JP2011213944A - Ink, printing method, and printed product - Google Patents
Ink, printing method, and printed product Download PDFInfo
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Abstract
Description
本発明は、インキ、印刷方法及び印刷物に関する。 The present invention relates to an ink, a printing method, and a printed matter.
印刷方式には大別してオフセット印刷（平板印刷）、グラビア印刷（凹版印刷）、フレキソ印刷（凸版印刷）及びスクリーン印刷（孔版印刷）がある。例えばスクリーン印刷法は、スクリーンに形成された孔を通してインキを被印刷体に押し出し、印刷する方法であり、紙、布、プラスチックス、ガラス及び金属等、さまざまな材料の被印刷材に印刷することができ、また、被印刷体が平面ばかりでなく、曲面であっても印刷することができることから、広く用いられるようになっている。 Printing methods are roughly classified into offset printing (flat printing), gravure printing (intaglio printing), flexographic printing (letter printing), and screen printing (stencil printing). For example, the screen printing method is a method in which ink is extruded onto a printing medium through holes formed in the screen, and printing is performed on printing materials of various materials such as paper, cloth, plastics, glass, and metal. In addition, since printing is possible not only on a flat surface but also on a curved surface, it is widely used.
スクリーン印刷等の各種印刷法に用いられる印刷インキは、顔料と、樹脂と、補助剤とを含むものであり、それぞれ印刷の用途及び被印刷体に応じて適切なものが選択され印刷インキ原料とされる。このうち、顔料は、色相、彩度、着色力、隠蔽力等、種々の要求特性を満たすために、有機顔料が主流となっている。 Printing inks used in various printing methods such as screen printing include pigments, resins, and auxiliary agents, and appropriate printing ink raw materials are selected according to the printing application and the substrate to be printed. Is done. Among these, organic pigments are mainly used as pigments in order to satisfy various required characteristics such as hue, saturation, coloring power, and hiding power.
近年では、輝度、色調等が変化する多色性の顔料を含有する印刷インキとして、キラル相を有する液晶構造を有する、配向された三次元架橋物質からなる顔料を含有する印刷インキがある（特許文献１）。また、天然素材由来の有機顔料を含む印刷インキ、特にインクジェットプリンタ用のインキとして、羽毛微細粉末を顔料に用いた印刷インキがある（特許文献２）。 In recent years, as a printing ink containing a polychromatic pigment whose brightness, color tone and the like change, there is a printing ink containing a pigment made of an oriented three-dimensional cross-linking substance having a liquid crystal structure having a chiral phase (patent) Reference 1). Moreover, as a printing ink containing an organic pigment derived from a natural material, particularly an ink for an ink jet printer, there is a printing ink using feather fine powder as a pigment (Patent Document 2).
最近は、従来とは異なる特徴的な輝度や色調等を有する、意匠性の高い印刷物についてのニーズが高まりつつあり、これに応ずることのできる印刷方法や印刷インキに対する要求が高まっている。 Recently, there is an increasing need for highly-designed printed materials having characteristic brightness and color tone that are different from conventional ones, and there is an increasing demand for printing methods and printing inks that can meet these needs.
また、地球環境の保護の観点から、印刷インキについて、植物油インキのような環境対応型インキへの注目が高まっており、地球環境に優しい印刷インキに対する要求が高まっている。 From the viewpoint of protecting the global environment, as printing inks, attention has been paid to environmentally friendly inks such as vegetable oil inks, and there is an increasing demand for printing inks that are friendly to the global environment.
そこで本発明は、特徴的な輝度や色調等を有する印刷物を得ることができ、また、地球環境にも優しいインキ及びそのインキを用いた印刷方法、その印刷方法を用いた印刷物を提供することにある。 Therefore, the present invention can provide a printed matter having a characteristic brightness, color tone, etc., and also provide an ink that is friendly to the global environment, a printing method using the ink, and a printed matter using the printing method. is there.
