JP2004181750A - Barrel member for can and its production method - Google Patents
Barrel member for can and its production method Download PDFInfo
- Publication number
- JP2004181750A JP2004181750A JP2002350862A JP2002350862A JP2004181750A JP 2004181750 A JP2004181750 A JP 2004181750A JP 2002350862 A JP2002350862 A JP 2002350862A JP 2002350862 A JP2002350862 A JP 2002350862A JP 2004181750 A JP2004181750 A JP 2004181750A
- Authority
- JP
- Japan
- Prior art keywords
- ultraviolet curable
- body member
- layer
- size ink
- printing ink
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 18
- 238000007639 printing Methods 0.000 claims abstract description 57
- 239000010410 layer Substances 0.000 claims abstract description 52
- 229910052751 metal Inorganic materials 0.000 claims abstract description 33
- 239000002184 metal Substances 0.000 claims abstract description 33
- 239000000758 substrate Substances 0.000 claims abstract description 24
- 239000011247 coating layer Substances 0.000 claims abstract description 21
- 238000005304 joining Methods 0.000 claims abstract description 11
- 239000003973 paint Substances 0.000 claims description 25
- 239000000203 mixture Substances 0.000 claims description 19
- 239000000178 monomer Substances 0.000 claims description 15
- 239000000463 material Substances 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 10
- 230000001678 irradiating effect Effects 0.000 claims description 9
- 230000002093 peripheral effect Effects 0.000 claims description 9
- 230000002411 adverse Effects 0.000 abstract description 4
- 239000000976 ink Substances 0.000 description 82
- 238000000576 coating method Methods 0.000 description 8
- 238000013461 design Methods 0.000 description 8
- 238000010017 direct printing Methods 0.000 description 6
- 235000013305 food Nutrition 0.000 description 6
- 238000003466 welding Methods 0.000 description 6
- 239000011248 coating agent Substances 0.000 description 5
- 235000013361 beverage Nutrition 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- INQDDHNZXOAFFD-UHFFFAOYSA-N 2-[2-(2-prop-2-enoyloxyethoxy)ethoxy]ethyl prop-2-enoate Chemical compound C=CC(=O)OCCOCCOCCOC(=O)C=C INQDDHNZXOAFFD-UHFFFAOYSA-N 0.000 description 2
- 241001474374 Blennius Species 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- 241001122767 Theaceae Species 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 2
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 description 2
- 235000009508 confectionery Nutrition 0.000 description 2
- 235000014510 cooky Nutrition 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 2
- 229910052753 mercury Inorganic materials 0.000 description 2
- 238000007781 pre-processing Methods 0.000 description 2
- 238000002203 pretreatment Methods 0.000 description 2
- 230000001954 sterilising effect Effects 0.000 description 2
- 238000004659 sterilization and disinfection Methods 0.000 description 2
- 235000013616 tea Nutrition 0.000 description 2
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 2
