JPH06340501A - Coating agent composition - Google Patents

Abstract

PURPOSE:To obtain a coating agent composition capable of preventing adhesion of dust, dirt, water, etc., to cause molds and exhibiting an antimicrobial effect for a long period of time only by operation of application to the surface of a target to be treated. CONSTITUTION:One or more metals selected from silver, copper, tin and zinc are supported on an emulsion comprising a coating agent containing at least one of paraffin wax and carnauba wax or both wax components, water and diatomaceous earth or talc, as a main material and the amount of the metal added is 0.5-30wt.% to constitute the objective coating agent composition.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention In the present invention, by coating the outside air contact surface of a site (eg, tile joint) in an environment where mold is likely to occur, the surface is protected against bacteria and fungi such as mold. The present invention relates to a coating composition that can have bactericidal / antibacterial performance.

[0002]

2. Description of the Related Art In humid areas such as kitchens and baths, molds are apt to be generated due to adhesion of dust, dust, water and the like, and the formation of molds remarkably impairs the appearance. Further, if mold is generated, it may cause deterioration such as peeling and cracking of the joint material and the sealing material, leading to damage. Therefore, conventionally,
For molds generated in such a part, measures have been taken to wash and remove with a strong alkaline solvent such as sodium hypochlorite. And regarding recontamination after cleaning and removing,
No method other than cleaning has been adopted.

[0003]

At present, there is a strong demand for the development of a technology for protecting tile joints and sealing parts from mold contamination over a long period of time. On the other hand, it would be extremely convenient to have a coating agent that can exert its sterilizing / antibacterial effect only by coating tile joints and the like, and can prevent the generation of mold and the like at these sites for a long period of time.

Therefore, an object of the present invention is to coat the surface to be treated with dust, dust, etc.
An object of the present invention is to provide a coating composition which can prevent adhesion of water and the like and can exert an antibacterial effect for a long period of time.

[0005]

To achieve this object, the coating agent composition according to the present invention is characterized in that the coating agent composition contains at least one wax component of paraffin wax, carnauba wax, or both wax components. An emulsion mainly composed of a coating agent containing water and diatomaceous earth or talc holds one or more metals selected from silver, copper, tin and zinc as metal ions, and The content is 0.5 to 30% by weight, and the functions and effects are as follows.

[0006]

In other words, the coating agent composition of the present application has a wax component (paraffin wax, carnauba wax), water (water) and a base component (diatomaceous earth, talc).
Including these, these are constituted as an emulsion in an emulsified state, and the metal dispersed in an ionic state is mixed with this. Here, by containing the wax component of paraffin wax, carnauba wax and the base component of diatomaceous earth, talc, since this coating composition coats the joint surface in the form of filling the porous joint,
In addition to preventing dirt and dust from adhering, the water-repellent action of the wax component also prevents water from adhering or invading, making it difficult to form an environment where mold is generated, and exerting a bactericidal / antibacterial effect. On the other hand, the contained metal is uniformly dispersed in the material during the emulsification process of the coating agent composition and evenly dispersed in the coating film, so that its bactericidal / antibacterial action is effectively exhibited. In this case, since the coating film formed in the process of coating and coating has water repellency, the metal does not elute in water, and therefore the antifungal effect is continued for a long time.

[0007]

Therefore, the dust that causes mold formation,
Obtain a coating agent composition that can prevent the adhesion of dust, moisture, etc. and can exert the antibacterial effect of metal ions for a long period of time, and obtain a coating agent that can be sterilized and antibacterial simply by coating on a predetermined part. Was given.

[0008]

EXAMPLES Examples of coating agent compositions will be described. As described above, this composition is for preventing the occurrence of mold on joints provided in a relatively humid environment such as kitchen and bath, and is applied on the joints.
Alternatively, the function is exhibited by forming a coating agent layer on the surface of the joint by coating.