本発明のインキは、透明なインキと、顔料として化粧料又は化粧料原料、食料又は食料加工品、ガラス及びスラグから選ばれる少なくとも一種の粉末とを含有することを特徴とする。
本発明のインキは、インキに対する前記粉末の配合割合が、透明なインキ１ｋｇに対して粉末０．２ｋｇ〜０．５ｋｇの範囲とすることができる。また、紫外線硬化型インキであることが好ましい。更に、マット剤を含むことができる。また、顔料は、特に加工工場から排出された廃棄物を用いることが好ましい。
The ink of the present invention is characterized by containing a transparent ink and at least one powder selected from cosmetics or cosmetic raw materials, foods or processed foods, glass and slag as pigments.
In the ink of the present invention, the blending ratio of the powder with respect to the ink can be in the range of 0.2 kg to 0.5 kg of the powder with respect to 1 kg of the transparent ink. Moreover, it is preferable that it is an ultraviolet curable ink. Furthermore, a matting agent can be included. Moreover, it is preferable to use the waste discharged | emitted from the processing factory especially for a pigment.
また、本発明の印刷方法は、上記インキ用いて、印刷をすることを特徴とする。 The printing method of the present invention is characterized by printing using the above ink.
更に、本発明の印刷物は、上記インキが、印刷された被印刷体に形成されていることを特徴とする。 Furthermore, the printed matter of the present invention is characterized in that the ink is formed on a printed material to be printed.
本発明によれば、顔料として化粧料又は化粧料原料、食料又は食料加工品、ガラス及びスラグから選ばれる少なくとも一種粉末を含むことから、これらの化粧料又は化粧料原料、食料又は食料加工品、ガラス及びスラグから選ばれる少なくとも一種に由来した特徴的な輝度や色調をする印刷物を得ることができる。また、化粧料又は化粧料原料、食料又は食料加工品、ガラス及びスラグの加工工程で廃棄される原料を顔料として用いることができるので、廃棄物量を減少させることができ、地球環境に優しい印刷物を得ることができる。 According to the present invention, since at least one powder selected from cosmetics or cosmetic raw materials, foods or processed foods, glass and slag is included as a pigment, these cosmetics or cosmetic raw materials, foods or processed foods, A printed matter having a characteristic brightness and color tone derived from at least one selected from glass and slag can be obtained. In addition, since raw materials discarded in cosmetics or cosmetic raw materials, food or processed food products, glass and slag processing steps can be used as pigments, the amount of waste can be reduced, and printed materials that are friendly to the global environment. Obtainable.
以下、本発明のインキ、印刷方法及び印刷物の実施形態を、より具体的に説明する。
発明者らは、特徴的な輝度や色調等を有する、意匠性の高い印刷物についての研究を進めた結果、化粧料又は化粧料原料、食料又は食料加工品、ガラス及びスラグから選ばれる少なくとも一種の粉末が、印刷インキの顔料として好適であることを見出し、本発明のインキ、印刷方法及び印刷物を開発するに至った。
Hereinafter, embodiments of the ink, the printing method, and the printed matter of the present invention will be described more specifically.
As a result of advancing research on highly-designed printed materials having characteristic brightness, color tone, etc., the inventors have made at least one selected from cosmetics or cosmetic ingredients, food or processed food products, glass and slag. It has been found that the powder is suitable as a pigment for printing ink, and the ink, printing method and printed matter of the present invention have been developed.
化粧料は、例えばファンデーション、チーク、アイカラー等、種々のものがあり、それぞれの目的、用途に応じた色相、色調、彩度を具備している。そのため、このような有色の化粧料又はその化粧料の原料を印刷インキの顔料として用いて、印刷をすることにより、この化粧料由来の特徴的な輝度や色調等を有する意匠性の高い印刷物が得られるのである。 There are various cosmetics such as foundations, cheeks, eye colors, etc., and they have hues, hues, and saturations according to their purposes and applications. Therefore, by using such a colored cosmetic or the raw material of the cosmetic as a printing ink pigment and printing, a printed material with high design properties having characteristic brightness, color tone and the like derived from the cosmetic is obtained. It is obtained.
