JP3031905B1 - Manufacturing method of color-coded molded products made of melamine resin and color-coded molded products - Google Patents
Manufacturing method of color-coded molded products made of melamine resin and color-coded molded productsInfo
- Publication number
- JP3031905B1 JP3031905B1 JP4713599A JP4713599A JP3031905B1 JP 3031905 B1 JP3031905 B1 JP 3031905B1 JP 4713599 A JP4713599 A JP 4713599A JP 4713599 A JP4713599 A JP 4713599A JP 3031905 B1 JP3031905 B1 JP 3031905B1
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- Japan
- Prior art keywords
- color
- molding
- coded
- molding material
- melamine
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- Table Devices Or Equipment (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Abstract
【要約】
【課題】 熱硬化性剛性樹脂の成形において色分け
が明確な成形方法を提供することと、明確に色分けされ
た熱硬化性剛性樹脂性成形品を提供すること。
【解決手段】 ２以上の色に色分けされた熱硬化性
合成樹脂製成形品を製造する方法において、設計された
当該色の領域に応じて、予め成形された任意形状の成形
材料を配置して、圧縮成形する色分け合成樹脂製成形品
を製造する方法、および明確に色分けされた熱硬化性剛
性樹脂性成形品。An object of the present invention is to provide a molding method in which a color is clearly defined in molding a thermosetting rigid resin, and to provide a thermosetting rigid resin-based molded article which is clearly colored. SOLUTION: In a method of manufacturing a thermosetting synthetic resin molded product which is color-coded into two or more colors, a molding material having an arbitrary shape which is preliminarily molded is arranged according to a designed color region. A method for producing a color-coded synthetic resin molded article to be compression-molded, and a thermosetting rigid resinous molded article clearly colored.
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、色分けされたメラ
ミン系樹脂製成形品の製法および色分け成形品に関す
る。The present invention relates to a color-coded camera
The present invention relates to a method for producing a molded resin product and a color-coded molded product.
【０００２】[0002]
【従来の技術】熱硬化性合成樹脂は、熱可塑性樹脂と比
べて剛性が高く、耐熱性に優れており、相当高い温度で
もその特性を維持するため、種々の成形品として広く利
用されている。また、ユリア樹脂、メラミン系樹脂など
の熱硬化性合成樹脂は、着色が容易であり、鮮明な色を
つけることができるので、多彩な着色成形品の製造が試
みられている。なかんずくメラミン系樹脂は、外観が美
しく、上品な感触をもつことと、衛生上安心できること
から、その特徴を活かして各種食器、日用品、電気部品
などが成形され、その用途は広い。とくに、メラミン樹
脂は硬くて上品な陶器を思わせる製品が造れることか
ら、食器用途には最適の樹脂である。2. Description of the Related Art Thermosetting synthetic resins are widely used as various molded articles because they have higher rigidity and higher heat resistance than thermoplastic resins, and maintain their properties even at a considerably high temperature. . Further, a urea resin, a thermosetting synthetic resin such as melamine resin, coloring is easy, because it can give a vivid color, it has been attempted to manufacture a variety of colored moldings. Above all, melamine- based resins have a beautiful appearance, an elegant feel, and are safe for hygiene, so that various characteristics of tableware, daily necessities, electric parts, etc. are molded utilizing their characteristics, and their applications are wide. In particular, melamine resin is the best resin for tableware because it can produce products that resemble hard and elegant pottery.
【０００３】このように用途の広いメラミン系樹脂の成
形品において、美観価値を高めるため、または使用目的
に合致させるため、各種色に着色したり、複数の着色で
模様を形成することがしばしば行われる。しかしなが
ら、成形によって、単色の着色をしたり、色の境界がぼ
やけた色分け模様は容易に行えるが、明確に色分けされ
た成形品を得ることは非常に困難であった。[0003] In such a melamine resin molded article having such a wide variety of uses, in order to enhance the aesthetic value or to meet the purpose of use, it is often practiced to apply various colors or to form a pattern with a plurality of colors. Will be However, it is easy to form a single color or to form a color-coded pattern with blurred color boundaries by molding, but it has been very difficult to obtain a molded product that is clearly colored.
