JP2006111690A - Printing ink composition - Google Patents

Printing ink composition Download PDF

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Publication number
JP2006111690A
JP2006111690A JP2004298827A JP2004298827A JP2006111690A JP 2006111690 A JP2006111690 A JP 2006111690A JP 2004298827 A JP2004298827 A JP 2004298827A JP 2004298827 A JP2004298827 A JP 2004298827A JP 2006111690 A JP2006111690 A JP 2006111690A
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resin
chlorinated
parts
ink
acid
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Takashi Matsuda
尊 松田
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DIC Corp
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Dainippon Ink and Chemicals Co Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a chlorinated polypropylene gravure printing ink having excellent adhesiveness to polyolefin films such as polypropylene and good pigment dispersibility. <P>SOLUTION: The printing ink composition uses an acid-modified chlorinated polyolefin resin as a pigment-dispersing resin. The acid-modified chlorinated polyolefin resin is a chlorinated polypropylene having a molecular weight of 1,000-500,000 and a chlorination degree of 17-40%. In the printing ink composition, the acid component to be used for the acid modification preferably comprises maleic anhydride. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

本発明は、ポリプロピレン等のポリオレフィンフィルムに対する密着性に優れ、且つ顔料分散性の良好な、塩素化ポリプロピレン系グラビア印刷インキに関する。   The present invention relates to a chlorinated polypropylene gravure printing ink having excellent adhesion to a polyolefin film such as polypropylene and having good pigment dispersibility.

ポリプロピレン等のポリオレフィン系フィルムに意匠性の絵柄や文字等をグラビア印刷する際には、ポリウレタン系、ポリアミド/硝化綿系、塩素化ポリオレフィン系等のグラビアインキが使用されるが、フィルムへの密着性等の観点から、塩素化ポリプロピレン(以下塩素化PPと表記)系インキが幅広く使用されている。   Polyurethane-based, polyamide / nitrified cotton-based, chlorinated polyolefin-based gravure inks are used for gravure printing of design patterns and letters on polyolefin films such as polypropylene. In view of the above, chlorinated polypropylene (hereinafter referred to as chlorinated PP) inks are widely used.

塩素化PP系インキの主樹脂である塩素化PPは、ポリオレフィン系フィルムへの密着、PP押し出しラミネート強度においては他の樹脂を圧倒するものの、着色剤として使用される有機顔料や無機顔料等の分散性が悪いという欠点を有する。   Chlorinated PP, which is the main resin of chlorinated PP inks, disperses organic pigments and inorganic pigments used as colorants, while overwhelming other resins in terms of adhesion to polyolefin films and PP extrusion laminate strength. It has the disadvantage of poor properties.

この問題を解決するため、顔料の分散には、塩素化PPと相溶し、且つ顔料分散性が比較的良好な、エチレン−酢酸ビニル共重合樹脂(EVA)、塩化ビニル/ビニルイソブチルエーテル共重合樹脂、塩素化エチレン−酢酸ビニル共重合樹脂(塩素化EVA)等の樹脂が使用される。   In order to solve this problem, an ethylene-vinyl acetate copolymer resin (EVA) and a vinyl chloride / vinyl isobutyl ether copolymer, which are compatible with chlorinated PP and have relatively good pigment dispersibility, are used for pigment dispersion. Resins such as resin and chlorinated ethylene-vinyl acetate copolymer resin (chlorinated EVA) are used.

しかしながらこれらの樹脂を使用すると、ポリオレフィンフィルムへの密着性や、PP押し出しラミネート強度が低下したり、また、他の樹脂系インキ(ポリウレタン系、ポリアミド/硝化綿系等)に比べて顔料分散性が劣ったりするということが知られており、インキの設計上好ましくない。   However, when these resins are used, the adhesion to the polyolefin film, the PP extrusion laminate strength is reduced, and the pigment dispersibility is lower than that of other resin-based inks (polyurethane, polyamide / nitrified cotton, etc.). It is known that it is inferior, and is not preferable in terms of ink design.

即ち、ポリオレフィンフィルムへの密着性に優れ、且つ顔料分散性の良い塩素化PP系グラビアインキが求められている。   That is, a chlorinated PP gravure ink having excellent adhesion to a polyolefin film and good pigment dispersibility is required.