また、化粧料の製造過程において廃棄される化粧料又は化粧料原料を顔料として再利用することにより、化粧料工場から廃棄される化粧料又は化粧料原料の量を減少できるという、地球環境に優しい印刷物とすることができる。 In addition, the amount of cosmetics or cosmetic raw materials discarded from cosmetic factories can be reduced by reusing cosmetics or cosmetic raw materials discarded in the cosmetic manufacturing process as pigments. Can be printed.
また化粧料又は化粧料原料以外にも、食料又は食料加工品、ガラス及びスラグを用いることによっても、これらの原料由来の特徴的な輝度や色調等を有する意匠性の高い印刷物が得られ、しかも、それらの加工工場から廃棄される、これらの原料の量を減少できるという、地球環境に優しい印刷物とすることができるのである。 In addition to cosmetics or cosmetic ingredients, by using food or processed foods, glass and slag, printed materials with high design properties having characteristic brightness and color tone derived from these ingredients can be obtained. It is possible to make a printed material that is friendly to the global environment, and can reduce the amount of these raw materials discarded from these processing plants.
本発明の印刷方法、印刷物及び印刷インキに適用される化粧料又は化粧料原料以外にも、食料又は食料加工品、ガラス及びスラグから選ばれる少なくとも一種の原料は、有機、無機またはこれらを組み合わせた顔料を具備している。このような化粧料又は化粧料原料の顔料としては、以下のものを例示することができる。 In addition to the cosmetic or cosmetic raw material applied to the printing method, printed matter and printing ink of the present invention, at least one raw material selected from food or processed food, glass and slag is organic, inorganic or a combination thereof It has a pigment. Examples of such cosmetics or pigments for cosmetic raw materials include the following.
顔料：タルク、マイカ、硫酸バリウム、二酸化チタン、酸化鉄（赤）、酸化鉄（黄）、酸化鉄（黒）、ＰＭＭＡ粉末、シリコーン樹脂、ナイロン粉末。 Pigments: Talc, mica, barium sulfate, titanium dioxide, iron oxide (red), iron oxide (yellow), iron oxide (black), PMMA powder, silicone resin, nylon powder.
また、化粧料又は化粧料原料には、上記顔料の他、油分としてナイロン粉末、流動パラフィン、ジメチルポリシロキサン、トリイソオクタン酸グリセリン、オクチルメトキシシンナメート等を含み、更に、防腐剤や酸化防止剤、香料を含むことができる。
上記の化粧料又は化粧料原料は、化粧料工場から廃棄物として入手することができる。
In addition to the above pigment, cosmetics or cosmetic raw materials include nylon powder, liquid paraffin, dimethylpolysiloxane, glycerin triisooctanoate, octylmethoxycinnamate, and the like as oils. Perfume can be included.
The above cosmetics or cosmetic raw materials can be obtained as waste from a cosmetic factory.
顔料が食料又は食料加工品、すなわち食品由来のものである場合には、例えば、ウコン、ムラサキイモ、小麦粉、キナコ、バブリカ、ローレルの粉末の１種又は２種以上を用いることができる。これらは食料加工工場から廃棄物として入手することができる。 When the pigment is food or processed food, that is, derived from food, for example, one or more powders of turmeric, purple potato, flour, kinaco, bubbler and laurel can be used. These are available as waste from food processing plants.
顔料にはガラス粉末を用いることもできる。ガラス粉末としては、例えばガラス加工工場、ガラス瓶を容器に用いる化粧料工場その他の瓶詰め工場から廃棄物として入手し、所定の粒径、例えば５０μｍ以下に粉砕した粉末を用いることができる。原料ガラスは、色の付いたガラスでもよいし、無色なガラスでもよい。 Glass powder can also be used for the pigment. As the glass powder, for example, a powder obtained as waste from a glass processing factory, a cosmetic factory or other bottling factory using a glass bottle as a container, and pulverized to a predetermined particle size, for example, 50 μm or less can be used. The raw glass may be colored glass or colorless glass.
