JP2020028985A - Manufacturing method for painted tableware, and painted tableware - Google Patents

Abstract

To provide a method that can manufacture, with a simple configuration, tableware whose material ia made of a melamine resin for which decorative hue on a served face side and hue on a rear face of the tableware are harmonized.SOLUTION: There is provided a painted tableware 1. There are provided the steps comprising a primary molding step A of compression-molding, by a color base 5 as a tableware base in similar color to deep color in chromatic color at a die or hue at a decoration part; a secondary molding step B of performing a white glaze coating treatment by charging a white-colored white glaze material into the die, and molding a white resin film 6 having a thickness at which hue of a color base becomes invisible; a ternary molding step C of charging a foil 7 having the decoration part printed thereon so as to correspond to the white resin film into the die and integrating the foil with an upper surface of the white resin film; and a quaternary molding step D of performing a transparent glaze coating treatment on the entire upper surface of the white resin film by charging a transparent glaze material into the die so as to correspond to the color base white color film into which the foil is integrated in the ternary molding step, and molding a transparent resin film 8 on the upper surface of the white resin film.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a method for producing a tableware made of melamine resin and a tableware obtained from the method.

  As one type of compression molded product using melamine resin as a material, Patent Document 1 discloses a recycled melamine resin molded product made of a recycled melamine resin material for compression molding, and a compression molded product for obtaining such a compressed molded product. It shows a recycled melamine resin material, a recycled melamine resin molded article, tableware, and a method for producing a recycled melamine resin molded article.

  The paragraph No. 0021 of the above-mentioned Patent Document 1 discloses that when a painting process using a foil is performed directly on a base (fabric) of a recycled melamine resin molded product, the base is limited to a dark color, The color glaze coating layer, such as white, is used for painting because the color pattern or unevenness of the base is set off and the pattern or character of the pattern is blurred or the color saturation of the color is reduced. It is shown to be used as a foil underlayer.

JP 2010-195871 A

  The compression-molded article using a general melamine resin as a molding material without using the above-mentioned regenerated melamine resin includes tableware having a plastered surface configured with a richly colored pattern or logo in the decoration to be painted, It has been widely used in ordinary households.

  Many types of bases (fabrics) are produced in various colors instead of white for the purpose of increasing the variety of dishes. Further, it is considered that decorativeness of a tableware having a color other than white as a base is improved by applying a pattern, a logo, or the like to a surface on which the table is provided.

  When decorating the serving surface of tableware made of melamine resin as a compression molded product, painting is conventionally performed using a foil on which a pattern etc. is printed, but the base color is set as a chromatic color When a piece of tableware is painted with foil, the color of the base is transparent in the painted decorative part, as in the case of the above-mentioned recycled melamine resin molded product, and the pattern and logo etc. are blurred and the color saturation is May fall.

  If there is a possibility that the color of the base is transparent to the pattern or logo painted with the foil in this way, the tableware itself is replaced with a lower base portion having a color (a melamine resin having a chromatic color material). The part formed by the molding material) and the part of the upper base that is white on the mounting surface side (the part molded by the molding material of melamine resin having a white coloring material) are laminated. I just need. Making the upper base portion play a role of a white background on the side of the placement surface is a measure to prevent the color of the decorative portion painted with the foil from being impaired.

  When manufacturing tableware having the above structure in which a white upper base and a chromatic lower base are laminated, first, a white upper base serving as a tableware placing surface side is compression-molded using an upper base molding die. Will do.

  Next, as the lower base color, the colors that are similar to the main color of the decoration, among the colors that make up the decoration such as pictures and logos, and the image colors specified in the pictures and logos A similar color is selected, and further a chromatic dark color suitable for the intended use of the tableware is selected. Then, the lower base is formed by using a melamine resin having the color material of the above color as a molding material.

  The lower base is integrated with the upper base. In forming the lower base, the upper base removed from the upper base molding die is set in a tableware forming die, and then the tableware forming metal is set. A molding material for the lower base is put into a mold and compression molded.

  Thereafter, a painting foil is arranged on the upper surface side of the upper base, which is the side of the tableware, and the mold is closed with a mold for tableware under the conditions of painting. Thereby, the decoration printed on the foil is integrally formed on the surface of the upper base.

  After the painting is completed, a transparent glaze material, which is a transparent compression molding material, is put into the tableware molding die, and the mold is clamped under coating conditions. As a result, a transparent glaze coating process is performed on the entire upper surface of the upper base so that the painted portion is also covered.

  As described above, a melamine resin-painted tableware in which the serving surface is a white background and a decoration such as a pattern or a logo, and the decoration has a decorative portion composed of a color different from the color of the white background. can get.