- 229920002554 vinyl polymer Polymers 0.000 description 2
- 229910052725 zinc Inorganic materials 0.000 description 2
- 239000011701 zinc Substances 0.000 description 2
- KWVGIHKZDCUPEU-UHFFFAOYSA-N 2,2-dimethoxy-2-phenylacetophenone Chemical compound C=1C=CC=CC=1C(OC)(OC)C(=O)C1=CC=CC=C1 KWVGIHKZDCUPEU-UHFFFAOYSA-N 0.000 description 1
- FTALTLPZDVFJSS-UHFFFAOYSA-N 2-(2-ethoxyethoxy)ethyl prop-2-enoate Chemical compound CCOCCOCCOC(=O)C=C FTALTLPZDVFJSS-UHFFFAOYSA-N 0.000 description 1
- ZUAURMBNZUCEAF-UHFFFAOYSA-N 2-(2-phenoxyethoxy)ethanol Chemical compound OCCOCCOC1=CC=CC=C1 ZUAURMBNZUCEAF-UHFFFAOYSA-N 0.000 description 1
- HWSSEYVMGDIFMH-UHFFFAOYSA-N 2-[2-[2-(2-methylprop-2-enoyloxy)ethoxy]ethoxy]ethyl 2-methylprop-2-enoate Chemical compound CC(=C)C(=O)OCCOCCOCCOC(=O)C(C)=C HWSSEYVMGDIFMH-UHFFFAOYSA-N 0.000 description 1
- XMLYCEVDHLAQEL-UHFFFAOYSA-N 2-hydroxy-2-methyl-1-phenylpropan-1-one Chemical compound CC(C)(O)C(=O)C1=CC=CC=C1 XMLYCEVDHLAQEL-UHFFFAOYSA-N 0.000 description 1
- ROPDSOYFYJCSTC-UHFFFAOYSA-N 2-phenoxyundecyl prop-2-enoate Chemical compound CCCCCCCCCC(COC(=O)C=C)OC1=CC=CC=C1 ROPDSOYFYJCSTC-UHFFFAOYSA-N 0.000 description 1
- FIHBHSQYSYVZQE-UHFFFAOYSA-N 6-prop-2-enoyloxyhexyl prop-2-enoate Chemical compound C=CC(=O)OCCCCCCOC(=O)C=C FIHBHSQYSYVZQE-UHFFFAOYSA-N 0.000 description 1
- 239000004925 Acrylic resin Substances 0.000 description 1
- 229920000178 Acrylic resin Polymers 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910001335 Galvanized steel Inorganic materials 0.000 description 1
- WOBHKFSMXKNTIM-UHFFFAOYSA-N Hydroxyethyl methacrylate Chemical compound CC(=C)C(=O)OCCO WOBHKFSMXKNTIM-UHFFFAOYSA-N 0.000 description 1
- WHNWPMSKXPGLAX-UHFFFAOYSA-N N-Vinyl-2-pyrrolidone Chemical compound C=CN1CCCC1=O WHNWPMSKXPGLAX-UHFFFAOYSA-N 0.000 description 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- DAKWPKUUDNSNPN-UHFFFAOYSA-N Trimethylolpropane triacrylate Chemical compound C=CC(=O)OCC(CC)(COC(=O)C=C)COC(=O)C=C DAKWPKUUDNSNPN-UHFFFAOYSA-N 0.000 description 1
- OKKRPWIIYQTPQF-UHFFFAOYSA-N Trimethylolpropane trimethacrylate Chemical compound CC(=C)C(=O)OCC(CC)(COC(=O)C(C)=C)COC(=O)C(C)=C OKKRPWIIYQTPQF-UHFFFAOYSA-N 0.000 description 1
- JUDXBRVLWDGRBC-UHFFFAOYSA-N [2-(hydroxymethyl)-3-(2-methylprop-2-enoyloxy)-2-(2-methylprop-2-enoyloxymethyl)propyl] 2-methylprop-2-enoate Chemical compound CC(=C)C(=O)OCC(CO)(COC(=O)C(C)=C)COC(=O)C(C)=C JUDXBRVLWDGRBC-UHFFFAOYSA-N 0.000 description 1
- HVVWZTWDBSEWIH-UHFFFAOYSA-N [2-(hydroxymethyl)-3-prop-2-enoyloxy-2-(prop-2-enoyloxymethyl)propyl] prop-2-enoate Chemical compound C=CC(=O)OCC(CO)(COC(=O)C=C)COC(=O)C=C HVVWZTWDBSEWIH-UHFFFAOYSA-N 0.000 description 1
- 150000001252 acrylic acid derivatives Chemical class 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 229920000180 alkyd Polymers 0.000 description 1
- XYLMUPLGERFSHI-UHFFFAOYSA-N alpha-Methylstyrene Chemical compound CC(=C)C1=CC=CC=C1 XYLMUPLGERFSHI-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 239000012965 benzophenone Substances 0.000 description 1
