JPH07197272A - Surface treated aluminum and aluminum alloy plate excellent in film adhesibility - Google Patents
Surface treated aluminum and aluminum alloy plate excellent in film adhesibilityInfo
- Publication number
- JPH07197272A JPH07197272A JP5352099A JP35209993A JPH07197272A JP H07197272 A JPH07197272 A JP H07197272A JP 5352099 A JP5352099 A JP 5352099A JP 35209993 A JP35209993 A JP 35209993A JP H07197272 A JPH07197272 A JP H07197272A
- Authority
- JP
- Japan
- Prior art keywords
- film
- aluminum
- aluminum alloy
- alloy plate
- treatment
- 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.)
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- Chemical Treatment Of Metals (AREA)
- ing And Chemical Polishing (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明はフィルム密着性に優れた
表面処理アルミニウム合金板に関するものである。FIELD OF THE INVENTION The present invention relates to a surface-treated aluminum alloy sheet having excellent film adhesion.
【０００２】[0002]
【従来の技術及び発明が解決しようとする課題】アルミ
ニウム板及びアルミニウム合金板は、軽量、成形性、耐
食性等に優れるという特性から包装容器、日用品、建
材、電気製品の側板の材料として広く用いられている。
そして、それらの多くは、実用に際して、材料の塗膜密
着性向上、耐食性向上及び装飾性を目的として、表面処
理と樹脂皮膜が施されている。包装容器も同様であり、
アルミニウム材を包装容器に用いる場合には、容器に成
形する前、或いは容器に成形した後、アルミニウム材の
表面を燐酸クロメート処理或いはジルコニウム系表面処
理を施し、その後、樹脂層で被覆することが行われてい
る。2. Description of the Related Art Aluminum plates and aluminum alloy plates are widely used as materials for side plates of packaging containers, daily necessities, building materials, and electric appliances due to their characteristics such as light weight, moldability, and corrosion resistance. ing.
Many of them are subjected to surface treatment and resin coating in practical use for the purpose of improving coating adhesion of materials, improving corrosion resistance, and decorativeness. The same applies to packaging containers,
When an aluminum material is used in a packaging container, the surface of the aluminum material may be subjected to phosphoric acid chromate treatment or zirconium-based surface treatment before or after being formed into a container and then covered with a resin layer. It is being appreciated.
【０００３】かゝる技術で用いられる被覆方法として
は、エポキシ系、フェノール系、或いは塩化ビニル系等
の樹脂を適当な溶剤に溶解又は分散させてなる塗工液
を、予め燐酸クロメート処理或いはジルコニウム系表面
処理を施したアルミニウム材表面に塗布し、その後、加
熱により溶剤の除去及び樹脂層の硬化を行って金属素材
の表面に樹脂皮膜を形成する方法が行われている。As a coating method used in such a technique, a coating solution prepared by dissolving or dispersing an epoxy-based resin, a phenol-based resin, a vinyl chloride-based resin or the like in an appropriate solvent is treated with phosphoric acid chromate or zirconium in advance. There is a method in which a resin film is formed on the surface of a metal material by applying it to the surface of an aluminum material that has been subjected to a system surface treatment, then removing the solvent by heating and curing the resin layer.
【０００４】しかし、このような溶剤の除去を伴う塗膜
形成は、環境汚染対策をしなければならなく、また溶剤
を除去し塗料を焼き付けるための加熱炉も長くする必要
があり、溶剤を使用しない樹脂皮膜方法が望まれてい
る。However, the formation of a coating film accompanied by the removal of such a solvent requires environmental pollution countermeasures, and it is necessary to lengthen the heating furnace for removing the solvent and baking the paint. There is a demand for a resin coating method that does not.
