JPH06182707A - Composite material slowly releasing aroma - Google Patents

Abstract

PURPOSE:To obtain the composite material capable of sustaining the diffusion of aroma over a long period of time by providing a decorative material on the surface of a base material and forming a film containing aromatic and scaly extender pigment on the surface of the decorative material. CONSTITUTION:A decorative material 2 is integrally laminated on the surface of a base material 1 and a film 3 is formed on the surface of the decorative material 2 to obtain this composite material 4. As the base material 1, for example, wood, a stone material or a plastic plate can be used and, as the decorative material 2, for example, a hinoki straight grain material or a spruce material can be used. The film 3 is formed by coating the surface of the base material with paint containing aromatic and scaly extender prigment such as mica, kaolin or flaky glass. By adding the scaly extender pigment, the release period of the aroma of the aromatic in the film 3 can be extended.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fragrance sustained-release composite material used as a building material such as interior wall materials and ceiling materials.

[0002]

2. Description of the Related Art Conventionally, in general, a composite material having a base material surface provided with a decorative material has been often used for construction of interior walls and ceilings of houses and the like. These composite materials are generally subjected to various processing and decoration on the wall surface for the purpose of modifying the appearance, but in addition to that, for the purpose of satisfying olfactory comfort, for example, in order to emit an aroma. Some have been processed or treated.

As a composite material that emits such a fragrance,
Conventionally, for example, there is one in which a cosmetic material is provided on the surface of a base material, and a coating film made of a paint containing a fragrance is formed on the surface of the cosmetic material.

In this composite material, the fragrance contained in the coating film moves in the coating film to reach the surface of the coating film, the fragrance is diffused from the surface, and the aroma is diffused.

[0005]

However, such a composite material has a shortcoming that the time required for the perfume to reach the surface of the coating film is short, and thus the duration of the fragrance is short.

The present invention has been made in view of such circumstances, and an object thereof is to provide a fragrance sustained-release composite material capable of sustaining fragrance emission for a long period of time.

[0007]

In order to achieve such an object, the present invention provides a coating material containing a cosmetic material on the surface of a base material, and the surface of the cosmetic material containing a fragrance and a scale-like extender pigment. It is characterized in that a coating film consisting of

[0008]

In the fragrance sustained-release composite material of the present invention, since the fragrance and the scaly extender pigment are contained in the coating film, the course of the fragrance is hindered by the scaly extender pigment. The route for the fragrance to reach the coating surface becomes longer. Therefore, the retention time of the fragrance in the coating film becomes long, and the duration of the fragrance becomes long.

[0009]

The present invention will be described in detail below. FIG. 1 shows one embodiment of the fragrance sustained-release composite material of the present invention.

In the figure, reference numeral 1 is a base material, a decorative material 2 is laminated and integrated on the surface of the base material 1, and a coating film 3 is formed on the surface of the decorative material 2 to form the fragrance sustained-release composite. The material 4 is configured.

As the base material 1, it is preferable to use a plate material having sufficient strength, and specifically, for example, wood, stone material, plastic molded plate, metal plate, cement-based inorganic plate, etc. can be used.

For the decorative material 2, for example, a cedar grain material or a spruce material can be used.

As shown in FIG. 2, the coating film 3 is formed by applying a coating material 7 containing a fragrance 5 and a scale-like extender pigment 6 on the surface of the decorative material 2. As a method for applying the paint, an appropriate method such as a flow coater method, a spray method, a spin coating method, or a brush coating method is adopted. The thickness of the coating film 3 is preferably 30 to 200 μm.
When the thickness of the coating film 3 is less than 30 μm, the amount of the fragrance 5 contained in the coating film 3 is inevitably small and the duration of the scent is short, and when it exceeds 200 μm, it can be applied by one coating operation. This is because the thickness is limited (about 20 μm), the number of steps is increased and the cost is increased, or the strength of the coating film 3 is decreased.

As the fragrance 5, a refined tree or fruit, or a synthetic fragrance can be used, and preferably processed by microencapsulation is used. In this case, the particle size of the microcapsules is 0.1-
The thickness is preferably about 100 μm. Further, the content of the fragrance 5 is 10 to 40% by weight, preferably 1
It is set to 5 to 30% by weight. Content of fragrance 5 is 10% by weight
If it is less than 40%, the effect of prolonging the duration of the scent cannot be sufficiently obtained, and if it exceeds 40% by weight, the strength of the coating film 3 is reduced and the adhesion to the decorative material 2 or the base material 1 is reduced. This is because such inconveniences occur.

