JP2000202013A - Deodorizing coating material and its coating method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a deodorizing coating material having excellent adhesion and water-resistant performance, and a method of coating thereof. SOLUTION: A metal phthalocyanine compound is added to a main agent for forming a coating film as a deodorizing agent to prepare a deodorizing coating material. Especially, the adding amount of the metal phthalocyanine compound is set to be 1.0 to 20 wt.% of solid content ratio. Furthermore, a water-based urethane resin is used as the main agent. The deodorizing coating material is applied to an object 1 to be coated.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a deodorant paint and a method for applying the same.

[0002]

2. Description of the Related Art In recent years, with the advancement of quality of life, improvements to the living environment have been made from various aspects.

[0003] With the increase in the use of various chemical products, the pet boom, anti-smoke thinking, and the increase in highly airtight houses, various deodorizing means for removing malodors and off-flavors have been studied.

[0004] Conventional treatment methods include techniques such as adsorption with activated carbon, decomposition with a catalyst, oxidation and neutralization with ozone and chemicals, etc. In the above-mentioned conventional method, attention must be paid to life, running cost and handling. Such as
There are various problems.

[0005] In recent years, in order to solve these drawbacks, there have been reports of using metal salts such as metal oxides and copper phthalocyanine as deodorants.

[0006] In the field of functional paints, studies in this area have been actively conducted.
No. 0-113612 discloses an antibacterial heat-resistant coated metal plate to which silver and copper titanium monoxide antibacterial agents are added,
Japanese Patent Application Laid-Open No. 9-291624 proposes a partition device in which a paint mixed with fine particles of tourmaline is applied to the partition device to exhibit a deodorizing function.

[0007]

When the above-mentioned metal salt or the like is used as a deodorant for effectively treating a deodorant component, it is dyed and carried on an object to be coated such as a fiber or a nonwoven fabric. The method is common.

However, in this method, not only the processing steps are complicated, but also the plane shape is limited, so that the equipment is industrially large and it is difficult to handle small lots. Further, there is a problem that the material of the object to be coated is restricted.

In order to solve such a problem, a method of forming a deodorant film by applying a deodorant to a liquid after coating the liquid with a deodorant has been considered.

However, in the prior art, when a coating solution using the above-mentioned deodorant is applied to a substrate to form a deodorant film, the properties such as adhesion strength and water resistance of the film are not sufficient. Was not considered.

The present invention has been made in order to solve the above problems, and an object of the present invention is to provide a deodorant paint excellent in characteristics such as adhesion strength and water resistance, and a method of applying the same.

[0012]

The present invention is as follows to solve the above-mentioned problems.

[0013] The deodorant paint according to the first aspect of the present invention,
It is characterized in that a metal phthalocyanine compound is added as a deodorant to a main agent for forming a film.

According to a second aspect of the present invention, in the deodorant coating composition according to the first aspect, the amount of the metal phthalocyanine compound added is such that the solid content ratio of the coating composition is set to 1.0 to 20% by weight. And

According to a third aspect of the present invention, in the deodorizing paint according to the first or second aspect, the main agent is water-based.

According to a fourth aspect of the present invention, in the deodorant paint according to the third aspect, the water-based base material is a urethane resin.

According to a fifth aspect of the present invention, in the method for coating a deodorant paint, the surface of the object to be coated is cleaned, and then the object to be coated is ground-treated. It is characterized in that any one of the deodorizing paints is applied, and then the object to be coated after the application is forcibly dried.

[0018]

Embodiments of the present invention will be described below.

In this embodiment, a deodorant is added to the base material for forming a film constituting the coating material. In this embodiment, a metal phthalocyanine compound is used as the deodorant. Specific examples of the metal phthalocyanine compound include Fe (ll) phthalocyanine octacarboxylic acid, Fe (ll) phthalocyanine tetracarboxylic acid, and cobalt (ll) phthalocyanine. Such a metal phthalocyanine compound acts as a bioenzyme and can perform adsorption and decomposition. The metal phthalocyanine compound is formed into a coating material after appropriately adjusting the amount of the metal phthalocyanine compound, and the deodorizing film is formed by combining an optimum coating method according to the shape of the object to be coated and required characteristics of the coating. Can be obtained by a simple process.