【０００５】そのような溶剤を使用しない樹脂皮膜方法
の一つとして、金属素材の表面に樹脂フィルムをラミネ
ートする方法があり、特に金属素材を使用する樹脂フィ
ルムの溶融温度近く或いは溶融温度以上に加熱し、この
加熱された金属素材上に樹脂フィルムを供給し、プレス
ローラー等を使用して金属素材上にフィルムを加圧下で
融着させる熱融着ラミネーション法は、溶剤を使用しな
い樹脂被覆方法として注目をあびている。しかし、この
フィルムラミネート方式においても、フィルムの密着性
を強固な物とするため及び耐食性の点から、金属素材に
は表面処理が必要である。As one of the resin coating methods that does not use such a solvent, there is a method of laminating a resin film on the surface of a metal material, and in particular, heating at a temperature near or above the melting temperature of the resin film using the metal material. Then, supplying a resin film on the heated metal material, the heat fusion lamination method of fusing the film on the metal material under pressure using a press roller or the like is a resin coating method without using a solvent. Attracting attention. However, even in this film laminating method, the metal material needs a surface treatment in order to make the adhesion of the film strong and from the viewpoint of corrosion resistance.
【０００６】一方、アルミニウム材の表面処理法として
は、種々の方法が知られており、べーマイト処理、陽極
酸化処理、燐酸クロメート処理及びクロム酸クロメート
処理が代表的である。これらの表面処理は種々の用途に
要求されている特性に応じて適宜使用されているが、包
装容器の蓋材には、塗膜密着性、耐食性、食品衛生性、
大量生産性の点から燐酸クロメート処理が使用されてい
る。On the other hand, various methods are known as surface treatment methods for aluminum materials, and typical examples thereof include boehmite treatment, anodizing treatment, phosphoric acid chromate treatment and chromate chromate treatment. These surface treatments are appropriately used according to the properties required for various uses, but for the lid material of the packaging container, coating film adhesion, corrosion resistance, food hygiene,
The phosphoric acid chromate treatment is used in terms of mass productivity.
【０００７】しかし、通常、実施されている燐酸クロメ
ート処理を施したアルミニウム材を用いて、ポリエステ
ルフィルムをフィルムの熱による融解と接着性を利用し
てラミネートしたアルミニウム板のフィルム密着性を調
査した結果、板を加工しない場合の密着性は良好であっ
ても、絞り加工、張り出し加工を行った後に、熱水中や
蒸気中に暴露されるとフィルムが剥離し、高温充填やレ
トルト殺菌される包装容器、自動販売機などのベンダー
の中で高温保管される包装容器の材料として適していな
いことがわかった。[0007] However, as a result of investigating the film adhesion of an aluminum plate obtained by laminating a polyester film by utilizing the melting and adhesiveness of the film due to heat, the aluminum material that has been generally subjected to phosphoric acid chromate treatment is used. Even if the adhesiveness is good when the plate is not processed, the film peels off when exposed to hot water or steam after drawing and overhanging, and is subjected to high temperature filling and retort sterilization. It was found that it is not suitable as a material for packaging containers that are stored at high temperatures in vendors such as containers and vending machines.
【０００８】本発明は、このような現状に鑑みなされた
ものであり、特にフィルム密着性に優れた表面処理アル
ミニウム及びアルミニウム合金板を提供することを目的
としている。The present invention has been made in view of the above circumstances, and it is an object of the present invention to provide a surface-treated aluminum and aluminum alloy plate having excellent film adhesion.
【０００９】[0009]
【課題を解決するための手段】前記課題を解決するため
の手段として、本発明は、アルミニウム及びアルミニウ
ム合金板表面が、平坦部が１０％未満で、かつ表面積が
１cm角当たり５cm2以上となるように粗面化されてお
り、該粗面化表面上に燐酸クロメート処理皮膜が設けら
れていることを特徴とするフィルム密着性に優れた表面
処理アルミニウム及びアルミニウム合金板を要旨として
いる。Means for Solving the Problems As means for solving the above problems, according to the present invention, the surface of aluminum and aluminum alloy plate has a flat portion of less than 10% and a surface area of 5 cm 2 or more per 1 cm square. Thus, the gist is a surface-treated aluminum or aluminum alloy plate having excellent film adhesion, which is characterized in that it is roughened and a phosphoric acid chromate treatment film is provided on the roughened surface.
【００１０】[0010]
【作用】以下に本発明を更に詳細に説明する。なお、ア
ルミニウム板及びアルミニウム合金板を総称してアルミ
ニウム合金板という。The present invention will be described in more detail below. The aluminum plate and the aluminum alloy plate are collectively referred to as an aluminum alloy plate.