特許文献1には、高いポリプロピレン押し出しラミネーション強度を示す塩素化PP系インキの組成が記載されているが、顔料分散性に関することは記載されていない。   Patent Document 1 describes a composition of a chlorinated PP-based ink exhibiting high polypropylene extrusion lamination strength, but does not describe pigment dispersibility.

特許文献2には、印刷適性、印刷効果及びラミネート加工適性に優れた印刷インキとその製造方法が記載されている。該印刷インキは水性であり、この文献に記載されているマレイン酸等で変性した塩素化ポリオレフィンは水分散体であり、本発明における油性のインキに使用することは出来ない。   Patent Document 2 describes a printing ink excellent in printability, printing effect, and laminating suitability, and a method for producing the same. The printing ink is water-based, and the chlorinated polyolefin modified with maleic acid described in this document is an aqueous dispersion and cannot be used for the oil-based ink in the present invention.

特許文献3にはポリオレフィン基材に十分な密着性を有するコーティング樹脂組成物が記載されている。該文献の請求項1によれば、その樹脂組成物はカルボキシル基含有塩素化ポリオレフィンをポリオール樹脂とエステル化反応せしめて得られるものとされている。   Patent Document 3 describes a coating resin composition having sufficient adhesion to a polyolefin substrate. According to claim 1 of this document, the resin composition is obtained by esterifying a carboxyl group-containing chlorinated polyolefin with a polyol resin.

特開平5−320554号公報JP-A-5-320554 特開平10−1636号公報Japanese Patent Laid-Open No. 10-1636 特開2001−64396号公報JP 2001-64396 A

本発明の課題は、ポリプロピレン等のポリオレフィンフィルムに対する密着性に優れ、且つ顔料分散性の良好な、塩素化PP系グラビア印刷インキを提供することである。   An object of the present invention is to provide a chlorinated PP-based gravure printing ink having excellent adhesion to a polyolefin film such as polypropylene and having good pigment dispersibility.

本発明者らは、鋭意検討の結果、顔料分散樹脂に酸変性塩素化ポリオレフィン樹脂を使用した塩素化PP系グラビアインキが前記の課題を解決することを見出し、本発明を完成した。   As a result of intensive studies, the present inventors have found that a chlorinated PP-based gravure ink using an acid-modified chlorinated polyolefin resin as a pigment-dispersed resin solves the above-described problems, and has completed the present invention.

本発明のグラビアインキは、従来の塩素化EVAや塩化ビニル系樹脂、塩素化PP系樹脂を分散樹脂とした塩素化PP系インキに比較し優れた顔料分散性を示し、且つ、ポリプロピレン等のポリオレフィンフィルムに対する密着性が良好であるという効果を有する。   The gravure ink of the present invention exhibits excellent pigment dispersibility compared to conventional chlorinated EVA, vinyl chloride resin, and chlorinated PP ink using chlorinated PP resin as a dispersion resin, and polyolefin such as polypropylene. It has the effect that the adhesiveness with respect to a film is favorable.

本発明に使用する酸変性塩素化ポリオレフィン樹脂は塩素化ポリプロピレン樹脂を酸変性したものが好ましく、変性に使用する酸成分は無水マレイン酸が好ましい。   The acid-modified chlorinated polyolefin resin used in the present invention is preferably an acid-modified chlorinated polypropylene resin, and the acid component used for modification is preferably maleic anhydride.

酸変性した塩素化ポリプロピレン樹脂中のマレイン酸含有量は0.5重量%〜4.0重量%が好ましく、更に好ましくは1.0重量%〜2.0重量%である。   The maleic acid content in the acid-modified chlorinated polypropylene resin is preferably 0.5 wt% to 4.0 wt%, more preferably 1.0 wt% to 2.0 wt%.

ベースとなる塩素化ポリプロピレン樹脂の分子量は1,000〜500,000のものが好ましく、10,000〜200,000のものが更に好ましい。またその塩素化度は17〜40%のものが好ましい。   The molecular weight of the base chlorinated polypropylene resin is preferably 1,000 to 500,000, more preferably 10,000 to 200,000. The chlorination degree is preferably 17 to 40%.