In order to obtain a coating agent composition, a mixture having the following composition is obtained, an emulsion is obtained at a predetermined temperature, and an antibacterial agent is stirred and mixed with the emulsion to obtain a product. Composition of coating agent composition excluding antibacterial agent (unit weight%) Wax component Paraffin wax 0-70% (preferably 1-
5%) Carnauba wax 0-75% (preferably 2-
6%) Water 30-80% (preferably 40)
〜70%) Base material diatomaceous earth, talc 0-40% (preferably 5
20%) Other stearic acid 0.1 to 10% (preferably 3 to
6%) Amino alcohol 0.05-4% (preferably 0.
2 to 2%) Dimethylsiloxane 0 to 10% (preferably 2 to 2%)
5%) Solvent content (solvent) 3 to 30% (preferably 8 to
20%) Formation of coating composition The above composition is heated and stirred at 70 to 85 ° C to obtain an emulsion. Composition of antibacterial agent One or more metals selected from silver, copper, tin and zinc (specifically, silver-based inorganic antibacterial agent (for example, manufactured by Toagosei)) wt% 0.5 to 30% (preferably Is 1.
0-20%) Addition and mixing in the emulsion compounding process Here, the dispersion stability of the antibacterial agent in the composition is important in order to sufficiently exert the antibacterial effect. When prepared in step 1, a stable emulsified product cannot be obtained as a coating agent, and effective dispersion of the antibacterial agent cannot be expected. That is, below the lower limit of the compounding range, the antibacterial effect cannot be sufficiently exerted, and when it exceeds the upper limit, the viscosity increases and the stability as a coating agent is deteriorated, and the coating workability is significantly reduced. Is difficult.

The experimental results of the antibacterial effect of the above coating composition will be described below. Experimental conditions 1 Test method Mold resistance test According to JIS Z-2911 2 Joints that were the subject of the test Cement-based joint material pellets The joint material to be tested was white cement 70% by weight, river sand 20% by weight, methylcellulose 10% by weight. Water is added to the joint material to make pellets of 30 mm x 30 mm x 3 mmt, and then dealkalized. 3 Manufacture of test sample An emulsion having the composition shown in Table 1 was constituted, and an antibacterial agent was mixed with this emulsion at a ratio shown in Table 2 to obtain a coating agent composition. Composition of coating agent composition excluding antibacterial agent is shown in Table 1 below.

[0011]

[Table 1]

Composition of coating agent composition Table 2 shows the composition ratio of the antibacterial agent and the other composition.

[0013]

[Table 2]

4 In the above-mentioned pellets, the coating agent composition shown in Table 2 above is applied so as to fill the porous surface, and a coating film is formed to obtain a sample. 5 Bacterial species used Alterteleria, Alpergillus niger, Cladosporium, Cladosporioides, Penicillium, Funiculosum. 6 Test Result of Antifungal Effect Table 3 shows the test result of JIS Z-2911.

[0015]

[Table 3]

7 Furthermore, when the coating composition of Experimental Examples 2 and 3 was applied to an actual bathroom tile wall surface and the antibacterial effect was examined, no mold was found even after one year had passed since the construction. No discoloration of joints has been confirmed.

As a result, it was possible to secure sufficient antibacterial performance by adopting the coating composition of the present invention. Now, the coating agent composition of the present application contains water as the composition. The antibacterial target, for example, the coating film formed on the joint of the tile exhibits water repellency due to the wax component and the silicon component contained therein. On the other hand, it is necessary for water to intervene in order to exhibit the antibacterial effect of the metal antibacterial agent (metal ion).
However, what is meant by water here is that there is a degree of free water at the molecular level, and it is sufficient that the amount of humidity in the air intervenes on the film surface. Can exhibit sufficient water-repellent effect and antibacterial effect without any contradiction.

[Another Example] The antibacterial agent composition may use an organic antibacterial agent such as thiapentazole in combination with the above-mentioned inorganic antibacterial agent as an antibacterial agent.

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁵ Identification code Office reference number FI technical display location C09K 3/00 S

Claims (2)

[Claims] 1. An emulsion mainly composed of a coating agent containing at least one wax component of paraffin wax or carnauba wax, and water and diatomaceous earth or talc, and silver, copper, tin or zinc. A coating agent composition which holds one or more selected metals as metal ions and contains the metal in an amount of 0.5 to 30% by weight. 2. The emulsion comprises 0 to 70% by weight of the paraffin wax and 0 to 0% of the carnauba wax.
The content of water is 30 to 80%, the content of stearic acid is 0.1 to 10%, and the content of amino alcohol is 0.1%.
05-4%, dimethylsiloxane 2-5%, solvent content 3
The coating agent composition according to claim 1, wherein the coating agent composition comprises -30% by weight and is heated and stirred at 70 to 85 ° C.