【０００４】境界が明確な色分け成形品が製造できた
ら、成形品に鮮明な美観を与えるとともに、目的に応じ
て種々の色領域を有する成形品を製造することができる
ようになり、その用途が一段と拡大する。色分け成形品
を製造する試みは行われているが、明確に色分けされた
成形品を製造することは困難であった。たとえば実開昭
６３−１４９７１０では、色の異なる２以上の粒状素材
の適量ずつを成形金型内に互いに隣接するように配置し
て圧縮成形する方法が提案されている。[0004] Once the boundary can be manufactured clear color molded article, together provide a clear appearance to the molded article, it becomes possible to manufacture a molded article having a different color areas according to the purpose, its use Expand further. Attempts have been made to produce color-coded molded articles, but it has been difficult to produce clearly colored molded articles. For example, in the actual opening Akira 63-149710, arrangement and method for compression molding so as to be adjacent to each other colors different from 2 or more by a suitable amount of particulate material to the inside molding die has been proposed.
【０００５】また、上部と下部に色分けした椀形容器を
製造する試みも行われている。従来色分けした容器の製
造法としては、二度押し二色成形法などが用いられてい
たが、工程数が増し成形速度が低下するとともに、ひび
割れなどの品質上の問題が生じ易かった。これら問題点
を改良する試みとして、例えば特公昭５３−１６８１９
号や特公昭５５−５１７３６号において、特殊な金型を
用いる成形法が提案されている。これらの方法では、特
殊な金型を用いるほか、成形材料を粉末で扱うという手
間のかかる作業が必要であった。[0005] Attempts have also been made to produce bowl-shaped containers with different colors at the top and bottom. Conventionally, as a method of manufacturing a color-coded container, a double-pressing two-color molding method or the like has been used. However, the number of steps is increased, the molding speed is reduced, and quality problems such as cracks are easily caused. Attempts to improve these problems include, for example, Japanese Patent Publication No. 53-16819.
And Japanese Patent Publication No. 55-51736, a molding method using a special mold is proposed. In these methods, in addition to using a special mold, it was necessary to perform a troublesome operation of treating the molding material with powder.
【０００６】本発明者は、境界が明確な色分け成形品が
製造できる成形法を追求してきた。また本発明者は、特
殊な金型を用いることなく、通常の圧縮成形機で、短時
間に成形ができる、明確に色分けされた容器の製造を可
能とする成形法を追求してきた。その結果本発明に到達
した。The present inventor has pursued a molding method capable of producing a color-coded molded article having a clear boundary. Further, the present inventor has pursued a molding method which enables the production of a clearly color-coded container which can be molded in a short time with a normal compression molding machine without using a special mold. As a result, the present invention has been achieved.
【０００７】[0007]
【発明が解決しようとする課題】メラミン系樹脂の成形
において色分けが明確な成形品を製造する方法を提供す
ること。また、特殊な金型を用いることなく、通常の圧
縮成形機で、短時間に成形ができる、明確に色分けされ
た容器の製造を可能とする成形法を提供すること。さら
に、明確に色分けされたメラミン系樹脂製成形品を提供
すること。SUMMARY OF THE INVENTION An object of the present invention is to provide a method for producing a molded article having a distinct color in molding a melamine resin. It is another object of the present invention to provide a molding method capable of producing a clearly colored container which can be molded in a short time by a normal compression molding machine without using a special mold. Further, to provide a melamine resin molded article which is clearly colored.
【０００８】[0008]
【課題を解決するための手段】本発明は、２以上の色に
色分けされたメラミン系樹脂製成形品を製造する方法に
おいて、設計された当該色の領域に応じて、予め成形さ
れた任意形状の成形材料を配置して、圧縮成形すること
を特徴とする色分けメラミン系樹脂製成形品を製造する
方法を提供する。SUMMARY OF THE INVENTION The present invention relates to a method for producing a melamine-based resin molded article which is color-coded into two or more colors. The present invention provides a method for producing a color-coded melamine-based resin molded product, which comprises arranging the molding material of the present invention and performing compression molding.
【０００９】その好適な態様として、本発明は、２以上
の扇形柱状に予め成形された成形材料を円形柱状に配置
して、圧縮成形する方法を提供する。As a preferred embodiment thereof, the present invention provides a method of compressing and molding a molding material preformed into two or more fan-shaped columns in a circular column shape.
