JP2001149197A - Synthetic resin tableware with pattern on both surfaces and method of manufacturing the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method for manufacturing tableware made of a synthetic resin with patterns on both surfaces capable of providing pattern-printed surfaces for the inner and outer circumferential surfaces of tableware through the use of molding sheets in which patterns are printed and faithfully reproducing the feel of a material such as earthenware and lacquer ware without causing distortion in a synthetic resin for a tableware body due to heat. SOLUTION: An inner molding sheet 2 made of a resin in which patterns 6 are printed in the inside surface is fitted over the surface of a male mold 1 in such a way that the patterns 6 are in contact with the surface of the male mold 1. An outside molding sheet 4 made of a resin in which patterns 7 are printed in the outside surface is fitted over the surface of a female mold 3 in such a way that the patterns 7 are in contact with the surface of the female mold 3. A synthetic resin 5 for a tableware body is injected between the inside molding sheet 2 and outside molding sheet 4 from an opening part 8 provided in the bottom surface of the outside molding sheet 2 to mold tableware, and protective coating layers 10 with pattern-printed surfaces are provided for the surfaces of the inside molding sheet 2 and outside molding sheet 4 of the molded tableware.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to images of various types of tableware made of ceramic, lacquerware or glass, metal, wood, bamboo, or the like, each having a pattern on both the inner and outer peripheral surfaces. The present invention relates to a mass-producible synthetic resin tableware with a double-sided pattern and a method for producing the same.

[0002]

2. Description of the Related Art Conventionally, as a method for providing a pattern on the surface of a synthetic resin tableware, for example, a thermoplastic synthetic resin film provided with a pattern printing surface on the surface is attached to a surface of a female mold. Paste the pattern so that the pattern is on the opposite side of the female mold, obtain a design sheet by vacuum forming in a state where the film is heated and softened, and fix the pattern sheet to the female mold. Tableware in which the pattern is provided between the pattern sheet and the resin layer for the tableware body by polymerizing the male mold and injecting a transparent synthetic resin for the tableware body between the pattern sheet and the male mold. Is manufactured by Tokubo 50-19
No. 132 and the like.

[0003] In the above-described tableware forming method, a tableware made of a thermoplastic synthetic resin film on which a pattern is printed is oriented such that the pattern is opposite to the female mold with respect to the surface of the female mold. And the transparent resin layer for the tableware is provided on the surface of the pattern, so that the pattern is interposed between the pattern sheet and the transparent resin layer for the tableware to be protected, and the tableware is continuously This has the advantage that the printed surface of the picture does not come off even if it is used repeatedly.

[0004]

However, in the tableware according to the above-described method, the molten thermoplastic resin for the tableware body is injected and injected into the surface of the pattern sheet on which the pattern printing surface is provided, so that the ink surface of the pattern becomes invisible. The shape and color of the pattern are distorted due to the heat of the molten thermoplastic resin, causing a problem that the precise image of the pattern cannot be faithfully represented or the pattern sheet is easily peeled off when the entire surface is an ink surface. ing.

In the tableware manufactured by the above-described molding method, a resin for the tableware body is injected into the surface of the pattern sheet on which the pattern print surface is provided, and the pattern print surface is made to be visible through the resin layer for the tableware body. Therefore, a transparent resin must be used as the resin for the tableware body on the surface, and if the tableware body is formed of a transparent resin layer, even if the internal pattern can be seen through the resin layer, Since the resin is a thick transparent body, there is a problem that the texture such as pottery and lacquer ware cannot be faithfully reproduced, and the meaning of making the picture visible cannot be exhibited.

On the other hand, in the above tableware forming method, a pattern is printed on a transparent sheet, and the pattern printing surface of the transparent pattern sheet is on the opposite side of the male mold from the surface of the male mold. When the male mold is superimposed with the female mold and the resin for the tableware body is injected between the female mold and the pattern sheet, the pattern of the molded tableware is thinned. It can be seen through a transparent pattern sheet, and the pattern is protected by being interposed between the pattern sheet and the main body resin layer. In this case, as in the case described above, the ink surface of the pattern is There is a problem that the shape and color of the pattern are distorted due to melting of the thermoplastic resin due to the heat and the image of the pattern cannot be faithfully represented, or the pattern sheet is easily peeled off when the entire surface is an ink surface. And it is not possible to solve the problem. No.

[0007]

SUMMARY OF THE INVENTION The present invention is intended to solve the above-mentioned problems associated with the conventional molding of synthetic resin tableware with a picture, using ceramics, lacquerware, glass, metal, wood, bamboo or the like. Using a pattern forming sheet made by photoengraving the pattern to be applied to various tableware, the inner and outer peripheral surfaces of the tableware, respectively, the printed surface of the pattern by the heat of the molten thermoplastic resin for the tableware body It is an object of the present invention to provide a synthetic resin tableware with a double-sided pattern capable of faithfully reproducing the texture of pottery and lacquer ware without causing distortion, and a method of manufacturing the same.

