JP7100337B2 - Water-based varnish printing equipment - Google Patents
Water-based varnish printing equipment Download PDFInfo
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- JP7100337B2 JP7100337B2 JP2018155622A JP2018155622A JP7100337B2 JP 7100337 B2 JP7100337 B2 JP 7100337B2 JP 2018155622 A JP2018155622 A JP 2018155622A JP 2018155622 A JP2018155622 A JP 2018155622A JP 7100337 B2 JP7100337 B2 JP 7100337B2
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本発明はＵＶインクで印刷した印刷物の表面に水性ニスのコーティング処理を施す水性ニス印刷装置に関する。 The present invention relates to a water-based varnish printing apparatus that coats the surface of a printed matter printed with UV ink with a water-based varnish.
一般にＵＶインクを用いた印刷物を乾燥した後、水性ニス印刷装置を用いて印刷物の表面に光沢・耐摩耗性を付与する処理がある。
水性ニス印刷装置は、水性ニス（水性のワニス）を印刷物の表面に塗布する印刷手段と、塗布した水性ニスを乾燥する乾燥手段を備えている。従来、この乾燥手段は、熱源となる赤外線（ＩＲ）で生じる熱風を吹き付けて水分を蒸発させて、エマルジョン、樹脂を固化して乾燥させている（特許文献１，２は水性ニスの乾燥にＩＲを用いている）。
Generally, after drying a printed matter using UV ink, there is a treatment of imparting gloss and abrasion resistance to the surface of the printed matter using a water-based varnish printing apparatus.
The water-based varnish printing apparatus includes a printing means for applying a water-based varnish (water-based varnish) to the surface of a printed matter, and a drying means for drying the applied water-based varnish. Conventionally, in this drying means, hot air generated by infrared rays (IR) as a heat source is blown to evaporate water to solidify an emulsion or a resin and dry it (Patent Documents 1 and 2 are IR for drying an aqueous varnish). Is used).
しかしながら、赤外線を用いた乾燥手段は、短時間で所定温度の熱風を吹き付けて安定した乾燥が行えるものの熱源のコストがかかり装置も大型化してしまう。また、水性ニスの乾燥処理の際、熱風を所定湿度に維持しなければ、紙の印刷物の場合には収縮やワレ、フィルム・薄紙の印刷物の場合にはカールなどの不具合が生じてしまうという問題があった。
さらに、前段のＵＶインク印刷手段のＵＶランプのＵＶ照射の際に生じる発熱と、ＵＶインクの乾燥の際に生じる有機化合物からなる排熱ガスは、単に印刷装置外へ放出しており、排熱を有効活用できない状況であった。
However, although the drying means using infrared rays can perform stable drying by blowing hot air at a predetermined temperature in a short time, the cost of the heat source is high and the size of the apparatus is increased. In addition, if the hot air is not maintained at a predetermined humidity during the drying process of the water-based varnish, problems such as shrinkage and cracking in the case of printed matter on paper and curling in the case of printed matter on film / thin paper will occur. was there.
Further, the heat generated when the UV lamp of the UV ink printing means in the previous stage is irradiated with UV light and the exhaust heat gas made of an organic compound generated when the UV ink is dried are simply discharged to the outside of the printing apparatus, and the exhaust heat is exhausted. Was in a situation where it could not be used effectively.
本発明が解決しようとする課題は、上記従来技術の問題点に鑑み、水性ニス乾燥の熱源コストの低減化を図る水性ニス印刷装置を提供することにある。 An object to be solved by the present invention is to provide a water-based varnish printing apparatus for reducing the heat source cost of water-based varnish drying in view of the above-mentioned problems of the prior art.