【００１０】他の好適な態様として、本発明は、円形も
しくは多角形のドーナツ状柱状で、内部中空部分が任意
形状の予め成形された成形材料の内部中空部分に、該内
部中空部分に挿入できる形状に予め成形された任意形状
の成形材料を挿入して、圧縮成形する方法を提供する。In another preferred embodiment, the present invention is a doughnut-shaped column having a circular or polygonal shape, and the inner hollow portion can be inserted into the inner hollow portion of a preformed molding material having an arbitrary shape. Provided is a method of inserting a molding material having an arbitrary shape preformed into a shape and performing compression molding.
【００１１】また、本発明は、２以上の色に色分けされ
たメラミン系樹脂製成形品を製造する際に、設計された
当該色の領域に応じて、予め成形された任意形状の成形
材料を配置して、圧縮成形することによって得られたメ
ラミン系樹脂製成形品を提供する。Further, the present invention provides a method for manufacturing a melamine-based resin molded product which is color-coded into two or more colors by using a molding material having an arbitrary shape which has been molded in advance in accordance with the designed color region. arranged to provide a resultant melamine resin molded article by compression molding.
【００１２】さらにまた本発明は、成形によって２以上
の色に色分けされたメラミン樹脂製成形品であって、色
と色の境界の色移行幅が５ｍｍ以下であるメラミン樹脂
製食器を提供する。Furthermore, the present invention provides a melamine resin molded product which is color-coded into two or more colors by molding, and has a color transition width of 5 mm or less at a boundary between colors.
【００１３】[0013]
【発明の実施の形態】本発明における色分けメラミン系
樹脂製成形品を製造する方法は、２以上の色に色分けさ
れたメラミン系樹脂製成形品を製造する方法において、
設計された当該色の領域に応じて、予め成形された任意
形状の成形材料を配置して、圧縮成形することを特徴と
する色分けメラミン系樹脂製成形品を製造する方法であ
る。BEST MODE FOR CARRYING OUT THE INVENTION The method for producing a color-coded melamine-based resin molded article according to the present invention is a method for producing a melamine-based resin molded article which is color-coded into two or more colors.
This is a method for producing a color-coded melamine-based resin molded product characterized by arranging a molding material of an arbitrary shape that has been molded in advance in accordance with a designed color region and compressing and molding.
【００１４】メラミン系樹脂とは、メラミン樹脂、ユリ
アメラミン樹脂、ベンゾグアナミン樹脂、フェノールメ
ラミン樹脂などのメラミンを使用した樹脂の総称であ
る。この中でもメラミン樹脂がもっとも好ましい。[0014] The melamine resins, melamine resins, urea melamine resins, benzoguanamine resins, is a general term for a resin using melamine and phenol melamine resins. Of these, melamine resins are most preferred.
【００１５】メラミン系樹脂の圧縮成形にあたっては、
通常未硬化樹脂に、充填材、添加剤などを混合して成形
材料を調製する。この際予め設計された色分け成形品中
で、所望の色が発現するよう成形材料を着色する。着色
のために、顔料などの着色剤を配合してもいいし、樹脂
を染色することもできる。In compression molding of a melamine resin,
Usually, a molding material is prepared by mixing a filler, an additive, and the like with an uncured resin. At this time, the molding material is colored so as to develop a desired color in a color-coded molded product designed in advance. For coloring, a coloring agent such as a pigment may be blended, or a resin may be dyed.
【００１６】かくして得られた成形材料は、予め成形し
て、予備成形された成形材料とする。予め成形される成
形材料の形状および大きさはとくに限定されないが、該
予備成形された成形材料は、設計された成形品の色分け
領域を形成するのに適当な領域に、実質的に空隙のない
状態に配置されることが好ましい。したがって、実質的
な割合で空隙ができるような、たとえば粉末状や、不定
形状の顆粒状の成形材料は好ましくない。The molding material thus obtained is preliminarily molded into a preformed molding material. Although the shape and size of the preformed molding material are not particularly limited, the preformed molding material is substantially free of voids in an area suitable for forming a color-coded area of the designed molded article. Preferably, they are arranged in a state. Therefore, for example, a powdery or irregular shaped granular molding material in which voids are formed at a substantial ratio is not preferable.
