JPS59106963A - Pasted coating for preventing mold using powdered body paintand its manufacture - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides anti-mold adhesive coating using powder coating.
and its manufacturing method. More specifically, the present invention relates to an anti-mold adhesive coating film using a powder coating that is extremely easy to apply on-site and has high coating film performance such as durability and chemical resistance. In addition, the coating film referred to in the present invention refers to a cured film of a liquid paint or a powder paint.

Conventionally, anti-mold paints are made by mixing an anti-mold agent (hereinafter referred to as an anti-mold agent) into a liquid paint that is either water-based or solvent-based, and then applying this to the object and allowing it to harden. Met. However, the application of liquid paints involved highly sophisticated techniques and difficulties, as the liquid paints caused splashes of paint, took a long time to dry, and used solvents that were harmful to the human body. Furthermore, when applying conventional anti-mold paints to areas where mold has already grown, it is necessary to perform a double process of first sterilizing the mold and then applying the anti-mold paint. The problem was that it destroyed the anti-fungal paint film and continued to reproduce. Powder coatings, on the other hand, have high coating IIσ performance such as durability and chemical resistance, so they are used today in harsh applications that are difficult to use with liquid coatings, but they require specialized coating equipment and cannot be applied on-site. However, it was not a paint that anyone could use.

The purpose of the present invention is to make it extremely easy to apply on-site without requiring the sophisticated techniques and difficulties required when applying conventional liquid anti-mold paints, and to apply it to areas where mold has already grown. There is no need to kill mold in advance,
To provide an anti-mold adhesive coating film using a powder coating which can be applied directly onto mold to achieve the purpose of anti-mold and has high coating performance such as durability and chemical resistance.

The present invention includes (1) one side of a thin and flexible R male base material mixed with an antifungal agent and coated and impregnated with a sedative or adhesive;
If necessary, this material is coated with a sebarator and impregnated, and a liquid paint mixed with an antifungal agent is coated and impregnated on one side of the remaining fibrous base material, and then a powder paint that is heated and melted and hardened is applied on top of that. An anti-mold adhesive film that uses a layered powder coating.

Provides J9 lase gravel {4ν approximately.

The fibrous base materials used in the present invention include nonwoven fabrics, woven fabrics,
Suitable materials include non-woven fabric and plastic film laminated together, flexible and strong paper, etc. Suitable materials for the nonwoven fabric and woven fabric include polyester, polyamide, acrylic, polyethylene, polypropylene, fiberglass, and fiberglass.

The thickness of the fibrous base material is suitably about 10 to 300 microns. If it is thinner than 10 microns, the strength is insufficient. If D+1 is 300 microns, the flexibility will be insufficient.

The liquid paint used in the present invention must have flexibility after curing. Specifically, urethane resin-based, phthalic acid-based, rubber-based paints, and the like are preferred. Adding a plasticizer to the paint will make it more flexible, such as vinyl chloride resin paint.

The thickness of the liquid paint layer is usually about 30 to 100 microns. A portion of the liquid paint impregnates the fibrous base material, and also penetrates between the fibers without gradual release.

Suitable methods for applying and impregnating the surface of the fibrous base material with the liquid paint include spraying, a roll coater, a flow coater, a knife coater, and the like.

The powder coating used in the present invention must have curing machine flexibility. -X Physically,
Ethylene vinyl acetate, polyurethane/polyolefin powder coatings, etc. are suitable.

The thickness of the powder coating layer is usually about 30 to 200 microns. The interface between the powder coating layer and the underlying liquid coating layer after curing is heated and melted, so that the interface is not clearly separated but is mixed together. Mixing an antifungal agent into the resin of the powder coating is also more suitable for the purpose of the present invention.1゜Methods for heating and melting the powder coating include a drying oven for liquid coatings, a far-infrared device, or It is appropriate to use a hot air drying oven. The conditions in the drying oven are a temperature of 100°C to 20°C.
The temperature is about 0°C and the time is about 1 minute to 20 minutes. Furthermore, before heating and melting, it is possible to blow off the excess powder paint with an air blower or the like and collect it by suctioning it with a vacuum or the like to obtain an economical and beautiful uniform coating surface. By heating and melting the diameter, the powder coating will harden and form a continuous surface if it is naturally cooled.