  However, in the above-mentioned tableware in which the white base on the serving surface side is formed by the white upper base, the thickness of the upper base is at least about 1 mm or more even if the thickness of the upper base is thin. However, there is a problem in that the thickness of the material is large, and a large amount of compression molding material is required, thereby increasing the material cost.

  Further, since the white upper base itself slightly shrinks after the upper base is formed, the mold for forming tableware needs a mold adjusted in accordance with the amount of shrinkage. Therefore, a mold used in the step of forming the upper base and a mold used in the step of forming the tableware are separately prepared, which causes a problem of increasing the manufacturing cost.

  In view of the above circumstances, the present invention sets the color of the decorative portion painted on the layout surface side to be similar to the color of the base, and the color of the pattern and logo constituting the decorative portion is provided. The purpose is to make it possible to manufacture tableware that does not assimilate with the surroundings of the decorative part when viewed from the surface side, at a low price, and the color of the decoration on the mounting surface and the color of the base appearing on the opposite side to the mounting surface. The purpose is to provide tableware that is harmonious.

(Invention of claim 1)
The present invention has been made in view of the above problems, and is a method for manufacturing a melamine resin-painted tableware, in which a serving surface (2) on which food such as a cooked product is placed has a white background and a handle. A method for producing a melamine resin-painted tableware (1) having a decorative part (4), which is a decoration such as a logo or a logo, the decoration being composed of a color different from the color of a white background,
A melamine resin material having a chromatic dark color or a color material similar to the color of the decorative portion is charged into the mold (9) as a fabric material, and compressed by the mold (9) to produce a chromatic dark color. A primary molding step (A) of compressing and molding a color base (5), which is a tableware cloth, in a color similar to the color or the color of the decorative part;
A white and white glaze material is introduced into the mold (9) so as to correspond to the side of the mounting surface (2) of the color base (5) molded in the primary molding step (A), and the mold ( By the compression according to 9), a white resin film (6) having a thickness such that the color of the color base (5) is invisible is formed on the entire surface of the color base (5) on the side of the mounting surface (2). A secondary molding step (B) of performing a white glaze coating process on one side of the color base (5) that is to be the mounting surface (2);
The decorative portion (4) is printed so as to correspond to the white resin film (6) on the color base (5) having the white resin film (6) formed in the secondary molding step (B). The foil (7) is put into the mold (9), and compressed by the mold (9) to form a tertiary molding step (C) in which the foil (7) is integrated with the upper surface of the white resin film (6). When,
In the tertiary molding step (C), a transparent glaze material is applied to the gold base so as to correspond to the white resin coating (6) on the color base (5) having the white resin coating (6) with the integrated foil (7). A transparent resin film (8) is formed on the upper surface of the white resin film (6) in which the foil (7) is integrated by being put into a mold (9) and compressed by the mold (9). And a quaternary molding step (D) of performing a transparent glaze coating treatment on the entire upper surface of the white resin film (6). It is.

(Invention of claim 2)
Another invention is a decorative tableware (1) manufactured by a method for manufacturing decorative tableware, wherein the white resin film (6) has the color base (3) when viewed from the mounting surface (2) side. The color base (5) makes the decorative portion (4) located on the mounting surface (2) invisible when viewed from the color base (5) side. A painted tableware characterized by having a certain characteristic, and the above problem is solved by providing the painted tableware.

  According to the present invention, the white resin film on the serving surface side of the tableware becomes white and the color of the color base is made invisible from the color base side to the serving surface side, so that the color of the color base is transparent on the serving surface side. The patterns and logos that make up the decorative part are clearly and clearly expressed on a white background.

  In addition, since the color of the color base is set to a chromatic dark color or a color similar to the color of the decorative part, the atmosphere and the decorative part brought out from the color base color on the wide surface opposite to the serving surface of the painted tableware were seen. It is easy to harmonize with the atmosphere at the time, and it is easy to improve the decorativeness of the tableware by the decorative part

  Furthermore, a mold only for forming the white upper base as in the conventional art is not necessary, and a set of molds is used to perform the steps from the primary molding process for obtaining the color base to the quaternary molding process for obtaining the tableware, thereby producing the painted tableware. Cost can be reduced.

  And, since the white base, which has become thick, is replaced with a thin resin film to form a white background, the thickness of tableware is reduced, the amount of molding material used is reduced, and the excellent effect of reducing material costs can be achieved. To play.

BRIEF DESCRIPTION OF THE DRAWINGS It is explanatory drawing which shows the example of the embodiment of the painting tableware which concerns on this invention in the state seen from the upper direction. It is an explanatory view showing the state where the partial section in an example of an embodiment was expanded. It is explanatory drawing which shows the stage of the primary shaping | molding process which concerns on manufacture of a painting tableware. It is explanatory drawing which shows the stage of a secondary molding process. It is explanatory drawing which shows the stage of a tertiary molding process. It is explanatory drawing which shows the stage of a quaternary shaping | molding process.