【００１７】また、一つの色領域に配置された一つまた
は複数の予備成形体と、他の色領域に配置された一つま
たは複数の予備成形体との位置関係は、設計された成形
品の色領域に応じて任意に決定されるが、予備成形体同
士の境界が実質的に空隙のない状態に配置されることが
好ましい。The positional relationship between one or a plurality of preforms arranged in one color region and one or a plurality of preforms arranged in another color region is determined by a designed molded product. Is determined arbitrarily according to the color region of the preform, but it is preferable that the boundaries between the preforms are arranged in a state where there is substantially no void.
【００１８】図１は、色分けされた円形形状の成形体を
製造するために、三個の予備成形された成形材料を圧縮
成形のために配置した状態の例を示している。図1の
Ａ、ＢおよびＣは、それぞれ異なった色となるように着
色剤の配合および／または染色が施されていてもよい。
また、図１において、ＡとＢ、ＡとＣまたはＢとＣが同
じ色である場合も、また本発明の実施態様である。FIG. 1 shows an example of a state in which three preformed molding materials are arranged for compression molding in order to produce a colored circular molded body. A, B, and C in FIG. 1 may be blended and / or dyed with a colorant so as to have different colors.
Also, in FIG. 1, the case where A and B, A and C or B and C have the same color is also an embodiment of the present invention.
【００１９】図１のように、扇形状に予備成形された成
形体を配置して、円形成形体を製造する場合、極めて明
確に色分けされた成形品が得られるので、同態様が本発
明の特徴を示す好ましい実施態様の一つである。As shown in FIG. 1, when a circular preform is manufactured by arranging a preform preformed in a fan shape, a molded product which is very clearly colored can be obtained. This is one of preferred embodiments showing characteristics.
【００２０】しかし本発明の実施態様は、それに限定さ
れるものではない。他の好適な実施態様を、本願の開示
から任意に選択することができる。好ましい他の実施態
様として、円形もしくは多角形のドーナツ状柱状で、内
部中空部分が任意形状の予め成形された成形材料の内部
中空部分に、該内部中空部分に挿入できる形状に予め成
形された任意形状の成形材料を挿入する形で配置された
予め成形された成形材料を挙げることができる。図２お
よび図３にこの態様を示した。図２は、予め成形された
ドーナツ状柱状成形材料Ｄと、内部中空部分に挿入でき
る形状に予め成形されたＤとは異なった色となる成形材
料Ｅとを示している。図３は、成形材料Ｄの内部中空部
分に、成形材料Ｅが挿入された形に配置された図であ
る。However, embodiments of the present invention are not limited thereto. Other preferred embodiments can be arbitrarily selected from the disclosure of the present application. In another preferred embodiment, a circular or polygonal donut-shaped pillar having an internal hollow portion formed in an internal hollow portion of a pre-formed molding material having an arbitrary shape, and an optional pre-formed portion having a shape insertable into the internal hollow portion. Pre-formed molding materials arranged in such a way as to insert the shaped molding material can be mentioned. This embodiment is shown in FIG. 2 and FIG. FIG. 2 shows a preformed donut-shaped columnar molding material D and a molding material E having a color different from that of the preformed D that can be inserted into the internal hollow portion. FIG. 3 is a diagram in which the molding material E is arranged in a hollow portion inside the molding material D in such a manner as to be inserted.
【００２１】この態様において、予め成形された成形材
料Ｄは円形だけでなく多角形その他種々の形状とするこ
とができる。また、予め成形された成形材料Ｅもまた種
々の形状をとりうる。好ましい形状は、ドーナツ状円筒
形の成形材料Ｄとその内部空間を埋める形で配置された
円柱形状成形材料Ｅの組合せである。成形材料Ｄおよび
Ｅは、それぞれ一つの成形材料として予め成形するのが
好ましいが、複数個に分けて成形してそれを組合せて使
用することもできる。In this embodiment, the preformed molding material D can be not only circular but also polygonal and various other shapes. Further, the molding material E that has been molded in advance can also take various shapes. A preferred shape is a combination of a donut-shaped cylindrical molding material D and a cylindrical molding material E arranged so as to fill the internal space. It is preferable that each of the molding materials D and E is molded in advance as one molding material, but it is also possible to divide the molding materials into a plurality of molding materials and use them in combination.