【００１１】フィルムの接着は、主に下記の３種類の結
合力に依るところが大きい。 （１）機械的結合力 （２）化学結合力 （３）分子間力The adhesion of the film largely depends on the following three kinds of bonding forces. (1) Mechanical binding force (2) Chemical binding force (3) Intermolecular force
【００１２】フィルムとアルミニウム合金板の密着性を
向上させるためには、上記の３種類の結合力のいずれか
を向上させる必要がある。In order to improve the adhesion between the film and the aluminum alloy plate, it is necessary to improve any one of the above-mentioned three types of bonding force.
【００１３】本発明は、フィルムとアルミニウム合金板
の密着性向上を機械的結合力の向上により実現したもの
である。ここで、機械的結合力とは、アンカー効果とも
呼ばれ、基材の突起などにフィルムが引っかかって生じ
る力のことである。The present invention realizes the improvement of the adhesion between the film and the aluminum alloy plate by improving the mechanical bonding force. Here, the mechanical coupling force is also called an anchor effect, and is a force generated when a film is caught on a protrusion or the like of a base material.
【００１４】すなわち、予めアルミニウム合金表面を粗
面化し、次いで燐酸クロメート処理を設けることによ
り、フィルム密着性向上の効果が得られる。その場合、
粗面化したアルミニウム合金板表面は、平坦部が１０％
未満で、かつ表面積が１cm角当たり５cm2以上となるよ
うにすることが重要である。平坦部の割合が１０％以上
の場合は所望の効果が得られず、また、表面積が１cm角
当たり５cm2未満でも所望の効果が得られない。That is, the effect of improving the film adhesion can be obtained by roughening the aluminum alloy surface in advance and then providing the phosphoric acid chromate treatment. In that case,
The surface of the roughened aluminum alloy plate has a flat portion of 10%.
It is important that the surface area is less than 5 cm 2 per 1 cm square. When the proportion of the flat portion is 10% or more, the desired effect cannot be obtained, and even when the surface area is less than 5 cm 2 per 1 cm 2 , the desired effect cannot be obtained.
【００１５】粗面化の方法としては、均一でかつ微細な
窪みが多数得られる電解電流を使用した電解エッチン
グ、或いは化学反応を利用した化学エッチングが最も適
している。また、その他の方法としてブラシ研磨等の物
理的な粗面化方法も利用可能である。これらの処理条件
を適宜調節することによつて、上記の粗面化が容易に得
られる。The most suitable method for roughening the surface is electrolytic etching using an electrolytic current capable of obtaining a large number of uniform and fine depressions, or chemical etching utilizing a chemical reaction. As another method, a physical surface roughening method such as brush polishing can be used. By appropriately adjusting these processing conditions, the above-mentioned surface roughening can be easily obtained.
【００１６】そして、粗面化後に燐酸クロメート処理皮
膜を形成する。皮膜厚さは適宜決められる。また燐酸ク
ロメート処理の処理液は特に限定されず、濃度管理が容
易な処理条件を選択することが可能である。After the roughening, a phosphoric acid chromate treatment film is formed. The film thickness is appropriately determined. Further, the treatment liquid for the phosphoric acid chromate treatment is not particularly limited, and it is possible to select treatment conditions in which the concentration control is easy.
【００１７】なお、本発明におけるアルミニウム合金の
材質及び厚さ等については、前述の種々の用途に応じた
成分系及び組成、厚さが決められる。Regarding the material, thickness, etc. of the aluminum alloy in the present invention, the component system, composition and thickness are determined according to the above-mentioned various uses.
【００１８】次に本発明の実施例を示す。Next, examples of the present invention will be described.
