JP2008302684A - Manufacturing method of decorative resin plate - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To inexpensively and simply form a three-dimensional pattern on the surface of an acetate resin plate used for cell frames of eyeglasses or accessories. <P>SOLUTION: The decorative resin plate is provided wherein irregular decorative pattern is carved on the surface of a glass substrate, the irregular decorative pattern 22 is transferred to a silicon mold 20, chips or powder of acetate resin or a mixture thereof is dissolved in ethylene glycol monomethylether acetate, and the substance 30 thus obtained is injected into a mold, the acetate resin plate 40 is set in contact with the substance 30 as a lid, drying it for 3-24 hours at 15-60°C, to integrally form the irregular decorative pattern on the surface of the acetate resin plate. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a method for producing an acetate resin (cellulose acetate) decorative board.

  Conventionally, as a method of providing a three-dimensional pattern on the surface of an eyeglass cell frame or an acetate resin plate used for accessories, (i) engraving of an uneven pattern by sandblasting, etc. 2. Description of the Related Art Engraving, (iii) a method of providing an elaborate uneven pattern on the inner surface of a mold, and (iv) a processing method using an embossing roll or the like have been implemented.

  However, as described in (i) above, when engraving of the concavo-convex pattern by sandblasting or the like is performed on the surface of a soft object such as a resin, the edges do not stand up and the periphery of the concavo-convex pattern becomes blurred, and an elaborate concavo-convex pattern is provided I couldn't do it.

  Next, in the case of engraving the pattern with the laser of (ii), when applied to a resin plate, the surface remains burnt and the surrounding area melts due to residual heat, and this also failed to provide a fine uneven pattern. . And, as shown in (iii), in the method of providing an elaborate uneven pattern on the inner surface of the mold, it is possible to express an extremely fine uneven pattern with an edge, but it is very expensive to manufacture the mold. Has been hung.

  In the processing method (iv) using an embossing roll or the like, the equipment is too expensive, and it is not suitable for the production of a large variety of small lots.

  Accordingly, in the present invention, in order to solve the above-mentioned problem, a concave / convex decorative pattern is engraved on the surface of the glass substrate, the concave / convex decorative pattern is copied on a silicon mold, and the copied concave / convex decorative pattern of the silicon type is copied. On the pattern, a piece of acetate resin fragments or powder or a mixture thereof dissolved in ethylene glycol monomethyl ether acetate is cast, and the lid is put on the surface so as to be in contact with the acetate resin plate. It was dried at 15 ° C. to 60 ° C. for 3 to 24 hours to provide a method for producing a decorative resin plate characterized by integrally providing an uneven decorative pattern on the surface of the acetate resin plate. Furthermore, the uneven decorative pattern is colored to make it more vivid.

  According to the method for producing a decorative resin plate of the present invention, it is possible to easily express an uneven pattern with an edge on the surface of a resin plate at low cost. Applicable to a wide variety of small lots and a wide range of design applications. In addition, the above-mentioned pieces or powders of acetate resin are friendly to the environment and can contribute to the prevention of global warming since cutting wastes and uncut parts of eyeglass materials can be used.

  A concave and convex decorative pattern is engraved on the surface of the glass substrate, the concave and convex decorative pattern is copied onto a silicon mold, and a piece of acetate resin or powder or a mixture thereof is placed on the copied concave and convex decorative pattern of the silicon mold. What was dissolved in ethylene glycol monomethyl ether acetate was cast, covered with an acetate resin plate and then covered, and dried at 15 to 60 ° C. for 3 to 24 hours, A method for producing a decorative resin plate, characterized in that an uneven decorative pattern is integrally provided on the surface of an acetate resin plate.

First, as shown in FIG. 1A, an uneven decorative pattern 16 is engraved on the surface of the glass substrate 10.
At this time, masking 12 may be provided as shown in FIG. 1 when sandblasting or the like is used, and masking may not be necessary when laser is used. And since it is a glass substrate, the uneven | corrugated pattern (emboss) 16 with the clear outline of the periphery where the edge stood is completed.

