JP2006113310A - Flexographic printing plate and plate making method - Google Patents

Flexographic printing plate and plate making method Download PDF

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JP2006113310A
JP2006113310A JP2004300847A JP2004300847A JP2006113310A JP 2006113310 A JP2006113310 A JP 2006113310A JP 2004300847 A JP2004300847 A JP 2004300847A JP 2004300847 A JP2004300847 A JP 2004300847A JP 2006113310 A JP2006113310 A JP 2006113310A
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protective film
plate
flexographic printing
printing
printing plate
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JP2004300847A
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Japanese (ja)
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Masayuki Matsubara
昌幸 松原
Takashi Shimatani
隆史 島谷
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Union Chemical Co Ltd
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Union Chemical Co Ltd
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  • Manufacture Or Reproduction Of Printing Formes (AREA)
  • Ink Jet Recording Methods And Recording Media Thereof (AREA)
  • Photosensitive Polymer And Photoresist Processing (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a flexographic printing plate in which resources can be effectively utilized and it is possible to easily perform plate making, and to provide a plate making method for the same. <P>SOLUTION: The flexographic printing plate has a protective film on a UV sensitive emulsion layer and a positive or negative image is printed on the protective film. A positive or negative image is printed on the protective film with an ink-jet printer. The flexographic printing plate further has an ink receiving layer on the protective film. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

本発明は、ＵＶ感光乳剤層上に保護フィルムを有するフレキソ印刷用刷版及び製版方法に関するものである。 The present invention relates to a flexographic printing plate having a protective film on a UV-sensitive emulsion layer and a plate making method.

ＵＶ感光乳剤層上に保護フィルムを有するフレキソ印刷用刷版において、該保護フィルムの用途はＵＶ感光乳剤層の保護のみに用いられているのが一般的であり、該保護フィルムを剥がしゴミとして処分しているのが現状である。そして、剥がした該保護フィルムに替わり、別に用意したネガ画像またはポジ画像を印刷済みである製版用フィルムをＵＶ感光乳剤層上に貼り合わせた後、露光および現像を行い、可溶部分を除去する製版方法が主流である。しかしながらこの製版方法では、保護フィルムはＵＶ感光乳剤層の保護のみに用いられていることから、限りある資源が有効に使われていない。さらには、ＵＶ感光乳剤層と製版用フィルムの貼りあわせを個々ユーザーが行う必要があることから、位置合わせがずれてしまうと品質低下が起き、また貼り合わせの際に空気が混入しまうと製版用フィルムとUV感光乳剤層との間に隙間が生じるため、露光時にエッジが滲んでしまう。したがって貼り合わせに特別な装置が必要であったり、さらには作業に熟練を要する、といった問題があった。 In a flexographic printing plate having a protective film on a UV-sensitive emulsion layer, the protective film is generally used only for protecting the UV-sensitive emulsion layer, and the protective film is peeled off and disposed of as garbage. This is the current situation. Then, instead of the peeled off protective film, a plate-making film on which a separately prepared negative image or positive image has been printed is pasted onto the UV photosensitive emulsion layer, and then exposed and developed to remove soluble portions. The plate making method is mainstream. However, in this plate making method, the protective film is used only for protecting the UV light-sensitive emulsion layer, and therefore limited resources are not effectively used. Furthermore, since it is necessary for individual users to bond the UV light-sensitive emulsion layer and the plate-making film, the quality deteriorates if the position is shifted, and if air is mixed during the bonding, it is for plate-making. Since a gap is formed between the film and the UV-sensitive emulsion layer, the edge is blurred during exposure. Therefore, there has been a problem that a special device is required for bonding, and further that skill is required for work.