分散助樹脂として、エチレン−酢酸ビニル共重合物(EVA)を使用しても良い。使用するEVA樹脂は、酢酸ビニル含有量が35〜45%、分子量が5,000〜20,000のものが好ましい。   An ethylene-vinyl acetate copolymer (EVA) may be used as the dispersion aid resin. The EVA resin used preferably has a vinyl acetate content of 35 to 45% and a molecular weight of 5,000 to 20,000.

インキ化時に使用する溶剤としては、トルエン等の芳香族系炭化水素、メチルシクロヘキサン等の脂環式炭化水素、酢酸エチル等のエステル類、メチルエチルケトン等のケトン類、イソプロピルアルコール、変性アルコール等のアルコール系溶剤やこれらの混合溶剤を用いる。また添加剤として、必要に応じて耐摩耗性向上のためのポリエチレンワックス、ブロッキング防止のための二酸化珪素等を添加しても良い。   Solvents used at the time of ink production include aromatic hydrocarbons such as toluene, alicyclic hydrocarbons such as methylcyclohexane, esters such as ethyl acetate, ketones such as methyl ethyl ketone, alcohols such as isopropyl alcohol and denatured alcohol A solvent or a mixed solvent thereof is used. As additives, polyethylene wax for improving wear resistance, silicon dioxide for preventing blocking, or the like may be added as necessary.

インキの印刷・塗布方法は、一般的なグラビアコート、シルクスクリーン、フレキソ等の任意の方式が用いられるが、例えば、グラビアコートが好ましく用いられる。   The ink printing / coating method may be any method such as general gravure coating, silk screen, flexo, etc. For example, gravure coating is preferably used.

印刷されたインキ皮膜の乾燥膜厚は、0.3〜5μmが好ましく、より好ましくは0.8〜2μmである。乾燥皮膜が厚すぎるとブロッキング(インキ皮膜面同士がくっつく)のトラブルを起こしやすい。   The dry film thickness of the printed ink film is preferably 0.3 to 5 μm, more preferably 0.8 to 2 μm. If the dry film is too thick, it can easily cause blocking problems.

以下に、実施例によって、本発明を具体的に説明する。尚、本明細書においては部及び%は特記しない限り質量基準である。   The present invention will be specifically described below with reference to examples. In the present specification, “part” and “%” are based on mass unless otherwise specified.

[実施例1](黄インキA−1)
(1)黄顔料(山陽色素株式会社製「ピグメントイエロー 1429」)
・・・10.0部。
(2)酸変性塩素化PP樹脂(日本製紙株式会社製「スーパークロンS−2240S」)
・・・10.0部。
(3)EVA樹脂(東ソー株式会社製「ウルトラセン760」)・・・1.5部。
(4)混合溶剤(トルエン/酢酸エチル/メチルエチルケトン=5/3/2)
・・・58.5部。
(5)塩素化PP樹脂(日本製紙株式会社製「スーパークロン834D」)
・・・20.0部。
上記(1)〜(4)を混合してサンドミルにて顔料を分散した後、(5)を加えて黄インキA−1を得た。
[Example 1] (Yellow Ink A-1)
(1) Yellow pigment (“Pigment Yellow 1429” manufactured by Sanyo Dyeing Co., Ltd.)
... 10.0 parts.
(2) Acid-modified chlorinated PP resin (“Supercron S-2240S” manufactured by Nippon Paper Industries Co., Ltd.)
... 10.0 parts.
(3) EVA resin (“Ultrasen 760” manufactured by Tosoh Corporation) 1.5 parts.
(4) Mixed solvent (toluene / ethyl acetate / methyl ethyl ketone = 5/3/2)
... 58.5 parts.
(5) Chlorinated PP resin ("Supercron 834D" manufactured by Nippon Paper Industries Co., Ltd.)
... 20.0 parts.
After mixing said (1)-(4) and disperse | distributing a pigment with a sand mill, (5) was added and yellow ink A-1 was obtained.