The amount of the metal phthalocyanine compound contained in the deodorant paint is 1.0 to 20 w in terms of the solid content of the paint.
It is preferably set to t%. The reason is that when the content is less than 1.0 wt%, the deodorizing function is not exhibited. If the content is more than 20% by weight, the effect will be saturated and the cost will increase, and the performance required as a film, such as adhesion to various objects to be coated and water resistance, will also be inferior.

The main component of the deodorant paint is a water-based paint.
(Water soluble) is preferably used. Thereby, it is possible to provide a deodorant paint that uses almost no organic solvent and is friendly to workers and natural, such as safety and pollution control.
However, it is also possible to use a solvent-based (water-insoluble) base material. If it is a solvent type, it is easy to obtain high quality in order to correspond to various metals and resin materials,
It can be adapted to various working conditions and can be designed with various functions.

As a main component of the above-mentioned water-based or solvent-based paint, specifically, a fibrous derivative resin such as nitrocellulose, benzylcellulose and ethylcellulose can be used. In that case, since the material is inexpensive and inert to each additive, it is possible to make a coating without impairing the performance of the additive. Alternatively, a synthetic resin such as alkyd, pinyl acryl, epoxy, urethane, polyester, or etherified amino resin can be used as the main agent. When using such a synthetic resin, it is easy to obtain high quality, and as a type of paint with various functions, it is possible to adapt to various working conditions, and paint design with various functions Is possible.

As the above-mentioned aqueous synthetic resin, it is particularly desirable to use a urethane resin. If this urethane resin is used, it is not necessary to use an organic solvent, so that it is naturally friendly to workers, such as safety and pollution control, and can easily be used for all types and resin materials, and high quality can be easily obtained. Moreover,
Adaptable to various working conditions. In addition, since the aqueous solution of the urethane resin is alkaline, it is well dissolved when the above-mentioned metal phthalocyanine compound is added as a deodorant, so that it can be directly added and a coating can be easily formed.

The thickness of the deodorant film is preferably set to an appropriate value according to the type and shape of the object to be coated.

For example, for fibers and non-woven fabrics,
Since the surface area of the deodorant film can be increased, if it is formed to a thickness of 1 μm or more, it is possible to obtain a deodorant property while securing a certain degree of flexibility.

Further, in this embodiment, when a metal phthalocyanine compound is used as a deodorant for a deodorant paint, the metal phthalocyanine compound has a decorative function because it develops a beautiful color. When a color tone is not required, a functional film that protects a resin material having a deodorizing function can be formed by coating an object to be coated with a thickness of usually 5 to 15 μm.

When a metal material is used as the object to be coated, the film thickness can be set according to the place where the metal material is used, the required performance, and the corrosion resistance of the metal material. For example, when using iron plates, hot-dip galvanized steel sheets, etc. as metal materials for home appliances used indoors, in order to have not only deodorant properties but also corrosion resistance and chemical resistance, 15 to 15
It is formed with a thickness of 30 μm. In the case where the metal material itself such as stainless steel and aluminum has corrosion resistance, the thickness may be about 5 to 10 μm unless the color tone for the purpose of decoration is required.

Next, a method for forming a deodorant film by applying a deodorant paint containing a metal phthalocyanine compound as a deodorant to an object to be coated and drying it will be described.

First, various objects to be coated are washed with water, or the surface is cleaned by removing oils and fats, dust and the like using a solvent, an alkali or an acid.

Next, a base treatment for ensuring the adhesion of the deodorant film is performed so as to be able to adapt to various coating film properties required for the object to be coated.