顔料にはスラグを用いることができる。スラグは、高炉メーカ、電炉メーカから排出されるスラグを廃棄物として入手することができる。なお、スラグは酸化物を主成分とし、種々の金属成分を含んでいるので、余分な金属成分については必要に応じて除去することが好ましい。 Slag can be used for the pigment. As slag, slag discharged from blast furnace manufacturers and electric furnace manufacturers can be obtained as waste. In addition, since slag has an oxide as a main component and contains various metal components, it is preferable to remove excess metal components as necessary.
化粧料又は化粧料原料は、粒径が１μｍ〜３００μｍの範囲の粉末であることが好ましい。粉末の粒径が１μｍ程度に満たないと色調（粉末自体の色）が淡くなり、再現性に欠ける。その場合は、インキとの配合割合を増やせば色調問題はクリアできるが、コストの観点から好ましくなく、一方３００μｍ程度を超えると、乾燥不良などの印刷適正（紙への密着）が悪くなるが、デザイン上で印刷物の荒々しさを出すのであれば粒径は大きいほうがよい。その場合はスクリーン版のメッシュを荒くしたり、照射時間を長くするまたはインキとの配合割合を少なくすることにより問題は解決される。スクリーン印刷は版のメッシュを変えることにより、様々なり粒径の粉末を印刷することができる。 The cosmetic or cosmetic raw material is preferably a powder having a particle size in the range of 1 μm to 300 μm. If the particle size of the powder is less than about 1 μm, the color tone (color of the powder itself) becomes light and lacks reproducibility. In that case, the color tone problem can be cleared if the blending ratio with the ink is increased, but it is not preferable from the viewpoint of cost. On the other hand, if it exceeds about 300 μm, the printing suitability (adhesion to paper) such as poor drying is deteriorated, The larger the particle size, the better if the prints are rough on the design. In that case, the problem can be solved by roughening the mesh of the screen plate, increasing the irradiation time, or reducing the blending ratio with the ink. In screen printing, powders with various particle sizes can be printed by changing the mesh of the plate.
食料又は食料加工品、ガラス及びスラグ由来の粉末の粒径も、上記化粧料又は化粧料原料と同様の理由で、粒径が１μｍ〜３００μｍの範囲の粉末であることが好ましい。 The particle size of the powder derived from food or food processed products, glass and slag is preferably a powder having a particle size in the range of 1 to 300 μm for the same reason as the cosmetic or cosmetic raw material.
本発明における有色インキの原料は、透明なインキに混合される。この透明なインキに対する、当該有色インキ原料の粉末の配合割合は、インキ１ｋｇに対して粉末０．２ｋｇ〜０．５ｋｇの範囲とすることが好ましい。配合割合が、インキ１ｋｇに対して粉末０．２ｋｇに満たないと、粒径が１μｍに満たない場合と同じく、再現性に欠ける。一方、インキ１ｋｇに対して粉末０．５ｋｇを超えると、インキと粉末とが混ざらなく、印刷用のインキにならない。 The raw material of the colored ink in the present invention is mixed with a transparent ink. The blending ratio of the colored ink raw material powder to the transparent ink is preferably in the range of 0.2 kg to 0.5 kg of powder with respect to 1 kg of ink. If the blending ratio is less than 0.2 kg of powder with respect to 1 kg of ink, reproducibility is lacking as in the case where the particle size is less than 1 μm. On the other hand, when the powder exceeds 0.5 kg with respect to 1 kg of ink, the ink and the powder are not mixed and the ink for printing is not obtained.
本発明における透明なインキは、半透明なインキを含むものであり、いわゆる着色用の顔料を含まない印刷インキ（クリアインキ）のことを指す。 The transparent ink in the present invention includes a translucent ink and refers to a printing ink (clear ink) that does not include a so-called coloring pigment.
また、本発明のインキは、上記顔料に加えて、シリカ粉末等よりなるマット剤を含有させることができる。 In addition to the pigment, the ink of the present invention can contain a matting agent made of silica powder or the like.
