JP5857463B2 - Manufacturing method of pressure-sensitive adhesive products - Google Patents

Manufacturing method of pressure-sensitive adhesive products Download PDF

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JP5857463B2
JP5857463B2 JP2011134133A JP2011134133A JP5857463B2 JP 5857463 B2 JP5857463 B2 JP 5857463B2 JP 2011134133 A JP2011134133 A JP 2011134133A JP 2011134133 A JP2011134133 A JP 2011134133A JP 5857463 B2 JP5857463 B2 JP 5857463B2
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sensitive adhesive
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ink
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JP2013000975A (en
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住田 剛士
剛士 住田
健志 伴
健志 伴
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Dai Nippon Printing Co Ltd
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Description

本発明は、接着後1度剥離すると接着不能となるように、圧力を加えて接着する感圧接着製品の製造方法に関する。 The present invention, as will become impossible adhesive and peeled off once after bonding, a method of manufacturing to that pressure sensitive product bonded by applying pressure.

従来、配送の途中で他人に見られないように、内側の情報記載面を接着剤で接着した隠蔽葉書が利用されている。このような隠蔽葉書では、一度開いたら、通常の加圧では再度接着しない性質をもつ感圧接着剤が用いられている(特許文献1、2参照)。   Conventionally, a concealed postcard in which an inner information description surface is bonded with an adhesive is used so that it cannot be seen by others during delivery. In such a concealed postcard, a pressure-sensitive adhesive having a property that once opened, it does not adhere again under normal pressure is used (see Patent Documents 1 and 2).

特開2009−196086号公報JP 2009-196086 A 特開2010−143083号公報JP 2010-143083 A

上記隠蔽葉書のような、感圧接着剤を用いた感圧接着製品において、絵柄をインクジェットインキで印刷する場合がある。この場合、感圧接着させる側では、インクジェットインキで印刷された絵柄の表面に感圧接着剤が塗布されるため、インクジェットインキによる絵柄が保護される。しかし、感圧接着剤と反対側の面については、保護されていないため、感圧接着製品を巻き取った際に、感圧接着剤と反対側のインクジェットインキが、感圧接着剤の粘着性により取られてしまい、感圧接着剤側にインキ転写してしまうという問題がある。   In a pressure-sensitive adhesive product using a pressure-sensitive adhesive, such as the above-mentioned concealment postcard, a pattern may be printed with inkjet ink. In this case, the pressure-sensitive adhesive is applied to the surface of the pattern printed with the ink-jet ink on the pressure-sensitive adhesive side, so that the pattern with the ink-jet ink is protected. However, since the surface opposite to the pressure sensitive adhesive is not protected, when the pressure sensitive adhesive product is wound, the ink jet ink on the opposite side of the pressure sensitive adhesive is not sticky to the pressure sensitive adhesive. There is a problem that the ink is transferred to the pressure-sensitive adhesive side.

そこで、本発明は、インクジェットインキで印刷が施された感圧接着製品を巻き取った際に、感圧接着剤が塗布されていない面のインクジェットインキが、感圧接着剤側に転写することを防止することが可能な感圧接着製品の製造方法を提供することを課題とする。 Therefore, the present invention is intended to transfer the ink-jet ink on the surface not coated with the pressure-sensitive adhesive to the pressure-sensitive adhesive side when the pressure-sensitive adhesive product printed with the ink-jet ink is wound up. It is an object to provide a method for producing a pressure- sensitive adhesive product that can be prevented.