The undercoating treatment is, for example, a phosphate treatment,
Anodizing treatment such as alumite, and mechanical treatment such as sandblasting are performed. For materials with poor coating adhesion, such as copper and magnesium alloys, polyolefins, nylons, polyesters, and polyacetals, primer treatment with epoxy, epoxy phenol, chlorinated PP, or metal chelate compounds or phosphoric acid-based compounds It is preferred to carry out the treatment with the compound.

Next, the deodorant paint according to the present invention is applied. This coating method is performed by means such as air spray, air spray electrostatic coating, dip coating, curtain coating, roll coating, etc., depending on the properties of the deodorant paint and the shape of the object to be coated. When a film thickness is required for the coating film, overcoating may be performed.

Finally, drying is performed. In the case of deodorant paints using synthetic resin as the main component, there are types that cure at room temperature, but in consideration of industrial mass productivity, setting was performed after application to evaporate low boiling point solvents and water. rear,
Perform forced drying in an atmosphere furnace or hot blast furnace.

[0034]

EXAMPLES Hereinafter, the present invention will be described specifically with reference to examples, but the present invention is not limited to these examples.

(Embodiment 1) In this embodiment 1, as shown in FIG. 1, a filter 1 used in an air conditioner such as an air conditioner is used.
Is the object to be coated. This filter 1 is made of nylon,
It comprises a net 2 made of a resin material such as polyester or polypropylene or a metal material such as stainless steel or aluminum, and an outer frame 3 made of the same material as the net 2.

As a deodorant paint used for coating the filter 1, an aqueous urethane resin liquid (resin solid content: 35%) is used as a main component, and a mixed solution of water and N-methyl-2-pyrrolidone is used as a solvent. (pH = 7.8). further,
F which is one of the metal phthalocyanine compounds as a deodorant
e (ll) phthalocyanine octacarboxylic acid was blended at 2.9 wt% with respect to the above main ingredient.

Then, these are sufficiently stirred and mixed,
A dark green deodorant paint having a viscosity of 100 mpa.s (Brookfield / 25 ° C.) was obtained.

Next, the filter 1, which is the object to be coated, was previously degreased using an organic solvent or a cleaning agent to remove oils and fats and dust.

Subsequently, the filter 1 was coated using an air blower gun. The coating of the net 2 was performed by adjusting the spray gun so that the amount of the paint was reduced, the pressure of the atomizing air was increased, and the paint was atomized so as to prevent clogging and the paint from becoming a thick film. In this case, re-coating was performed as much as possible to prevent clogging and thick coating. The target film thickness was 3 to 5 μm for the net 2 and 5 to 10 μm for the outer frame 3.

After completion of the coating, setting was performed at room temperature for 5 minutes, and then forced drying was performed with hot air. When the material of the net 2 and the outer frame 3 constituting the filter 1 is a synthetic resin, it is necessary to dry at a temperature at which thermal deformation does not occur. Further, since the deodorizing performance of Fe (ll) fucocyanine octacarboxylic acid used as a deodorant decreases at high temperatures, the drying condition was set at 80 ° C. for 20 minutes.

The filter 1 thus coated with the deodorant paint is used by being incorporated into an air conditioner indoor unit 4 as shown in FIG. In addition, in FIG. 2, 5 is a heat exchanger, 6
Is a fan.

(Embodiment 2) As Embodiment 2, as shown in FIG. 3, an outer shell member 11 of a pet house 10 used indoors is an object to be coated. As the outer shell member 11 of the pet hut 10, a metal material or a resin material is used. In the case of a resin material, the same degreasing treatment as in the first embodiment is performed, and a coating with a target film thickness of 10 to 15 μm is performed on the inner wall surface of the outer shell member 11 of the pet hut 10. In this case, there is no need to adjust the spray gun performed in Example 1,
It can be performed under normal conditions. On the other hand, when a metal material is used for the outer shell member 11, a degreasing treatment, a zinc phosphate treatment, an alumite treatment, a primer treatment and the like are performed as in Example 1, and the coating is performed under normal conditions to apply hot air. Dry with force.

Table 1 shows the results of examining the coating properties of the paints used in Examples 1 and 2 described above.

