JPH05111979A - Steel plate for three-piece can having stripe like multilayered organic film - Google Patents
Steel plate for three-piece can having stripe like multilayered organic filmInfo
- Publication number
- JPH05111979A JPH05111979A JP11349691A JP11349691A JPH05111979A JP H05111979 A JPH05111979 A JP H05111979A JP 11349691 A JP11349691 A JP 11349691A JP 11349691 A JP11349691 A JP 11349691A JP H05111979 A JPH05111979 A JP H05111979A
- Authority
- JP
- Japan
- Prior art keywords
- film
- layer
- steel plate
- piece
- coating
- 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
Landscapes
- Laminated Bodies (AREA)
- Rigid Containers With Two Or More Constituent Elements (AREA)
- Details Of Rigid Or Semi-Rigid Containers (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、缶容器、特に缶胴の接
合を接着や溶接によって行うスリーピース缶用鋼板に関
するもので、鋼板の長手方向に連続的なストライプ状の
多層有機皮膜を有するものである。更に詳述すると、缶
内面相当面には、熱硬化性塗膜および／または熱可塑性
樹脂フィルムが、缶外面相当面には、商標デザインが印
刷されたフィルムが、鋼板の幅方向に１〜１０mm幅の複
数個の非塗装部を介して被覆されていることを特徴とす
るストライプ状の多層有機皮膜を有するスリーピース缶
用鋼板に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a can container, and more particularly to a steel plate for a three-piece can in which the can body is joined by adhesion or welding, and having a striped multi-layer organic film continuous in the longitudinal direction of the steel plate. Is. More specifically, a thermosetting coating film and / or a thermoplastic resin film is provided on the surface corresponding to the inner surface of the can, and a film having a trademark design printed on the surface corresponding to the outer surface of the can is 1 to 10 mm in the width direction of the steel sheet. The present invention relates to a steel sheet for a three-piece can having a striped multi-layer organic coating, which is coated through a plurality of unpainted portions having a width.
【０００２】[0002]
【従来の技術】缶容器を製缶プロセスの面から見ると、
大きく二種類に分類される。一つは缶底と缶胴が一体と
なったものに天蓋を巻締める、通常ツーピース缶と呼ば
れ、代表的な缶として絞り・しごき加工によって製缶さ
れるＤＩ缶（Ｄｒａｗｎ ａｎｄ Ｉｒｏｎｅｄ缶）
と、絞り加工によって製缶されるＤｒＤ缶（Ｄｒａｗ
ａｎｄ Ｒｅｄｒａｗｎ缶）がある。もう一つは缶胴に
地蓋を巻締めたものに天蓋を巻締める、通常スリーピー
ス缶と呼ばれ、代表的な缶として、半田缶・接着缶・溶
接缶等があるが、現在は接着缶と溶接缶が主流となって
いる。2. Description of the Related Art Looking at a can container from the viewpoint of the can manufacturing process,
There are two major categories. One is a DI can (Drawn and Ironed can), which is usually called a two-piece can in which a can bottom is integrated with a can body, and is usually called a two-piece can.
And the DrD can (Draw)
and Redrown can). The other is usually a three-piece can, in which the canopy is wrapped around the can body and is usually called a three-piece can. Typical cans are solder cans, adhesive cans, and welded cans. And welding cans are the mainstream.
【０００３】スリーピース缶用素材としては、錫めっき
系・ニッケルめっき系・クロムめっき系素材その他が使
用されている。これらの素材は、殆どの場合、缶内面は
内容物保持性（耐食性）の点から塗装が施され、又缶外
面は内容物表示のため商標デザインが印刷されている。
この内面塗装および外面印刷は、前述したスリーピース
缶用素材を切板にした後、切板塗装ラインにて、内面塗
装（１回目）、外面印刷用下地塗装（２回目）、外面印
刷（３回目）の３回通板により製造される。高度の耐食
性が要求される用途に対しては二度の内面塗装が行われ
る場合があり、又外面印刷も５色以上の多色印刷の場合
二度の印刷が行われ、結果として４回通板あるいは５回
通板により缶内外面用の塗装・印刷が行われることもあ
る。そして、１回の通板毎に切板は焼付け炉で加熱され
る必要がある。As materials for three-piece cans, tin-plated, nickel-plated, chrome-plated materials and others are used. In most of these materials, the inner surface of the can is coated from the viewpoint of content retention (corrosion resistance), and the outer surface of the can is printed with a trademark design for indicating the content.
This inner surface coating and outer surface printing is performed by cutting the above-mentioned three-piece can material into a cutting board, and then using a cutting board coating line, an inner surface coating (first time), an outer surface printing base coating (second time), and an outer surface printing (third time). ) 3 times of passing. For applications that require a high degree of corrosion resistance, the inner surface may be coated twice, and the outer surface may be printed twice in the case of multicolor printing of 5 colors or more, resulting in four passes. Paint or printing on the inside and outside of the can may be performed by a plate or a 5-pass plate. Then, the cut plate needs to be heated in the baking furnace for each passing.
【０００４】このような塗装印刷工程の合理化のため、
いわゆるコイルコーティング法にて内面塗装、外面印刷
用ホワイトコート、更には外面印刷まで一貫して連続的
に行うことが期待されるが、金属素地をベースとする場
合には印刷精度を出すことが難しく、実用化されていな
い。フィルムを鋼板に積層させる技術は古くからあり、
缶容器の分野に対しても従来から検討されてきている。
例えば、特開昭６２−２２７６４２号公報、特開昭５８
−８２７１７号公報に見られるように、従来技術は主に
絞り缶や絞りしごき缶といったツーピース缶や１８ｌ
缶、および缶蓋用途であり、本発明のように商標デザイ
ンを印刷したフィルムが積層されたスリーピース缶用コ
イル鋼板の例はない。In order to rationalize such a coating and printing process,
It is expected that the so-called coil coating method will be able to consistently and continuously perform internal coating, white coating for external printing, and even external printing, but it is difficult to achieve printing accuracy when using a metal base. , Has not been put to practical use. The technology of laminating a film on a steel plate has been around for a long time,
It has also been studied in the field of cans.
For example, JP-A-62-227642 and JP-A-58.
As can be seen in Japanese Laid-Open Patent Publication No. 82717, the prior art is mainly concerned with two-piece cans such as squeezed cans and squeezed irons,
There is no example of a coil steel sheet for a three-piece can, which is used for a can and a can lid and in which a film on which a trademark design is printed as in the present invention is laminated.