特開平１０−２５００２８では、製版用フィルムにインクジェット方式でネガ画像印刷を行った後に、該製版用フィルムと感光乳剤層とを貼りあわせ、その後露光の工程を行う方法が示されている。しかしながら、この製版方法では、前記位置合わせの困難や空気の混入の問題について解決に至っていない。特開２００２−３６１８２０では、感光乳剤層上に製版フィルムを介さず、直接ネガ画像をインクジェットで形成した後、露光を行う製版方法が述べられている。しかしながら、この製版方法では、感光乳剤層上にインクジェットインクを塗布した際、インクジェットインクを感光乳剤層表面に留めておくのは困難であり、感光乳剤層内部への浸透により露光が不十分になる、あるいは感光乳剤層上でのインクジェットインク滲みが発生することにより細線が表現できない、などの不具合が生じる可能性がある。
特開平１０−２５００２８ 特開２００２−３６１８２０ Japanese Laid-Open Patent Publication No. 10-250028 discloses a method in which a negative image is printed on a plate-making film by an ink jet method, and then the plate-making film and a photosensitive emulsion layer are bonded together, followed by an exposure step. However, this plate making method has not yet solved the problem of alignment and the problem of air contamination. Japanese Patent Laid-Open No. 2002-361820 describes a plate making method in which a negative image is directly formed on a photosensitive emulsion layer by an ink jet without using a plate making film, followed by exposure. However, in this plate-making method, it is difficult to keep the ink-jet ink on the surface of the light-sensitive emulsion layer when the ink-jet ink is coated on the light-sensitive emulsion layer, and exposure becomes insufficient due to penetration into the inside of the light-sensitive emulsion layer. In addition, there is a possibility that a problem such as that a thin line cannot be expressed due to occurrence of ink jet ink bleeding on the photosensitive emulsion layer.
JP 10-250028 JP 2002-361820 A

本発明の目的は、資源が有効に利用でき、容易に製版を行うことが可能である、フレキソ印刷用刷版およびその製版方法を提供することにある。 An object of the present invention is to provide a flexographic printing plate and a method for making the same, in which resources can be used effectively and can be easily made.

ＵＶ感光乳剤層上に保護フィルムを有するフレキソ印刷用刷版であって、ポジ画像あるいはネガ画像を該保護フィルム上に印刷することを特徴としてなる。また、前記保護フィルム上に、インクジェットプリンタによりポジ画像あるいはネガ画像を印刷するとよい。また、前記保護フィルム上に、インク受容層を有するとよい。 A printing plate for flexographic printing having a protective film on a UV-sensitive emulsion layer, wherein a positive image or a negative image is printed on the protective film. Moreover, it is good to print a positive image or a negative image on the said protective film with an inkjet printer. In addition, an ink receiving layer may be provided on the protective film.

資源が有効に利用でき、容易に製版を行うことが可能である、フレキソ印刷用刷版およびその製版方法を提供することができる。 It is possible to provide a flexographic printing plate and a method for making the same, which can effectively use resources and can be easily made.

本発明者らは鋭意検討の結果、ＵＶ感光乳剤層上に保護フィルムを有するフレキソ印刷用刷版であって、ポジ画像あるいはネガ画像を該保護フィルム上に印刷することによって、資源が有効に利用でき、容易に製版を行うことが可能である、フレキソ印刷用刷版およびその製版方法を提供するに至った。 As a result of intensive studies, the inventors of the present invention are flexographic printing plates having a protective film on a UV-sensitive emulsion layer, and resources are effectively utilized by printing a positive image or a negative image on the protective film. It has been possible to provide a flexographic printing plate and a method for making the same, which can be easily made.

ポジ画像あるいはネガ画像を保護フィルム上に印刷することによって、製版用フィルムを新たに用意する必要が無くなることから、省資源化が期待される。さらには熟練の技術や専用の装置が必要である製版用フィルムをＵＶ感光乳剤層上に貼り合わせる工程が不要になるため、高品質のものを安価でかつ安定して作成することが可能となる。 By printing a positive image or a negative image on a protective film, it is not necessary to prepare a new plate-making film, so resource saving is expected. Furthermore, since a process for bonding a plate-making film, which requires skilled technology and dedicated equipment, onto the UV-sensitive emulsion layer is not required, it becomes possible to produce a high-quality film inexpensively and stably. .

また、保護フィルム上に印刷するパターンは、従来の製版フィルムで用いているものと同様、ポジ画像あるいはネガ画像を印刷するとよい。マスクパターンの印刷方法は、オフセット印刷、フレキソ印刷、グラビア印刷、スクリーン印刷、熱転写印刷、レーザー印刷、インクジェット印刷などがありいずれのものでも使用可能であるが、コストパフォーマンスの点において、インクジェットプリンタによるインクジェット印刷が好ましい。 Moreover, the pattern printed on a protective film should print a positive image or a negative image similarly to what is used with the conventional platemaking film. The mask pattern printing method includes offset printing, flexographic printing, gravure printing, screen printing, thermal transfer printing, laser printing, and ink jet printing, and any of them can be used. However, in terms of cost performance, inkjet printing with an ink jet printer is possible. Printing is preferred.

また、保護フィルム上に直接印刷してもよいが、インク受容層があらかじめコーティングされているものがより好ましい。 Moreover, although it may print directly on a protective film, what was previously coated with the ink receiving layer is more preferable.

以下に実施例を挙げて本発明を具体的に説明するが、本発明がこれによって限定されるものではない。 EXAMPLES The present invention will be specifically described below with reference to examples, but the present invention is not limited thereto.