[0044]

[Table 1]

In Table 1, Example 1 shows the results of examining the characteristics of the net 1 of the filter 1, and Example 2 shows the results of examining the characteristics of the outer shell member 11 of the pet hut 10. .

As can be seen from Table 1, the coating materials of Examples 1 and 2 have good physical properties and chemical resistance and water resistance, and the coating does not peel off even when used for a long period of time. Further, the deodorizing life can be maintained even after repeated washing with water, and a comfortable living environment can be provided.

In the above Examples 1 and 2, depending on the required coating film performance and workability, a curing agent and a crosslinking accelerator were added to the deodorizing paint used in Examples 1 and 2. It is also possible to use.

[0048]

According to the present invention, the following effects can be obtained.

(1) Since a metal phthalocyanine compound is used as a deodorant, odors such as chemically adsorbed nitrogen-based gas can be eliminated by washing with water, and regeneration is possible even if the deodorant performance is deteriorated. is there. Moreover, since the deodorizing coating is designed in consideration of the water resistance, the coating does not peel off, and the deodorizing life can be maintained for a long time.

(2) As described above, it is possible to form a deodorant film simply by performing painting in the same manner as a normal painting feeling, and to provide a comfortable living environment.

(3) In particular, if an aqueous deodorant paint is used as a main component, an organic solvent is hardly used, and a deodorant paint which is friendly to workers and naturally, such as safety and pollution control, is provided. can do.

(4) If an aqueous urethane resin is used as the main component of the deodorant paint, the aqueous solution is alkaline, so that it is easily dissolved when the above-mentioned metal phthalocyanine compound is added as a deodorant. , Can be added directly, and can be easily formed into a paint.

(5) In particular, since a deodorizing filter can be manufactured only by applying the deodorizing paint of the present invention to a sheet-like object to be coated such as a nonwoven fabric, air conditioning such as an air conditioner, an air purifier, a dehumidifier, etc. It can be used suitably for machines.

(6) Further, since the deodorizing paint of the present invention has various coating film properties and design properties, it can be deodorized only by applying it to a structure of a metal sheet metal processing or a resin molded product. The outer shell member can be obtained.

[Brief description of the drawings]

FIG. 1 is an explanatory view of a case where a deodorant paint of the present invention is applied to a filter used in an air conditioner or the like.

FIG. 2 is a sectional view showing a state where the filter of FIG. 1 is attached to an air conditioner.

FIG. 3 is an explanatory diagram of a case where the deodorant paint of the present invention is applied to a shell member that becomes a pet hut.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Filter, 2 ... Net, 4 ... Air conditioner, 10 ... Pet hut, 11 ... Inner wall surface.

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) C09D 175/04 C09D 175/04 F-term (Reference) 4C080 AA06 BB02 CC01 HH05 JJ03 JJ06 KK08 LL03 LL10 MM19 NN24 NN28 4D075 AA04 AA09 AC14 AC22 BB04X BB24Z BB65X BB67X CA38 CA44 DA04 DA06 DB01 DB02 DB04 DB05 DB20 DC02 DC19 DC38 EA06 EA60 EB38 EC08 EC54 4J038 DG001 EA011 JB26 MA08 MA09 MA10

Claims (5)

[Claims] 1. A deodorant paint comprising a metal phthalocyanine compound added as a deodorant to a main agent for forming a film. 2. The deodorizing coating according to claim 1, wherein the amount of the metal phthalocyanine compound added is such that the solid content ratio of the coating is set to 1.0 to 20% by weight. . 3. The deodorizing coating according to claim 1, wherein the main agent is a water-based coating. 4. The deodorant paint according to claim 3, wherein the water-based base material is a urethane resin. 5. After the surface of the object to be coated is cleaned, the object to be coated is subjected to a base treatment, and then the deodorizing paint according to any one of claims 1 to 4 is applied. A method for applying a deodorant paint, which comprises forcibly drying a subsequent object to be coated.