【０００５】[0005]
【発明が解決しようとする課題】前述したように、現在
使用されているスリーピース缶は、煩雑な塗装・印刷工
程を経て製造されており、生産性が悪い、仕上がり
期間が長い、多数の人手を要する、印刷仕上がり外
観の高級化が難しい、極薄鋼板の使用が困難である、
等の問題から缶コストアップとなっており、競争力を低
下させる原因となっている。更には、スリーピース缶に
対し、印刷外観の美麗な、高級感有ふれる商標イメージ
が市場にて求められ、缶外面の印刷品質の一層の向上が
必要視されている。As described above, the currently used three-piece cans are manufactured through complicated painting / printing processes, resulting in poor productivity, a long finish period, and a large number of manpower. In short, it is difficult to enhance the appearance of printed finish, it is difficult to use ultra-thin steel sheet,
Due to such problems, the cost of cans is increasing, which is a cause of reducing competitiveness. Further, for the three-piece can, there is a demand in the market for a trademark image with a beautiful printing appearance and a touch of high quality, and it is necessary to further improve the printing quality on the outer surface of the can.
【０００６】本発明は、スリーピース缶用塗装鋼板をコ
イル状態にて製造・供給することを可能とし、更には缶
内面の耐食性向上および缶外面の装飾性を一層高めるこ
とにより、商品イメージの高いスリーピース缶用塗装鋼
板の提供を可能とするものである。The present invention makes it possible to manufacture and supply a coated steel sheet for a three-piece can in a coiled state, and further improve the corrosion resistance of the inner surface of the can and the decorativeness of the outer surface of the can to further enhance the product image. It is possible to provide coated steel sheets for cans.
【０００７】[0007]
【課題を解決するための手段】本発明の要旨とするとこ
ろは、鋼板の片面（缶内面相当）長手方向に連続的に、
缶径に対応する幅（缶の円周方向長さ）よりわずかに狭
い幅の熱硬化性塗膜層および／または熱可塑性樹脂フィ
ルム層が、幅方向に１〜１０mm幅の非塗装部を介して存
在し、もう片方の面（缶外面相当）には、商標デザイン
を表示した印刷インキ層を有する熱可塑性樹脂フィルム
層を表裏対応する位置に有することを特徴とするストラ
イプ状の多層有機皮膜を有するスリーピース缶用鋼板に
ある。The gist of the present invention is that one side of a steel plate (corresponding to the inner surface of a can) is continuously lengthwise,
A thermosetting coating film layer and / or a thermoplastic resin film layer having a width slightly narrower than the width corresponding to the can diameter (circumferential length of the can) is provided with an unpainted portion having a width of 1 to 10 mm in the width direction. Existing on the other side (corresponding to the outer surface of the can), a striped multi-layer organic film having a thermoplastic resin film layer having a printing ink layer displaying a trademark design at positions corresponding to the front and back sides. It is in the steel plate for three-piece cans.
【０００８】本発明の基本的着想は、鋼板への直接連続
印刷が困難なためフィルム上に連続印刷を行い、印刷済
みのフィルムを鋼板表面に連続的に積層することによ
り、鋼板への連続印刷を間接的に可能とするものであ
る。スリーピース缶の製造工程は、表面処理鋼板の両面
に缶内面用および缶外面用の有機皮膜が被覆され、缶サ
イズ相当の大きさに切断され、溶接あるいは接着による
製胴、缶胴接合部の補修塗装、ネックドイン加工、地蓋
巻締め、内容物充填、天蓋巻締めされるわけだが、充填
後、更に高温殺菌処理（レトルト処理）が行われる。The basic idea of the present invention is that continuous printing on a steel plate is difficult because direct continuous printing on the steel plate is difficult and continuous printing is performed on the steel plate by continuously laminating the printed film on the surface of the steel plate. Is indirectly possible. In the manufacturing process of three-piece cans, both surfaces of the surface-treated steel sheet are coated with an organic film for the inner surface of the can and the outer surface of the can, cut into a size equivalent to the size of the can, and welding or bonding is used to repair the body and can body joints. Although painting, necked-in processing, ground wrapping, content filling, and canopy wrapping are performed, high-temperature sterilization treatment (retort treatment) is performed after filling.
【０００９】本発明において１〜１０mmの非塗装部を設
けることの意味は、その箇所の中央で缶サイズ相当に切
断され、製胴の際の接合ラップ代（重ね合せ部）にする
ためである。製胴の際の接合ラップ代は、溶接缶と接着
缶とでは若干異なるが、例えば溶接缶の場合は約０．５
mm程度である。従って厳密な意味においては１mm程度の
非塗装部を設ければよいが、溶接による製胴の場合は溶
接時に発熱し、一方、接着による製胴の場合は熱接着の
ためその熱影響を受けるため、何れの手段においても熱
影響が積層させたフィルムになるべく及ばないようにす
る必要がある。かかる意味において、非塗装部を１〜１
０mmとしたものであって、好ましくは２〜４mmが最適で
ある。In the present invention, the purpose of providing a non-painted portion of 1 to 10 mm is to cut at the center of the portion to a size corresponding to a can and use it as a joining lap margin (overlapping portion) during cylinder making. .. The welding lap for the body is slightly different between the welding can and the adhesive can, but for example, in the case of the welding can, it is about 0.5.
It is about mm. Therefore, in a strict sense, it is sufficient to provide a non-painted part of about 1 mm, but in the case of the body made by welding, heat is generated during welding, while in the case of body made by adhesion, it is affected by the heat due to heat adhesion. However, it is necessary to prevent the heat effect from reaching the laminated film by any means. In this sense, the unpainted part is 1 to 1
The thickness is 0 mm, and preferably 2 to 4 mm.
【００１０】塗装部（フィルム積層部）の幅は、非塗装
部を含めて切断後缶径相当の長さであり、缶サイズに応
じて種々の長さに作り分ける必要がある。このような両
端部に非塗装部を有する鋼板をフィルム積層方式で製造
する場合、一般的には鋼板を必要な寸法幅に帯状にスリ
ットし、その上に予め準備された鋼板幅より幅狭のフィ
ルムを、鋼板の両端を残して積層する方法が採用される
が、この方法は技術的に確実な製造方法を提供するもの
の、鋼板およびフィルムを予め必要寸法に切り出してお
く必要があり、一条ずつ製造されるため生産性の面では
不満足である。The width of the coated portion (film laminated portion) is the length corresponding to the can diameter after cutting, including the non-coated portion, and it is necessary to make various lengths according to the can size. When manufacturing a steel sheet having a non-painted portion at such both ends by a film laminating method, generally, the steel sheet is slit into a strip with a required dimension width, and a width narrower than a steel sheet width prepared in advance on the slit. A method of laminating the film leaving both ends of the steel sheet is adopted, but this method provides a technically reliable manufacturing method, but it is necessary to cut out the steel sheet and the film in advance to necessary dimensions, Since it is manufactured, it is not satisfactory in terms of productivity.