ＵＶ感光乳剤層上にポリエチレンテレフタレートの保護フィルムを設け、溶剤系黒色インクを用い、保護フィルム上にインクジェットプリンタにてポジ画像を出力した後、ＵＶランプによる露光を１０cmの距離から７０００ルクスにて１５時間行った。その後未硬化部分の洗浄を行い、フレキソ印刷用刷版を得た。 A protective film of polyethylene terephthalate is provided on the UV-sensitive emulsion layer, a solvent-based black ink is used, a positive image is output on the protective film by an ink jet printer, and exposure with a UV lamp is performed at a distance of 10 cm from 7000 lux at 15 Time went. Thereafter, the uncured portion was washed to obtain a printing plate for flexographic printing.

実施例１で用いた保護フィルムの替わりに、インク受容層を塗布したポリエチレンテレフタレートの保護フィルムを用いた以外は、実施例１と同様にしてフレキソ印刷用刷版を得た。 A flexographic printing plate was obtained in the same manner as in Example 1 except that a polyethylene terephthalate protective film coated with an ink receiving layer was used instead of the protective film used in Example 1.

従って、ＵＶ感光乳剤層上に保護フィルムを有するフレキソ印刷用刷版であって、ポジ画像あるいはネガ画像を該保護フィルム上にインクジェットプリンタにて印刷することにより、本発明を提供することが可能となった。保護フィルム上に、インク受容層を有することにより、より効果が得られた。 Accordingly, it is a flexographic printing plate having a protective film on a UV-sensitive emulsion layer, and the present invention can be provided by printing a positive image or a negative image on the protective film with an ink jet printer. became. By having the ink receiving layer on the protective film, a more effective effect was obtained.

Claims (3)

ＵＶ感光乳剤層上に保護フィルムを有するフレキソ印刷用刷版であって、ポジ画像あるいはネガ画像を該保護フィルム上に印刷する製版方法。 A printing plate for flexographic printing having a protective film on a UV-sensitive emulsion layer, wherein a positive image or a negative image is printed on the protective film. 請求項１記載の保護フィルム上に、インクジェットプリンタによりポジ画像あるいはネガ画像を印刷する製版方法。 A plate making method for printing a positive image or a negative image on the protective film according to claim 1 by an ink jet printer. 請求項１または請求項２記載の保護フィルム上に、インク受容層を有することを特徴とするフレキソ印刷用刷版。 A printing plate for flexographic printing, comprising an ink receiving layer on the protective film according to claim 1.
JP2004300847A 2004-10-15 2004-10-15 Flexographic printing plate and plate making method Pending JP2006113310A (en)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1010710A (en) * 1996-06-19 1998-01-16 Nippon Denshi Seiki Kk Plate making method for photosensitive resin relief printing plate without using photographic film
JPH11157194A (en) * 1997-11-26 1999-06-15 Matsushita Electric Ind Co Ltd Production of stamp plate face
JP2001058471A (en) * 1999-07-13 2001-03-06 Agfa Gevaert Nv Flexographic printing plate precursor containing ink-jet acceptable layer
JP2001521208A (en) * 1997-10-24 2001-11-06 ポリフアイブロン・テクノロジーズ・インコーポレーテツド Composite printing plate for letterpress printing of images
JP2002357907A (en) * 2001-03-06 2002-12-13 E I Du Pont De Nemours & Co Process for making flexographic printing plate and photosensitive element for use in the process
JP2003330158A (en) * 2002-03-22 2003-11-19 Agfa Gevaert Nv Method for preparing flexographic printing plate

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1010710A (en) * 1996-06-19 1998-01-16 Nippon Denshi Seiki Kk Plate making method for photosensitive resin relief printing plate without using photographic film
JP2001521208A (en) * 1997-10-24 2001-11-06 ポリフアイブロン・テクノロジーズ・インコーポレーテツド Composite printing plate for letterpress printing of images
JPH11157194A (en) * 1997-11-26 1999-06-15 Matsushita Electric Ind Co Ltd Production of stamp plate face
JP2001058471A (en) * 1999-07-13 2001-03-06 Agfa Gevaert Nv Flexographic printing plate precursor containing ink-jet acceptable layer
JP2002357907A (en) * 2001-03-06 2002-12-13 E I Du Pont De Nemours & Co Process for making flexographic printing plate and photosensitive element for use in the process
JP2003330158A (en) * 2002-03-22 2003-11-19 Agfa Gevaert Nv Method for preparing flexographic printing plate

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