The extender pigment 6 refers to an inorganic pigment here, and specifically, for example, mica, kaolin, aluminum flakes, glass flakes and the like can be used. The extender pigment 6 is in the form of flakes, and the diameter thereof is preferably 0.1 to 300 μm. Further, when the scale-like extender pigment 6 is dispersed in the coating film 3,
It is preferable that they are dispersed while lying parallel to the surface of the coating film 3. This is because the fragrance 5 has a great effect of obstructing the course of movement toward the surface of the coating film 3. Further, the reason why the diameter of the extender pigment 6 is limited to the above range is that the diameter is 0.1 μm.
If it is less than 300 μm, the effect of hindering the course of the fragrance 5 cannot be sufficiently obtained. The content of the extender pigment 6 is preferably about 1/2 (weight ratio) of the content of the fragrance 5. When the content of the extender pigment 6 is less than 1/2 of the fragrance 5, the effect of extending the duration of the scent cannot be sufficiently obtained, and 1 /
This is because if it exceeds 2, the strength of the coating film 3 is lowered.

As the paint 7, a paint in which the fragrance 5 and the extender pigment 6 can be dispersed is used. For example, acrylic paint, urethane paint, ester paint or the like is used. Further, if necessary, additives such as an antioxidant, an antistatic material, and a color pigment may be added appropriately.

Next, referring to FIG. 2, the function and effect of the fragrance sustained-release composite material 4 will be described. In the fragrance sustained-release composite material 4, the fragrance 5 contained in the coating film 3
Move toward the surface in the coating film 3 and are diffused from the surface to emit a scent. Here, in the coating film 3,
As described above, the flaky pigment 5 and the scale-like extender pigment 6
Are dispersed, the course of the fragrance 5 (indicated by the arrow in FIG. 2) is blocked by the extender pigment 6 and bent.
Therefore, the path for the fragrance 5 to reach the surface of the coating film 3 is lengthened, and the holding period of the fragrance 5 in the coating film 3 is extended. That is, it is possible to maintain the aroma emission for a long time.

Hereinafter, the effects of the present invention will be clarified by showing concrete examples. A coating material was prepared according to the blending amount shown in Table 1, and the coating film of Example (4 examples) and Comparative example (1 example) was formed using the coating material. The performance of the coating films of Examples and Comparative Examples and the sustained release period of the aroma from these coating films were measured, and the results are shown in Table 1. Emulsion containing tree extractive components (made by Kobayashi Institute of Technology) for fragrance, mica (Daimo Micro; manufactured by Topy Industries) for body pigment, and urethane-based paint (made by ADEKA BO-Titer HUX-232; manufactured by Asahi Denka) for paint. , Used respectively. In addition, the content (% by weight) of the fragrance and the extender pigment in Table 1 indicates the content with respect to the coating material.

[0019]

[Table 1]

From the results shown in Table 1, in the coating film of the comparative example using the paint without the extender pigment, the sustained release time was about half a year, whereas in the example using the paint containing the extender pigment ( 4 cases)
It was revealed that all of the coating films of No. 1 had a prolonged sustained release period. In addition, the coating film of Example 1 in which the content of both the fragrance and the extender pigment was within the above range had a sufficiently long sustained release period and excellent coating performance, but the content of the fragrance was within the above range. In the case of exceeding Example 2, the adhesion of the coating film was poor,
In Example 3 in which the content of the extender pigment exceeded the above range, the transparency of the coating film was poor. Further, in Example 4 in which the content of the fragrance was less than the above range, the coating film performance was not affected, but the sustained release period was about 1 year, which was shorter than in Examples 1 to 3.

[0021]

As described above, in the fragrance sustained-release composite material of the present invention, since the fragrance and the scale-like extender pigment are dispersed in the coating film, the course of the fragrance depends on the extender pigment. This hinders the longer path for perfume to reach the coating surface. Therefore, the holding period of the fragrance in the coating film is extended, the sustained release property of the fragrance is improved, and the fragrance can be continuously emitted for a long period of time.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing one embodiment of a fragrance sustained-release composite material of the present invention.

FIG. 2 is a cross-sectional view schematically showing the mechanism of sustained aroma release of the same aroma sustained release composite material.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Base material, 2 ... Decorative material, 3 ... Coating film, 4 ... Fragrance sustained-release composite material, 5 ... Fragrance, 6 ... Volume pigment, 7 ... Paint

Front page continuation (72) Inventor Mitsuru Takahashi 10-1 Nakazawa-machi, Hamamatsu-shi, Shizuoka Yamaha Stock Company

Claims (1)

[Claims] 1. A fragrance characterized in that a cosmetic material is provided on the surface of a base material, and a coating film made of a paint containing a fragrance and a scale-like extender pigment is formed on the surface of the cosmetic material. Sustained release composite material.