- 150000008366 benzophenones Chemical class 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 239000002537 cosmetic Substances 0.000 description 1
- 239000003599 detergent Substances 0.000 description 1
- 238000003618 dip coating Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- UHESRSKEBRADOO-UHFFFAOYSA-N ethyl carbamate;prop-2-enoic acid Chemical compound OC(=O)C=C.CCOC(N)=O UHESRSKEBRADOO-UHFFFAOYSA-N 0.000 description 1
- 239000008397 galvanized steel Substances 0.000 description 1
- 239000003999 initiator Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 150000002576 ketones Chemical class 0.000 description 1
- 229910001507 metal halide Inorganic materials 0.000 description 1
- 150000005309 metal halides Chemical class 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000003504 photosensitizing agent Substances 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920001225 polyester resin Polymers 0.000 description 1
- 239000004645 polyester resin Substances 0.000 description 1
- 229920005862 polyol Polymers 0.000 description 1
- -1 polyols acrylate Chemical class 0.000 description 1
- 229940088417 precipitated calcium carbonate Drugs 0.000 description 1
- KCTAWXVAICEBSD-UHFFFAOYSA-N prop-2-enoyloxy prop-2-eneperoxoate Chemical compound C=CC(=O)OOOC(=O)C=C KCTAWXVAICEBSD-UHFFFAOYSA-N 0.000 description 1
- 150000004053 quinones Chemical class 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- RSVDRWTUCMTKBV-UHFFFAOYSA-N sbb057044 Chemical compound C12CC=CC2C2CC(OCCOC(=O)C=C)C1C2 RSVDRWTUCMTKBV-UHFFFAOYSA-N 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 239000005029 tin-free steel Substances 0.000 description 1
- 239000005028 tinplate Substances 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- 229910052724 xenon Inorganic materials 0.000 description 1
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 description 1
Images
Landscapes
- Containers Having Bodies Formed In One Piece (AREA)
- Laminated Bodies (AREA)
Abstract
Description
【０００１】
【発明の属する技術分野】
本発明は、３ピース缶に使用される、金属基材上に下地塗料層及び紫外線硬化型インキ層を積層した缶用胴部材に関する。
【０００２】
【従来の技術】
各種飲料やレトルト食品、或いは海苔、お茶、キャンデー、クッキー等の食品等を収納する、胴部、蓋、底からなる３ピース缶の胴部材としては、表面に文字、図柄等を印刷した金属薄板が使用される。
このような缶用胴部材は、缶構成時に接合部となる金属基板の周縁部を除いた基板全面に、ホワイトコーティング等を施して下地塗料層を形成し、この上に文字、図柄等を印刷して製造される。
【０００３】
近年、印刷の能率を改善し、装置の簡略化や作業時間の短縮を図るために、前記下地塗料層上に文字や図柄等を印刷する際に、印刷後紫外線を数秒間照射するだけで容易に硬化する紫外線硬化型インキ（以下、「ＵＶ印刷インキ」と略記することがある）が広く使用されるようになった。（例えば、特許文献１〜３参照。）
【０００４】
【特許文献１】
特公昭５７−５２７２号公報
【特許文献２】
特開平１１−７６９３０号公報
【特許文献３】
特開２００２−１０５３９２号公報
【０００５】
しかしながら、下地塗料層上に単にＵＶ印刷インキにより文字や図柄等を印刷した場合には、図３の（Ｂ）にみられるように、金属基材１２の周縁部１６上に直接ＵＶ印刷インキが印刷された部分１７が形成される。
そして、このようなＵＶ印刷インキ直接印刷部１７を有する金属基材に紫外線を照射してＵＶ印刷インキ層１５を硬化させた後に、得られた缶用胴部材１１の端部同士や、缶用胴部材と蓋又は底部材とを溶接等により接合して製缶する際に、缶用胴部材周縁部のＵＶ印刷インキ直接印刷部１７が剥離し、この部分からＵＶ印刷インキ層１５が欠落するという問題点がある。
【０００６】
このようなＵＶ印刷インキ直接印刷部の剥離を防止する方法としては、（１）製缶前に缶用胴部材を加熱処理（空焼き）する、（２）製缶前に缶用胴部材に放電加工等の表面処理を施こす、等の前処理方法が考えられる。
しかしながら、缶用胴部材を構成する金属基材の種類によっては、このような前処理方法を採用してもＵＶ印刷インキ層の剥離を防止することは困難である。また、放電加工時にはオゾンが発生し、缶用胴部材表面に形成したＵＶ印刷インキ層を損傷させるとともに、周辺機器の酸化や人体への悪影響を及ぼすおそれがある。そして、これらの前処理方法を採用した場合には、製缶工程が増加し、高価な前処理装置の導入やエネルギー消費量の増大等により、製造コストが高くなるという欠点がある。