【００１１】本発明では、鋼板を予め帯状にスリットす
ることなく、幅方向全面にストライプ状にフィルムを積
層することにより生産性の優れた塗装印刷工程を実現す
ることを可能とするものである。以下に本発明の皮膜を
構成する各層の役割につき説明する。缶外面における樹
脂フィルムは、前述のごとく連続印刷を行うための基体
をなすものである。この基体フィルムを中心にして、接
着剤層／印刷インキ層／基体フィルム層／潤滑皮膜層あ
るいは接着剤層／基体フィルム層／印刷インキ層／潤滑
皮膜層の多層構造を有する複合フィルムを作成し鋼板表
面に積層する。According to the present invention, it is possible to realize a coating / printing process with excellent productivity by laminating films in stripes on the entire surface in the width direction without preliminarily slitting the steel plate into strips. The role of each layer constituting the film of the present invention will be described below. The resin film on the outer surface of the can forms a base for performing continuous printing as described above. With this substrate film as the center, a composite film having a multilayer structure of adhesive layer / printing ink layer / substrate film layer / lubricating film layer or adhesive layer / substrate film layer / printing ink layer / lubricating film layer was prepared and a steel plate was prepared. Laminate on the surface.
【００１２】この複合フィルムの構成層のうち、印刷イ
ンキ層は銘柄等を表示するもので、商標デザインが印刷
されている。潤滑皮膜層は、高速製缶ラインでの皮膜の
傷つき防止を目的としたもので、鮮映性等の外観確保か
ら必要なものである。接着剤層は、予め印刷されたフィ
ルムが十分な接着力を有して積層されるために必要とさ
れる。Among the constituent layers of this composite film, the printing ink layer displays a brand and the like, and has a trademark design printed thereon. The lubricating film layer is intended to prevent the film from being scratched in a high-speed can manufacturing line, and is necessary for ensuring the appearance such as the image clarity. The adhesive layer is needed for the preprinted film to be laminated with sufficient adhesion.
【００１３】この缶外面に適用される複合フィルムの印
刷外観の鮮映性確保あるいは密着性補助のため、下地と
して熱硬化性有機塗膜層を使用する場合がある。缶内面
用のフィルムは内容物保持性（耐食性）を目的としたも
ので、前述したように高度の耐食性が要求される用途に
対しては二度の内面塗装が必要な場合があるが、フィル
ム積層法では厚みや樹脂の種類を変えることで全用途に
対応可能である。A thermosetting organic coating layer may be used as a base in order to secure the clarity of the printed appearance of the composite film applied to the outer surface of the can or to assist the adhesion. The film for the inner surface of the can is intended to retain the contents (corrosion resistance), and as mentioned above, it may be necessary to coat the inner surface twice for applications requiring a high degree of corrosion resistance. The laminating method can be applied to all applications by changing the thickness and the type of resin.
【００１４】次に本発明に用いられる多層有機皮膜層の
それぞれについて説明する。スリーピース缶の製造工程
は先に概説したところであるが、特に缶胴接合部の補修
塗装は、溶接缶の場合必須の項目であり、充填される内
容物によって種々の補修塗装が行われている。この補修
塗装は、生産性の点から短時間焼付けの方向にあり、温
度的には２８０℃に達する場合がある。又、レトルト処
理は、通常１１０〜１３０℃の温度で２０〜６０分行わ
れる。従って、当然のことながら缶内外面に積層される
フィルムはこれらの工程に耐える必要があり、耐熱性お
よび耐水性の点で制約を受ける。Next, each of the multilayer organic coating layers used in the present invention will be described. Although the manufacturing process of a three-piece can has been outlined above, repair painting of the can body joint is an essential item in the case of a welded can, and various repair paintings are performed depending on the contents to be filled. This repair coating is in the direction of baking for a short time from the viewpoint of productivity, and the temperature may reach 280 ° C. Further, the retort treatment is usually performed at a temperature of 110 to 130 ° C. for 20 to 60 minutes. Therefore, it goes without saying that the film laminated on the inner and outer surfaces of the can must withstand these steps, and is limited in terms of heat resistance and water resistance.
【００１５】本発明に適用されるフィルムは、ポリエス
テルフィルム、ポリプロピレンフィルム、ナイロンフィ
ルム等の熱可塑性樹脂フィルムである。内面用積層フィ
ルムの主目的は内容物に対する耐食性確保であるが、補
修塗装の焼付け時の耐熱性が十分でないと局部的に溶融
し、激しいときには欠陥が発生し、被覆性を損ね、耐食
性が著しく劣る結果となる場合がある。従って、前述し
た接合部の補修塗装の焼付け条件に適したフィルムを使
用する必要があることはいうまでもない。The film applied to the present invention is a thermoplastic resin film such as a polyester film, a polypropylene film and a nylon film. The main purpose of the laminated film for the inner surface is to secure corrosion resistance to the contents, but if the heat resistance during baking of the repair coating is not sufficient, it will melt locally, and when it is severe, defects will occur, impairing the coating property and significantly increasing the corrosion resistance. The result may be inferior. Therefore, it goes without saying that it is necessary to use a film suitable for the baking conditions for the repair coating of the above-mentioned joint portion.
【００１６】ポリプロピレンフィルムの場合、融点が約
１６５℃程度であるから、補修塗装の焼付け温度が１６
０℃以下の用途に有用である。ナイロンフィルムの場合
は、融点が約２２５℃程度であるから、補修塗装の焼付
け温度が２２０℃以下の場合に適用できる。ポリエステ
ルフィルムの場合は、アルコール成分と酸成分を選択す
ることで２６５℃程度の高融点のものが得られ、耐熱性
も確保できることから適用性は広く好ましい。Since the melting point of polypropylene film is about 165 ° C., the baking temperature for repair coating is 16
It is useful for applications below 0 ° C. Since the melting point of nylon film is about 225 ° C, it can be applied when the baking temperature for repair coating is 220 ° C or less. In the case of a polyester film, by selecting an alcohol component and an acid component, a polyester film having a high melting point of about 265 ° C. can be obtained, and heat resistance can be secured, so that the applicability is wide and preferable.