[実施例2](紅インキA−2)
(1)紅顔料(大日本インキ化学工業株式会社製「SYMULAR RED 3090」)
・・・10.0部。
(2)酸変性塩素化PP樹脂(日本製紙株式会社製「スーパークロンS−2240S」)
・・・10.0部。
(3)EVA樹脂(東ソー株式会社製「ウルトラセン760」)
・・・1.5部。
(4)混合溶剤(トルエン/酢酸エチル/メチルエチルケトン=5/3/2)
・・・58.5部。
(5)塩素化PP樹脂(日本製紙株式会社製「スーパークロン834D」)
・・・20.0部。
上記(1)〜(4)を混合してサンドミルにて顔料を分散した後、(5)を加えて紅インキA−2を得た。
[Example 2] (Red ink A-2)
(1) Red pigment ("SYMULAR RED 3090" manufactured by Dainippon Ink & Chemicals, Inc.)
... 10.0 parts.
(2) Acid-modified chlorinated PP resin (“Supercron S-2240S” manufactured by Nippon Paper Industries Co., Ltd.)
... 10.0 parts.
(3) EVA resin (“Ultrasen 760” manufactured by Tosoh Corporation)
... 1.5 parts.
(4) Mixed solvent (toluene / ethyl acetate / methyl ethyl ketone = 5/3/2)
... 58.5 parts.
(5) Chlorinated PP resin ("Super Clone 834D" manufactured by Nippon Paper Industries Co., Ltd.)
... 20.0 parts.
After mixing the above (1) to (4) and dispersing the pigment in a sand mill, (5) was added to obtain red ink A-2.

[実施例3](藍インキA−3)
(1)藍顔料(山陽色素株式会社製「シアニンブルー 4031」)・・・10.0部。
(2)酸変性塩素化PP樹脂(日本製紙株式会社製「スーパークロンS−2240S」)
・・・10.0部。
(3)EVA樹脂(東ソー株式会社製「ウルトラセン760」)・・・1.5部。
(4)混合溶剤(トルエン/酢酸エチル/メチルエチルケトン=5/3/2)
・・・58.5部。
(5)塩素化PP樹脂(日本製紙株式会社製「スーパークロン834D」)
・・・20.0部。
上記(1)〜(4)を混合してサンドミルにて顔料を分散した後、(5)を加えて藍インキA−3を得た。
[Example 3] (Indigo ink A-3)
(1) Indigo pigment ("Cyanine Blue 4031" manufactured by Sanyo Dyeing Co., Ltd.) ... 10.0 parts.
(2) Acid-modified chlorinated PP resin (“Supercron S-2240S” manufactured by Nippon Paper Industries Co., Ltd.)
... 10.0 parts.
(3) EVA resin (“Ultrasen 760” manufactured by Tosoh Corporation) 1.5 parts.
(4) Mixed solvent (toluene / ethyl acetate / methyl ethyl ketone = 5/3/2)
... 58.5 parts.
(5) Chlorinated PP resin ("Super Clone 834D" manufactured by Nippon Paper Industries Co., Ltd.)
... 20.0 parts.
After mixing said (1)-(4) and disperse | distributing a pigment with a sand mill, (5) was added and indigo ink A-3 was obtained.

[実施例4](白インキA−4)
(1)白顔料(テイカ株式会社製「JR−805」)・・・30.0部。
(2)酸変性塩素化PP樹脂(日本製紙株式会社製「スーパークロンS−2240S」)
・・・5.0部。
(3)EVA樹脂(東ソー株式会社製「ウルトラセン760」)・・・1.5部。
(4)混合溶剤(トルエン/酢酸エチル/メチルエチルケトン=5/3/2)
・・・43.5部。
(5)塩素化PP樹脂(日本製紙株式会社製「スーパークロンE」)・・・20.0部。
上記(1)〜(4)を混合してサンドミルにて顔料を分散した後、(5)を加えて白インキA−4を得た。
[Example 4] (White ink A-4)
(1) White pigment (“JR-805” manufactured by Teika Co., Ltd.) 30.0 parts.
(2) Acid-modified chlorinated PP resin (“Supercron S-2240S” manufactured by Nippon Paper Industries Co., Ltd.)
... 5.0 parts.
(3) EVA resin (“Ultrasen 760” manufactured by Tosoh Corporation) 1.5 parts.
(4) Mixed solvent (toluene / ethyl acetate / methyl ethyl ketone = 5/3/2)
... 43.5 parts.
(5) Chlorinated PP resin (“Supercron E” manufactured by Nippon Paper Industries Co., Ltd.) 20.0 parts.
After mixing the above (1) to (4) and dispersing the pigment with a sand mill, (5) was added to obtain white ink A-4.