【０００７】
【発明が解決しようとする課題】
したがって、本発明はこのような従来技術の問題点を解消し、製缶工程において、金属基材上の下地塗料層に積層した紫外線硬化型印刷インキ層が周縁部から剥離し欠落することを防止するとともに、コストアップや環境への悪影響を生じない缶用胴部材及びその製造方法を提供することを目的とする。
【０００８】
【課題を解決するための手段】
本発明では、前記課題を解決するために、つぎのような構成を採用する。
１．矩形状の金属基材上に下地塗料層及び紫外線硬化型印刷インキ層を積層した缶用胴部材において、下地塗料層の端縁部と接合用無地部との境界に紫外線硬化型サイズインキ塗布部を形成し、前記下地塗料層及び前記紫外線硬化型サイズインキ塗布部上に紫外線硬化型印刷インキ層を設けたことを特徴とする缶用胴部材。
２．前記紫外線硬化型サイズインキ塗布部がサイズインキ組成物全体を基準として３〜１０重量％の紫外線硬化型モノマーを含有する紫外線硬化型サイズインキ組成物を塗布後、紫外線を照射して硬化させたものであることを特徴とする１に記載の缶用胴部材。
３．前記紫外線硬化型サイズインキ塗布部を缶用胴部材の両方の短辺の側端部と、少なくとも一方の長辺の側端部に帯状に形成したことを特徴とする１又は２に記載の缶用胴部材。
４．矩形状の金属基材に接合用無地部となる周縁部を残して下地塗料層を設け、下地塗料層の端縁部と接合用無地部との境界に紫外線硬化型サイズインキを塗布後紫外線を照射してサイズインキ塗布部を硬化させ、前記下地塗料層及び前記サイズインキ塗布部上に紫外線硬化型印刷インキ層を塗布後紫外線を照射して印刷インキ層を硬化させることを特徴とする缶用胴部材の製造方法。
５．前記紫外線硬化型サイズインキとして、サイズインキ組成物全体を基準として３〜１０重量％の紫外線硬化型モノマーを含有する、紫外線硬化型サイズインキ組成物を使用することを特徴とする４に記載の缶用胴部材の製造方法。
６．前記紫外線硬化型サイズインキ塗布部を缶用胴部材の両方の短辺の側端部と、少なくとも一方の長辺の側端部に帯状に形成したことを特徴とする４又は５に記載の缶用胴部材の製造方法。
７．１〜３のいずれかに記載の缶用胴部材により胴部を構成した缶。
【０００９】
【発明の実施の形態】
以下、図面を参照しながら本発明の缶用胴部材及びその製造方法について、詳細に説明する。
図１及び図２は本発明の缶用胴部材及びその製造方法を説明する模式図であり、図１は缶用胴部材にＵＶ印刷インキ層を塗布する前の状態を示す模式平面図、また図２は図１の缶用胴部材の表面にＵＶ印刷インキ層を塗布した後の、図１のＡＡ線における断面の模式図である。そして、図３は従来の技術による缶用胴部材の製造方法を説明する断面模式図である。
【００１０】
本発明の缶用胴部材１を製造するには、矩形状の金属基板２の上に、接合用無地部６となる周縁部を残してホワイトコーティング等により下地塗料層３を設ける。つぎに、下地塗料層３の端縁部と接合用無地部６との境界に紫外線硬化型サイズインキ（以下、「ＵＶサイズインキ」と略記することがある）を塗布後、紫外線を照射してＵＶサイズインキ塗布部４を硬化させる（図１参照）。さらに、下地塗料層３及びＵＶサイズインキ塗布部４の上にＵＶ印刷インキ層５を塗布して文字や図柄を形成し（図２参照）、紫外線を照射してＵＶ印刷インキ層５を硬化させて、缶用胴部材１を得る。
【００１１】
図３の（Ａ）、（Ｂ）にみられる従来技術のように、金属基材１２に下地塗料層１３を設け、この下地塗料層１３上に直接ＵＶ印刷インキ層１５を塗布して文字や図柄を印刷した場合には、金属基板１２の周縁部の接合用無地部１６と下地塗料層１３の端縁部の境界において、接合用無地部１６上に直接ＵＶインキ１５が印刷された部分１７が形成される。
このようなＵＶ印刷インキ直接印刷部１７では、紫外線を照射してＵＶ印刷インキ層１５を硬化させた後にも、基材１２とＵＶ印刷インキ層との接着性が充分ではなく、缶用胴部材１１の端部同士や、缶用胴部材と蓋又は底部材とを溶接等により接合して製缶する際に、このＵＶ印刷インキ直接印刷部１７からＵＶ印刷インキ層１５が剥離し、欠落するとういう問題があった。
【００１２】
これに対して、本発明の缶用胴部材１では、図１にみられるように、下地塗料層３の端縁部と基材２の接合用無地部６との境界にはＵＶサイズインキ塗布部４が設けられているので、缶用胴部材１の表面に形成されるＵＶ印刷インキ層５は、この部分でも金属基板２には直接接触していない（図２参照）。したがって、次の製缶工程において、缶用胴部材１の端部同士や、缶用胴部材１と蓋又は底部材とを溶接等により接合する際にも、印刷インキ層５と基材２との接着性が低下せず、印刷インキ層５が剥離し欠落するのを防止することができる。また、得られた金属缶に各種飲料やレトルト食品等を充填後密封し、レトルト殺菌処理をする際にも、ＵＶ印刷インキ層５が端縁部から剥離し欠落するのを防止することができる。
【００１３】
本発明の缶用胴部材を構成する金属基材としては特に制限はなく、例えばブリキ、アルミニウム、ティンフリースチール、鉄、亜鉛、銅、亜鉛メッキ鋼板、亜鉛と他の金属との合金メッキ鋼板等、通常金属缶に用いられる材料はいずれも使用することができる。
また、製缶工程における缶用胴部材の接合方法にも特に制限はなく、溶接、ハンダづけ、接着等種々の方法が使用できるが、特に溶接による製缶工程に好適に使用される。
【００１４】
金属基材上に設ける下地塗料層を構成する下地塗料としては、一般にホワイトコーティング等に用いられる塗料組成物を使用することができる。
このような下地塗料としては、例えばアクリル樹脂塗料、ビニル樹脂塗料、エポキシ樹脂塗料、アルキド樹脂塗料、ポリエステル樹脂塗料等が挙げられる。
【００１５】
下地塗料層の端縁部と金属基材の接合用無地部との境界に塗布するＵＶサイズインキとしては、二酸化チタン、炭酸カルシウムや沈降性硫酸バリウム、クレー等の顔料；光重合性のモノマーやオリゴマー；２−ヒドロキシ−２−メチルプロピオフェノン、２，２−ジメトキシ−２−フェニルアセトン等の光重合開始剤；置換ベンゾフェノン類、置換多核キノン類、ケトン類、アミン類等の光増感剤；可塑剤、界面活性剤、着色剤、安定剤等の一般的な塗料用添加剤；及び溶剤等を含有する紫外線硬化型インキ組成物が使用される。ＵＶサイズインキを構成する各成分は、１種又は２種以上を組み合わせて、使用することができる。
【００１６】