【００１７】次に耐水性であるが、この点は例えば吸水
率として１％以下の樹脂フィルムの適用が望ましい。１
％を超える吸水率を有するフィルムを適用した場合、前
述したレトルト処理時に下地鋼板の腐食が起こり易く、
内容物の変質につながる場合があるため好ましくない。
従って、ポリエステルフィルム、ポリプロピレンフィル
ム、ポリエチレンフィルムは何れも吸水率１％以下であ
り問題ないが、ナイロンフィルムを適用する場合は、例
えばナイロン６のようなフィルムの適用は避ける必要が
ある。Next, regarding water resistance, it is desirable to apply a resin film having a water absorption rate of 1% or less. 1
When a film having a water absorption rate of more than 100% is applied, corrosion of the base steel sheet is likely to occur during the retort treatment described above,
It is not preferable because it may change the quality of the contents.
Therefore, all of the polyester film, polypropylene film, and polyethylene film have a water absorption rate of 1% or less, which is not a problem, but when a nylon film is used, it is necessary to avoid using a film such as nylon 6.
【００１８】次に、本発明では缶内面のフィルム厚みは
５〜５０μm である。フィルム厚を５〜５０μm に限定
した理由は以下の通りである。即ち、製缶工程における
フィルム損傷を想定し、なおかつ十分な内容物保存性を
確保するためには５μm 未満では不十分である。一方、
上限の５０μm を超えても耐食性の点で効果は飽和し、
経済的に不利となる。積層する内面フィルム厚みは、好
ましくは１２〜４０μm であり、更に好ましくは１６〜
３０μm が有利である。Next, in the present invention, the film thickness on the inner surface of the can is 5 to 50 μm. The reason for limiting the film thickness to 5 to 50 μm is as follows. That is, if the film thickness is less than 5 μm, it is assumed that the film will be damaged in the can making process and the sufficient content storability is ensured. on the other hand,
Even if the upper limit of 50 μm is exceeded, the effect will be saturated in terms of corrosion resistance,
It is economically disadvantageous. The thickness of the inner film to be laminated is preferably 12 to 40 μm, more preferably 16 to
30 μm is preferred.
【００１９】缶外面のフィルムの厚みは、５〜２５μm
のものが適用される。下限の５μm未満のときはフィル
ムが製缶工程で傷ついた場合に点錆発生の原因となり、
外観の劣化をきたすため好ましくない。一方、上限の２
５μm を超えても錆発生の点で効果は飽和し、経済的に
不利となる。好ましくは８〜２０μm が良い。本発明に
おけるフィルムの接着方式としては、熱接着方式あるい
は接着剤塗布方式が採用される。ポリエステルフィルム
およびナイロンフィルムはそれ自体が熱接着可能な樹脂
フィルムであるため、加熱した鋼板表面に直接熱接着可
能であるが、ポリプロピレンフィルムおよびポリエチレ
ンフィルムはそのままでは熱接着が不可能なため、食品
衛生上問題ない範囲内で、例えばマレイン酸や無水マレ
イン酸等で変性し、熱接着を可能にする方策が採用され
る。The thickness of the film on the outer surface of the can is 5 to 25 μm.
Those applied. If it is less than the lower limit of 5 μm, it may cause point rust when the film is damaged in the can making process,
It is not preferable because it deteriorates the appearance. On the other hand, the upper limit of 2
Even if it exceeds 5 μm, the effect is saturated in terms of rust generation, which is economically disadvantageous. It is preferably 8 to 20 μm. As the film adhesion method in the present invention, a heat adhesion method or an adhesive application method is adopted. Polyester film and nylon film are heat-bondable resin films themselves, so they can be directly heat-bonded to the surface of a heated steel sheet, but polypropylene films and polyethylene films cannot be heat-bonded as they are, so food hygiene is not possible. As long as there is no problem in terms of the above, a method of allowing thermal adhesion by modifying with maleic acid, maleic anhydride or the like is adopted.
【００２０】接着剤塗布方式としては、硬化剤を含むウ
レタン系やポリエステル系接着剤を塗布・乾燥したもの
が使用される。接着剤層の厚みは１〜５μm である。１
μm未満では接着強度は十分に確保されない。又、５μm
を超えても効果は飽和する。好ましくは１．５〜４μm
である。又、缶内面に有機皮膜を適用する場合、エポ
キシ系、エポキシフェノール系、エポキシエステル系、
エポキシ尿素系、アクリル系、ポリエステル系塗料等、
現在缶内面用塗料として使用されているものが適用され
る。塗布量としては、乾燥膜厚として５〜１０μm で良
く、塗布方法としては現行のロール塗布法等が採用でき
る。As the adhesive application method, a urethane or polyester adhesive containing a curing agent is applied and dried. The thickness of the adhesive layer is 1 to 5 μm. 1
If it is less than μm, the adhesive strength is not sufficiently secured. Also, 5 μm
The effect is saturated even if it exceeds. Preferably 1.5 to 4 μm
Is. Also, when applying an organic film to the inner surface of the can, epoxy-based, epoxyphenol-based, epoxy ester-based,
Epoxy urea type, acrylic type, polyester type paint, etc.
The one currently used as the paint for the inner surface of the can is applied. The coating amount may be 5 to 10 μm as a dry film thickness, and the current roll coating method or the like can be adopted as the coating method.
【００２１】缶外面に積層フィルムの下地として熱硬化
性有機塗膜を施す場合、エポキシ系、アクリル系、ポリ
エステル系塗料等が使用され、酸化チタン系の白色顔料
を０〜３０％含有させる。下限の０％は無添加を意味す
るものであるが、白色顔料を添加する場合には、１％以
下では白色化の効果が少なく、３０％超では白色化の効
果がほぼ飽和すると共に塗膜性状が悪化する傾向にあ
り、３０％以下が良い。より望ましい範囲は、１０〜２
５％の範囲である。When a thermosetting organic coating film is applied to the outer surface of the can as an undercoat of a laminated film, an epoxy-based, acrylic-based, polyester-based paint or the like is used, and contains a titanium oxide-based white pigment in an amount of 0 to 30%. The lower limit of 0% means no addition, but when a white pigment is added, the effect of whitening is small at 1% or less, and the effect of whitening is almost saturated at more than 30% and a coating film is obtained. The property tends to deteriorate, and 30% or less is preferable. More desirable range is 10-2
It is in the range of 5%.