【００２２】この実施態様により、外側と内側で明確に
色分けされた成形品を得ることができる。また、この実
施態様を、椀形形状の容器の成形に使用すると、容器の
上部と下部で色分けした成形品が得られるので、上部と
下部で色分けした食器の製造に好適に使用できる。図４
に、椀形形状に成形された色分け容器の例を示した。According to this embodiment, it is possible to obtain a molded article in which the outer side and the inner side are clearly colored. Further, when this embodiment is used for molding a bowl-shaped container, a molded product in which the upper portion and the lower portion of the container are color-coded can be obtained, so that the embodiment can be suitably used for manufacturing tableware in which the upper portion and the lower portion are color-coded. FIG.
An example of a color-coded container formed in a bowl shape is shown in FIG.
【００２３】メラミン系樹脂の圧縮成形において、成形
材料を予め成形するタブレット成形は知られている。し
かしながらそのときのタブレットの形状は、通常短円柱
形であり、その目的は圧縮成形において、成形材料の扱
いを容易にするものであって、本願のように明確な色分
け成形品を得る目的で、本願のように特定の予備成形材
料を、特定の配置にして圧縮成形することとは、まった
く異なるものである。In the compression molding of a melamine resin, tablet molding in which a molding material is molded in advance is known. However, the shape of the tablet at that time is usually a short columnar shape, and its purpose is to facilitate the handling of the molding material in compression molding, and to obtain a clear color-coded molded product as in the present application, It is completely different from compression molding of a specific preform material in a specific arrangement as in the present application.
【００２４】予備成形された成形材料の大きさ、硬さ、
配合すべき成分などは、当業者が試験的成形などを通じ
て経験的に適宜選択しうるものである。予備成形された
成形材料の製造には、従来公知のタブレット製造機を使
用することができる。また、予備成形された成形材料の
製造条件も、当業者が適宜選択しうるものである。その
例として、例えば成形圧力５０〜１５０ｋｇ／ｃｍ2、
成形時間２〜１０秒間を挙げることができるが、これに
限定されるものではない。The size and hardness of the preformed molding material
Components to be blended can be appropriately selected empirically by a person skilled in the art through trial molding and the like. For the production of the preformed molding material, a conventionally known tablet making machine can be used. The manufacturing conditions of the preformed molding material can also be appropriately selected by those skilled in the art. As an example, for example, a molding pressure of 50 to 150 kg / cm 2 ,
The molding time may be 2 to 10 seconds, but is not limited thereto.
【００２５】圧縮成形にあたっては、通常の成形条件を
採用することができる。たとえば、成形温度は、使用す
る成形材料の種類、成形品の形状寸法および金型構造、
予熱操作の有無などに応じて適当に選びうる。成形時間
は、使用成形材料の種類およびその成形特性、成形品の
形状寸法、成形温度、予熱温度などを考え合わせて決定
される。成形圧力もまたこれら要因に応じて選びうる。In the compression molding, ordinary molding conditions can be adopted. For example, the molding temperature depends on the type of molding material used, the shape and dimensions of the molded product and the mold structure,
It can be appropriately selected depending on whether or not a preheating operation is performed. The molding time is determined in consideration of the type of the molding material used, its molding characteristics, the shape and dimensions of the molded product, the molding temperature, the preheating temperature, and the like. The molding pressure can also be chosen depending on these factors.
【００２６】メラミン樹脂の圧縮成形を例として、通常
の好ましい成形条件の例を示すならば、余熱温度６０〜
８０℃、成形温度１４０〜１８０℃、成形圧力１５０〜
３００ｋｇ／ｃｍ2、成形時間３０〜１００秒（１ｍｍ
厚につき）を挙げることができる。Taking the compression molding of a melamine resin as an example and showing typical preferable molding conditions, a preheating temperature of 60 to
80 ° C, molding temperature 140-180 ° C, molding pressure 150-
300 kg / cm 2 , molding time 30 to 100 seconds (1 mm
Per thickness).
