JPS61177424A - Production of ornamental body for spectracle frame - Google Patents

Abstract

PURPOSE:To prevent a pattern from discoloring and decoloring afterward by incorporating a during agent, pigment and thixotropic agent into an epoxy resin and curing the resin by heating after vacuum defoaming. CONSTITUTION:A paint is prepd. by using the epoxy resin as an essential component and kneading the curing agent and pigment therewith. The paint for forming a decorative sheet 8a is coated at suitable intervals on a frame, then the paint contg. the different pigment and having another color is coated thereon to form a decorative sheet 8b. The paint of a decorative sheet 8c is coated to the remaining space. The paint is vacuum-defoamed to have the smooth and level surface and is then cured by heating to about 50-80 deg.C. The thixotropic agent which acts to prevent sagging and an additive which acts to prevent the sepn. of the colors are slightly added to the paint. For example, a thixotropic agent is used as the thixotropic agent and the additive, etc. are used as the additive. The discoloration and decoloration of the pattern are thus obviated.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Field of Application) The present invention relates to eyeglass frames, and particularly to a decorative body attached to the outer surface of a metal frame.

(Prior Art) Eyeglass frames are not only required to be functional, but also have a strong design orientation and are decorated with a wide variety of decorations. Taking the metal frames that have become the mainstream of eyeglass frames in recent years as an example, materials that are lightweight, have high tensile strength, and have spring characteristics are not only required for their mechanical properties, but also for the design of the frame. Height is also desired.

Furthermore, in addition to the designs created by using such metal frames and devising the shape, there are also designs in which a part or the entire area of the frame is painted to give it a colorful color.
On the other hand, there is also one in which a decorative board is attached, which is formed by providing four parts in a part of the frame, and applying a paint made of epoxy resin as a main component, kneaded with a hardening agent, pigment, metal particles, etc. to the recessed parts, and then curing the paint. It is used. The decorative board exhibits a kind of pattern due to the metal particles mixed in the paint, but at first glance it appears to be a single color of pigment, and the plating and painting are also decorations of a single color. Of course, it is possible to apply not only a single color decoration but also various patterns using transfer, but this transfer method involves applying paint to the eyeglass frame, curing it, and then applying the patterned film to a hardened decorative board. 100' (7~15
The pattern of the film is transferred onto the surface of the decorative board by heating it to 0°C.

However, this type of transfer is processed under high heat, so if the frame is made of heat-sensitive parts such as celluloid, or if it is plated, the transfer will not be possible as the color will change due to high heat. The pattern formed by this method is sensitive to ultraviolet rays, resulting in discoloration and fading of the pattern over time.

(Problems to be Solved by the Present Invention) As described above, when forming patterns on eyeglass frames, there is a transfer method, but as mentioned above, it requires high-temperature heat treatment, and some of the patterns are made of heat-resistant materials. There is a problem with frames made of or plated, and the transferred pattern itself also has the problem of being sensitive to ultraviolet rays.

The present invention is a method for manufacturing a decorative body for eyeglass frames developed to solve these problems, and provides a method that does not require high-temperature heating and does not cause the pattern formed to discolor or fade later. It is something.

(Means for Solving the Problems) Therefore, the decorative body according to the present invention uses a paint containing an epoxy resin as a main component, a curing agent, and a pigment, and after vacuum defoaming the air contained inside, Apply it here and there,
Apply a paint with a different color using different pigments to another location, then repeat the application of the paint of the desired color, and finally level the surface smoothly and compare at about 50°C to 80°C. Cure by heating to a low temperature. However, it is impossible to apply the above-mentioned paint that has been conventionally used on the outer surface of eyeglass frames, which are made of thin wires, as is, and the applied paint will smudge, causing different colors to be applied to the outer surface of eyeglass frames. Paints applied in this manner flow into each other across boundaries, making it impossible to uniformize and form a predetermined pattern.

The present invention is designed to prevent the fluid paint from sagging even when applied to the outer surface of the front frame or part of the temples, and to prevent the fluid paint from flowing into each other across the boundaries and interfering with the formation of patterns. A small amount of thixotropic agent, which acts to prevent sag, and an additive, which acts to prevent color separation, are added. For example, the thixotropic agent may be a thixotropic agent, the additive may be an additive, etc., and the area on the eyeglass frame where the amount of the thixotropic agent is to be applied, that is, a flat plate, Adjustment is made depending on whether the wire is thin or not, and if the wire is prone to sag, a somewhat larger amount of thixotropic agent is added.

EMBODIMENT OF THE INVENTION Hereinafter, one example of the manufacturing method of the eyeglass frame decoration body based on this invention will be described in detail based on drawings.