光重合性のモノマーやオリゴマーとしては特に制限はなく、例えばエチルカルビトールアクリレート、ジシクロペンテニルオキシエチルアクリレート、フェニルカルビトールアクリレート、ノニルフェノキシエチルアクリレート、２−ヒドロキシエチルメタクリレート等のモノアクリレート類；スチレン、α−メチルスチレン、ビニルピロリドン等のビニル系モノマー；１，６−ヘキサンジオールジアクリレート、トリメチロールプロパントリアクリレート、トリメチロールプロパントリメタクリレート、ペンタエリスリトールトリアクレート、ペンタエリスリトールトリメタクリレート、トリエチレングリコールジアクリレート、トリエチレングリコールジメタクリレート等の多官能性モノマー類；ならびに各種のポリエステルアクリレート、エポキシアクリレート、ウレタンアクリレート、ポリオールアクリレート等のオリゴマー類が挙げられる。
【００１７】
光重合性のモノマー及びオリゴマー（以下、両者を合わせて「光重合性モノマー類」ということがある）は、１種又は２種以上を組み合わせて使用することができる。ＵＶサイズインキ組成物中の光重合性モノマー類の含有量は、両者を合わせて組成物全体の３〜１０重量％、特に４〜７重量％とすることが好ましい。光重合性モノマー類の含有量が３重量％より少ない場合には、インキ組成物の流動性が悪くなり、乳化汚れやタック（粘着性）の上昇によって金属基材とブランケットローラとの貼り付き等が発生し、印刷適性が低下する。一方、光重合性モノマー類の含有量が１０重量％より多い場合には、紫外線照射後のサイズインキ塗布部が硬化不足となり、金属基材とサイズインキ塗布部の密着力が低下し、インキの剥離が生じ易くなる。光重合性モノマー類の最適含有量は、５〜６重量％である。
【００１８】
つぎに、ＵＶサイズインキ組成物中の光重合性モノマー類の含有量を変化させて、サイズインキ組成物の塗布工程及び紫外線照射後の性状を試験した結果を、表１に示す。
表１において、○は良好、△はやや不良、そして×は不良を意味する。
【００１９】
【表１】
本発明では、金属基材の接合用無地部と下地塗料層との境界にＵＶサイズインキ塗布部を形成し、紫外線を照射して該塗布部を硬化、乾燥させた後に、下地塗料層及びサイズインキ塗布部上に、ＵＶ印刷インキを塗布することによって文字や図柄を含むＵＶ印刷インキ層を形成し（図２参照）、紫外線を照射してＵＶ印刷インキ層を硬化させることにより、缶用胴部材を製造する。
なお、印刷のデザインによっては、ホワイトコーティング等の下地塗料層を設けないで、金属基材の光沢等を生かした印刷を行なう場合がある。その場合には、図４にみられるように、金属基材２２上の印刷を行なおうとする面積よりも広い範囲に、本発明のＵＶ硬化型サイズインキを用いてＵＶサイズインキ塗布部２４を形成し、その上にＵＶ硬化型印刷インキ層２５を設けることにより、缶用胴部材２１を構成することができる。これにより、印刷インキ層２５と金属基材２２との接着性が低下せず、印刷インキ層２５が剥離し欠落するのを防止することができる。また、得られた金属缶に各種飲料やレトルト食品等を充填後密封し、レトルト殺菌処理をする際にも、ＵＶ印刷インキ層２５が剥離し欠落するのを防止することができる。
ＵＶ印刷インキ層を形成するために使用するＵＶ印刷インキ組成物としては特に制限はなく、本発明においてＵＶサイズインキ組成物として使用されるインキ組成物をはじめとして、通常の紫外線硬化型塗料はいずれも使用することができる。
【００２１】
本発明において、金属基材上に塗布する下地塗料、ＵＶサイズインキ及びＵＶ印刷インキの塗装方法には特に制限はなく、ロールコーティング法、スプレーコーティング法、ディップコーティング法、カーテンフローコーティング法等、通常の方法を使用することができる。また、これらの組成物の塗布量は、金属基材の種類や缶の用途等に応じて適宜選択すればよい。
ＵＶサイズインキやＵＶ印刷インキを硬化させる際に照射する紫外線の波長としては、通常２００〜６００ｎｍの範囲のものが使用される。このような紫外線の線源としては、例えば高圧水銀ランプ、超高圧水銀ランプ、キセノンランプ、カーボンアーク、メタルハライドランプ、太陽光等が挙げられる。
【００２２】
本発明の缶用胴部材は、円筒成形され、溶接或いは接着等の接合加工後にネックイン、フランジ、巻締め等の加工を受けて製缶される。得られる缶の用途には特に制限はなく、各種飲料やレトルト食品、或いは海苔、お茶、キャンディー、クッキー等の食品類を収納する缶のほか、洗剤、化粧品、日用品類を収納する美術缶等としても使用できる。
本発明の缶用胴部材は、製缶時の加工のみならず、内容物充填後のレトルト処理時にも、ＵＶ印刷インキ層が剥離し欠落することを防止できることから、特に、飲料缶やレトルト食品缶のように、内容物充填後レトルト処理される缶用胴部材として好適に使用される。
そして、本発明によれば、高価な前処理装置や特別な工程を必要とせずに、かつ周辺環境への悪影響やエネルギーの浪費を伴なわずに、性状の優れた缶用胴部材を低コストで製造することができる。
【図面の簡単な説明】
【図１】本発明の缶用胴部材の製造方法を説明する模式図である。
【図２】本発明の缶用胴部材の製造方法を説明する模式図である。
【図３】従来の缶用胴部材の製造方法を説明する模式図である。
【図４】下地塗料層を設けない場合の缶用胴部材の構成を説明する模式図である。
【符号の説明】
１，１１，２１ 缶用胴部材
２，１２，２２ 金属基材
３，１３ 下地塗料層
４，２４ ＵＶサイズインキ塗布部
５，１５，２５ ＵＶ印刷用インキ層
６，１６，２６ 接合用無地部
１７ ＵＶ印刷インキ直接印刷部[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a can body member for use in a three-piece can, in which a base coating layer and an ultraviolet curable ink layer are laminated on a metal substrate.
[0002]
[Prior art]
A metal plate with characters, designs, etc. printed on its surface as a body member of a three-piece can consisting of a trunk, lid, and bottom that stores various beverages, retort foods, seaweed, tea, candy, cookies and other foods Is used.
Such a can body member forms a base coating layer on the entire surface of the substrate except the peripheral edge of the metal substrate that becomes a joint when the can is formed, and prints characters, designs, etc. on it. Manufactured.
