JP2008281968A - How to decorate resin frames - Google Patents

Abstract

[PROBLEMS] To eliminate peeling of decorative pieces on the surface of a resin temple.
A polyurethane resin-based primer (11) is applied to the surface of a resin frame (10), dried, and then a metal long plate or a long resin plate printed thereon ( 20) and then a resinous frame decorating method characterized in that it is coated with a clear two-component epoxy resin adhesive (15) or coated so that the decorative plate is embedded. [Selection figure] Figure 2

Description

  The present invention relates to a flexible resin frame, and more particularly to a method for decorating a temple.

  Conventionally, in the case of eyeglasses, as a decoration method for forming a decorative piece on a flexible resin frame, particularly a temple, decoration using a thermosetting epoxy resin called so-called organic cloisonne has been performed for a long time. I came. For example, as shown in Japanese Utility Model Publication No. 61-29313, as shown in FIG. 8, a concave portion is provided on a part of the spectacle frame, a resin layer is formed and a decorative plate is placed thereon, and a transparent epoxy resin is poured on the upper part to make a cloisonne decoration A spectacle frame in which 30 is formed has been proposed.

Shokai 61-29313

  However, in the above-mentioned means, the decoration can be provided only in the spectacle frame, a part of the temple, or as a spot. It is peeled off from the bonding surface or the boundary surface between the decorative plate and the adhesive by repeatedly bending the decorative plate extended to some extent in the length direction of the temple when wearing the temple with some flexibility. Because of the problem of coming, it was possible to attach a decorative plate to only a part of the temple.

  Therefore, in order to solve the above problems, a polyurethane resin primer is applied to the surface of the resin frame, and after drying, a decorative plate is placed on the primer, and a clear two-component epoxy resin adhesive is further applied thereon. A method of decorating a resin frame, which is characterized by being coated or coated so as to embed the decorative plate, was adopted. The decorative plate is a metal long plate or a printed long resin plate.

  By adopting the above method, even if the temple is opened and closed or bent outward, the decorative plate (plate) that is long to some extent will not peel off, and the decoration will be clearly visible without causing wrinkles or cloudiness in the adhesive part. done. In repeated experiments, wrinkles and white turbidity occurred in acetate, cellulose, etc., which is a resin of the resin temple body.

  Apply a polyurethane resin primer on the surface of the resin frame, and after drying, place a long metal or resin decorative plate on it, and then apply a clear two-part epoxy resin adhesive on it. A method of decorating a resin frame, characterized in that the coating is applied so as to embed the decoration plate.

  FIG. 1 is a front view of a resin temple 10 with a decoration according to an embodiment of the present invention, and FIG. In this case, the polyurethane adhesive 11 is applied as a primer to a predetermined place on the surface of the temple after the core hole 12 is processed or the core bar 13 is inserted, and the long decorative plate 20 is applied thereon. Install. Here, the long length is about 2 to 10 cm. Further, a two-component epoxy adhesive 15 at room temperature is applied thickly so as to cover or embed the decorative plate 20 and dried.

  Also, as shown in FIGS. 3 and 4, a recess 16 is provided in the resin temple 10a, a polyurethane primer is applied therein, a decorative plate 20a is installed therein, and the decorative plate 20a is further mounted thereon. Apply thick to cover or embed and dry.

  5 is an enlarged cross-sectional view of the main part in the case of FIGS. 1 and 2. More specifically, the polyurethane primer 11 is applied to the surface of the resin temple 10 and is naturally dried for about 24 hours or mechanically dried. And drying at 50 to 90 ° C. for about 20 to 60 minutes, and the decorative plate 20 is placed thereon. The decorative plate 20 can be a metal material with or without decoration on its surface, for example, a noble metal such as aluminum, gold, silver, or platinum, or a resin decorative plate. Then, a two-component epoxy adhesive 15 at room temperature is applied thickly on the decorative plate so as to cover or embed the decorative plate. Here, the epoxy adhesive is preferably transparent or translucent. And as said two-component epoxy adhesive, for example, as an adhesive, a low viscosity grade flexible type epoxy resin (viscosity 4-9P / 25 ° C., epoxy equivalent 390-470, liquid at normal temperature), and The curing agent is preferably a low-viscosity grade modified aliphatic polyamine or aliphatic amine, and a mixture thereof. And it will be completed if it is made to dry for 3 to 6 hours at about 50-80 degreeC after that.

  FIG. 6 is an enlarged cross-sectional view of a main part in the case of FIGS. 3 and 4, a resin temple 10 a recess 16 is provided, and a polyurethane primer 11 a is applied therein, followed by natural drying for about 24 hours and mechanical drying. It is dried at about 50 to 90 ° C. for 20 to 60 minutes, and the decorative plate 20a is placed thereon. Then, an ordinary temperature two-component epoxy resin adhesive 15a is applied or poured so as to fill the recess 16 and the decorative plate 20a. And it dried at about 50-80 degreeC for about 3 to 6 hours, and obtained this decoration.

  Then, as shown in FIG. 7, the outward bending test was visually performed, but no abnormality was found on the boundary surface between the decorative plate 20 and the bonding portion 15 and between the resin temple 10 and the bonding portion 15.

  FIG. 8 is a conventional diagram of Japanese Utility Model Laid-Open No. 61-29313. A spectacle frame is shown in which a concave portion is formed in a part of the spectacle frame body 40, a resin layer is formed and a decorative plate is placed thereon, and a transparent epoxy resin is poured into the upper portion to form a cloisonne decoration 30.

The front view of the resin temple by the Example of this invention AA sectional view of FIG. The front view of the resin temple by the Example of this invention BB sectional view of FIG. 1 and 2 are enlarged cross-sectional views of essential parts. 3 and 4 main part enlarged sectional view Plan view of the resin temple of the present invention Conventional diagram

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Resin temple 11 Primer layer 12 Core hole 13 Core metal 15 Adhesive layer 16 Recess 20 Decoration plate 30 Cloisonne decoration part 40 Eyeglass frame

Claims (2)

A method for decorating a plastic spectacle frame, which is a two-part epoxy resin that is coated with a polyurethane resin primer on the surface of the resin frame, dried, and then placed on a decorative plate. A method for decorating a resin frame, characterized in that an adhesive is coated or applied so as to embed the decorative plate. The method for decorating a resin frame according to claim 1, wherein the decorative plate is a long metal plate or a long resin plate that is printed and decorated.

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