【００２２】熱硬化性有機塗膜層の厚みは１〜１５μm
であるが、白色顔料を含まない場合の塗膜層の厚みは１
〜３μm で良く、白色顔料による色合いを期待する場合
は塗膜厚みは５〜１５μm が良い。次に缶外面の潤滑皮
膜層および印刷インキ層につき説明する。フィルム最外
層の潤滑皮膜は、製缶工程におけるフィルムの傷付き防
止および通板性といった観点から施すもので、静摩擦係
数が０．２以下の皮膜が有利であり、例えばアクリル
系、ポリエステル系等の塗料にＳｉ系の微粒子や有機系
潤滑剤を含有させた皮膜が適用される。厚みは０．１〜
５μm である。０．１μm 未満では摩擦係数は小さくな
らず、効果は見られない。又、５μm を超えると摩擦係
数の更なる低下はなく効果は飽和してくる。フィルム上
層の潤滑皮膜の厚みは１ 〜４μm が好ましい。The thickness of the thermosetting organic coating layer is 1 to 15 μm
However, the thickness of the coating layer when the white pigment is not included is 1
The coating thickness is preferably 5 to 15 .mu.m when the color tone of the white pigment is expected. Next, the lubricant film layer and the printing ink layer on the outer surface of the can will be described. The outermost lubricating film of the film is applied from the viewpoint of preventing scratching of the film in the can making process and the plate passing property, and a film having a static friction coefficient of 0.2 or less is advantageous. A coating containing Si-based fine particles and an organic lubricant is applied to the paint. Thickness is 0.1
It is 5 μm. If it is less than 0.1 μm, the coefficient of friction does not decrease and no effect is observed. On the other hand, if the thickness exceeds 5 μm, the friction coefficient does not decrease further and the effect is saturated. The thickness of the lubricating film as the upper layer of the film is preferably 1 to 4 μm.
【００２３】本発明に適用される印刷インキ層は、商標
デザインを印刷するもので、ウレタン樹脂を主バインダ
ーとした耐熱性・耐レトルト性の良好なインキで印刷さ
れる。本発明の重要目的である商標デザインの鮮映性を
確保するためグラビア印刷が好ましいと判断される。イ
ンキ層の厚みは、商標デザインによって多種多様であ
り、基本的には限定できるものではない。The printing ink layer applied to the present invention prints a trademark design, and is printed with an ink containing urethane resin as a main binder and having excellent heat resistance and retort resistance. Gravure printing is considered to be preferable in order to ensure the clearness of the trademark design, which is an important object of the present invention. The thickness of the ink layer varies widely depending on the trademark design, and basically cannot be limited.
【００２４】本発明の缶外面に相当する鋼板表面には、
予め潤滑性皮膜および商標デザインの印刷が施されたフ
ィルムを、接着剤を塗布した鋼板に積層させるドライラ
ミネート法や、予めフィルムに潤滑性皮膜および商標デ
ザインを印刷した後、インキ層面に接着剤を塗布・乾燥
させたフィルムを加熱された鋼板に積層させる方法等よ
り多層有機皮膜が施される。、こうして得られた多層有
機皮膜を有する鋼板は、通常の溶接缶・接着缶等のスリ
ーピース缶の製胴手段で製缶できる。On the surface of the steel plate corresponding to the outer surface of the can of the present invention,
A film that has been printed with a lubricity film and a trademark design in advance is laminated on a steel sheet coated with an adhesive, or after the lubrication film and the trademark design have been printed on the film in advance, the adhesive is applied to the ink layer surface. A multi-layer organic film is applied by a method such as laminating a coated and dried film on a heated steel plate. The thus-obtained steel sheet having a multilayer organic film can be made by a conventional means for making a three-piece can such as a welding can or an adhesive can.
【００２５】本発明における缶内外面に相当する鋼板表
面へのフィルム積層手段については、内面、外面個々に
説明した通りであるが、塗装部および非塗装部の表裏位
置合わせが最も重要な点であることから、積層されるフ
ィルムの寸法精度、形状が重要である。鋼板の加熱手段
としては、通電加熱方式、高周波誘導加熱方式、熱風加
熱方式、赤外線加熱方式等の単独又は併用が採用可能で
ある。The film laminating means on the steel plate surface corresponding to the inner and outer surfaces of the can in the present invention is as described for the inner surface and the outer surface respectively, but the front and back alignment of the coated part and the non-coated part is the most important point. Therefore, the dimensional accuracy and shape of the laminated film are important. As a heating means for the steel sheet, an electric heating method, a high frequency induction heating method, a hot air heating method, an infrared heating method or the like can be used alone or in combination.
【００２６】本発明に使用される鋼板は、Ａｌ、Ｃｒ、
Ｎｉ、Ｓｎ等のめっきを施した表面処理鋼板で、板厚は
０．１０〜０．２５mmのものが多用される。具体的に
は、付着量０．５〜３．０g/m2の錫めっき後、化成処理
を施した錫めっき鋼板、付着量０．３〜２．０g/m2のニ
ッケルめっき後、化成処理を施したニッケルめっき鋼
板、ＳｎおよびＮｉ付着量として各々０．５〜２．０g/
m2、０．１〜０．５g/m2をＮｉ、Ｓｎの順にめっき後、
化成処理を施したＳｎ／Ｎｉめっき鋼板、金属Ｃｒ付着
量５０〜１２０mg/m2 、酸化Ｃｒ付着量５〜２０mg/m2
の通常ＴＦＳ（Ｔｉｎ Ｆｒｅｅ Ｓｔｅｅｌ）と呼ば
れているクロム・クロメート処理鋼板などである。The steel sheets used in the present invention are Al, Cr,
A surface-treated steel plate plated with Ni, Sn, or the like and having a plate thickness of 0.10 to 0.25 mm is often used. Specifically, the adhesion amount 0.5 to 3.0 g / m 2 after tin plating, tin-plated steel sheet subjected to chemical conversion treatment, after the nickel coating weight 0.3 to 2.0 g / m 2, the chemical conversion treatment Nickel-plated steel sheet, Sn and Ni adhesion amount of 0.5-2.0g /
After plating m 2 and 0.1 to 0.5 g / m 2 in the order of Ni and Sn,
Sn / Ni plated steel sheet subjected to chemical conversion treatment, metal Cr adhesion amount 50 to 120 mg / m 2 , Cr oxide oxidation amount 5 to 20 mg / m 2
It is a chromium / chromate treated steel plate generally called TFS (Tin Free Steel).