  Next, as shown in FIG. 1B, the masking is removed and the silicon resin 20 is poured to transfer the uneven pattern 16 to the silicon mold. Then, as shown in FIG. 2 (a), on the uneven decorative pattern 22 portion of the silicon resin mold 20, acetate resin fragments, powder or a mixture thereof (A) is added to commercially available ethylene glycol monomethyl ether acetate (B). (A) 2-4: (B) The ornament 30 dissolved at a ratio of 5-6 is cast. In this case, the crushed pieces or powder of the acetate resin or a mixture thereof can be used, for example, as cutting waste for manufacturing eyeglasses, and is also useful for recycling waste. In addition, when coloring, colored cutting waste can be used. Of course, it is also possible to add a dye. Here, it is also possible to dissolve the acetate (cellulose acetate) in ethylene glycol monomethyl ether to obtain the above ratio.

  Next, as shown in FIG. 2B, acetate resin fragments, powder or a mixture thereof (A) is added to commercially available ethylene glycol monomethyl ether acetate (B), and (A) 2-4: (B) 5-6. The decorative object 30 dissolved at a ratio of 5 is casted, and the acetate resin plate 40 is put in a state of being covered so as to contact the surface. If the lid is not left in this way, it will not dry and solidify.

  And if it is room temperature, it will be dried in the state which covered the lid for 3 to 6 hours at 40 to 60 degreeC if it is mechanical drying all day and night. It is also possible to place a weight G here. Further, the thickness of the decorative portion is not particularly limited, but is suitably about 0.2 mm to 5 mm.

  Thus, an uneven decorative resin plate 40a with an edge is completed as shown in FIG.

  Then, the uneven decorative resin plate is cut or die cut and used as the resin glasses front frame 50 as shown in FIG. This kind of glasses frame has an unprecedented appearance and feel, and you can expect a wide variety of designs. Similarly, as shown in FIG. 5, it can be used as a resin decorative temple 60 and can enjoy various designs of fine uneven patterns (embosses). After this, barrel polishing and puff polishing were performed as finishing, but even after the processing, the edge portion remained firmly and did not appear blurred.

  In addition, as shown in FIG. 6, it can also be used as an artificial nail 70. Even when the decoration is applied by hand, if the concavo-convex pattern of the background portion is placed in advance, the production time is about half. The time to wait for customers is reduced, and the turnover rate of customers is improved. In addition, although not shown, it can be used as a hair ornament or other accessories.

  As described above, it can be applied not only to glasses but also to accessories, and it is possible to provide technology that is friendly to the natural environment in response to a wide variety of small lots.

(A) Cross-sectional view in which uneven pattern is provided on glass substrate of embodiment of the present invention (b) Cross-sectional view in which silicon resin is cast in (a) (A) Cross-sectional view in which a decorative resin is poured into the silicon mold of FIG. 1 (b) (b) Cross-sectional view of the acetate resin placed on FIG. Decorative plate plan view of the present invention Front view of the glasses front frame cut out from the state of FIG. Front view of the temple frame cut out from the state of FIG. The perspective view which cut out the artificial nail from the state of FIG.

Explanation of symbols

10, glass substrate 12, masking 14, 16, concavo-convex pattern 20, silicon resin 22, silicon resin concavo-convex pattern 30, mixed ornament 40, acetate resin 50, resin glasses front frame 60, resin temple 70, artificial nail

Claims (2)

A concave and convex decorative pattern is engraved on the surface of the glass substrate, the concave and convex decorative pattern is copied onto a silicon mold, and a piece of acetate resin or powder or a mixture thereof is placed on the copied concave and convex decorative pattern of the silicon mold. What was dissolved in ethylene glycol monomethyl ether acetate was cast, covered with an acetate resin plate and then covered, and dried at 15 to 60 ° C. for 3 to 24 hours, A method for producing a decorative resin plate, characterized in that an uneven decorative pattern is integrally provided on the surface of an acetate resin plate. 2. The method for producing a decorative resin plate according to claim 1, wherein the uneven decorative pattern is colored.

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