【００１９】[0019]
【実施例１】予め脱脂されたＪＩＳ Ａ５０５２Ｐ(質別
Ｈ１８)、厚さ０.２５mmの板材を使用し、温度７０℃、
塩化鉄２０％の水溶液に３分間浸漬し化学エッチングし
た後、表１に示す燐酸クロメート処理液を使用して処理
を行った。得られた燐酸クロメート処理材を使用し、ア
ルミニウム合金板の到達温度が１９０℃になるように加
熱後直ちに熱可塑性ポリエステル(結晶溶融点１８０
℃、ガラス転移点５８℃、厚さ２０μm)をゴムロールで
圧着しラミネートした。[Example 1] Using a pre-degreased JIS A5052P (tempered H18) plate having a thickness of 0.25 mm, a temperature of 70 ° C,
After dipping in an aqueous solution of 20% iron chloride for 3 minutes for chemical etching, the phosphoric acid chromate treatment liquid shown in Table 1 was used for treatment. Using the obtained phosphoric acid chromate treated material, a thermoplastic polyester (crystal melting point 180
C., glass transition point 58.degree. C., thickness 20 .mu.m) were pressed and laminated with a rubber roll.
【００２０】フィルム密着性の評価は、得られたラミネ
ート板を絞り比１.８で絞り加工した後、レトルト処理
(１２５℃、３０分間間蒸気中)を行い、フィルム剥離状
態を目視で評価した。The film adhesion was evaluated by subjecting the obtained laminated plate to a drawing process with a drawing ratio of 1.8, and then performing a retort treatment.
(125 ° C., steam for 30 minutes) was performed, and the peeled state of the film was visually evaluated.
【００２１】ここで、平坦部の割合は、倍率１０００倍
で撮影した電子顕微鏡写真から算出した。具体的には、
写真(実面積１００μm2)を碁盤目状に１００分割(１マ
ス１μm角)し、粗面化処理により溶解を受けなかった部
分があるマス目を平坦部とみなし、その数の割合を平坦
部の割合とした。表面積はＢＥＴ法により求めた値であ
る。Here, the proportion of the flat portion was calculated from an electron micrograph taken at a magnification of 1000 times. In particular,
A photograph (actual area 100 μm 2 ) is divided into 100 grids (1 square 1 μm square), and the squares that have not been melted by the roughening treatment are considered to be flat areas. And the ratio. The surface area is a value obtained by the BET method.
【００２２】表１に示すように、レトルト処理後もフィ
ルム剥離は認められず良好な密着性を示した。As shown in Table 1, no peeling of the film was observed even after the retort treatment and good adhesion was exhibited.
【００２３】[0023]
【実施例２】実施例１における前処理(化学エッチング)
において温度７０℃、塩化鉄２０％の水溶液への浸漬時
間を１分間に変更した他は、実施例１と同様である。表
１に示すように、レトルト処理後もフィルム剥離はみら
れず良好な密着性を示した。Second Embodiment Pretreatment in First Embodiment (Chemical Etching)
The same as Example 1 except that the temperature was 70 ° C. and the immersion time in an aqueous solution of 20% iron chloride was changed to 1 minute. As shown in Table 1, no peeling of the film was observed even after the retort treatment and good adhesion was exhibited.
【００２４】[0024]
【実施例３】実施例１における前処理(化学エッチング)
に代えて、温度７０℃の塩酸５％水溶液中で電流密度５
００mＡ／cm2で２分間直流電解エッチングを行った他
は、実施例１と同様である。表１に示すように、レトル
ト処理後もフィルム剥離はみられず良好な密着性を示し
た。Third Embodiment Pretreatment in First Embodiment (Chemical Etching)
Instead of, the current density 5
Same as Example 1 except that direct current electrolytic etching was performed at 00 mA / cm 2 for 2 minutes. As shown in Table 1, no peeling of the film was observed even after the retort treatment and good adhesion was exhibited.
【００２５】[0025]
【実施例４】実施例３における前処理(電解エッチング)
において電解時間を３０秒に変更した他は、実施例３と
同様である。表１に示すように、レトルト処理後もフィ
ルム剥離はみられず良好な密着性を示した。Example 4 Pretreatment in Example 3 (electrolytic etching)
The same as Example 3 except that the electrolysis time was changed to 30 seconds. As shown in Table 1, no peeling of the film was observed even after the retort treatment and good adhesion was exhibited.