  Next, the present invention will be described in detail based on the embodiment shown in FIGS. In the drawing, reference numeral 1 denotes a dish-shaped painting tableware formed by using a melamine resin as a material, and on the side of the serving surface 2 of the painting tableware 1, as shown in FIG. A decorative part 4 made of a pattern expressed by a chromatic color is provided in the vicinity.

  As shown in the cross section of FIG. 2, the tableware for painting 1 has a color base 5 as a tableware cloth, and a white resin film 6 laminated and integrated on the entire surface of one side of the color base 5 on the side of the serving surface 2. A painting foil 7, which is provided at a position along the outer peripheral edge 3 of the tableware where the decorative portion 4 is arranged, and is laminated and integrated with the white resin film 6, The transparent resin film 8 is laminated and integrated so as to cover the foil 7.

(Decoration department)
The decorative portion 4 is a decoration such as a pattern or a logo, and is formed using a color material having a chromatic color different from white, that is, a color of the white resin film 6. It is formed by printing on the foil 7 for painting. The foil 7 is a known painting paper which is used when painting a tableware or the like manufactured by compression molding using a melamine resin as a material, and is impregnated with the melamine resin. When the decorating tableware 1 is formed, the material portion of the foil 7 becomes invisible and only the decorative portion 4 can be seen on the serving surface 2.

(Color base)
The color base 5 is formed from a molding material in which a melamine resin material is mixed with a coloring agent that is a chromatic dark color or a coloring material having a similar color to the color of the decorative portion 4. The thickness of the color base 5 occupies most of the thickness of the painting tableware 1 in the thickness of the painting tableware 1 in the longitudinal sectional direction. In FIG. 2, the layer on the side of the serving surface is shown thicker so that the configuration in the cross section of the tableware 1 can be easily understood.

(White resin film)
The white resin film 6 is a portion made of a glaze material (coating resin material) for coating the surface on the side of the mounting surface 2 of the color base 5, and is not pressurized by compression using a mold. It is formed using a white glaze material that becomes white when performed. That is, it is a thin film layer of a film resin formed by performing a white glaze coating process.

  The white resin film 6 is formed integrally on the entire surface of the color base 5 on the mounting surface 2 side, and the color of the color base 5 is invisible on the mounting surface 2 (the color of the color base 5 cannot be seen through). And serves as a white background on the arrangement surface 2 and has a role of making the decorative portion 4 stand out.

(Transparent resin film)
As described above, the transparent resin film 8 is formed using a glaze material for coating the entire upper surface of the white resin film 6 so as to cover the foil 7 including the decorative portion 4 and the white resin film 6. This portion is formed using a glaze material that becomes transparent when pressure is applied by compression using a mold. That is, it is a thin film layer of a film resin formed by performing a transparent glaze coating process.

  Since the transparent resin film 8 is transparent, the white color of the white resin film 6 and the decorative portion 4 can be visually observed. Further, it is the uppermost layer on the mounting surface 2 and has a role of protecting the white resin film 6 and the decorative portion 4.

(Manufacturing method, FIGS. 3 to 6)
The method of manufacturing the tableware 1 having the above-described configuration includes a primary molding step A, a secondary molding step B, a tertiary molding step C, and a quaternary molding step D performed using a set of dies including an upper mold and a lower mold. And sequentially go through these steps.

(Primary molding process)
The primary molding step A is a step of molding the color base 5 and uses a melamine resin material mixed with a chromatic dark color or a colorant similar in color to the color of the decorative portion as a molding material. Then, as shown in FIG. 3, the molding material is sandwiched between molds 9 (mold injection), and the color base 5 is compression-molded by mold compression by the mold 9.

(Secondary molding process)
The secondary molding step B is a step of performing a white glaze coating process by molding the white resin film 6. A white glaze material is put into the mold 9 so as to correspond to the mounting surface 2 side of the color base 5 obtained in the primary molding step A, and the mold 9 is pressed and compressed to remove the white glaze material. The entire color base 5 is pressed to perform white glaze coating. The white resin film 6 formed in the secondary forming step B has such a film thickness that the color of the color base 5 becomes invisible on the side of the mounting surface 2 as described above. See FIG.

(Tertiary molding process)
The tertiary molding step C is a step of integrally providing a foil 7 on the upper surface of the white resin film 6 of the color base 5 having the white resin film 6 obtained in the secondary molding step B. In the tertiary molding step C, the foil 7 is put into the mold 9 so as to correspond to the white resin film 6 along the tableware outer peripheral edge 3 of the white resin film 6.