[0008] The invention of claim 1 is a method of manufacturing a synthetic resin tableware with a double-sided picture, wherein the shape is previously fitted to the surface of the male mold for forming the synthetic resin tableware. Molded into, and fitted with an inner molded sheet made of synthetic resin having a pattern represented on the inner peripheral surface of the tableware printed on the inner surface, so that the pattern printed surface is in contact with the surface of the male mold, On the surface of the mold, an outer molded sheet made of a synthetic resin, which is formed in advance in a shape to be fitted to the surface of the female mold, and a pattern represented on the outer peripheral surface of the tableware is printed on the outer surface, With the opening formed in the center of the bottom surface of the outer molded sheet, the picture printing surface is fitted so as to be in contact with the surface of the female mold, and the male mold and the female mold are superimposed to form a female mold. Synthetic resin for tableware body between the inner molded sheet and the outer molded sheet through the fitted outer molded sheet opening By injecting, an integrated tableware is formed by the inner molded sheet, the synthetic resin layer for the tableware body, and the outer molded sheet, and protection of a transparent pattern printing surface on the surfaces of the inner molded sheet and the outer molded sheet of the molded tableware. It is characterized by providing a coating layer.

A second aspect of the present invention relates to the configuration of the tableware manufactured by the above manufacturing method, wherein an inner molded sheet made of a synthetic resin having a pattern shown on the inner peripheral surface of the tableware printed on the inner surface, and an outer periphery of the tableware An outer molded sheet made of synthetic resin with the pattern shown on the outer surface printed on the outer surface, and a tableware composite injected between the inner molded sheet and the outer molded sheet through the opening in the center of the bottom of the outer molded sheet It is characterized by comprising a resin layer, and a protective coating layer for a transparent pattern printing surface is provided on the surfaces of the inner molded sheet and the outer molded sheet.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A tableware made of synthetic resin with a double-sided picture and a method of manufacturing the same according to the present invention will be described with reference to the drawings. An example of the tableware manufactured by this method is shown in FIG. , An inner molded sheet 2 made of synthetic resin attached to the surface of the male mold 1, an outer molded sheet 4 made of synthetic resin also attached to the surface of the female mold 3, an inner molded sheet 2 and an outer molded sheet 4 and a synthetic resin layer 5 for the tableware main body molded between them.

As shown in FIG. 2, the inner molded sheet 2 is formed by photolithography of a pattern 6 represented on the inner peripheral surface of a pottery, lacquer ware, or the like by offset printing or gravure printing, and has a thickness of 0.2 to 1. ABS resin film of about 0mm,
It is formed in advance by vacuum forming into a shape that fits on the surface of the male mold 1, and is formed so that the printed surface of the picture 6 is represented on the inner surface (inner peripheral surface) of the formed sheet 2. .

On the other hand, as shown in FIG. 3, the outer molded sheet 4 is the same as the inner molded sheet 2 obtained by photolithography of a picture 7 represented on the outer peripheral surface of a pottery, lacquer ware, or the like by offset printing or gravure printing. Is formed by vacuum forming an ABS resin film having a large thickness into a shape that is fitted to the surface of the female mold 3 in advance, and the printed surface of the pattern 7 is placed on the outer surface (outer peripheral surface) of the molded sheet 4. It is shaped to be. The outer molded sheet 4 is provided with an opening 8 for resin injection at the center of the bottom surface when vacuum forming is completed.

When forming tableware using the inner molded sheet 2 and the outer molded sheet 4, as shown in FIG. 4, the inner molded sheet 2 is placed on the surface of the male mold 1 for forming the tableware. The printed surface of the pattern 6 represented on the inner surface (inner peripheral surface) is fitted so as to be in contact with the surface of the male mold 1 and the female mold 3
The outer molded sheet 4 is placed on the outer surface (outer peripheral surface).
Are fitted so that the printing surface of the pattern 7 shown in FIG.

When the outer molded sheet 4 is fitted to the surface of the female mold 3, the outer molded sheet 4 is connected to the resin injection port 9 of the female mold 3 so that the opening 8 provided in the center of the bottom surface. It is arranged in the female mold 3.

Next, as shown in FIG. 5, the male mold 1 fitted with the inner molded sheet 2 and the female mold 3 fitted with the outer molded sheet 4 are polymerized and resin injection of the female mold 3 is performed. The molten tableware body synthetic resin 5 is injected and injected between the inner molded sheet 2 of the male mold 1 and the outer molded sheet 4 of the female mold 3 through the bottom opening 8 of the outer molded sheet 4 from the inlet 9. Inner molded sheet 2, tableware body synthetic resin 5, and outer molded sheet 4
Is molded into a piece of tableware.

When the tableware formed as described above is removed from the mold, as shown in FIG. 5, the pattern 6 on the surface of the inner forming sheet 2 on the inner peripheral surface and the outer form on the outer peripheral surface are formed as shown in FIG. Since the pattern 7 on the surface of the sheet 4 is exposed on both the inside and outside surfaces of the tableware, as a final treatment for protecting the printed surface of these patterns 6 and 7, FIG.
As shown in (1), a protective coating layer 10 is formed on the surface of the inner molded sheet 2 and the surface of the outer molded sheet 4 by spraying, for example, a polyurethane-based transparent resin paint.