The adhesives or pressure-sensitive adhesives used in the present invention include those that are activated by applying water or alcohol such as vinyl acetate and glue, heat-sensitive adhesives such as acrylic, and sensitive adhesives such as acrylic and rubber. What is called a pressure-sensitive adhesive is preferred. In any case, if it is not flexible after hardening, it will be inconvenient to store, transport, and install.

If the adhesive or pressure-sensitive adhesive is colored with dark pigments or dyes such as black, dark brown, or dark green, such as carbon blank, when the product of the present invention is attached to an object, the surface of the object will become dirty. It is possible to completely hide it. For example, if a white wall (object) has black mold mottled on it, you can remove the ugly mottled mold by pasting an invented product with an adhesive or adhesive colored black or dark. It is possible to completely hide the Appropriate mixing ratio of pigment or dye is about 3 to 10 coulometric ratios. If the amount is less than this, the hiding power will be poor and the purpose of mixing will not be achieved sufficiently, and if it is too much, the adhesive force of the adhesive or pressure-sensitive adhesive will be adversely affected.

If adhesive is used, a separator is often not necessary. When using adhesive remover, a separator is required to cover and protect this side. The thickness of the adhesive or pressure-sensitive adhesive layer is usually about 50 to 100 microns. A portion of the adhesive or pressure-sensitive adhesive is impregnated into the fibrous base material and is infiltrated evenly between the fibers.

The antifungal agents used in the present invention include 2-(4-thiazolyl)-bennimidazole (abbreviated as thiabendazole), Prebentol (product name manufactured by Bayer AG, West Germany), and Paina' Particularly preferred are compounds such as the following: safety, durability (longevity of medicinal efficacy), heat resistance, and remarkable efficacy against mold. Vinadine has particularly strong medicinal effects, and for safety reasons, it cannot be mixed into paints. However, it is safe when applied to adhesives or adhesives, and has a long track record in the United States. By mixing a large amount,
It is effective enough to kill mold that comes into contact with adhesives and adhesives.

The ratio of the antifungal agent mixed into the liquid paint, adhesive, or pressure-sensitive adhesive is approximately 0.05 to 1% by weight of the solid content. (
In the case of paint, it is the total weight of the solid content of powder paint and liquid paint and the weight ratio of the antifungal agent. ) If the amount of contamination is smaller than this, the anti-mold function will be desired, and there is nothing to be gained even if the amount is larger than this. The mixing method is toluene,
It is dissolved in a solvent such as methyl ethyl ketone and/or methyl ethyl ketone, and mixed into a solvent used for liquid paints, adhesives, or adhesives. 2 The separator used in the present invention may be any ordinary separator used for coating and protecting adhesives, and is not particularly limited.

The thickness of the separator is usually about 20 to 100 microns. Therefore, the final product of the present invention has a thickness of approximately 80 to 400 microns without a separator, and approximately 100 to 500 microns with a separator.

The present invention will be explained below with reference to the drawings.

FIGS. 1 to 3 are cross-sectional views of anti-fungal adhesive coatings produced by three manufacturing methods using the powder coating of the present invention. In the figure, 1 is a thin and flexible fibrous base material;
2 is a liquid paint layer mixed with an anti-mold agent, 3 is a powder paint layer, 4 is an adhesive or adhesive mixed with an anti-mold agent, 5
The second liquid paint layer containing an anti-fungal agent, 6, is a separator.

The first manufacturing method of the present invention is to coat and impregnate one side of a thin, flexible fibrous base material with an adhesive (11) or pressure-sensitive adhesive mixed with an anti-cold agent, and if necessary, cover and protect this with a separator. A liquid paint mixed with an antifungal agent and having flexibility after curing is applied and impregnated onto the remaining side of the fibrous base material, and during the uncured period or after hardening, the liquid paint surface has flexibility after hardening. Leveling powder paint-VC
This is a method for producing an anti-mold adhesive film using a powder coating that is applied by spraying and then heated and melted.

