd resin 6 Toluene 30 Ethyl acetate 34 Butyl acetate 20 Castor oil 2 100 Colored paint (red) Lionogen Red B-3 0.5 parts by weight (quinacridone pigment manufactured by Toyo Ink Manufacturing Co., Ltd.) Nitrocellulose
8.0 Alkyd resin 6.0 Toluene 30.0 Ethyl acetate 34.0 Butyl acetate 20.0 Castor oil 2.0 Colored paint (red) 100.5 parts by weight Surface paint Same composition as intermediate coating Example 2 Example 2 Obtain colored lanes in the same way as method 1.

However, the intermediate coating should be applied at a solid content of 25 g/m2.

Undercoat paint Same composition as undercoat paint in Example 1 Intermediate paint Nitrocellulose 8 parts by weight Ethylene/vinyl acetate copolymer resin 3 Toluene
30 ethyl acetate
36 Butyl acetate 20 Dioctyl phthalate 3100 Coloring paint (yellow) Lionol Yellow FGG 0.7 parts by weight (Azo pigment manufactured by Toyo Ink Manufacturing Co., Ltd.) Nitrocellulose 8.0 Ethylene/vinyl acetate copolymer resin 3.0 Fatty toluene 30.0 ethyl acetate
36.0 Butyl acetate
20.0 Di-octyl phthalate 3.
0100.7 Surface paint Same composition as intermediate paint Example 3 A colored lane is obtained in the same manner as in Example 1.

However, the intermediate coating should be applied so that the solid content is 30g/m2.

Undercoat ethyl cellulose 5 parts by weight Vinyl acetate resin 27 Toluene 10 Butyl acetate 20 Isopropyl alcohol 20 Ethanol 18 100 Intermediate paint Cellulose acetate butyrate 8 parts by weight Toluene
30 Ethyl acetate 38 Butyl acetate 20 Castor oil 4 100 Coloring paint (green) 4447 Cyanine Green 0.9 parts by weight (phthalocyanine pigment manufactured by Toyo Ink Manufacturing Co., Ltd.) Cellulose acetate butyrate 8.0 Toluene 30.0 Ethyl acetate 38. 0 Butyl acetate 20.0 Castor oil 4.0 100.9 Surface paint Same composition as intermediate coat Recoating Next, suitability for recoating of the colored lanes obtained in the above Examples was tested as follows.

First, the undercoat layer was left behind and the intermediate coat layer and above were scraped off using a Lane paint layer peeling machine "Drum Sander" manufactured by American Lincoln Co., Ltd., and the peeled surface was observed.

As a result, almost all of the paint was peeled off from the intermediate coating layer, there was no scraping of the colored layer, and the smoothness, transparency, and repaintability were all good.

Further, the color lane obtained in Example 1 was peeled off from the intermediate coating layer as described above, and the intermediate coating according to Example 2 was applied.
By sequentially repainting the colored paint and surface paint, we were able to repaint a colored bowling lane with excellent color tone, smoothness, and transparency.

Claims (1)

[Claims] 1. 20 to 35 g of cellulose lacquer is applied onto the bowling lane, which has been coated with an uncolored transparent undercoat layer.
A method for coloring a bowling lane, comprising the steps of providing an uncolored transparent intermediate coating layer of m2, providing a transparent colored layer by applying a colorant-containing cellulose lacquer, and providing a surface layer with an uncolored transparent paint.