本発明は、上記課題を解決するための第１の手段として、水性ニス印刷手段と水性ニス乾燥手段を備えた水性ニス印刷装置において、
前記水性ニス乾燥手段は、ＵＶインク印刷手段の排気ダクトに接続して排熱ガスを水性ニスの乾燥に用いる水性ニス乾燥ダクトを備え、前記水性ニス乾燥手段は、前記水性ニス乾燥ダクトの配管途中に前記排熱ガスをミストで所定湿度に加湿し、所定温度に冷却する加湿部を備えたことを特徴とする水性ニス印刷装置を提供することにある。
上記第１の手段によれば、従来の赤外線による乾燥手段と比べて、水性ニス乾燥の熱源コストを大幅に低減できる。
また所定湿度に加湿した熱風を用いることにより紙の印刷物の場合には収縮やワレ、フィルム・薄紙の印刷物の場合にはカールなどの不具合を防止できる。
The present invention relates to a water-based varnish printing apparatus provided with a water-based varnish printing means and a water-based varnish drying means as a first means for solving the above problems.
The water-based varnish drying means includes a water-based varnish drying duct that is connected to an exhaust duct of a UV ink printing means and uses exhaust heat gas for drying the water- based varnish. Further, it is an object of the present invention to provide a water-based varnish printing apparatus provided with a humidifying portion for humidifying the exhaust heat gas to a predetermined humidity with a mist and cooling the exhaust heat gas to a predetermined temperature .
According to the first means, the heat source cost of water-based varnish drying can be significantly reduced as compared with the conventional infrared drying means.
Further, by using hot air humidified to a predetermined humidity, it is possible to prevent problems such as shrinkage and cracking in the case of printed matter on paper and curling in the case of printed matter on film / thin paper.
本発明は、上記課題を解決するための第２の手段として、第１の手段において、前記水性ニス乾燥手段は、前記水性ニス乾燥ダクトの配管途中に前記排熱ガス中に含まれる有機化合物の脱臭部を備えたことを特徴とする水性ニス印刷装置を提供することにある。
上記第２の手段によれば、排熱ガス中に含まれる有機化合物を除去して、良好な作業環境を維持できる。
According to the present invention, as a second means for solving the above-mentioned problems, in the first means, the water-based varnish drying means is an organic compound contained in the exhaust heat gas in the middle of piping of the water-based varnish drying duct. It is an object of the present invention to provide a water-based varnish printing apparatus characterized by having a deodorizing portion.
According to the second means, the organic compound contained in the waste heat gas can be removed to maintain a good working environment.
本発明は、上記課題を解決するための第３の手段として、第１又は２の手段において、前記水性ニス乾燥手段は、
前記水性ニス乾燥ダクト中の前記排熱ガスの温湿度を測定する温湿度センサと、
前記温湿度センサ及び前記加湿部に電気的に接続して、前記温湿度センサの測定値が前記排熱ガスの所定温湿度に収まる加湿制御を行う制御部を備えたことを特徴とする水性ニス印刷装置を提供することにある。
上記第３の手段によれば、印刷物の安定したコーティング処理が行える。
According to the present invention, as a third means for solving the above-mentioned problems, in the first or second means, the aqueous varnish drying means is used.
A temperature / humidity sensor that measures the temperature / humidity of the waste heat gas in the water-based varnish drying duct,
A water-based varnish provided with a control unit that is electrically connected to the temperature / humidity sensor and the humidifying unit to control humidification so that the measured value of the temperature / humidity sensor falls within a predetermined temperature / humidity of the exhaust heat gas. The purpose is to provide a printing device.
According to the third means, stable coating treatment of printed matter can be performed.
本発明によれば、従来の赤外線による乾燥手段と比べて、水性ニス乾燥の熱源コストを大幅に低減できる。
また所定湿度に加湿した熱風を用いることにより紙の印刷物の場合には収縮、ワレ、フィルム・薄紙の印刷物の場合にはカールを防止できる。
さらに紫外線照射手段から排出される排熱ガスの排熱をリサイクルして有効利用できる。
According to the present invention, the heat source cost of water-based varnish drying can be significantly reduced as compared with the conventional infrared drying means.
Further, by using hot air humidified to a predetermined humidity, shrinkage and cracking can be prevented in the case of printed matter on paper, and curling can be prevented in the case of printed matter on film / thin paper.
Further, the waste heat of the waste heat gas discharged from the ultraviolet irradiation means can be recycled and effectively used.