If this manufacturing method is explained with reference to FIG. 1 Wc, the fibrous base material 1
An adhesive or pressure-sensitive adhesive 4 is applied and impregnated on one side of the. If necessary, this surface is covered and protected with a separator 6. Next, the remaining one side of the fibrous base material 1 is coated and impregnated with the liquid paint 2. Next, while the liquid coating material 2 is not being cured or after it has hardened, (a) the powder coating material 3 is dropped and scattered to make it adhere, or (b) the powder coating material 3 is charged with static electricity and made to adhere to it. After heating and melting this, if it is naturally cooled, the powder coating 3 will harden and form a continuous surface.

The second manufacturing method of the present invention is to coat and impregnate one side of a thin, flexible fiber (12) base material with an adhesive or pressure-sensitive adhesive mixed with an antifungal agent, and if necessary, cover and protect this side with a separator. A mixture of a powder coating that is flexible after curing is mixed into a liquid coating that is flexible after curing is mixed with an antifungal agent on one side of the fibrous base material that remains above, and the mixture is impregnated and heated to melt and harden. This is a method for producing an anti-mold adhesive film using powder paint.

This is a method in which a mixture (2+3) of a liquid paint 2 and a powder paint 3 is prepared in advance, and this is applied to the remaining side of the fibrous base material 1 coated and impregnated with an adhesive or adhesive 4. In this case, a portion of the liquid paint 2 impregnates the fibrous base material 1, and penetrates evenly between the fibers. On the other hand, there is almost no infiltration between the powder coating fibers,
It is evenly attached to the fibers. The mixing ratio of powder paint 3 to liquid paint 2 is usually 0.5:1 to 1.5:1 in terms of dipping ratio.
The ratio is about 1:1, preferably about 1:1. If this is heat-welded and naturally cooled, the powder coating 3 will harden on the liquid coating 2 to form a continuous surface.

To explain this manufacturing method with reference to Fig. 2, since a mixture (2+3) of liquid paint 2 and powder paint 3 is used, the liquid paint 2 is thinly and uniformly adhered to the top surface of the powder paint 3. is the same as in FIG. According to this manufacturing method, a coating film as excellent as that obtained by the first manufacturing method can be obtained.

The third manufacturing method of the present invention is to coat and impregnate one side of a thin, flexible fibrous base material with an adhesive or pressure-sensitive adhesive mixed with an antifungal agent, and if necessary, cover and protect this side with a separator.
A first liquid paint mixed with an antifungal agent and having flexibility after curing is applied and impregnated on the remaining side of the Joki horizontal fibrous base material,
During the uncured period or after curing, a mixture of a second liquid paint mixed with an antifungal agent and having flexibility after hardening and a powder paint having flexibility after hardening is applied to the surface of the liquid paint; This is a method for producing an anti-mold adhesive film using a powder coating that is heated and melted and hardened.

According to this third manufacturing method, a coating film that is even better than that obtained using the second manufacturing method can be obtained.

This manufacturing method will be explained with reference to FIG. 3. It is the same as the case shown in FIG. 2 except that the third liquid paint 5 is interposed between the first liquid paint 2 and the powder paint 3.

Next, a method of using the product of the present invention will be described.

The products of the present invention are particularly valuable when used in areas where powder coating was not possible in the past. In other words, walls and ceilings where mold can easily grow, such as bathrooms, dressing rooms, kitchens, and Kitamukai Sen's rooms in ordinary homes, and mold-prone areas such as food factories, warehouses, inn kitchens, and hospital operating rooms. This includes the walls of buildings that should not be exposed. In use, if the product of the invention does not have a separator, the adhesive is subjected to the necessary treatments to activate it. That is, it is coated with water or alcohol (15) or heated with an iron or hair dryer. If the product of the present invention has a separator, it is only necessary to remove the separator and press the exposed adhesive to the object.

Next, the present invention will be explained in detail.

As mentioned above, the product of the present invention is extremely easy to ellipse on-site. That is, the paint does not splatter, and no drying time is required. No solvents harmful to the human body are used.

Also, unlike conventional powder coating, it does not require specialized equipment. In addition, since the coating film of the present invention has a continuous layer on the surface of the powder coating having high coating performance, it has excellent durability and
It has particularly good chemical resistance, and since it contains a mold-proofing agent in the coating, it can prevent mold from growing. Furthermore, by using a strong anti-mold agent in the adhesive or pressure-sensitive adhesive, it is possible to kill mold growing on the surface of the adhesive, which is impossible with conventional anti-mold paints.