印刷インキには、インキの乾燥方法により大別すると酸化重合型インキ、蒸発乾燥型インキ、浸透乾燥型インキ、赤外線乾燥インキ及び紫外線乾燥インキ（紫外線硬化型インキ）がある。本発明の印刷方法、印刷物及び印刷インキには、これらのインキの種別を問わず適用することができるが、なかでも紫外線硬化型インキを適用し、これに有色インキ原料を混合したものを用いることが好ましい。これは、紫外線硬化型インキが本発明の有色顔料の粉末を包み込み、瞬時に硬化（乾燥）させるという理由からである。また、紫外線硬化型インキは、揮発性有機化合物（ＶＯＣ）が少ないことから、この点でも環境対応型の印刷インキとすることができるので有利である。 Printing inks are roughly classified into oxidation polymerization type inks, evaporation drying type inks, penetration drying type inks, infrared drying inks and ultraviolet drying inks (ultraviolet curable inks). The printing method, printed matter, and printing ink of the present invention can be applied regardless of the type of these inks. Among them, an ultraviolet curable ink is applied, and a mixture of colored ink raw materials is used. Is preferred. This is because the ultraviolet curable ink wraps the colored pigment powder of the present invention and instantly cures (drys). Further, since the ultraviolet curable ink has a small amount of volatile organic compounds (VOC), this point is advantageous because it can be used as an environment-friendly printing ink.
本発明で用いる紫外線硬化型インキとしては例えば、感光性樹脂、感光性モノマー、光重合開始剤、シリカを含むインキを用いることができる。 As the ultraviolet curable ink used in the present invention, for example, an ink containing a photosensitive resin, a photosensitive monomer, a photopolymerization initiator, and silica can be used.
より具体的には、十条ケミカル株式会社の商品名レイキュアーＧＡ ４１００−２シリーズ、レイキュアーＶＸ ４７００−２シリーズ、レイキュアーＣＰＯ ６３００−２シリーズ（以上、十条ケミカル株式会社）、ＦＤＳＳ９００ キンメジュウム、ＦＤＳＳ７１０Ｓメジュウム１Ｋ（以上、東洋インキ製造株式会社）などを用いることができる。そのなかでも、レイキュアーＧＡ ４１００−２シリーズ（十条ケミカル株式会社）は、硬化性及び接着性、インキ被膜は強光沢で透明性、機上安定性、印刷再現性、被膜硬度が強く耐薬品性、耐摩擦性にそれぞれ優れている。また、低臭性で被膜刺激性が低い。 More specifically, trade names of Jujo Chemical Co., Ltd., Reicure GA 4100-2 series, Reicure VX 4700-2 series, Reicure CPO 6300-2 series (above, Jujo Chemical Co., Ltd.), FDSS900 Kinmedium, FDSS710S Medium 1K (Toyo Ink Manufacturing Co., Ltd.) can be used. Among them, Reicure GA 4100-2 series (Jujo Chemical Co., Ltd.) has excellent curability and adhesion, ink film has high gloss and transparency, on-machine stability, print reproducibility, film hardness and chemical resistance. Each has excellent friction resistance. In addition, it has low odor and low film irritation.
紫外線硬化型インキと有色インキ原料との混合は、ポニーミキサーを使用し、印刷直前に混合させる。これは、混合後使用せず保管しておくと、インキと粉末とが分離するおそれがあるためである。混合時間は、温度や湿度により一定ではない。冬季の場合は寒さによりインキが硬くなるので、保温機で（５０℃）で３０分ほど暖めてから混合させる。 The mixing of the ultraviolet curable ink and the colored ink raw material is performed immediately before printing using a pony mixer. This is because the ink and the powder may be separated if stored without being used after mixing. The mixing time is not constant depending on temperature and humidity. In the winter season, the ink becomes hard due to the cold, so it is heated for 30 minutes with a warmer (50 ° C.) and then mixed.