[比較例1](黄インキB−1)
(1)黄顔料(山陽色素株式会社製「ピグメントイエロー 1429」)・・・10.0部。
(2)塩化ビニル/ビニルイソブチルエーテル樹脂
(BASF社製「ラロフレックスMP40」)・・・5.0部。
(3)塩素化EVA樹脂(東洋化成工業株式会社製「ハードレン10EV」)・・・25.0部。
(4)EVA樹脂(東ソー株式会社製「ウルトラセン760」)・・・1.5部。
(5)混合溶剤(トルエン/酢酸エチル/メチルエチルケトン=5/3/2)
・・・48.5部。
(6)塩素化PP樹脂(日本製紙株式会社製「スーパークロン834D」)
・・・20.0部。
上記(1)〜(5)を混合してサンドミルにて顔料を分散した後、(6)を加えて黄インキB−1を得た。
[Comparative Example 1] (Yellow Ink B-1)
(1) Yellow pigment ("Pigment Yellow 1429" manufactured by Sanyo Color Co., Ltd.) ... 10.0 parts.
(2) Vinyl chloride / vinyl isobutyl ether resin
(BASF "Laroflex MP40") ... 5.0 parts.
(3) Chlorinated EVA resin (“Hardlen 10EV” manufactured by Toyo Kasei Kogyo Co., Ltd.) 25.0 parts.
(4) EVA resin (“Ultrasen 760” manufactured by Tosoh Corporation) 1.5 parts.
(5) Mixed solvent (toluene / ethyl acetate / methyl ethyl ketone = 5/3/2)
... 48.5 parts.
(6) Chlorinated PP resin ("Supercron 834D" manufactured by Nippon Paper Industries Co., Ltd.)
... 20.0 parts.
After mixing the above (1) to (5) and dispersing the pigment with a sand mill, (6) was added to obtain yellow ink B-1.

[比較例2](紅インキB−2)
(1)紅顔料(大日本インキ化学工業株式会社製「SYMULAR RED 3090」) ・・・10.0部。
(2)塩化ビニル/ビニルイソブチルエーテル樹脂
(BASF社製「ラロフレックスMP40」)・・・5.0部。
(3)塩素化EVA樹脂(東洋化成工業株式会社製「ハードレン10EV」)・・・25.0部。
(4)EVA樹脂(東ソー株式会社製「ウルトラセン760」)・・・1.5部。
(5)混合溶剤(トルエン/酢酸エチル/メチルエチルケトン=5/3/2)
・・・48.5部。
(6)塩素化PP樹脂(日本製紙株式会社製「スーパークロン834D」)
・・・20.0部。
上記(1)〜(5)を混合してサンドミルにて顔料を分散した後、(6)を加えて紅インキB−2を得た。
[Comparative Example 2] (Red ink B-2)
(1) Red pigment ("SYMULAR RED 3090" manufactured by Dainippon Ink & Chemicals, Inc.) ... 10.0 parts.
(2) Vinyl chloride / vinyl isobutyl ether resin ("Laroflex MP40" manufactured by BASF) ... 5.0 parts.
(3) Chlorinated EVA resin (“Hardlen 10EV” manufactured by Toyo Kasei Kogyo Co., Ltd.) 25.0 parts.
(4) EVA resin (“Ultrasen 760” manufactured by Tosoh Corporation) 1.5 parts.
(5) Mixed solvent (toluene / ethyl acetate / methyl ethyl ketone = 5/3/2)
... 48.5 parts.
(6) Chlorinated PP resin ("Supercron 834D" manufactured by Nippon Paper Industries Co., Ltd.)
... 20.0 parts.
After mixing the above (1) to (5) and dispersing the pigment with a sand mill, (6) was added to obtain red ink B-2.