【００２７】本発明によって、得られた色分けされたメ
ラミン系樹脂製成形体において、一つの色領域と隣り合
う色領域の境界に存在する双方の色とは異なった色合い
部分（色移行部分）の幅を色移行幅と呼ぶこととする。
図５は、色移行幅の概念を理解しやすいように色の異な
るＦおよびＧの二つの部分からなる色分け成形品を示し
た図である。ａが色移行部分の中心線で、ｂが色移行部
分で、ｃが色移行幅である。色移行幅ｃは、色境界の色
移行部分の中心線に垂直方向にＦとＧの所望の色が出て
いる部分間の距離を測定する。数値としては任意に選ん
だ複数個所の色移行幅ｃの平均値、例えば図５ではｃ1
〜ｃ5の平均値を使用する。本発明によって、従来公知
の成形体に比して該色移行幅の小さい成形体、換言すれ
ば明確な色分けのできた成形体を得ることができる。[0027] According to the present invention, color-coded resulting been menu
In a lamin-based resin molded product, the width of a color portion (color transition portion) different from both colors existing on the boundary between one color region and an adjacent color region is referred to as a color transition width.
FIG. 5 is a diagram showing a color-coded molded product composed of two portions of F and G having different colors so that the concept of the color transition width can be easily understood. a is the center line of the color transition portion, b is the color transition portion, and c is the color transition width. The color transition width c measures the distance between the portions where the desired colors of F and G appear in the direction perpendicular to the center line of the color transition portion of the color boundary. The numerical value is an average value of the color transition widths c at a plurality of positions arbitrarily selected, for example, c 1 in FIG.
Using the mean value of the to c 5. According to the present invention, it is possible to obtain a molded article having a smaller color transition width than a conventionally known molded article, in other words, a molded article in which clear color coding is possible.
【００２８】メラミン樹脂の成形において、本発明の実
施の条件を選ぶことによって、色移行幅を５ｍｍ以下、
好ましくは４ｍｍ以下、さらに好ましくは３ｍｍ以下と
することが可能である。この値は、従来公知の技術で
は、到底到達し得なかったレベルである。In the molding of the melamine resin, the color transition width can be reduced to 5 mm or less by selecting the conditions for carrying out the present invention.
It is preferably 4 mm or less, and more preferably 3 mm or less. This value is a level that could not be reached by the conventionally known technology.
【００２９】以下に、メラミン樹脂を例に本発明の具体
的実施態様を説明するが、本発明はこれら実施例に限定
されるものではない。Hereinafter, specific embodiments of the present invention will be described with reference to a melamine resin, but the present invention is not limited to these embodiments.
【００３０】[0030]
【実施例１】メラミン樹脂に、オレンジ系顔料を配合し
て、粉末状成形材料を調製した。これを用いて半径４６
ｍｍで、円周角１２０°の扇形（１／３円形）形状で厚
さ２３ｍｍの予備成形された成形材料を製造した。該予
備成形体の重量は６０ｇであった。Example 1 An orange pigment was blended with a melamine resin to prepare a powdery molding material. Using this, the radius 46
A preformed molding material having a thickness of 23 mm in a sector shape (１ ／ circle) having a circumferential angle of 120 ° in mm was produced. The weight of the preform was 60 g.
【００３１】同様にして、それぞれ着色剤を、ピンク系
顔料とするほかは、同じ条件で、他の二種の予備成形さ
れた成形材料を製造した。得られた三種の予備成形され
た成形材料を、直径１７０ｍｍの円形の皿を成形する金
型を装着した圧縮成形機中に、それぞれ空隙がないよう
円形に配置して、６０秒間予熱し、８０℃に昇温した
後、成形温度１７０℃、成形圧力２００ｋｇ／ｃｍ2及
び成形時間６０秒の条件で圧縮成形し、直径１７０ｍｍ
の円形の皿を得た。得られた円形皿の色境界における色
移行幅を測定したところ、４ｍｍであった。In the same manner, two other preformed molding materials were produced under the same conditions except that the coloring agent was a pink pigment. The obtained three types of preformed molding materials were placed in a circular shape with no voids in a compression molding machine equipped with a mold for molding a circular dish having a diameter of 170 mm, and preheated for 60 seconds. After the temperature was raised to 170 ° C., compression molding was performed under the conditions of a molding temperature of 170 ° C., a molding pressure of 200 kg / cm 2, and a molding time of 60 seconds.