  Then, the mold 9 is clamped and compressed, and the whole is pressed while the color base 5 having the white resin film 6 and the foil 7 overlapping the white resin film 6 are overlapped, and the decorative part 4 is formed by printing. The color base 5 is formed by integrating the foil 7 on the upper surface of the white resin film 6. See FIG.

  When the foil 7 is integrated with the white resin film 6, the decorative portion 4 is placed on the upper surface of the white resin film 6. On the mounting surface 2 side, the decorative portion 4 is arranged with the white resin film 6 as a white background, so that the colors constituting the decoration such as the design and the logo of the decorative portion 4 stand out. Further, when the color of the color base 5 is seen through the decoration part 4, the decoration part 4 itself is hard to stand out. However, since the color of the color base 5 is made invisible by the white resin film 6, the decoration part 4 is invisible. All four also stand out.

(Fourth molding process)
The fourth forming step D is a step of performing a transparent glaze coating process by forming the transparent resin film 8. A transparent glaze material is put into the mold 9 so as to correspond to the upper surface of the white resin film 6 in which the decorative part 4 obtained in the tertiary molding step C is integrated, and the mold 9 is clamped and compressed. The whole of the color base 5 in which the decorative part 4 is integrated and the transparent glaze material are pressed to perform a transparent glaze coating process.

  The transparent resin film 8 formed in the fourth forming step D is to cover and protect the entire upper surface of the white resin film 6 in which the decorative portion 4 and the foil 7 are integrated. Of course, the decorative portion 4 and the white resin film 6 can be seen through the transparent resin film 8. See FIGS. 1 and 6

  The mold 9 used in manufacturing the decorative tableware 1 is not changed for each process. As described above, the same mold 9 is used in each of the steps from the primary molding step A to the quaternary molding step D, and each step proceeds while repeating mold opening, material input, and mold clamping.

  In the decorative tableware 1 manufactured through the above steps, the color of the color base 5 cannot be confirmed on the side of the mounting surface 2 due to the white resin film 6 when viewed from the side of the mounting surface 2, and the decoration The color of the part 4 and the decorative part 4 itself become noticeable. In addition, when viewed from the back side of the tableware, the color base 5 prevents the decorative part 4 from being seen on the back side of the tableware, thereby preventing the decoration part 4 from being seen through the back side of the tableware. It is a deterrent.

  3 to 6, the thickness is exaggerated to make the white resin film 6, foil 7, and transparent resin film 8 easy to see.

DESCRIPTION OF SYMBOLS 1 ... Painting tableware 2 ... Placing surface 3 ... Tableware outer periphery 4 ... Decoration part 5 ... Color base 6 ... White resin film 7 ... Foil 8 ... Transparent resin film 9 ... Die A ... Primary molding process B ... Secondary molding process C … Tertiary molding process D… Quarter molding process

Claims (2)

This is a method for manufacturing a melamine resin-painted tableware, wherein a serving surface (2) on which a food such as a cooking product is placed is a white background and a decoration such as a pattern or a logo. And a decorative part (4) composed of a different color from the above.
A melamine resin material having a chromatic dark color or a color material similar to the color of the decorative portion is charged into the mold (9) as a fabric material, and compressed by the mold (9) to produce a chromatic dark color. A primary molding step (A) of compressing and molding a color base (5), which is a tableware cloth, in a color similar to the color or the color of the decorative part;
A white and white glaze material is introduced into the mold (9) so as to correspond to the side of the mounting surface (2) of the color base (5) molded in the primary molding step (A), and the mold ( By the compression according to 9), a white resin film (6) having a thickness such that the color of the color base (5) is invisible is formed on the entire surface of the color base (5) on the side of the mounting surface (2). A secondary molding step (B) of performing a white glaze coating process on one side of the color base (5) that is to be the mounting surface (2);
The decorative portion (4) is printed so as to correspond to the white resin film (6) on the color base (5) having the white resin film (6) formed in the secondary molding step (B). The foil (7) is put into the mold (9), and compressed by the mold (9) to form a tertiary molding step (C) in which the foil (7) is integrated with the upper surface of the white resin film (6). When,
In the tertiary molding step (C), a transparent glaze material is applied to the gold base so as to correspond to the white resin coating (6) on the color base (5) having the white resin coating (6) with the integrated foil (7). A transparent resin film (8) is formed on the upper surface of the white resin film (6) in which the foil (7) is integrated by being put into a mold (9) and compressed by the mold (9). And a quaternary forming step (D) of performing a transparent glaze coating process on the entire upper surface of the white resin film (6).   The painting tableware (1) produced from the method for producing a painting tableware according to claim 1, wherein the white resin film (6) is the color base (5) when viewed from the side of the plating surface (2). And the color base (5) makes the decorative portion (4) located on the mounting surface (2) invisible when viewed from the color base (5) side. Painting tableware characterized by the following.

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