[比較例3](藍インキB−3)
(1)藍顔料(山陽色素株式会社製「シアニンブルー 4031」)・・・10.0部。
(2)塩化ビニル/ビニルイソブチルエーテル樹脂
(BASF社製「ラロフレックスMP40」)・・・5.0部。
(3)塩素化EVA樹脂(東洋化成工業株式会社製「ハードレン10EV」)・・・25.0部。
(4)EVA樹脂(東ソー株式会社製「ウルトラセン760」)・・・1.5部。
(5)混合溶剤(トルエン/酢酸エチル/メチルエチルケトン=5/3/2)
・・・48.5部。
(6)塩素化PP樹脂(日本製紙株式会社製「スーパークロン834D」)
・・・20.0部。
上記(1)〜(5)を混合してサンドミルにて顔料を分散した後、(6)を加えて紅インキB−3を得た。
[Comparative Example 3] (Indigo Ink B-3)
(1) Indigo pigment ("Cyanine Blue 4031" manufactured by Sanyo Dyeing Co., Ltd.) ... 10.0 parts.
(2) Vinyl chloride / vinyl isobutyl ether resin ("Laroflex MP40" manufactured by BASF) ... 5.0 parts.
(3) Chlorinated EVA resin (“Hardlen 10EV” manufactured by Toyo Kasei Kogyo Co., Ltd.) 25.0 parts.
(4) EVA resin (“Ultrasen 760” manufactured by Tosoh Corporation) 1.5 parts.
(5) Mixed solvent (toluene / ethyl acetate / methyl ethyl ketone = 5/3/2)
... 48.5 parts.
(6) Chlorinated PP resin ("Supercron 834D" manufactured by Nippon Paper Industries Co., Ltd.)
... 20.0 parts.
After mixing the above (1) to (5) and dispersing the pigment with a sand mill, (6) was added to obtain red ink B-3.

[比較例4](白インキB−4)
(1)白顔料(テイカ株式会社製「JR−805」)・・・30.0部。
(2)塩素化EVA樹脂(東洋化成工業株式会社製「ハードレン10EV」)・・・25.0部。
(3)EVA樹脂(東ソー株式会社製「ウルトラセン760」)・・・1.5部。
(4)混合溶剤(トルエン/酢酸エチル/メチルエチルケトン=5/3/2)
・・・23.5部。
(5)塩素化PP樹脂(日本製紙株式会社製「スーパークロン834D」)
・・・20.0部。
上記(1)〜(4)を混合してサンドミルにて顔料を分散した後、(5)を加えて白インキB−4を得た。
[Comparative Example 4] (White ink B-4)
(1) White pigment (Taika Co., Ltd. “JR-805”) 30.0 parts.
(2) Chlorinated EVA resin (“Hardlen 10EV” manufactured by Toyo Kasei Kogyo Co., Ltd.) 25.0 parts.
(3) EVA resin (“Ultrasen 760” manufactured by Tosoh Corporation) 1.5 parts.
(4) Mixed solvent (toluene / ethyl acetate / methyl ethyl ketone = 5/3/2)
... 23.5 parts.
(5) Chlorinated PP resin ("Super Clone 834D" manufactured by Nippon Paper Industries Co., Ltd.)
... 20.0 parts.
After mixing the above (1) to (4) and dispersing the pigment with a sand mill, (5) was added to obtain white ink B-4.

[評価試験1:発色及びガラス瓶壁面状態の観察(分散性の確認)]
上記で得たインキ組成物A−1〜A−4及びB−1〜B−4を、それぞれ混合溶剤(トルエン/酢酸エチル/メチルエチルケトン=5/3/2)にて30%希釈し、処理OPPフィルム上にバーコーター#6を用いて展色し、その発色具合を目視評価した。また、残インキをガラス瓶に入れて常温で3日間保管し、ガラス壁面に付着したインキの付着ムラ状態を目視観察した。結果を表1に示す。
[Evaluation Test 1: Observation of Color Development and Glass Bottle Wall State (Confirmation of Dispersibility)]
The ink compositions A-1 to A-4 and B-1 to B-4 obtained above were each diluted 30% with a mixed solvent (toluene / ethyl acetate / methyl ethyl ketone = 5/3/2), and treated OPP. The color was developed on the film using a bar coater # 6, and the color development was visually evaluated. The residual ink was put in a glass bottle and stored at room temperature for 3 days, and the adhesion unevenness state of the ink adhered to the glass wall surface was visually observed. The results are shown in Table 1.