本発明の水性ニス印刷装置の実施形態について、添付の図面を参照しながら、以下詳細に説明する。
［水性ニス印刷装置１０］
本発明の水性ニス印刷装置１０は、ＵＶインクと水性ニスを用いて印刷物を印刷する印刷装置（前段でＵＶインクを用いた印刷を行い、後段で水性ニスを用いた印刷を行う装置）に設けている。図１は、本発明の水性ニス印刷装置の構成概略図である。図示のように本発明の水性ニス印刷装置１０は、水性ニス乾燥ダクト２２と、加湿部２４と、脱臭部２６、温湿度センサ２８、制御部３０を有する水性ニス乾燥手段２０と水性ニス印刷手段を備えている。水性ニス印刷手段はＵＶインクを用いた印刷物の表面に水性ニスを印刷する手段である。
An embodiment of the water-based varnish printing apparatus of the present invention will be described in detail below with reference to the accompanying drawings.
[Aqueous varnish printing device 10]
The water-based varnish printing device 10 of the present invention is provided in a printing device that prints a printed matter using UV ink and water-based varnish (a device that prints using UV ink in the first stage and prints using water-based varnish in the second stage). ing. FIG. 1 is a schematic configuration diagram of the water-based varnish printing apparatus of the present invention. As shown in the figure, the water-based varnish printing apparatus 10 of the present invention includes a water-based varnish drying duct 22, a
水性ニス乾燥ダクト２２は、一端がＵＶインク印刷手段の排気ダクトに接続し、他端が水性ニス乾燥手段２０の本体に接続したダクトである。ここで排気ダクトは、ＵＶインク印刷工程で生じるＵＶ照射手段（ＵＶランプ）の発熱と、ＵＶインクを乾燥して生じる有機化合物（有機溶剤）からなる排熱ガスを集約して外部へ排気するダクトである。なお排気ダクト中の排熱ガスの温度は、一例として１２０℃～１４０℃であり、湿度２０～４０％である。本実施形態の水性ニス乾燥ダクト２２はダンパー（不図示）を介して排気ダクトから分岐させて排熱ガスの一部又は全て（ＵＶインク印刷手段の規模に応じて変更可能）を水性ニスの乾燥工程に用いている。 The water-based varnish drying duct 22 is a duct having one end connected to the exhaust duct of the UV ink printing means and the other end connected to the main body of the water-based varnish drying means 20. Here, the exhaust duct is a duct that collects the heat generated by the UV irradiation means (UV lamp) generated in the UV ink printing process and the exhaust heat gas composed of the organic compound (organic solvent) generated by drying the UV ink and exhausts it to the outside. Is. The temperature of the exhaust heat gas in the exhaust duct is, for example, 120 ° C to 140 ° C and a humidity of 20 to 40%. The water-based varnish drying duct 22 of the present embodiment is branched from the exhaust duct via a damper (not shown) to dry a part or all of the exhaust heat gas (which can be changed according to the scale of the UV ink printing means) to dry the water-based varnish. Used in the process.