(Example) FIG. 1 is an example of a decorative body manufactured by the manufacturing method according to the present invention, and is a specific example embodied in the frame of seven glasses. Figure 1 shows a part of the front frame Q), and the frame (2) that holds and fixes the lens 2) is symmetrically connected by connecting plates (3), and there is a nose pad stop on the inside. Attached to both sides are end pieces (σ) that connect to the vines that can be opened and closed via hinges.

The outer surface (7) of the frame (2) is covered with decorative steel plate (
2) (Fig. 2), and these decorative plate steels have different colors and are regularly arranged.

By the way, these decorative sheet steels are formed according to the steps shown in FIGS. 3(a) to (C).
), apply the paint forming them at appropriate intervals.IL)
Next, a paint having a different color with different pigments mixed is applied to create a decorative board (tb) (k+), and then a paint for a decorative board <rc) is applied to the remaining space (C). -Third
As shown in Figure (C), paints of different colors are applied sequentially, but the surface (wa) has some unevenness, and the unevenness is removed and smoothed. The smooth paint surface (q
) has no gaps at the border and presents a continuous pattern as a whole. By the way, the decorative board is made by adding a thixotropic agent and additives to a paint mixture containing an epoxy resin as a main component and a curing agent and a pigment. A substance containing the following components can be used.

A: Epicorton Sassycas) SS Erosyl Base (The) Epoxy resin 90% Thixotropic agent 10%B
: Epicordon Sashicast SS Clear EX-
1 (4) Epoxy resin 95% Thixotropic agent (Thixotropy, Quasent) 4.5
% Additive (Aditiib) 0.5% These are commercially available and are contained in the epoxy resin, which is the main component of the decorative board (a), and are mixed in appropriate proportions. After vacuum degassing the paint and applying each color sequentially as above, and smoothing the surface, 1.5
Heat and harden at a temperature of about 0°C to 80°C.

Fig. 4 shows a case in which a similar decorative piece is formed on the outer surface of the endpiece σ), but it is also possible to form it on the connecting plate U) or the temple. Then, the proportions of A and B are appropriately adjusted and used depending on the shape to which the paint is applied.
For example, when applying to a flat plate surface such as armor (5), A
: 3=7 for B, A when applying to the outer surface of frame (2)
:Bi mixed in a ratio of 2:4 is mixed in the paint containing the epoxy resin as a main component at a ratio of about 2 to 5%.

As described above, the method for manufacturing the eyeglass frame decoration according to the present invention includes an epoxy resin as a main component, a curing agent, a pigment, and other thixotropic agents that act to prevent sagging, and additives that act to prevent color separation. This is a decorative board manufacturing method that is formed by defoaming paint mixed with the above pigments, applying it regularly according to the color of the above pigment, leveling the surface smoothly, and curing. can.

(Effects) (1) The makeup and plate chains formed by the manufacturing method of the present invention are mainly composed of epoxy resin, and have various colors due to the pigments mixed in, and unlike the pattern transferred to the outer surface, the pattern is It does not change color or fade, and the pattern can remain vividly colored for a long time.

C) Since this method does not require high-temperature heating like transfer, it can be applied to both plated frames and frames containing parts made of heat-sensitive materials such as celluloid, expanding the range of decorative applications for eyeglass frames. Can be expanded.

(3) Since the paint, which is mainly composed of epoxy resin, contains a thixotropic agent to prevent sag and an additive to prevent color separation, it can be easily applied to the outer surface of a narrow frame, etc. Furthermore, by leveling the surface, a smooth decorative board (7) can be obtained, and an elegant pattern can be obtained without the need for polishing or lapping the decorative board after hardening.

[Brief explanation of the drawing]

FIG. 1 shows an example of a decorative body for an eyeglass frame manufactured by the manufacturing method of the present invention, and FIG.
-A cross section, FIGS. 3(a) to 3(c) show the manufacturing process of the decorative board, and FIG. 4 shows an example of the case where it is realized in the endpiece. (c・war・front frame (,2)...−
Frame (3)... Connecting plate l)... Nose pad σ)... Endpiece 2)... Lens (7)... Outer surface Chain... Decorative plate (
9)...Surface

Claims (2)

[Claims] (1) A thixotropic agent that prevents sag and an additive that prevents color separation are mixed into a paint that is mainly composed of epoxy resin, a curing agent, and a pigment, and after the paint is defoamed under vacuum, Applying the paint to the outer surface of the frame, applying the paint regularly according to the color of the mixed pigment, smoothing the applied paint surface, and heating it to about 50°C to 80°C to harden it. A method for manufacturing an eyeglass frame decoration body characterized by: (2) a thixotropic agent as the thixotropic agent;
Claim 1 using additive as an additive
A method for manufacturing the eyeglass frame decoration described in 2.