Figure 2006111690
Figure 2006111690

表1の備考・・・評価は5段階評価 5(良)←→(悪)1
表1に示す様に、実施例A−1〜A−4は、比較例B−1〜B−4に比べていずれも発色が良好であり、また、ガラス瓶壁面の付着ムラ状態も同様に良好である。このことから、発明品の顔料分散性が良好であるということが確認された。
Remarks in Table 1… Evaluation is based on 5 levels 5 (good) ← → (bad) 1
As shown in Table 1, Examples A-1 to A-4 all have better color development than Comparative Examples B-1 to B-4, and the uneven adhesion state on the glass bottle wall surface is also good. It is. From this, it was confirmed that the pigment dispersibility of the inventive product was good.

[評価試験2:密着性の確認]
上記で得たインキ組成物A−1〜A−4及びB−1〜B−4を、それぞれ混合溶剤(トルエン/酢酸エチル/メチルエチルケトン=5/3/2)にて30%希釈し、未処理CPPフィルム上にバーコーター#6を用いて展色し、セロハン粘着テープを用い、同一箇所を3回剥離して、フィルムへの密着性を確認した。結果を表2に示す。
[Evaluation Test 2: Confirmation of Adhesion]
The ink compositions A-1 to A-4 and B-1 to B-4 obtained above were each diluted 30% with a mixed solvent (toluene / ethyl acetate / methyl ethyl ketone = 5/3/2), and untreated. The color was developed on the CPP film using a bar coater # 6, and the same part was peeled off three times using a cellophane adhesive tape to confirm the adhesion to the film. The results are shown in Table 2.

Figure 2006111690
Figure 2006111690

表2の備考・・・評価は5段階評価 5(良)←→(悪)1
表2に示す様に、実施例A−1〜A−4は、比較例B−1〜B−4に比べていずれも未処理CPPフィルムに対する密着性が良好であということが確認された。
Remarks in Table 2 ... Evaluation is a five-level evaluation 5 (good) ← → (bad) 1
As shown in Table 2, it was confirmed that Examples A-1 to A-4 all had better adhesion to the untreated CPP film than Comparative Examples B-1 to B-4.

評価試験1及び2より、本発明のグラビアインキは、従前のものと比較して顔料分散性が良好で、且つ密着性が良好なグラビアインキと言える。

From the evaluation tests 1 and 2, it can be said that the gravure ink of the present invention is a gravure ink having better pigment dispersibility and better adhesion than the conventional one.

Claims (4)

顔料分散樹脂に、酸変性塩素化ポリオレフィン樹脂を用いることを特徴とする印刷インキ組成物。   A printing ink composition comprising an acid-modified chlorinated polyolefin resin as a pigment dispersion resin. 顔料分散に用いられる塩素化ポリオレフィン樹脂が、分子量1,000〜500,000で、且つ塩素化度が17〜40%の塩素化ポリプロピレンである、請求項1に記載の印刷インキ組成物。   The printing ink composition according to claim 1, wherein the chlorinated polyolefin resin used for pigment dispersion is a chlorinated polypropylene having a molecular weight of 1,000 to 500,000 and a chlorination degree of 17 to 40%. 酸変性に用いられる酸成分に無水マレイン酸が含まれる請求項1に記載の印刷インキ組成物。   The printing ink composition according to claim 1, wherein maleic anhydride is contained in the acid component used for acid modification. 酸変性した塩素化ポリオレフィン樹脂中のマレイン酸含有量が0.5〜4.0質量%である請求項3に記載の印刷インキ組成物。
The printing ink composition according to claim 3, wherein the content of maleic acid in the acid-modified chlorinated polyolefin resin is 0.5 to 4.0% by mass.
JP2004298827A 2004-10-13 2004-10-13 Printing ink composition Pending JP2006111690A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103265840A (en) * 2013-05-31 2013-08-28 苏州凹凸彩印厂 Bright red gravure printing ink and preparation method thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103265840A (en) * 2013-05-31 2013-08-28 苏州凹凸彩印厂 Bright red gravure printing ink and preparation method thereof

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