【００２７】[0027]
【実施例】以下、実施例で本発明の効果を具体的に示
す。 実施例１ 板厚０．２０mm、板幅８３２mmの鋼板の表面に、錫付着
量１．０g/m2、ニッケル付着量０．３g/m2のＳｎ／Ｎｉ
めっきを行い、クロメート処理後、その缶外面相当面
に、白色顔料を含む８μm の熱硬化性エポキシエステル
系塗料をロールコーターで１６２．０mmの幅にて、その
両端に非塗装部１．９mm（合計１６５．８mm）を設け
て、板幅方向に５条の塗装を連続的に行った。EXAMPLES The effects of the present invention will be concretely shown in the following examples. Example 1 Sn / Ni having a tin deposition amount of 1.0 g / m 2 and a nickel deposition amount of 0.3 g / m 2 on the surface of a steel plate having a plate thickness of 0.20 mm and a plate width of 832 mm.
After plating and chromate treatment, the outer surface of the can was coated with 8 μm of a thermosetting epoxy ester-based paint containing a white pigment with a roll coater in a width of 162.0 mm and the uncoated portion 1.9 mm ( A total of 165.8 mm) was provided, and five strips were continuously coated in the width direction of the plate.
【００２８】次いで、この鋼板を熱風炉で加熱して該塗
料の硬化を行わせ、板温１８０℃になったところで缶内
面側に上記塗膜位置と表裏対応するように、低融点接着
剤層を有する厚み１６μm 、幅１６２mmの二軸延伸ポリ
エステルフィルムを板幅方向に５条接着し、更に２００
℃まで加熱した。そして、板温が２００℃になった時点
で、印刷インキ層および潤滑皮膜層を有する厚み１２μ
m の二軸延伸ポリエステルフィルムを、厚み２．５μm
のウレタン系接着剤で、缶外面の白色塗膜面上に、同一
幅で真上に連続的に接着した後、急冷した。Next, the steel sheet is heated in a hot air oven to cure the coating material, and when the plate temperature reaches 180 ° C., a low melting point adhesive layer is formed on the inner surface of the can so that the above coating position corresponds to the front and back. A biaxially stretched polyester film having a thickness of 16 μm and a width of 162 mm, which has a thickness of 5 μm, is bonded in the width direction of the plate,
Heated to ° C. Then, when the plate temperature reached 200 ° C., the thickness including the printing ink layer and the lubricating film layer was 12 μm.
m biaxially oriented polyester film with a thickness of 2.5 μm
The urethane adhesive was used to continuously bond the white coating film on the outer surface of the can with the same width and directly above, and then rapidly cooled.
【００２９】コイル状に巻取られたストライプ状の多層
有機皮膜を有する鋼板から、１６５．８mm幅（缶径５
２．６mm相当、両端に１．９mmの非塗装部を有す）、長
さ１３６．２mm（缶高さ相当）の一缶当たりのブランク
を切出し、印刷面が缶外面になるように溶接缶ラインで
缶胴を製造した。得られた缶胴の外面は、光沢が良く、
色ムラの発生はなかった。又、商標デザインの鮮映性は
現行の鋼板へ直接印刷したスリーピース缶より良好であ
った。From a steel sheet having a striped multi-layered organic film wound into a coil, a width of 165.8 mm (can diameter 5
2.6mm equivalent, with 1.9mm non-painted parts on both ends), 136.2mm long (equivalent to can height), cut out a blank for each can, and weld it so that the printing surface is the outer surface of the can. The can barrel was manufactured on the line. The outer surface of the obtained can body has good gloss,
No uneven color was generated. In addition, the sharpness of the trademark design was better than the current three-piece cans printed directly on the steel plate.
【００３０】こうして得られた缶胴を、現行の製缶ライ
ンで、ネックドイン加工し、更に地蓋を巻締めた後、１
％食塩水を充填し、天蓋を巻締め、１２５℃で３０分レ
トルト処理を行った。その結果、缶外面の被覆層は剥離
がなく、密着性は良好であり、又、外観の変化もなく、
鮮映性は確保されていた。一方、缶内面についても缶胴
部の腐食発生は認められなかった。缶内面については、
その後３８℃で１ケ月保存後に再調査したが、やはり缶
胴部の腐食は確認されなかった。 実施例２ 板厚０．１８mm、板幅８３２mm、付着量０．５３g/m2の
Ｎｉめっき鋼板（クロメート処理）の片面に低融点接着
剤層を有する２５μm の二軸延伸ポリエステルフィルム
を、１６２．０mm幅にてその両端に非塗装部（フィルム
非接着部）１．９mm（合計１６５．８mm）を設けて、板
幅方向に５条のフィルムを板温１８０℃で熱接着し、更
に２００℃まで加熱した。そして、板温が２００℃にな
った時点で、１５μm の二軸延伸ポリエステルフィルム
に、Ｓｉ系微粒子を含むポリエステル系潤滑皮膜を２μ
m 塗布・乾燥後、反対面に商標デザインをグラビア印刷
したフィルムを、厚み１．５μm のウレタン系接着剤
で、先行して積層された２５μm の二軸延伸ポリエステ
ルフィルムと表裏対応する位置関係に連続的に接着し、
急冷・乾燥し、コイル状に巻取った。The can body thus obtained was subjected to necked-in processing in the existing can making line, and after further winding up the bottom cover, 1
% Saline solution, the canopy was wound, and retort treatment was performed at 125 ° C. for 30 minutes. As a result, the coating layer on the outer surface of the can did not peel off, the adhesion was good, and the appearance did not change,
The sharpness was secured. On the other hand, no corrosion of the body of the can was observed on the inner surface of the can. For the inside of the can,
After that, the product was stored again at 38 ° C. for one month and then re-examined, but no corrosion of the body of the can was confirmed. Example 2 A 25 μm biaxially stretched polyester film having a low melting point adhesive layer on one side of a Ni-plated steel plate (chromate treatment) having a plate thickness of 0.18 mm, a plate width of 832 mm, and an adhesion amount of 0.53 g / m 2 was prepared as 162. A non-painted area (film non-adhesive area) of 1.9 mm (total of 165.8 mm) is provided at both ends with a width of 0 mm, and five strips of film are heat-adhered at a board temperature of 180 ° C in the width direction, and further 200 ° C. Heated up. Then, when the plate temperature reached 200 ° C., a 2 μm polyester lubrication film containing Si fine particles was added to a 15 μm biaxially stretched polyester film.
m After coating and drying, the film with the trademark design gravure printed on the opposite side is continuous with the 25 μm biaxially stretched polyester film previously laminated with the 1.5 μm thick urethane adhesive in a positional relationship corresponding to the front and back. Adhesively,
It was quenched, dried and wound into a coil.