透明なインキと、有色インキ原料とを混合した着色インキを用いて、被印刷体に対して印刷をして印刷物が得られる。一般に、印刷方法にはオフセット印刷（平板印刷）、グラビア印刷（凹版印刷）、フレキソ印刷（凸版印刷）及びスクリーン印刷（孔版印刷）に大別できる。本発明の印刷方法では、印刷方法は特に限定されないが、これらのうち、スクリーン印刷を用いることが好ましい。これは、スクリーン印刷は、印刷インキの選択の幅が広く、本発明のような化粧料又は化粧料原料、食料又は食料加工品、着色ガラス及びスラグから選ばれる少なくとも一種の原料の顔料を含むインキであっても、印刷時に問題を生じるおそれが少ないからである。また、印刷機械の特性や作業性を考慮しても、本発明ではスクリーン印刷によって印刷を行うことが好ましい。 Using a colored ink obtained by mixing a transparent ink and a colored ink raw material, printing is performed on a substrate to be printed. In general, printing methods can be broadly classified into offset printing (lithographic printing), gravure printing (intaglio printing), flexographic printing (letter printing), and screen printing (stencil printing). In the printing method of the present invention, the printing method is not particularly limited, but among these, it is preferable to use screen printing. This is because screen printing has a wide range of selection of printing inks, and is an ink containing a pigment of at least one raw material selected from cosmetics or cosmetic raw materials, food or food processed products, colored glass and slag as in the present invention. This is because there is little possibility of causing problems during printing. In consideration of the characteristics and workability of the printing machine, it is preferable to perform printing by screen printing in the present invention.
スクリーン印刷を行う場合の印刷条件は、本発明の有色インキ原料を含まない紫外線硬化型インキの場合の条件と比べると、インキの配合割合が多かったり、粒径が大きいと乾燥不良（十分に硬化していない）により、耐摩擦性が弱くなる。デザイン上、ロゴ等で一部隆起した印刷物にする場合は、スクリーン版のメッシュを荒くしたり、膜圧をあげれば可能となる。また、スキージ圧やスキージ角度の調整により多種多様に印刷が可能となる。 The printing conditions for screen printing are poorly dried (sufficiently hardened when the ink content is large or the particle size is large, compared with the conditions for the UV curable ink that does not contain the colored ink raw material of the present invention. The friction resistance is weakened. In the case of a printed matter partially raised by a logo or the like, it can be achieved by roughening the mesh of the screen plate or increasing the film pressure. Also, a wide variety of printing is possible by adjusting the squeegee pressure and squeegee angle.
スクリーン印刷を行った場合の印刷後の乾燥は、紫外線（ＵＶ）照射によって行う。これは通常の紫外線硬化型インキを用いた印刷方法と同じであり、インキの成分として、紫外線に反応し硬化する光重合開始剤が入っている。インキとの配合割合が多かったり、（インキ１ｋｇに対して粉末０．５ｋｇ以上）、粒径が大きいと、光重合開始剤に紫外線が届かず乾燥不良（十分に硬化していない）により、耐摩擦が弱くなる。したがって、照射時間を長めにする必要があり、印刷中は定期的に印刷物の乾燥状態を確認する必要がある点に留意することが好ましい。 When screen printing is performed, drying after printing is performed by ultraviolet (UV) irradiation. This is the same as the printing method using a normal ultraviolet curable ink, and a photopolymerization initiator that reacts with ultraviolet rays and cures as an ink component. If the blending ratio with the ink is large (0.5 kg or more of powder with respect to 1 kg of ink) and the particle size is large, ultraviolet rays do not reach the photopolymerization initiator, resulting in poor drying (not sufficiently cured). Friction becomes weaker. Therefore, it is preferable to note that it is necessary to lengthen the irradiation time, and it is necessary to periodically check the dry state of the printed matter during printing.
以下、本発明の印刷方法、印刷物及び印刷インキの実施例を説明する。
顔料として、以下の粉末を用意した。
（１） チーク：粒径５μｍ〜２０μｍ
（２） ファンデーション：粒径５μｍ〜２０μｍ
（３） アイカラー：粒径５μｍ〜２０μｍ
（４） 小麦粉：粒径５μｍ〜４０μｍ
（５） キナコ：平均粒径２７μｍ
（６） ローレル：粒径１２５μｍ〜３００μｍ
（７） パブリカ：粒径１５０μｍ〜３５５μｍ
（８） ウコン（ターメリック）：粒径７５μｍ〜１８０μｍ
（９） ムラサキイモ：粒径３００μｍ
（１０） 竹炭：粒径５０μｍ
（１１） スラグ：平均粒径３μｍ
Examples of the printing method, printed matter and printing ink of the present invention will be described below.