Furthermore, color the adhesive or adhesive black or dark color (16
) By doing so, you can completely hide the ugly color of mold.

Moreover, the product of the present invention is extremely flexible and has high tensile strength due to the fibrous base material, so even if the surface of the fruit has unevenness, it adapts well to the unevenness and can reproduce the shape well. It is possible to obtain a surface finish that is very similar to that obtained when applying liquid paint.

Example 1 ■ Fibrous wood used...Product name: Unicell.

Manufacturer: Teijin Co., Ltd. Product number: BTO403W0 Material:
Polyester fiber 70CX + polyethylene fiber 309I
;. Shape: Non-woven fabric. Thickness: Approximately 50 microns ■ Liquid paint as soon as it is used...Product name: New Bodelac. Manufacturer: Nippon Paint Co., Ltd. Material: Industrial phthalate paint. Color: white. Solvent used for this: Toluene and xylene■ Nine powder paints used...Product name: Revazint.

Manufacturer: West German Bayer AG. Material: Ethylene vinyl acetate. Particle size: average 100 microns. Color: white■ Second liquid paint used...same as ■■ Adhesive used...Product name: Nistruct Bond 5BX-50
07゜Manufacturer: Mitsui Toatsu Co., Ltd. Material Niacrylic acid ester. Color: Colored black with carbon blank. Solvents used: ethyl acetate, toluene, IPA.

■ Antifungal agent used in liquid paint...Product name: Metasol TK 100° Manufacturer: Merck & Co., USA. Material:
2-(4-thiazolyl)-bennimidazole. The solvent used for this was dimethyl ethyl ketone. Amount used; 1
% (weight ratio) ■ Anti-mold agent used in adhesive...Product name: Vinadine. Manufacturer: Pentron, USA.

Material: 10-10'-oxybisphenoxyarsine. Solvent used for this: methyl ethyl ketone. Amount used = 0.1% (weight ratio)■ Amount of adhesive applied to and impregnated into nonwoven fabric...Thickness approximately 100 microns. Make sure that it does not seep to the other side of the non-woven fabric.

■ Amount of liquid paint applied to and impregnated into non-woven fabric...thickness approximately 50 microns. Make sure that the fibers of the nonwoven fabric are not visible.

[F] Method of spraying and adhering powder paint to a liquid paint layer... While the liquid paint is not hardening, it is discharged in the form of a mist from a nozzle, and the excess is blown off with an air blower.

■ Mixing ratio (weight ratio) of powder paint and liquid paint... 1
:1 ■ Conditions and method for heating and melting powder coatings...conditions: 15
5℃, 2 minutes. Method: Hot air thermostat.

Using the above materials and conditions, the product of the present invention was manufactured according to the method of manufacturing method 1-3 described above, and the following tests were conducted.

〔test〕

■ Tensile strength...JISK7113゜23゜2
℃100±10%/- ■ Abrasion resistance...Qi/ζ-abrasion test.

■ Chemical resistance...The results were measured after immersion in the following chemicals for 15 days: H, So. 10%, T (No, 10 I, H010%, NaOH10%, NH40T (Cone)
.

T(2(), 30%, CH, C100)I 20%, kerosene, saline 5%, neutral detergent 10%, petroleum, mineral oil ■
Weather resistance...Sunshine weather offter 2000 hour test■ Heat cycle test...■ Boiling test・
...Boil in tap water for 2 hours.

■ Adhesion test...20% during test, 100% in length
% and reciprocated once on an 8US304 stainless V steel plate with a rubber roller of 2 to 9 for 20 minutes, at 20±2℃ and 65±15R.
180° peeling under H condition.

■ Adhesive strength test: Compliant with J, DOW method. Angle 30°.

Under the condition of 20° C., in the above tests (1) to (2), the product of the present invention was found to have superior coating film performance equivalent to or better than that of a powder coating coated using a conventional method. Regarding ■■, testing is currently underway in home bathrooms and commercial bathrooms (Tabi Tako), and sufficient performance has been observed with no peeling after one year.

