JPH0337327Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] The present invention is an improvement of the vinyl chloride corner material used to form the projecting and entering corners of buildings, specifically, the improvement of the corner material made of vinyl chloride used to form the projecting and entering corners of buildings. The present invention relates to a practical corner material that exhibits excellent adhesion stability to water-soluble or emulsion-type paints and adhesives, and is suitable for applying decorative materials such as paint and wall covering materials.

[Prior art and problems to be solved]

A corner material 1 is provided with a decorative surface 2 to which a decorative material D such as paint or wall covering material is to be applied, and is arranged at a meeting point of surfaces in a building to adjust the shape of an external corner or an internal corner. It is well known.

By the way, generally speaking, there are
Decorative materials D such as painting and wall covering materials (e.g., wall cloth, wallpaper, etc.) are often applied.
In the case of the conventional corner material as described above, the outer surface of the surface to be decorated 2 located at the protruding corner or the inward corner C is
Due to poor adhesion stability with water-soluble or emulsion-type paints and adhesives, decorative materials such as paint and wall coverings applied to the area tend to peel off, resulting in poor appearance over time. It had the disadvantage of becoming. The cause is the lubricant and other additives added to the vinyl chloride corner material.
This is because the "wettability" of the surface to be made up is reduced.

For these reasons, in the past, when corner materials were used, it was necessary to roughen the surface to be decorated by sanding each time at the construction site, and there was a strong demand for improvements in this regard.

The present invention eliminates the above-mentioned drawbacks of conventional corner materials made of vinyl chloride, and goes one step further to create practical corners for forming protruding and inward corners that can improve the impact resistance of surfaces to be decorated. The aim is to provide materials.

[Means adopted to solve the problem]

The means adopted by the present inventor in order to solve the above-mentioned problems are as follows: Based on the technical premise of the conventionally well-known corner material made of vinyl chloride, which facilitates the formation of protruding or inward corners of buildings, A stable adhesion layer composed of unplasticized soft or semi-rigid vinyl chloride with good "wettability" is provided on the outer surface of the decorative surface of the corner material. This is based on the concept of stably attaching cosmetic materials.

Therefore, as the vinyl chloride that composes the main body of the corner material to which the present invention is applied, vinyl chloride resin, which is commonly used in this type of product, is usually used.

Next, ethylene-
A vinyl acetate copolymer, polyurethane, or an acrylic acid ester added thereto is adopted. Note that unplasticized soft or unplasticized semi-hard vinyl chloride refers to soft vinyl chloride or semi-hard vinyl chloride that does not contain a liquid plasticizer.
The reason for limiting the use to non-plastic products that do not contain DOP, DBP, DIBP, etc. is that such plasticizers have a strong tendency to blooming and bleeding, and decorative materials that are attached to or painted on the surface concerned are limited to non-plastic products. This is because it has an unfavorable effect on the adhesion of the material.

〔Example〕

Hereinafter, the present invention will be explained based on the illustrated embodiments.

The corner material 1 shown in Fig. 1 is formed as a recessed corner ruler in the shape of an approximately "inverted" character, and is a set-up type product that is placed on one side at the corner of the wall base as shown in Fig. 4. It is. The corner material 1 shown in FIG. 2 is also formed as an embedded corner ruler, has an inverted "Y" cross-sectional shape, and is a product that is placed at a corner of a wall base as shown in FIG.

Furthermore, the corner material 1 shown in Fig. 6 is formed as a facing piece to be placed around the corner where the ceiling surface and the wall surface or the wall surfaces touch each other, and is arranged as shown in Fig. 7. It is a product that

The corner material 1 (embedded corner ruler) shown in FIGS. 1 and 2 has a main body made of hard vinyl chloride. In the same figure, the reference numeral 11 indicates an extension plate portion that extends the makeup target surface portion 2 toward the corner C, and is constructed integrally with the makeup target surface portion 2. Therefore, the surface to be made up 2 is integrally coated with an adhesion stabilizing layer 21 made of unplasticized soft vinyl chloride. Composed of soft vinyl chloride.