【００３１】実施例１と同様の工程にて、溶接缶を製造
し、コーヒーを充填後、１２０℃で１５分レトルト処理
を行った。得られた缶体の外観は、光沢が良く、色ムラ
等の発生は認められなかった。又、商標デザインの鮮映
性は現行スリーピース缶より良好であった。一方、缶内
面についても、缶胴部の腐食発生は認められなかった。
缶内面については、その後３８℃で３ケ月保存後に再調
査したが、やはり缶胴部の腐食は確認されなかった。In the same process as in Example 1, a welded can was produced, filled with coffee, and then subjected to retort treatment at 120 ° C. for 15 minutes. The appearance of the obtained can body had good gloss and no unevenness in color was observed. In addition, the sharpness of the trademark design was better than that of the current three-piece can. On the other hand, no corrosion of the body of the can was observed on the inner surface of the can.
The inner surface of the can was then re-examined after storage at 38 ° C. for 3 months, but no corrosion of the barrel of the can was confirmed.
【００３２】実施例３ 実施例１と同一の鋼板を用い、片面に膜厚５μのエポキ
シ塗料を、他方の面には白色顔料を含む１０μm の熱硬
化性ポリエステル塗料を、各々表裏対応する位置関係
に、塗装部１６２．０mm、その両端に非塗装部１．９mm
（合計１６５．８mm）を設け、板幅方向に５条のコイル
塗装を連続的に行った。次いで、この塗装鋼板を熱風炉
で加熱・乾燥し、缶外面側として使用される熱硬化性ポ
リエステル塗料上に、接着剤層／印刷インキ層／フィル
ム層／潤滑皮膜層の４層より成る多層構造フィルムを、
１６２．０mm幅に重なるように積層した。１６２．０mm
幅のフィルムは、幅方向５条同時に積層した。Example 3 The same steel plate as in Example 1 was used, with an epoxy paint having a film thickness of 5 μm on one side and a thermosetting polyester paint of 10 μm containing a white pigment on the other side, which correspond to the front and back sides. The painted part is 162.0 mm, and the unpainted part is 1.9 mm on both ends.
(165.8 mm in total) was provided, and 5 strips of coil coating were continuously applied in the plate width direction. Next, this coated steel sheet is heated and dried in a hot air oven to form a multilayer structure consisting of four layers of an adhesive layer / printing ink layer / film layer / lubrication film layer on a thermosetting polyester coating used as the outer surface of a can. Film
It was laminated so as to overlap with a 162.0 mm width. 162.0 mm
The width film was laminated at the same time in the width direction by 5 strips.
【００３３】実施例１と同様の工程にて、溶接缶を製造
し、トマトジュースを充填後、１２５℃で３０分レトル
ト処理を行った。得られた缶体の外観は、光沢良く、色
ムラ等の発生は認められなかった。又、商標デザインの
鮮映性は現行スリーピース缶より良好であった。一方、
缶内面についても、缶胴部の腐食発生は認められなかっ
た。缶内面については、その後３８℃で３ケ月保存後に
再調査したが、やはり缶胴部の腐食は確認されなかっ
た。In the same process as in Example 1, a welded can was manufactured, filled with tomato juice, and then subjected to retort treatment at 125 ° C. for 30 minutes. The appearance of the obtained can was good in gloss and no occurrence of color unevenness was observed. In addition, the sharpness of the trademark design was better than that of the current three-piece can. on the other hand,
No corrosion of the body of the can was observed on the inner surface of the can. The inner surface of the can was then re-examined after storage at 38 ° C. for 3 months, but no corrosion of the barrel of the can was confirmed.
【００３４】[0034]
【発明の効果】本発明は多くの利点を保障するものであ
る。幅広コイルを使用し、高速ラインにて連続塗装印刷
を行うことが可能になり、従来の切板塗装ラインより約
２倍の生産性を確保することができる。次に、多数回の
ライン通板が不要なため仕掛り期間が短くて済む。コイ
ル製品の使用は素材板厚が極薄化してもそう大きなハン
ドリング問題を生じない利点をも有している。グラビア
印刷による印刷外観の高級化、工程省略による省力化
等、従来のスリーピース缶用鋼板の塗装印刷工程におけ
る問題を一挙に解決することができる。The invention guarantees many advantages. By using a wide coil, it is possible to perform continuous coating printing on a high-speed line, and it is possible to secure about twice the productivity of the conventional cut plate coating line. Secondly, the work-in-process period can be shortened because it is not necessary to carry out the line threading many times. The use of coil products also has the advantage that even if the material plate is extremely thin, it does not cause such a great handling problem. It is possible to solve all the problems in the conventional coating and printing process of a steel plate for a three-piece can, such as high quality printing by gravure printing and labor saving by omitting the process.
フロントページの続き (72)発明者 大八木 八七 千葉県富津市新富20−１ 新日本製鐵株式 会社中央研究本部内 (72)発明者 林 知彦 千葉県富津市新富20−１ 新日本製鐵株式 会社中央研究本部内Front page continuation (72) Inventor Oyagi Yachichi 20-1 Shintomi, Futtsu-shi, Chiba Nippon Steel Co., Ltd. Central Research Division (72) Inventor Tomohiko Hayashi 20-1 Shintomi, Futtsu-shi, Chiba Nippon Steel Co., Ltd. Company Central Research Division
Claims (5)
の長手方向に連続的に、缶径に対応する幅よりわずかに
狭い幅の熱硬化性塗膜層および／または熱可塑性樹脂フ
ィルム層が、幅方向に１〜１０mm幅の非塗装部を介して
存在し、もう片方の面（缶外面相当）には、商標デザイ
ンを表示した印刷インキ層を有する熱可塑性樹脂フィル
ム層を表裏対応する位置に有することを特徴とするスト
ライプ状の多層有機皮膜を有するスリーピース缶用鋼
板。1. A thermosetting coating layer and / or a thermoplastic resin film on one surface of a steel plate (corresponding to the inner surface of a can) continuously in the longitudinal direction of the steel plate and having a width slightly narrower than the width corresponding to the can diameter. The layer exists through a non-painted portion with a width of 1 to 10 mm in the width direction, and the other surface (corresponding to the outer surface of the can) is provided with a thermoplastic resin film layer having a printing ink layer with a trademark design on both sides. A steel plate for a three-piece can having a striped multi-layered organic film, which is characterized in that
ィルムが、厚さ５〜５０μm のポリプロピレンフィル
ム、ナイロンフィルム、ポリエステルフィルム等の熱可
塑性樹脂フィルムであることを特徴とする請求項１記載
のストライプ状の多層有機皮膜を有するスリーピース缶
用鋼板。2. The stripe according to claim 1, wherein the film laminated on the surface of the steel plate corresponding to the inner surface of the can is a thermoplastic resin film such as a polypropylene film, a nylon film or a polyester film having a thickness of 5 to 50 μm. Steel sheet for three-piece cans with a multi-layered organic coating.