The following powders were prepared as pigments.
(1) Teak: particle size 5 μm to 20 μm
(2) Foundation: particle size of 5 μm to 20 μm
(3) Eye color: particle size 5 μm to 20 μm
(4) Flour: particle size 5 μm to 40 μm
(5) Kinako: Average particle size 27μm
(6) Laurel: particle size 125 μm to 300 μm
(7) Publica: particle size 150 μm to 355 μm
(8) Turmeric (turmeric): particle size 75 μm to 180 μm
(9) Purple potato: particle size 300μm
(10) Bamboo charcoal: particle size 50μm
(11) Slag: Average particle size 3μm
これらの顔料をそれぞれ、紫外線硬化型インキである十条ケミカル株式会社、商品名レイキュアーＧＡ ４１００−２）と混合した。混合割合は、インキ１ｋｇに対して各顔料０．２〜０．５ｋｇであった。 Each of these pigments was mixed with Jujo Chemical Co., Ltd., trade name Reicure GA 4100-2) which is an ultraviolet curable ink. The mixing ratio was 0.2 to 0.5 kg of each pigment with respect to 1 kg of ink.
混合して得られた各有色インキを用いて、スクリーン印刷機のストップシリンダー式により、Ｎ３００Ｂメッシュのスクリーン版の印刷用紙に印刷した後、紫外線を照射して印刷物を得た。照射条件はメタルハライドランプ（１２０ Ｗ／ｃｍ）を４灯用いて、照射距離１４ｃｍとした。また、被印刷体のコンベアー速度は２０００ｍ／ｍｉｎとした。 Each colored ink obtained by mixing was printed on an N300B mesh screen printing paper by a stop cylinder type of a screen printing machine, and then irradiated with ultraviolet rays to obtain a printed matter. Irradiation conditions were an irradiation distance of 14 cm using four metal halide lamps (120 W / cm). The conveyor speed of the printing medium was 2000 m / min.
かくして得られた印刷物は、それぞれの原料の特徴的な輝度や色調等を有する、意匠性の高い印刷物であった。 The printed matter thus obtained was a highly designable printed matter having the characteristic luminance and color tone of each raw material.
図１〜図６に、これらの印刷物に形成されたインキ薄膜の状態を示す写真を示す。図１はチーク粉末を含む有色インキを背景色として、アイカラー粉末を含む有色インキにより文字を表わした例である。図２はファンデーション粉末を含む有色インキにより文字を表わした例である。図３は、キナコ粉末を含む有色インキにより図形を表わした例である。図４はムラサキイモ粉末を含む有色インキを背景色として、アイカラー粉末を含む有色インキにより文字を表わした例である。図５はウコン粉末を含む有色インキを背景色として、アイカラー粉末を含む有色インキにより文字を表わした例である。図６は木炭粉末を含む有色インキを背景色として、白色インキ（顔料：酸化チタン）により文字を表わした例である。図１〜図６から、本発明に従い、実際に印刷物が作製されていることが明らかとなった。 In FIGS. 1-6, the photograph which shows the state of the ink thin film formed in these printed matter is shown. FIG. 1 is an example in which characters are represented by colored ink containing eye color powder with colored ink containing teak powder as a background color. FIG. 2 is an example in which characters are represented by colored ink containing foundation powder. FIG. 3 is an example in which a figure is represented by colored ink containing quinako powder. FIG. 4 is an example in which characters are represented by colored ink containing eye color powder with colored ink containing purple potato powder as a background color. FIG. 5 shows an example in which characters are represented by colored ink containing eye color powder with colored ink containing turmeric powder as a background color. FIG. 6 is an example in which characters are represented by white ink (pigment: titanium oxide) using a colored ink containing charcoal powder as a background color. From FIG. 1 to FIG. 6, it became clear that a printed matter was actually produced according to the present invention.