The example product shown in FIGS. 1 and 2 having the above-mentioned configuration is arranged at the corner of wall body B (see FIGS. 4 and 5).
(See figure) If the projecting corner C and the finished wall W are constructed by embedding it in finishing mortar, even if an emulsion paint or the like is applied thereon as the decorative material D, the outer surface of the surface 2 to be decorated will not be affected. Since the adhesion stabilizing layer 21 is provided, the paint will not peel off at the protruding corners C.

Next, corner material 1 (ceiling surface wood) shown in Fig. 6
Also, its main body is made of hard vinyl chloride. This face wood type corner material 1 is fixed by nailing or other methods to the corner part between the ceiling and wall surface, such as the edge of the ceiling, and the surface 2 to be decorated forms a concave curved surface in a cylindrical shape. ing. The surface layer of this cylindrical makeup target surface 2 is composed of unplasticized soft vinyl chloride containing acrylic acid ester, and forms an adhesion stabilizing layer 21.

Therefore, the example product of the face wood type shown in Fig. 6 was arranged around the ceiling, and the decorative material D was applied from above.
Even if you attach the wall cloth with an emulsion type adhesive, it will remain stable and will never peel off over time.

[Operations and effects of the present invention]

As clarified above in the explanation of the embodiments, the corner material of the present invention has "wettability" on the outer surface of the face to be decorated located at the protruding corner or the inner corner.
Since a stable adhesion layer made of unplasticized soft or semi-hard vinyl chloride with good properties is provided, water-soluble or emulsion type paints can be applied to the decorative material D.
Even if you paint the wall cloth as decorative material D with a water-soluble adhesive or emulsion type adhesive, the decorative material in the area will not peel off like when using conventional products. This means that the beautiful appearance can be maintained for a long period of time.

In addition, the corner material produced by applying this invention is
The surface to be decorated is covered with a soft or semi-hard vinyl chloride material with excellent cushioning properties, so even if the area receives an impact, the surface to be decorated will not chip or crack like with conventional products. This will greatly prevent inconveniences.

As described above, according to the present invention, it is possible to solve the problem of decorative material peeling, which has traditionally been considered a drawback with this type of corner material, and the impact resistance of the surface to be decorated, which is prone to chipping, is improved, making it easier to transport or transport. Great effects can be obtained, such as reducing the number of accidents caused by damage during construction.

[Brief explanation of drawings]

Figure 1 is a perspective view of the first example product (embedded ruler with straddle) manufactured by applying the present invention, and Figure 2 is a perspective view of the second example product (embedded ruler with straddle) manufactured by applying the present invention. ruler)
FIG. 3 is an enlarged cross-sectional view of the extended plate portion of the products of the first and second embodiments, and FIG. 4 is a cross-section of the projecting corner portion formed using the product of the first embodiment. An explanatory drawing, FIG. 5 is a cross-sectional explanatory diagram of the case where a protruding corner is constructed using the product of the second embodiment, and FIG. 6 is a cross-section of the product of the third embodiment (ceiling wood) manufactured according to the present invention. Figure, 7th
The figure is an explanatory cross-sectional view when the product of the third embodiment is arranged around the ceiling to form an inside corner. 1... Corner material, 2... Surface to be decorated, 21... Adhesion stabilizing layer. C...Extended corner or internal corner.

Claims (1)

[Scope of claim for utility model registration] In vinyl chloride corner materials forming the protruding or inward corners C of a building; the outer surface of the decorative surface 2 to which decorative material D such as painting or wall covering material is to be applied; A corner material characterized in that an adhesion stabilizing layer 21 made of unplasticized soft or semi-hard vinyl chloride is provided. The corner material according to claim 1, wherein the unplasticized soft or semi-hard vinyl chloride constituting the adhesion stabilizing layer 21 contains an ethylene-vinyl acetate copolymer, a polyurethane, or an acrylic ester.