ィルム基体がポリエステル樹脂フィルムであることを特
徴とする請求項１記載のストライプ状の多層有機皮膜を
有するスリーピース缶用鋼板。3. The steel plate for a three-piece can having a striped multi-layer organic coating according to claim 1, wherein the film substrate laminated on the surface of the steel plate which is the outer surface of the can is a polyester resin film.
ィルムが、接着剤層／印刷インキ層／基体フィルム層／
潤滑皮膜層あるいは接着剤層／基体フィルム層／印刷イ
ンキ層／潤滑皮膜層の多層構造を有することを特徴とす
る請求項１記載のストライプ状の多層有機皮膜を有する
スリーピース缶用鋼板。4. The adhesive layer / printing ink layer / base film layer /
The steel sheet for a three-piece can having a striped multi-layer organic coating according to claim 1, which has a multi-layer structure of a lubricating coating layer or an adhesive layer / a base film layer / a printing ink layer / a lubricating coating layer.
を含有する熱硬化性塗膜を下地に有し、その上層に商標
デザインを表示する印刷インキ層を持った熱可塑性樹脂
フィルム層を有することを特徴とする請求項１記載のス
トライプ状の多層有機皮膜を有するスリーピース缶用鋼
板。5. A thermoplastic resin film having a thermosetting coating film containing a pigment in an amount of 0 to 30% by weight as a base on the surface corresponding to the outer surface of a can, and a printing ink layer for displaying a trademark design as an upper layer. A steel sheet for a three-piece can having a striped multilayer organic coating according to claim 1, which has a layer.
Priority Applications (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11349691A JP2998042B2 (en) | 1991-05-17 | 1991-05-17 | Steel plate for three-piece cans with a striped multilayer organic coating |
| AU16328/92A AU652630B2 (en) | 1991-05-17 | 1992-05-15 | Steel strip for three-piece can body, production process thereof and resistance seam welded three-piece can body |
| CA002068829A CA2068829C (en) | 1991-05-17 | 1992-05-15 | Steel strip for three-piece can body, production process thereof and resistance seam welded three-piece can body |
| EP92304458A EP0521606B1 (en) | 1991-05-17 | 1992-05-18 | Steel strip for three-piece can body, production process thereof and resistance seam welded three-piece can body |
| DE69206499T DE69206499T2 (en) | 1991-05-17 | 1992-05-18 | Steel strip for a three-part can body, process for its manufacture and resistance-welded three-part can body. |
| US08/463,465 US5820954A (en) | 1991-05-17 | 1995-06-05 | Steel strip for three-piece can body, production process thereof and resistance seam welded three-piece can body |
| US08/470,684 US5597436A (en) | 1991-05-17 | 1995-06-06 | Process for producing a print laminated steel strip used for the manufacture of a three-piece can body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11349691A JP2998042B2 (en) | 1991-05-17 | 1991-05-17 | Steel plate for three-piece cans with a striped multilayer organic coating |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05111979A true JPH05111979A (en) | 1993-05-07 |
| JP2998042B2 JP2998042B2 (en) | 2000-01-11 |
Family
ID=14613791
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11349691A Expired - Lifetime JP2998042B2 (en) | 1991-05-17 | 1991-05-17 | Steel plate for three-piece cans with a striped multilayer organic coating |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2998042B2 (en) |
Cited By (6)
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|---|---|---|---|---|
| WO2007111354A1 (en) | 2006-03-29 | 2007-10-04 | Nippon Steel Corporation | Steel sheet for containers |
| WO2008029916A1 (en) | 2006-09-08 | 2008-03-13 | Nippon Steel Corporation | Steel plate for container, and method for production thereof |
| WO2010140711A1 (en) | 2009-06-04 | 2010-12-09 | 新日本製鐵株式会社 | Steel sheet for containers which exhibits excellent performance for organic layers and process for production thereof |
| WO2011118588A1 (en) | 2010-03-23 | 2011-09-29 | 新日本製鐵株式会社 | Steel sheet for container and method for producing same |
| US9127341B2 (en) | 2011-01-18 | 2015-09-08 | Nippon Steel & Sumitomo Metal Corporation | Steel sheet for container having excellent organic film performance and process for producing the same |
| US9212428B2 (en) | 2010-06-29 | 2015-12-15 | Nippon Steel & Sumitomo Metal Corporation | Steel sheet for container and method of manufacturing the same |
-
1991
- 1991-05-17 JP JP11349691A patent/JP2998042B2/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007111354A1 (en) | 2006-03-29 | 2007-10-04 | Nippon Steel Corporation | Steel sheet for containers |
| WO2008029916A1 (en) | 2006-09-08 | 2008-03-13 | Nippon Steel Corporation | Steel plate for container, and method for production thereof |
| WO2010140711A1 (en) | 2009-06-04 | 2010-12-09 | 新日本製鐵株式会社 | Steel sheet for containers which exhibits excellent performance for organic layers and process for production thereof |
| KR20140090692A (en) | 2009-06-04 | 2014-07-17 | 신닛테츠스미킨 카부시키카이샤 | Steel sheet for containers which exhibits excellent performance for organic layers and process for production thereof |
| US9212423B2 (en) | 2009-06-04 | 2015-12-15 | Nippon Steel & Sumitomo Metal Corporation | Steel sheet for container use with excellent organic film performance and method of production of same |
| WO2011118588A1 (en) | 2010-03-23 | 2011-09-29 | 新日本製鐵株式会社 | Steel sheet for container and method for producing same |
| US9212428B2 (en) | 2010-06-29 | 2015-12-15 | Nippon Steel & Sumitomo Metal Corporation | Steel sheet for container and method of manufacturing the same |
| US9127341B2 (en) | 2011-01-18 | 2015-09-08 | Nippon Steel & Sumitomo Metal Corporation | Steel sheet for container having excellent organic film performance and process for producing the same |
| US9752222B2 (en) | 2011-01-18 | 2017-09-05 | Nippon Steel & Sumitomo Metal Corporation | Steel sheet for container having excellent organic film performance and process for producing the same |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2998042B2 (en) | 2000-01-11 |
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