上記課題を解決するため、請求項の感圧接着製品の製造方法は、基材の一方の面にインクジェットインキで印刷を行う段階と、基材の前記インクジェットインキで印刷された面と反対側に感圧接着剤を塗布する段階と、前記感圧接着剤を乾燥させる段階と、フレキソ印刷機により前記印刷されたインクジェットインキの外側に透明ニスを塗布する段階と、前記透明ニスを乾燥させる段階と、感圧接着剤が表出した連続シート状の前記基材をロール状に巻き取る段階と、前記感圧接着剤が表出した連続シート状の前記基材を各製品単位でシートカットする段階と、前記製品単位で折り加工を行い、感圧接着剤が塗布された側を圧着させる段階を有することを特徴とする。 In order to solve the above-mentioned problems, a method for producing a pressure-sensitive adhesive product according to claim 1 includes a step of printing on one surface of a substrate with inkjet ink, and a side of the substrate opposite to the surface printed with the inkjet ink. A step of applying a pressure-sensitive adhesive to the substrate, a step of drying the pressure-sensitive adhesive, a step of applying a transparent varnish to the outside of the printed inkjet ink by a flexographic printing machine, and a step of drying the transparent varnish A step of winding the continuous sheet-like base material on which the pressure-sensitive adhesive is exposed, and sheet-cutting the continuous sheet-like base material on which the pressure-sensitive adhesive is exposed on a product basis And a step of performing a folding process for each product unit and crimping the side to which the pressure-sensitive adhesive is applied.

請求項の感圧接着製品の製造方法によれば、インキジェットインキで印刷を行った後、その反対側の面に感圧接着剤を塗布し、インキジェットインキの外側に透明ニスを塗布するようにしたので、インクジェットインキが、感圧接着剤側に転写することを防止する感圧接着製品を効率的に製造することが可能となる。
According to the method for producing a pressure-sensitive adhesive product of claim 1 , after printing with ink jet ink, the pressure sensitive adhesive is applied to the opposite surface, and the transparent varnish is applied to the outside of the ink jet ink. Since it did in this way, it becomes possible to manufacture efficiently the pressure sensitive adhesive product which prevents that inkjet ink transfers to the pressure sensitive adhesive side.

本発明によれば、インクジェットインキで印刷が施された感圧接着製品を巻き取った際に、感圧接着剤が塗布されていない面のインクジェットインキが、感圧接着剤側に転写することを防止することが可能となる。   According to the present invention, when the pressure-sensitive adhesive product printed with the ink-jet ink is wound, the ink-jet ink on the surface not coated with the pressure-sensitive adhesive is transferred to the pressure-sensitive adhesive side. It becomes possible to prevent.

本発明の一実施形態に係る感圧接着製品の平面図および断面図である。It is the top view and sectional view of a pressure sensitive adhesive product concerning one embodiment of the present invention. 本発明の一実施形態に係る感圧接着製品の製造方法による製造の様子を示す図である。It is a figure which shows the mode of manufacture by the manufacturing method of the pressure sensitive adhesive product which concerns on one Embodiment of this invention.

以下、本発明の好適な実施形態について、図面を参照して詳細に説明する。
図1は、本発明に係る感圧接着製品を示す図である。図1(a)は平面図、図1(b)は図1(a)におけるA−Aに対応する断面図である。
DESCRIPTION OF EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings.
FIG. 1 is a view showing a pressure-sensitive adhesive product according to the present invention. FIG. 1A is a plan view, and FIG. 1B is a cross-sectional view corresponding to AA in FIG.

図1(a)は、感圧接着製品を感圧接着剤層6側から見た平面図であり、点線で表現した2は、折り線を示している。折り線2は、感圧接着剤層6同士を圧着する際に折るための線であり、ミシン目等により形成することができる。   Fig.1 (a) is the top view which looked at the pressure sensitive adhesive product from the pressure sensitive adhesive layer 6 side, 2 shown with the dotted line has shown the folding line. The fold line 2 is a line for folding when the pressure-sensitive adhesive layers 6 are pressure-bonded, and can be formed by perforations or the like.

本実施形態の感圧接着製品は、図1(b)に示すように、基材3の両面に、インクジェットインキによる印刷層4、5が形成され、印刷層5の上層に感圧接着剤層6、印刷層4の下層に透明ニス層7が形成された構成となっている。また、折り線2は、基材3に形成される。   In the pressure-sensitive adhesive product of this embodiment, as shown in FIG. 1B, printing layers 4 and 5 using inkjet ink are formed on both surfaces of the substrate 3, and a pressure-sensitive adhesive layer is formed on the upper layer of the printing layer 5. 6. A transparent varnish layer 7 is formed below the print layer 4. The fold line 2 is formed on the substrate 3.