通常、排熱ガスは高温、低湿度かつ有機化合物を含んでいるため、そのままでは水性ニスの乾燥工程に適用することができない。そこで、本発明では加湿部２４を水性ニス乾燥ダクト２２上に設け、通過する排熱ガスを所定湿度（一例として７０％以上）に加湿及び所定温度（一例として６０℃～８０℃）に冷却している。本実施形態の加湿部２４は、一例として加湿部本体の内部をミスト雰囲気にするミスト噴霧器を適用している。
Normally, the waste heat gas has high temperature, low humidity and contains organic compounds, so that it cannot be applied to the drying step of the aqueous varnish as it is. Therefore, in the present invention, the humidifying
脱臭部２６は、水性ニス乾燥ダクト２２上に設け、通過する排熱ガス中に含まれる有機化合物を除去している。本実施形態の脱臭部２６は、一例として活性炭、ゼオライト等を含むフィルターを用いて小型化を図っている。脱臭部２６は、水性ニス乾燥ダクト２２上で加湿部２４よりも上流側に設けて、下流側の加湿部２４で排熱ガスを所定湿度に維持できるようにしている。なお排熱ガス中に含まれる有機化合物（水溶性）が加湿部２４で除去可能な場合には脱臭部２６の構成を省略することもできる。
温湿度センサ２８は、脱臭部２６を通過した排熱ガスの温度及び湿度を測定可能なセンサである。温湿度センサ２８は後述する制御部３０と有線又は無線を介して電気的に接続して測定値を送信可能に構成している。
制御部３０は、温湿度センサ２８及び加湿部２４と有線又は無線を介して電気的に接続している。制御部３０は、受信した温湿度センサ２８の測定値が排熱ガスの所定温湿度の範囲内に収まるように加湿制御を行っている。一例として排熱ガスの温度を６０℃～８０℃、湿度を７０％以上の設定範囲とする。より具体的に制御部３０は、温湿度センサ２８の測定値がこの設定範囲に収まるように加湿部２４のミスト噴霧量を増減する制御（例えば温度が８０℃よりも高温の場合にはミスト量を増量し、温度が４０℃よりも低い場合にはミスト量を減量する）を行っている。この他、制御部による温湿度の制御は、水性ニス乾燥ダクト２２の送風ファン（不図示）の送風量の増減によっても実施できる。
The deodorizing
The temperature / humidity sensor 28 is a sensor capable of measuring the temperature and humidity of the exhaust heat gas that has passed through the
The
［作用］
上記構成による本発明の水性ニス乾燥装置の作用について、以下説明する。
ＵＶインク印刷手段によるＵＶインクの乾燥工程でＵＶランプの発熱と有機溶剤からなる排熱ガスが生じる。各印刷手段の排熱ガスは排気ダクトに集約されて外部へ排気される。この排熱ガスの一部又は全てを水性ニス乾燥ダクト２２から取り込む。取り込む量はダンパーによって任意に調整可能である。
そして水性ニス乾燥ダクト２２上の脱臭部２６で排熱ガス中に含まれる有機化合物を除去する。次いで水性ニス乾燥ダクト２２上の加湿部２４でミスト雰囲気中、加湿および冷却する。加湿部２４の下流側の水性ニス乾燥ダクト２２上に設置した温湿度センサ２８で排熱ガスの温湿度を測定する。
測定値が制御部３０へ送信され、制御部３０では測定値が設定湿度（７０％以上）、設定温度（６０℃～８０℃）に収まるように、加湿部２４のミスト雰囲気を増減して制御する。
このような本発明の水性ニス印刷装置１０によれば、従来の赤外線による乾燥手段と比べて、水性ニス乾燥の熱源コストを大幅に低減できる。
また所定湿度に加湿した熱風を用いることにより紙の印刷物の場合には収縮、ワレ、フィルム・薄紙の印刷物の場合にはカールを防止できる。
[Action]
The operation of the aqueous varnish drying apparatus of the present invention according to the above configuration will be described below.
In the process of drying UV ink by the UV ink printing means, heat generated by the UV lamp and exhaust heat gas composed of an organic solvent are generated. The exhaust heat gas of each printing means is collected in the exhaust duct and exhausted to the outside. Part or all of this waste heat gas is taken in from the water-based varnish drying duct 22. The amount to be taken in can be arbitrarily adjusted by the damper.
Then, the organic compound contained in the waste heat gas is removed by the deodorizing
The measured value is transmitted to the
According to the water-based varnish printing apparatus 10 of the present invention as described above, the heat source cost for drying the water-based varnish can be significantly reduced as compared with the conventional drying means using infrared rays.
Further, by using hot air humidified to a predetermined humidity, shrinkage and cracking can be prevented in the case of printed matter on paper, and curling can be prevented in the case of printed matter on film / thin paper.