A round dish was obtained. When the color transition width at the color boundary of the obtained circular dish was measured, it was 4 mm.
【００３２】[0032]
【比較例１】実施例１で使用した三種の粉末状メラミン
樹脂成形材料６０ｇずつを、直径１７０ｍｍの円形の皿
を成形する金型を装着した圧縮成形機中に、それぞれ隣
接位置に配置するほかは実施例と同様にして圧縮成形し
た。得られた皿の色移行幅は７ｍｍであった。Comparative Example 1 In addition to placing 60 g of each of the three powdery melamine resin molding materials used in Example 1 in a compression molding machine equipped with a mold for molding a circular dish having a diameter of 170 mm, each was placed adjacent to each other. Was compression molded in the same manner as in the examples. The color transition width of the resulting dish was 7 mm.
【００３３】[0033]
【実施例２】実施例１で使用した配合剤を配合したメラ
ミン樹脂成形材料を用いて、外径８１ｍｍ、内径５１ｍ
ｍ、厚さ２７ｍｍのドーナツ状円筒に予備成形した成形
材料Ｄを作成した。重量は１００ｇであった。別にＤと
は異なる色となるように配合された成形材料を用いて、
外径５１ｍｍ厚さ２７ｍｍの円柱状に予備成形した成形
材料Ｅを作成した。重量は６６ｇであった。成形材料Ｅ
を成形材料Ｄの中空部に挿入して圧縮成形用成形材料と
し、椀形容器を製造する金型中で、６０秒予熱して８０
℃に昇温した後、成形温度１７０℃、成形圧力２００ｋ
ｇ／ｃｍ2及び成形時間６０秒の条件で圧縮成形して、
上下に色分けした椀形容器を製造した。得られた容器の
色移行幅は４ｍｍであった。Example 2 Using a melamine resin molding material containing the compounding agent used in Example 1, an outer diameter of 81 mm and an inner diameter of 51 m
A molding material D was preformed into a donut-shaped cylinder having a thickness of 27 mm and a thickness of 27 mm. The weight was 100 g. Separately, using a molding material formulated to have a different color from D,
A molding material E was preformed into a cylindrical shape having an outer diameter of 51 mm and a thickness of 27 mm. The weight was 66 g. Molding material E
Is inserted into the hollow portion of the molding material D to obtain a molding material for compression molding.
℃, molding temperature 170 ℃, molding pressure 200k
g / cm 2 and a molding time of 60 seconds.
Bowl-shaped containers with upper and lower colors were manufactured. The color transition width of the obtained container was 4 mm.
【００３４】[0034]
【発明の効果】本発明により、メラミン系樹脂の成形に
おいて色分けが明確な成形方法を提供することが可能と
なり、明確に色分けされたメラミン系樹脂製成形品を提
供することができる。本発明により、境界が明確な色分
け成形品が製造できことから、成形品に鮮明な美観を与
えるとともに、目的に応じて種々の色領域を有する成形
品を製造することができるようになり、その用途が一段
と拡大することが期待される。According to the present invention, color-coded in the molding of the melamine resin becomes possible to provide a clear molding method, it is possible to provide a clearly color-coded melamine resin molded article. The present invention, since the possible boundaries produced clear color molded article, together provide a clear appearance to the molded article, it becomes possible to manufacture a molded article having a different color regions in accordance with the intended use, the It is expected that applications will expand further.
【００３５】[0035]
【図１】三個の扇形柱状に予備成形された成形材料が、
円形柱状に配置された状態を示す図である。FIG. 1 shows a molding material preformed into three fan-shaped columns,
It is a figure showing the state arranged in the shape of a circular pillar.
【図２】予め成形されたドーナツ状柱状成形材料Ｄと、
内部中空部分に挿入できる円柱形状に予め成形された成
形材料Ｅを示す図である。FIG. 2 shows a preformed donut-shaped columnar molding material D;
It is a figure which shows the molding material E preformed in the column shape which can be inserted in an internal hollow part.
【図３】成形材料Ｄの内部中空部分に、成形材料Ｅが挿
入された形に配置された図である。FIG. 3 is a view in which a molding material E is arranged in a hollow portion of the molding material D in a state inserted therein.