[0017]

As described above, in the synthetic resin tableware according to the present invention, the printed surface of the picture 6 is formed on the inner surface (inner peripheral surface) in a shape fitted to the surface of the male mold 1 as described above. The inner molded sheet 2 formed as described above is fitted to the male mold 1 and the female mold 3
The outer molding sheet 4 formed so that the printing surface of the pattern 7 is formed on the outer surface (outer peripheral surface) in a shape to be fitted to the surface of the outer molding sheet 4 is fitted to the female mold 3. Since the tableware synthetic resin 5 is injected and injected between the inner molded sheet 2 and the outer molded sheet 4 through the bottom opening 8, it is possible to provide the patterns 6 and 7 on the inner peripheral surface and the outer peripheral surface of the tableware, respectively. As a result, it is possible to obtain a high-quality resin tableware that faithfully reproduces the image of a double-sided pattern pottery or lacquerware that could not be expected in the past as this type of tableware.

The inner molded sheet 2 is fitted to the male mold 1 such that the printed surface of the pattern 6 is in contact with the surface of the male mold 1, and the outer molded sheet 4 is fitted to the printed surface of the pattern 7. Is fitted into the female mold 3 so as to be in contact with the surface of the female mold 3, and the tableware synthetic resin 5 is injected between the inner molded sheet 2 and the outer molded sheet 4. 6,7
Are not in direct contact with the molten high-heat tableware synthetic resin 5 poured into the inside of both molded sheets 2 and 4, The ink surface is not melted by the influence of the heat of the tableware body synthetic resin 5 and the shape and color are not distorted, so that the texture of the precise pattern can be faithfully represented.

After the tableware has been formed, the pictures 6 and 7 are both provided on the outer sides of the two formed sheets 2 and 4, but the surfaces of the two formed sheets 2 and 4 in the formed tableware are:
Since the protective coating layer 10 of the patterns 6 and 7 is formed by spraying a transparent resin paint, the printed surface of the pattern does not peel off even if the tableware is repeatedly used continuously, and is safe for a long time. It has the advantage that it can be used for

[Brief description of the drawings]

FIG. 1 is a cross-sectional view showing the shape of a synthetic resin tableware with a double-sided pattern formed by the manufacturing method of the present invention.

FIG. 2 is a sectional view of a male mold and an inner molded sheet in a molding step.

FIG. 3 is a sectional view of a female mold and an outer molded sheet in a molding step.

FIG. 4 is a sectional view showing a state before injecting a main body resin in which a male mold and a female mold are superposed.

FIG. 5 is a cross-sectional view showing a state immediately after molding in which main body resin injection is injected.

[Explanation of symbols]

 1: Male mold 2: Inside molded sheet 3: Female mold 4: Outside molded sheet 5: Synthetic resin for tableware body 6: Inside picture 7: Outside picture 8: Bottom opening of outside molded sheet 9: Resin injection port 10: Transparent protective coating layer

Claims (2)

[Claims] Claims: 1. A male mold forming a synthetic resin tableware is formed on a surface of a male mold in advance so as to be fitted to the surface of the male mold,
And, an inner molded sheet made of a synthetic resin in which a pattern represented on the inner peripheral surface of the tableware is printed on the inner surface is fitted so that the pattern printing surface is in contact with the surface of the male mold, and the surface of the female mold. In
Molded in advance into a shape fitted to the surface of the female mold, and
An outer molded sheet made of a synthetic resin in which a pattern represented on the outer peripheral surface of the tableware is printed on the outer surface, the pattern printed surface is the surface of the female mold in a state where an opening is provided at the bottom center of the outer molded sheet. The male mold and the female mold are superimposed on each other, and the male mold and the female mold are superimposed on each other to form a synthetic body for the tableware body between the inner molded sheet and the outer molded sheet through the opening of the outer molded sheet fitted to the female mold. By injecting the resin, an integrated tableware is formed from the inner molded sheet, the synthetic resin layer for the tableware body, and the outer molded sheet, and a transparent pattern printing surface is formed on the surfaces of the inner molded sheet and the outer molded sheet of the molded tableware. Method for producing a synthetic resin tableware with a double-sided pattern provided with a protective coating layer. 2. A synthetic resin inner molded sheet in which a pattern shown on the inner peripheral surface of the tableware is printed on the inner surface, and a synthetic resin sheet formed on the outer surface by printing a pattern shown on the outer peripheral surface of the tableware. An outer molded sheet, a tableware synthetic resin layer injected between the inner molded sheet and the outer molded sheet through an opening in the center of the bottom surface of the outer molded sheet, and the surfaces of the inner molded sheet and the outer molded sheet A double-sided, synthetic resin tableware with a transparent coating on the printed surface.