基材3としては、製品の目的、特徴に応じて、例えば、上質紙、中質紙、下級紙、色上質紙等の非塗工紙、アート紙、コート紙、軽量コート紙等の塗工紙、エンボス紙、キャストコート紙、クラフト紙等から適宜選択して使用することができる。   As the base material 3, depending on the purpose and characteristics of the product, for example, non-coated paper such as high-quality paper, medium-quality paper, lower grade paper, and colored high-quality paper, coating of art paper, coated paper, lightweight coated paper, etc. Paper, embossed paper, cast-coated paper, kraft paper, etc. can be appropriately selected and used.

感圧接着剤層6は、感圧接着剤を塗布することにより形成される。感圧接着剤としては、圧力を加えることにより接着するものであれば、公知のものを適宜選択して使用することができる。   The pressure sensitive adhesive layer 6 is formed by applying a pressure sensitive adhesive. As the pressure-sensitive adhesive, known adhesives can be appropriately selected and used as long as they are bonded by applying pressure.

透明ニス層7は、透明ニスを印刷層4の表面に塗布することにより形成される。透明ニスとしては、所定の処理を施すことにより透明な被膜を形成することが可能なものであれば、公知のものを適宜選択して使用することができる。   The transparent varnish layer 7 is formed by applying a transparent varnish to the surface of the printing layer 4. As the transparent varnish, a known varnish can be appropriately selected and used as long as it can form a transparent film by performing a predetermined treatment.

次に、本発明の一実施形態に係る感圧接着製品の製造方法について説明する。図2は、本実施形態に係る感圧接着製品の製造方法による製造の様子を示す製品断面図である。まず、所定のインクジェットインキを用いて、基材3に絵柄などの印刷を施し、印刷層4、5を形成する。これにより、図2(a)に示すように、基材3の両面に印刷層4、5が形成される。印刷層5の形成後、印刷層5の上面に個人情報等、秘密にすべき情報の印字を行う。   Next, the manufacturing method of the pressure sensitive adhesive product which concerns on one Embodiment of this invention is demonstrated. FIG. 2 is a product cross-sectional view showing a state of production by the method for producing a pressure-sensitive adhesive product according to the present embodiment. First, using a predetermined inkjet ink, the substrate 3 is printed with a pattern or the like to form the print layers 4 and 5. Thereby, as shown to Fig.2 (a), the printing layers 4 and 5 are formed in both surfaces of the base material 3. FIG. After the printing layer 5 is formed, information to be kept secret such as personal information is printed on the upper surface of the printing layer 5.

次に、印刷層4、5が形成された基材3に折り線加工を施す。本実施形態では、印刷層5側から折り線加工を行う。これにより、図2(b)に示すように、基材3の印刷層5側に折り線2が形成される。折り線2としては、折るための補助となる線であれば、どのような加工態様であっても良く、本実施形態ではミシン目加工としている。   Next, fold line processing is performed on the base material 3 on which the printed layers 4 and 5 are formed. In the present embodiment, the folding line processing is performed from the printed layer 5 side. Thereby, as shown in FIG.2 (b), the fold line 2 is formed in the printed layer 5 side of the base material 3. FIG. As long as the folding line 2 is an auxiliary line for folding, any processing mode may be used, and in this embodiment, the perforation is used.

折り線加工が行われたら、次に、印刷層5の上層に、感圧接着剤を塗布し、乾燥させる。これにより、図2(c)に示すように、印刷層5上に感圧接着剤層6が形成される。   After the fold line processing is performed, next, a pressure sensitive adhesive is applied to the upper layer of the printing layer 5 and dried. Thereby, as shown in FIG.2 (c), the pressure sensitive adhesive layer 6 is formed on the printing layer 5. FIG.

感圧接着剤層6が形成されたら、次に、印刷層4の表面(図2においては下側)に、透明ニスを塗布し、乾燥させる。これにより、図2(d)に示すように、印刷層4の下層に透明ニス層7が形成される。   After the pressure-sensitive adhesive layer 6 is formed, a transparent varnish is applied to the surface of the printing layer 4 (the lower side in FIG. 2) and dried. Thereby, the transparent varnish layer 7 is formed in the lower layer of the printing layer 4 as shown in FIG.