【図４】椀形形状に成形された色分け容器を示す図であ
る。FIG. 4 is a view showing a color-coded container formed into a bowl shape.
【図５】二つの色に色分けされた成形品を示す図であ
る。FIG. 5 is a diagram showing a molded product that is color-coded into two colors.
───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.7，ＤＢ名) B29C 43/02 - 43/20 B29C 43/32 - 43/34 B29C 70/00 - 70/88 B29B 11/12 - 11/16 ──────────────────────────────────────────────────続 き Continued on the front page (58) Fields surveyed (Int. Cl. 7 , DB name) B29C 43/02-43/20 B29C 43/32-43/34 B29C 70/00-70/88 B29B 11 / 12-11/16
Claims (8)
製成形品を製造する方法において、設計された当該色の
領域に応じて、予め成形された任意形状の成形材料を配
置して、圧縮成形することを特徴とする色分けメラミン
系樹脂製成形品を製造する方法。1. A method for producing a melamine-based resin molded product which is color-coded into two or more colors, comprising: arranging a molding material having an arbitrary shape which has been molded in advance according to a designed color region; Color-coded melamine characterized by compression molding
Method for producing a system resin molded article.
料を円形柱状に配置して、圧縮成形することを特徴とす
る請求項１記載の方法。2. A method according to claim 1, wherein a molding material preformed in two or more sectorial columns is arranged in a circular column shape and compression molded.
内部中空部分が任意形状の予め成形された成形材料の内
部中空部分に、該内部中空部分に挿入できる形状に予め
成形された任意形状の成形材料を挿入して、圧縮成形す
ることを特徴とする請求項１記載の方法。3. A circular or polygonal donut-shaped column,
An internal hollow portion is formed by inserting a molding material of an arbitrary shape preformed into a shape that can be inserted into the internal hollow portion into an internal hollow portion of a preformed molding material of an arbitrary shape, and compression molding. The method of claim 1.
を特徴とする請求項１から３のいずれかに記載の方法。4. The method according to claim 1, wherein the melamine resin is a melamine resin.
られたメラミン系樹脂成形品。 5. The method according to claim 1 or 2, wherein
Melamine resin molded products.
ラミン系樹脂成形品。 6. A method obtained by the method according to claim 3.
Ramin resin molded product.
器であることを特徴とする請求項５または６に記載の成
形品。7. The molded article according to claim 5 , wherein the melamine resin molded article is a melamine resin tableware.
ラミン製成形品であって、色と色の境界の色移行幅が５
ｍｍ以下であることを特徴とするメラミン製食器。8. A molded article made of melamine which is color-coded into two or more colors by molding, wherein a color transition width at a boundary between colors is 5 or more.
mm or less, characterized by being not more than mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4713599A JP3031905B1 (en) | 1999-02-24 | 1999-02-24 | Manufacturing method of color-coded molded products made of melamine resin and color-coded molded products |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4713599A JP3031905B1 (en) | 1999-02-24 | 1999-02-24 | Manufacturing method of color-coded molded products made of melamine resin and color-coded molded products |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP3031905B1 true JP3031905B1 (en) | 2000-04-10 |
| JP2000238059A JP2000238059A (en) | 2000-09-05 |
Family
ID=12766690
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4713599A Expired - Fee Related JP3031905B1 (en) | 1999-02-24 | 1999-02-24 | Manufacturing method of color-coded molded products made of melamine resin and color-coded molded products |
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| Country | Link |
|---|---|
| JP (1) | JP3031905B1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110281450A (en) * | 2019-06-21 | 2019-09-27 | 鸿泰佛吉亚复合材料(武汉)有限公司 | A kind of mold flow analysis method of compression molding |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015085514A (en) * | 2013-10-28 | 2015-05-07 | 信濃化学工業株式会社 | Tableware production method and tableware |
-
1999
- 1999-02-24 JP JP4713599A patent/JP3031905B1/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110281450A (en) * | 2019-06-21 | 2019-09-27 | 鸿泰佛吉亚复合材料(武汉)有限公司 | A kind of mold flow analysis method of compression molding |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2000238059A (en) | 2000-09-05 |
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