[0003]
In recent years, to improve printing efficiency, simplify equipment, and shorten work time, it is easy to irradiate ultraviolet rays after printing for a few seconds when printing characters or designs on the base paint layer. UV curable inks (hereinafter sometimes abbreviated as “UV printing inks”) that are hardened to a wide range have been widely used. (For example, see
[0004]
[Patent Document 1]
Japanese Patent Publication No.57-5272 [Patent Document 2]
JP 11-76930 A [Patent Document 3]
Japanese Patent Laid-Open No. 2002-105392
However, when characters, designs, etc. are simply printed on the base coating layer with UV printing ink, the UV printing ink is directly applied on the peripheral edge 16 of the metal substrate 12 as shown in FIG. A printed
And after irradiating an ultraviolet-ray to the metal base material which has such a UV printing ink
[0006]
As a method for preventing such peeling of the UV printing ink direct printing part, (1) heat-treat (blank) the can body member before making the can; (2) apply the can body member to the can body before making the can. A pretreatment method such as applying surface treatment such as electric discharge machining is conceivable.
However, depending on the type of metal substrate constituting the can body member, it is difficult to prevent peeling of the UV printing ink layer even if such a pretreatment method is adopted. Further, ozone is generated during electric discharge machining, which may damage the UV printing ink layer formed on the surface of the can body member, and may oxidize peripheral devices and adversely affect the human body. And when these pre-processing methods are employ | adopted, a can manufacturing process increases and there exists a fault that manufacturing cost becomes high by introduction of an expensive pre-processing apparatus, increase in energy consumption, etc.
[0007]
[Problems to be solved by the invention]
Therefore, the present invention eliminates such problems of the prior art and prevents the UV curable printing ink layer laminated on the base coating layer on the metal substrate from peeling off from the peripheral portion and missing in the can manufacturing process. In addition, an object of the present invention is to provide a can body member that does not cause an increase in cost and an adverse effect on the environment, and a manufacturing method thereof.
[0008]
[Means for Solving the Problems]
In the present invention, in order to solve the above-mentioned problem, the following configuration is adopted.
1. In a can body member in which a base paint layer and an ultraviolet curable printing ink layer are laminated on a rectangular metal base material, an ultraviolet curable size ink application part is provided at the boundary between the edge of the base paint layer and the plain part for joining. A can body member, wherein an ultraviolet curable printing ink layer is provided on the base coating layer and the ultraviolet curable size ink application part.
2. The ultraviolet curable size ink application part is applied by applying an ultraviolet curable size ink composition containing 3 to 10% by weight of an ultraviolet curable monomer based on the entire size ink composition, and then cured by irradiation with ultraviolet rays. 2. The can body member according to 1, wherein
3. The can according to 1 or 2, wherein the ultraviolet curable size ink application part is formed in a band shape on both side edges of at least one of the long sides of the can body member. Body member.
4). A base paint layer is provided on the rectangular metal substrate, leaving a peripheral edge that is a plain part for bonding, and UV light is applied to the boundary between the edge of the base paint layer and the plain part for bonding, and then UV is applied. Irradiating to cure the size ink application part, applying the ultraviolet curable printing ink layer on the base coating layer and the size ink application part, and then irradiating the ultraviolet ray to cure the printing ink layer A method for manufacturing the body member.
5. 5. The can according to 4, wherein an ultraviolet curable size ink composition containing 3 to 10% by weight of an ultraviolet curable monomer based on the entire size ink composition is used as the ultraviolet curable size ink. A manufacturing method of a body member.
6). 6. The can according to 4 or 5, wherein the ultraviolet curable size ink application part is formed in a strip shape on both short side end portions and at least one long side end portion of the can body member. A manufacturing method of a body member.
A can having a barrel portion formed of the can barrel member according to any one of 7.1 to 3.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the can body member and the manufacturing method thereof according to the present invention will be described in detail with reference to the drawings.
1 and 2 are schematic views for explaining a can body member and a manufacturing method thereof according to the present invention. FIG. 1 is a schematic plan view showing a state before a UV printing ink layer is applied to a can body member, 2 is a schematic view of a cross section taken along line AA of FIG. 1 after a UV printing ink layer is applied to the surface of the can body member of FIG. FIG. 3 is a schematic cross-sectional view illustrating a method for producing a can body member according to the prior art.
[0010]
In order to manufacture the
[0011]
3A and 3B, a
In such a UV printing ink
[0012]
On the other hand, in the
[0013]
There are no particular restrictions on the metal substrate constituting the can body member of the present invention, such as tinplate, aluminum, tin-free steel, iron, zinc, copper, galvanized steel sheet, alloy-plated steel sheet of zinc and other metals, etc. Any material usually used for metal cans can be used.
Moreover, there is no restriction | limiting in particular also in the joining method of the can body member in a can manufacturing process, Although various methods, such as welding, soldering, and adhesion | attachment, can be used, It uses suitably for the can manufacturing process by welding especially.
[0014]
As the base paint constituting the base paint layer provided on the metal substrate, a paint composition generally used for white coating or the like can be used.
Examples of such a base paint include acrylic resin paint, vinyl resin paint, epoxy resin paint, alkyd resin paint, and polyester resin paint.
[0015]
Examples of UV size ink to be applied to the boundary between the edge of the base coating layer and the uncoated portion of the metal substrate include pigments such as titanium dioxide, calcium carbonate, precipitated barium sulfate, and clay; photopolymerizable monomers and Oligomers; photopolymerization initiators such as 2-hydroxy-2-methylpropiophenone and 2,2-dimethoxy-2-phenylacetone; photosensitizers such as substituted benzophenones, substituted polynuclear quinones, ketones and amines An ultraviolet curable ink composition containing a general paint additive such as a plasticizer, a surfactant, a colorant and a stabilizer; and a solvent is used. Each component which comprises UV size ink can be used combining 1 type (s) or 2 or more types.