Next, a mold resistance test of the product of the present invention was conducted in the following manner.

■ R of mold used (MXT, based on V5272C)
Aspergillus niger, Aspergillus flavus, Chaetomium globosum venicillium, Fusarium citrinum, Moniliform ■ Testing method: Pour a solution containing the spores of the above five test bacteria into a sprayer. Place the sample in the container, and engraft it so that the surface of the sample is slightly wet.

0 Test conditions: 30 degrees Celsius, 2 degrees Celsius, humidity 95 degrees R) Maintained for 1.28 days. After 29 days, a sample was taken out and observed, and no mold had grown at all.

Next, a fungicidal test of the adhesive of the product of the present invention was conducted in the following manner.

O Mold bacteria used... Same as ■.

[Phase] The object on which this mold was planted... Cerakola board 0 The method and conditions for planting the mold on the Cerakola board...
...[Co., Ltd.] After 29 days as in ■, mold had grown all over the surface of the Ceracola board to the extent that it could be easily confirmed visually. The product of the present invention was strongly pressed onto this surface and adhered to it. In the afternoon, the product of the present invention was removed from the Ceracola board and mold was observed, and the mold was completely killed.

Since the product of the present invention has a white surface, the color of the dead mold was not observed at all from above the product of the present invention, even though the hiding power of the base was originally poor. This is because the adhesive was colored black.

The above tests have shown that the product of the present invention not only has the excellent coating performance of powder coatings, but also has antifungal properties against mold that is about to grow, sterilization against mold that has already grown, and the color of dead mold. It was recognized that it has complete concealment power.

[Brief explanation of drawings]

FIG. 1 is a cross-sectional view of the product of the present invention manufactured by the first manufacturing method. FIG. 2 is a sectional view of the product of the present invention manufactured by the second manufacturing method. FIG. 3 is a sectional view of the product of the present invention manufactured by the third manufacturing method. 1: Thin and flexible fibrous base material 2: Liquid paint layer mixed with antifungal agent 3: Powder coating layer 4: Adhesive or agent mixed with antifungal agent Activity 15: Mixed with antifungal agent Second liquid paint layer 6: Separator (23) Figure 1 Figure 2 Figure 3

Claims (4)

[Claims] (1) One side of the thin and flexible fibrous base material is coated and impregnated with an adhesive or pressure-sensitive adhesive mixed with an anti-mold agent, and if necessary, this side is covered with a separator to retain the pus. An anti-mold adhesive coating film that uses a powder paint coated with a liquid paint mixed with an anti-mold agent on the remaining one side, and further has a layer of powder paint heated and melted and hardened on the other side. (2) Apply and impregnate one side of the thin, flexible fibrous base material with an adhesive or pressure-sensitive adhesive mixed with an antifungal agent, and if necessary, cover and protect this side with a separator, and then remove the remaining side of the fibrous base material. A liquid paint mixed with an antifungal agent that is flexible after curing is applied and impregnated, and a powder paint that is flexible after curing is uniformly spread and adhered to the surface of the liquid paint during the uncured period or after curing. A method for producing an anti-mold adhesive film using a powder coating that is heated and melted to prevent hardening. (3) Apply and impregnate one side of the flexible fibrous base material with an adhesive or pressure-sensitive adhesive mixed with an antifungal agent, and if necessary, cover and protect this side with a separator, leaving the remaining fibrous base material. A powder coating was used in which a mixture of a powder coating that was flexible after curing was mixed into a liquid coating containing an antifungal agent on one side and a powder coating that was flexible after curing, and then heated and melted to harden. Manufacturing method for anti-mold adhesive coating. (4) Coat and impregnate one side of the thin and flexible fibrous base material with an adhesive or pressure-sensitive adhesive mixed with an anti-mold agent, cover and protect this side with a separator if necessary, and apply it to the remaining side of the fibrous base material. A first liquid paint mixed with an antifungal agent and having a softness after curing is applied and impregnated, and during the uncured period or after curing, the surface of the liquid paint is mixed with an antifungal agent and has a softness after hardening. A method for producing a paste-on coating for mold prevention using a powder coating, in which a mixture of a second liquid coating and a powder coating that is flexible after curing is applied, and the mixture is heated, melted, and hardened.