本実施形態による製造方法では、図2(d)に示したように、透明ニス層7を印刷層4の表面に形成した後、連続シートを巻き取るので、巻き取り時に透明ニス層7が印刷層4を保護し、印刷層4が感圧接着剤層6に直接接することがない。このため、感圧接着剤が塗布されていない側である印刷層4のインクジェットインキが、感圧接着剤層6に転写することを防止することが可能となる。   In the manufacturing method according to the present embodiment, as shown in FIG. 2 (d), after forming the transparent varnish layer 7 on the surface of the printing layer 4, the continuous sheet is wound up, so that the transparent varnish layer 7 is printed during winding. The layer 4 is protected, and the printed layer 4 does not directly contact the pressure-sensitive adhesive layer 6. For this reason, it becomes possible to prevent the inkjet ink of the printing layer 4 on the side where the pressure-sensitive adhesive is not applied from being transferred to the pressure-sensitive adhesive layer 6.

ロール状に巻き取られた後、ロール状となったシートは、搬送され、各製品単位にカットされ、分離される。その後、各製品について、折り線2から折加工を行い、感圧接着剤層6同士を重ね合わせ、さらに圧力を加えて、対向する感圧接着剤層6の感圧接着剤を接着させる。これにより、図2(e)に示すように、印刷層5を基材3の内側にして接着が行われる。この結果、感圧接着製品1においては、印刷層5は、基材3により隠蔽されることになり、印刷された情報を外部から知ることはできなくなる。   After being rolled up, the rolled sheet is conveyed, cut into individual products, and separated. Thereafter, each product is folded from the fold line 2, the pressure-sensitive adhesive layers 6 are overlapped with each other, and pressure is further applied to adhere the pressure-sensitive adhesives of the opposing pressure-sensitive adhesive layers 6. Thereby, as shown in FIG.2 (e), adhesion is performed by making the printing layer 5 into the base material 3 inside. As a result, in the pressure-sensitive adhesive product 1, the printing layer 5 is hidden by the base material 3, and the printed information cannot be known from the outside.

<実施例>
基材3には、三菱製紙IJ−S−G用紙110kg/四六を使用した。印刷層4、5の形成のための絵柄及び個人情報の印刷は、大日本スクリーン製のインクジェットプリンタTruepressJet520にて行った。なお、インクジェットインキは、水性顔料タイプで、印刷後は、80℃の熱ローラーでインキを乾燥させた。
<Example>
As the base material 3, 110 kg / 46 of Mitsubishi Paper IJ-S-G paper was used. Printing of the pattern and personal information for forming the printing layers 4 and 5 was performed by an ink jet printer Truepress Jet 520 manufactured by Dainippon Screen. The ink-jet ink was an aqueous pigment type, and after printing, the ink was dried with a hot roller at 80 ° C.

感圧接着剤層6の形成は、フレキソ印刷機にて、UV硬化型の感圧接着剤を塗布した後、UV乾燥することにより行った。UV硬化型の感圧接着剤として、互応化学製プラスサイズOP−5250を使用した。   The pressure-sensitive adhesive layer 6 was formed by applying a UV curable pressure-sensitive adhesive with a flexographic printing machine, followed by UV drying. As a UV curable pressure sensitive adhesive, a plus size OP-5250 made by Kyoto Chemical was used.