以上、本発明の好ましい実施形態について説明した。しかしながら、本発明は、上記実施形態に何ら制限されることなく、本発明の主旨を逸脱しない範囲において、種々の変更が可能である。
また、本発明は、実施形態において示された組み合わせに限定されることなく、種々の組み合わせによって実施可能である。
The preferred embodiment of the present invention has been described above. However, the present invention is not limited to the above embodiment, and various modifications can be made without departing from the gist of the present invention.
Further, the present invention is not limited to the combinations shown in the embodiments, and can be implemented by various combinations.
本発明の水性ニス印刷装置は、特に印刷物の表面にコーティング処理を施す印刷分野において産業上の利用可能性を有する。 The water-based varnish printing apparatus of the present invention has industrial applicability, especially in the field of printing in which the surface of a printed matter is coated.
１０ 水性ニス印刷装置
２０ 水性ニス乾燥手段
２２ 水性ニス乾燥ダクト
２４ 加湿部
２６ 脱臭部
２８ 温湿度センサ
３０ 制御部
10 Water-based varnish printing device 20 Water-based varnish drying means 22 Water-based
Claims (3)
前記水性ニス乾燥手段は、ＵＶインク印刷手段の排気ダクトに接続して排熱ガスを水性ニスの乾燥に用いる水性ニス乾燥ダクトを備え、前記水性ニス乾燥手段は、前記水性ニス乾燥ダクトの配管途中に前記排熱ガスをミストで所定湿度に加湿し、所定温度に冷却する加湿部を備えたことを特徴とする水性ニス印刷装置。 In a water-based varnish printing device equipped with a water-based varnish printing means and a water-based varnish drying means,
The water-based varnish drying means includes a water-based varnish drying duct that is connected to an exhaust duct of a UV ink printing means and uses exhaust heat gas for drying the water- based varnish. A water-based varnish printing apparatus comprising a humidifying portion that humidifies the exhaust heat gas to a predetermined humidity with a mist and cools the exhaust heat gas to a predetermined temperature .
前記水性ニス乾燥手段は、前記水性ニス乾燥ダクトの配管途中に前記排熱ガス中に含まれる有機化合物の脱臭部を備えたことを特徴とする水性ニス印刷装置。 The water-based varnish printing apparatus according to claim 1 .
The water-based varnish drying means is a water-based varnish printing apparatus including a deodorizing portion of an organic compound contained in the exhaust heat gas in the middle of piping of the water-based varnish drying duct.
前記水性ニス乾燥手段は、
前記水性ニス乾燥ダクト中の前記排熱ガスの温湿度を測定する温湿度センサと、
前記温湿度センサ及び前記加湿部に電気的に接続して、前記温湿度センサの測定値を前記排熱ガスの所定温湿度に収める加湿制御を行う制御部を備えたことを特徴とする水性ニス印刷装置。 The water-based varnish printing apparatus according to claim 1 or 2.
The water-based varnish drying means
A temperature / humidity sensor that measures the temperature / humidity of the waste heat gas in the water-based varnish drying duct,
A water-based varnish provided with a control unit that is electrically connected to the temperature / humidity sensor and the humidifying unit to control humidification so that the measured value of the temperature / humidity sensor is contained in a predetermined temperature / humidity of the exhaust heat gas. Printing device.
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| DE102004048857A1 (en) | 2003-10-27 | 2005-05-25 | Heidelberger Druckmaschinen Ag | Process for utilizing warm air from a printing device comprises feeding the air to a drier of a printing machine for processing print material |
| JP2008020182A (en) | 2006-07-14 | 2008-01-31 | Man Roland Druckmas Ag | Dryer for treating material surface to be printed in working machine |
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| JP2010234743A (en) | 2009-03-31 | 2010-10-21 | Mitsubishi Heavy Ind Ltd | Exhaust device for printing target medium delivery part, printing target medium delivery device, and printer |
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| JP2012020504A (en) | 2010-07-15 | 2012-02-02 | Nk Works Kk | Drying unit |
| JP2012121327A (en) | 2010-12-03 | 2012-06-28 | Heiderberger Druckmaschinen Ag | Sheet processing machine, in particular sheet printing machine |
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| JP2020029030A (en) | 2020-02-27 |
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