（耐久性）
印刷物の耐久性を調べるために、ファンデーションを含む有色インキ、チークを含む有色インキ、ローレルを含む有色インキ、ウコンを含む有色インキ及びムラサキイモを含む有色インキを用いた印刷物について、印刷後の耐久性試験を行った。これらの有色インキの混合割合はインキ１ｋｇに対して各顔料０．２〜０．５ｋｇであり、マット剤は含まれていない。
(durability)
In order to investigate the durability of printed materials, the durability of printed materials using colored inks including foundation, colored inks including teak, colored inks including laurel, colored inks including turmeric, and colored inks including purple potatoes. A test was conducted. The mixing ratio of these colored inks is 0.2 to 0.5 kg of each pigment with respect to 1 kg of ink, and no matting agent is contained.
この耐久性試験は、耐光性、耐硫化水素性、耐摩擦性及び耐ブロッキング性について調べた。耐光性は、紫外線カーボンアーク燈に２０時間曝して変色の有無を調べた。耐硫化水素性は、Ｈ２Ｓ飽和水溶液に５分間浸漬させて変色の有無を調べた。耐摩擦性は、実験試験機（東洋炉紙ＮＯ２）を用いて、４０ポンドの荷重で４０回の条件で行った。耐ブロッキング性は、ブロッキングテスト法により印刷物表面同士を対象として行った。その結果、各有色インキは、耐硫化水素性、耐摩擦性及び耐ブロッキング性に優れていて、変色がなくや摩擦等に耐えうるものであった。耐光性については、ファンデーションを含む有色インクは変色がなく、またチークを含む有色インキは若干の変色が見られ、ローレルを含む有色インキ、ウコンを含む有色インキ及びムラサキイモを含む有色インキは変色が見られた。なお、これらの変色が見られた有色インキは、紫外線に対する長期間の耐久性が求められない印刷物には十分に使用可能であり、また、マット剤を加えることにより耐光性が改善され得るものである。 In this durability test, light resistance, hydrogen sulfide resistance, friction resistance and blocking resistance were examined. The light resistance was examined for the presence of discoloration by exposure to an ultraviolet carbon arc lamp for 20 hours. The resistance to hydrogen sulfide was examined for the presence or absence of discoloration by immersing in a saturated aqueous solution of H 2 S for 5 minutes. The friction resistance was measured under the condition of 40 times with a load of 40 pounds using an experimental test machine (Toyo Furnace NO2). The blocking resistance was performed on the surfaces of the printed materials by the blocking test method. As a result, each colored ink was excellent in hydrogen sulfide resistance, friction resistance and blocking resistance, and could withstand friction and the like without discoloration. Regarding light resistance, colored inks containing foundations have no discoloration, colored inks containing teak are slightly discolored, colored inks containing laurel, colored inks containing turmeric, and colored inks containing purple potatoes are discolored. It was seen. In addition, the colored ink in which these discolorations are seen can be sufficiently used for printed matter that does not require long-term durability against ultraviolet rays, and light resistance can be improved by adding a matting agent. is there.
以上、本発明の実施形態を説明したが、本発明の印刷方法、印刷物及び印刷インキは、上述した実施形態により限定されるものではなく、本発明の趣旨を満たす範囲で幾多の変形が可能であることは言うまでもない。 As mentioned above, although embodiment of this invention was described, the printing method of this invention, printed matter, and printing ink are not limited by embodiment mentioned above, Many deformation | transformation are possible in the range with which the meaning of this invention is satisfy | filled. Needless to say.
Claims (8)
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| KR20190031275A (en) * | 2017-05-12 | 2019-03-25 | 가부시키 가이샤 세이코 아도반스 | Insulating Shading Printing Ink and Insulating Member |
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| CN110036078A (en) * | 2017-05-12 | 2019-07-19 | 日本精工油墨有限公司 | Insulating properties shading printing ink and insulating component |
| CN110036078B (en) * | 2017-05-12 | 2020-05-26 | 日本精工油墨有限公司 | Insulating light-shielding printing ink and insulating member |
| KR102202479B1 (en) | 2017-05-12 | 2021-01-12 | 가부시키 가이샤 세이코 아도반스 | Insulative shading printing ink and insulating member |
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