[0016]
The photopolymerizable monomer or oligomer is not particularly limited, and examples thereof include monoacrylates such as ethyl carbitol acrylate, dicyclopentenyloxyethyl acrylate, phenyl carbitol acrylate, nonylphenoxyethyl acrylate, 2-hydroxyethyl methacrylate; styrene, vinyl monomers such as α-methylstyrene and vinylpyrrolidone; 1,6-hexanediol diacrylate, trimethylolpropane triacrylate, trimethylolpropane trimethacrylate, pentaerythritol triacrylate, pentaerythritol trimethacrylate, triethylene glycol diacrylate, Multifunctional monomers such as triethylene glycol dimethacrylate; and various polyester acrylates , Epoxy acrylate, urethane acrylate, oligomers such as polyols acrylate.
[0017]
Photopolymerizable monomers and oligomers (hereinafter sometimes referred to as “photopolymerizable monomers” together) may be used alone or in combination of two or more. The content of the photopolymerizable monomers in the UV size ink composition is preferably 3 to 10% by weight, particularly 4 to 7% by weight, based on the total composition. When the content of the photopolymerizable monomer is less than 3% by weight, the fluidity of the ink composition is deteriorated, and the adhesion between the metal substrate and the blanket roller is caused by an increase in emulsified dirt or tack (adhesiveness). Occurs and printability is reduced. On the other hand, when the content of the photopolymerizable monomers is more than 10% by weight, the size ink application part after ultraviolet irradiation becomes insufficiently cured, the adhesion between the metal substrate and the size ink application part is reduced, and the ink Peeling easily occurs. The optimum content of photopolymerizable monomers is 5 to 6% by weight.
[0018]
Next, Table 1 shows the results of testing the size ink composition coating step and the properties after ultraviolet irradiation by changing the content of the photopolymerizable monomers in the UV size ink composition.
In Table 1, ◯ means good, Δ means slightly bad, and × means bad.
[0019]
[Table 1]
In the present invention, a UV-size ink application part is formed at the boundary between the plain part for bonding of the metal substrate and the base paint layer, and the application part is cured and dried by irradiating ultraviolet rays, and then the base paint layer and the size are applied. A can printing cylinder is formed by applying UV printing ink on the ink coating part to form a UV printing ink layer containing characters and designs (see FIG. 2) and curing the UV printing ink layer by irradiating ultraviolet rays. A member is manufactured.
Depending on the printing design, there is a case where printing is performed by taking advantage of the gloss of the metal substrate without providing a base coating layer such as white coating. In that case, as shown in FIG. 4, the UV size
There is no particular limitation on the UV printing ink composition used to form the UV printing ink layer, and any ordinary ultraviolet curable paint, including the ink composition used as the UV size ink composition in the present invention, can be used. Can also be used.
[0021]
In the present invention, there is no particular limitation on the coating method of the base paint, UV size ink and UV printing ink applied on the metal substrate, and roll coating method, spray coating method, dip coating method, curtain flow coating method, etc. Can be used. Moreover, what is necessary is just to select the application quantity of these compositions suitably according to the kind of metal base material, the use of a can, etc.
As the wavelength of the ultraviolet rays irradiated when the UV size ink or UV printing ink is cured, those having a range of 200 to 600 nm are usually used. Examples of such an ultraviolet ray source include a high-pressure mercury lamp, an ultrahigh-pressure mercury lamp, a xenon lamp, a carbon arc, a metal halide lamp, and sunlight.
[0022]
The can body member of the present invention is formed into a cylindrical shape, and can be manufactured after being subjected to processing such as neck-in, flange, and tightening after joining processing such as welding or adhesion. There are no particular restrictions on the use of the resulting cans, as well as cans for storing various beverages and retort foods, foods such as seaweed, tea, candy and cookies, as well as art cans for storing detergents, cosmetics and daily necessities. Can also be used.
The can body member for cans of the present invention can prevent the UV printing ink layer from being peeled off and lost not only during processing during can making but also during retort processing after filling the contents. Like a can, it is suitably used as a barrel member for a can that is retorted after filling the contents.
According to the present invention, a can barrel member having excellent properties can be produced at low cost without requiring an expensive pretreatment device or a special process, and without adversely affecting the surrounding environment and wasting energy. Can be manufactured.
[Brief description of the drawings]
FIG. 1 is a schematic diagram for explaining a method for producing a can body member according to the present invention.
FIG. 2 is a schematic view for explaining a method for producing a can body member according to the present invention.
FIG. 3 is a schematic view for explaining a conventional method for producing a can body member.
FIG. 4 is a schematic diagram for explaining a configuration of a can body member when a base paint layer is not provided.