透明ニス層7の形成は、感圧接着剤層6と同様、フレキソ印刷機にて、UV硬化型の透明ニスを塗布した後、UV乾燥することにより行った。UV硬化型の透明ニスとして、DICグラフィック製ダイキュアクリアーUV−1601EMを使用した。また、透明ニスの塗布厚は、1〜10μmとすることが望ましい。塗布厚が1μm未満であると、印刷層4のインクジェットインキが、感圧接着剤層6に転写することを完全に防ぐことはできず、塗布厚が10μmを超えると、透明ニスの量が多すぎて、UV乾燥が悪くなり、生乾きの状態になり、べたつき不良(ブロッキング)の原因となる。   The transparent varnish layer 7 was formed by applying a UV curable transparent varnish with a flexographic printing machine, followed by UV drying, as with the pressure-sensitive adhesive layer 6. As a UV curable transparent varnish, Dicure Clear UV-1601EM manufactured by DIC Graphics was used. The coating thickness of the transparent varnish is desirably 1 to 10 μm. If the coating thickness is less than 1 μm, the ink jet ink of the printing layer 4 cannot be completely prevented from being transferred to the pressure-sensitive adhesive layer 6. If the coating thickness exceeds 10 μm, the amount of transparent varnish is large. Thus, UV drying becomes worse, it becomes a state of raw drying, and causes sticking failure (blocking).

透明ニス層7の形成後、ロール状のシートをカットして各製品単位に分離し、折加工機により折り線2で感圧接着剤層6同士を重ね合わせ、圧着させることで開封可能でインキ転写汚れのない感圧接着製品が作成された。実施例の方法で製造した製品は、インクジェットインキの転写もなく、圧着後の開封も問題ない製品に仕上がった。   After forming the transparent varnish layer 7, the roll-shaped sheet is cut and separated into individual product units, and the pressure-sensitive adhesive layers 6 are overlapped with each other at the fold line 2 by a folding machine and can be opened by pressure bonding. A pressure-sensitive adhesive product without transfer stain was created. The product manufactured by the method of the example was finished without any transfer of the ink-jet ink and no problem with opening after the press bonding.

以上、本発明の好適な実施形態について説明したが、本発明は上記実施形態に限定されず、種々の変形が可能である。例えば、上記実施形態では、印刷層5の絵柄や文字もインクジェットインキを用いて印刷したが、印刷層5の絵柄や文字は、インクジェットインキを用いず、他の手法により印刷したものであっても良い。   The preferred embodiments of the present invention have been described above. However, the present invention is not limited to the above embodiments, and various modifications can be made. For example, in the said embodiment, although the pattern and the character of the printing layer 5 were printed using inkjet ink, even if the pattern and the character of the printing layer 5 were printed by other methods, without using inkjet ink. good.

1・・・感圧接着製品
2・・・折り線
3・・・基材
4、5・・・印刷層
6・・・感圧接着剤層
7・・・透明ニス層
DESCRIPTION OF SYMBOLS 1 ... Pressure-sensitive adhesive product 2 ... Folding line 3 ... Base material 4, 5 ... Print layer 6 ... Pressure-sensitive adhesive layer 7 ... Transparent varnish layer

Claims (1)

基材の一方の面にインクジェットインキで印刷を行う段階と、
基材の前記インクジェットインキで印刷された面と反対側に感圧接着剤を塗布する段階と、
前記感圧接着剤を乾燥させる段階と、
フレキソ印刷機により前記印刷されたインクジェットインキの外側に透明ニスを塗布する段階と、
前記透明ニスを乾燥させる段階と、
感圧接着剤が表出した連続シート状の前記基材をロール状に巻き取る段階と、
前記感圧接着剤が表出した連続シート状の前記基材を各製品単位でシートカットする段階と、
前記製品単位で折り加工を行い、感圧接着剤が塗布された側を圧着させる段階と、
を有することを特徴とする感圧接着製品の製造方法。
Printing on one side of the substrate with inkjet ink;
Applying a pressure sensitive adhesive to the opposite side of the substrate printed with the inkjet ink; and
Drying the pressure sensitive adhesive;
Applying a transparent varnish to the outside of the printed ink-jet ink by a flexographic press;
Drying the transparent varnish;
A step of winding the base material in the form of a continuous sheet in which the pressure sensitive adhesive is exposed;
Cutting the sheet of the continuous sheet-like base material from which the pressure-sensitive adhesive is exposed in units of each product;
Folding the product unit and crimping the pressure-sensitive adhesive applied side;
A method for producing a pressure-sensitive adhesive product, comprising:
JP2011134133A 2011-06-16 2011-06-16 Manufacturing method of pressure-sensitive adhesive products Active JP5857463B2 (en)

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