[Explanation of symbols]
1,11,21 Can
Claims (7)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002350862A JP4231998B2 (en) | 2002-12-03 | 2002-12-03 | Can body member and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002350862A JP4231998B2 (en) | 2002-12-03 | 2002-12-03 | Can body member and manufacturing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2004181750A true JP2004181750A (en) | 2004-07-02 |
| JP4231998B2 JP4231998B2 (en) | 2009-03-04 |
Family
ID=32752934
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2002350862A Expired - Lifetime JP4231998B2 (en) | 2002-12-03 | 2002-12-03 | Can body member and manufacturing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4231998B2 (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS575272B2 (en) * | 1976-02-17 | 1982-01-29 | ||
| JPS57148684A (en) * | 1981-03-11 | 1982-09-14 | Toyo Seikan Kaisha Ltd | Large metal printing plate |
| JPS61115970A (en) * | 1984-11-13 | 1986-06-03 | Dainichi Seika Kogyo Kk | Paint composition for two-piece can and manufacture of coated two-piece can |
| JPH1176930A (en) * | 1997-09-09 | 1999-03-23 | Kishimoto Akira | Production of printing can |
| JPH11148037A (en) * | 1997-11-14 | 1999-06-02 | Dainippon Ink & Chem Inc | Energy light-curable printing ink composition for printing can and coating using the same |
| JPH11217518A (en) * | 1998-02-02 | 1999-08-10 | Kansai Paint Co Ltd | Ultraviolet light-curable coating composition for white coat |
| JP2002105392A (en) * | 2001-07-12 | 2002-04-10 | Kansai Paint Co Ltd | Ultraviolet curing type coating composition for can |
-
2002
- 2002-12-03 JP JP2002350862A patent/JP4231998B2/en not_active Expired - Lifetime
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS575272B2 (en) * | 1976-02-17 | 1982-01-29 | ||
| JPS57148684A (en) * | 1981-03-11 | 1982-09-14 | Toyo Seikan Kaisha Ltd | Large metal printing plate |
| JPS61115970A (en) * | 1984-11-13 | 1986-06-03 | Dainichi Seika Kogyo Kk | Paint composition for two-piece can and manufacture of coated two-piece can |
| JPH1176930A (en) * | 1997-09-09 | 1999-03-23 | Kishimoto Akira | Production of printing can |
| JPH11148037A (en) * | 1997-11-14 | 1999-06-02 | Dainippon Ink & Chem Inc | Energy light-curable printing ink composition for printing can and coating using the same |
| JPH11217518A (en) * | 1998-02-02 | 1999-08-10 | Kansai Paint Co Ltd | Ultraviolet light-curable coating composition for white coat |
| JP2002105392A (en) * | 2001-07-12 | 2002-04-10 | Kansai Paint Co Ltd | Ultraviolet curing type coating composition for can |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4231998B2 (en) | 2009-03-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20150001118A1 (en) | Application of designs to portion of food container | |
| KR20120051030A (en) | Method and product of hydraulic transfer | |
| JP2007090162A (en) | Method for processing surface of printed matter | |
| JP4231998B2 (en) | Can body member and manufacturing method thereof | |
| JP2008120846A (en) | Ultraviolet-curing type overprint varnish composition | |
| WO2018117079A1 (en) | Active energy ray-curable printing ink composition, and printing method using same | |
| JP3864325B2 (en) | Energy beam curable printing ink composition for can printing and coating method using the same | |
| JP7114042B2 (en) | LAMINATED PRODUCT AND METHOD OF MANUFACTURING LAMINATED BODY | |
| JP4519184B2 (en) | Writing paper and method for manufacturing writing paper | |
| JP2005219413A (en) | Phosphorescent metal plate and manufacturing process of phosphorescent metal plate | |
| JP2008200662A (en) | Coated metallic plate having non-glossy surface and method of manufacturing the same | |
| JP2005169693A (en) | Hydraulic pressure transferring method and hydraulic pressure transferring article | |
| JP2010280858A (en) | Ultraviolet-curable adhesive for metallic foil transfer, and printing method using the adhesive | |
| CN110949028A (en) | Printing method for strengthening sprayed code adhesive force on gloss oil surface | |
| JPH05254066A (en) | Embossing release material and production thereof | |
| JP2006176130A (en) | Paper container for liquid | |
| JP3524264B2 (en) | Film sticking can body and method for producing the same | |
| JP3806738B2 (en) | Water pressure transfer method and water pressure transfer product | |
| EP3667418B1 (en) | Photosensitive resin composition for relief printing original plate and relief printing original plate using the same | |
| JPS63214375A (en) | Anticorrosion treatment of metal with ultraviolet curable resin | |
| JPH0263824A (en) | Specular transfer material and production of transferred molded article | |
| JP4704875B2 (en) | Brittle label | |
| JP2001301305A (en) | Print covering matter and manufacturing method therefor | |
| JP2005305294A (en) | Active-energy-ray-hardenable coated building material | |
| JP2002249131A (en) | Drawn can coated with organic resin |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20051117 |
|
| A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20080718 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20080812 |
|
| A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20081008 |
|
| TRDD | Decision of grant or rejection written | ||
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20081112 |
|
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 |
|
| A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20081125 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20111219 Year of fee payment: 3 |
|
| R150 | Certificate of patent or registration of utility model |
Ref document number: 4231998 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20121219 Year of fee payment: 4 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20121219 Year of fee payment: 4 |
|
| S531 | Written request for registration of change of domicile |
Free format text: JAPANESE INTERMEDIATE CODE: R313531 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20121219 Year of fee payment: 4 |
|
| R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20131219 Year of fee payment: 5 |
|
| S533 | Written request for registration of change of name |
Free format text: JAPANESE INTERMEDIATE CODE: R313533 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20131219 Year of fee payment: 5 |
|
| R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
| S111 | Request for change of ownership or part of ownership |
Free format text: JAPANESE INTERMEDIATE CODE: R313111 |
|
| R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
| EXPY | Cancellation because of completion of term |