【００２６】[0026]
【比較例１】予め脱脂されたＪＩＳ Ａ５０５２Ｐ(質別
Ｈ１８)、厚さ０.２５mmの板材を使用し、粗面化処理を
せず、アルカリ性エッチング浴(０.２Ｎ、ＮaＯＨ７０
℃、５秒)で表面の酸化皮膜等を除去してから、表１に
示す燐酸クロメート処理液を使用し処理を行った他は、
実施例と同様である。表１に示すように、レトルト処理
後にフィルム剥離が見られた。[Comparative Example 1] A pre-degreased JIS A5052P (tempered H18) plate having a thickness of 0.25 mm was used, and the surface was not roughened, and an alkaline etching bath (0.2 N, NaOH 70
(5 ° C., 5 seconds) after removing the oxide film on the surface, and then treating with the phosphoric acid chromate treatment liquid shown in Table 1, except that
It is similar to the embodiment. As shown in Table 1, peeling of the film was observed after the retort treatment.
【００２７】[0027]
【比較例２】実施例１における前処理(化学エッチング)
において温度７０℃、塩化鉄２０％の水溶液への浸漬時
間を１０秒に変更した他は、実施例１と同様である。表
１に示すように、レトルト処理後にフィルム剥離が見ら
れた。Comparative Example 2 Pretreatment in Example 1 (chemical etching)
The same as Example 1 except that the temperature was 70 ° C. and the immersion time in an aqueous solution of 20% iron chloride was changed to 10 seconds. As shown in Table 1, peeling of the film was observed after the retort treatment.
【００２８】[0028]
【比較例３】実施例３における前処理(電解エッチング)
において電解時間を１０秒に変更した他は、実施例３と
同様である。表１に示すように、レトルト処理後にフィ
ルム剥離が見られた。Comparative Example 3 Pretreatment in Example 3 (electrolytic etching)
The same as Example 3 except that the electrolysis time was changed to 10 seconds. As shown in Table 1, peeling of the film was observed after the retort treatment.
【００２９】[0029]
【比較例４】実施例１において化学エッチング後、燐酸
クロメート処理を実施しなかった他は、実施例１と同様
である。表１に示すように、レトルト処理後にフィルム
剥離が見られた。Comparative Example 4 The same as Example 1 except that the phosphoric acid chromate treatment was not carried out after the chemical etching in Example 1. As shown in Table 1, peeling of the film was observed after the retort treatment.
【００３０】[0030]
【比較例５】実施例３において電解エッチング後、燐酸
クロメート処理を実施しなかった他は、実施例３と同様
である。表１に示すように、レトルト処理後にフィルム
剥離が見られた。Comparative Example 5 The same as Example 3 except that after the electrolytic etching, the phosphoric acid chromate treatment was not carried out. As shown in Table 1, peeling of the film was observed after the retort treatment.
【００３１】[0031]
【表１】 [Table 1]
【００３２】[0032]
【発明の効果】以上詳述したように、本発明の表面処理
アルミニウム及びアルミニウム合金板は、熱水中或は水
蒸気暴露された場合においても優れた密着性を示す、各
種の包装容器材料としてばかりでなく、フィルムラミネ
ートして使用される日用品、建材、電気製品の側板等に
広く適用することができるという優れた効果を有するも
のである。As described in detail above, the surface-treated aluminum and aluminum alloy sheet of the present invention is not only used as various packaging container materials that exhibit excellent adhesion even when exposed to hot water or steam. In addition, it has an excellent effect that it can be widely applied to daily necessities used for film lamination, building materials, side plates of electric products, and the like.
Claims (1)
面が、平坦部が１０％未満で、かつ表面積が１cm角当た
り５cm2以上となるように粗面化されており、該粗面化
表面上に燐酸クロメート処理皮膜が設けられていること
を特徴とするフィルム密着性に優れた表面処理アルミニ
ウム及びアルミニウム合金板。1. A surface of an aluminum or aluminum alloy plate is roughened so that a flat portion is less than 10% and a surface area is 5 cm 2 or more per 1 cm square, and chromate phosphate chromate is formed on the roughened surface. A surface-treated aluminum or aluminum alloy plate having excellent film adhesion, which is provided with a treatment film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5352099A JPH07197272A (en) | 1993-12-29 | 1993-12-29 | Surface treated aluminum and aluminum alloy plate excellent in film adhesibility |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5352099A JPH07197272A (en) | 1993-12-29 | 1993-12-29 | Surface treated aluminum and aluminum alloy plate excellent in film adhesibility |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH07197272A true JPH07197272A (en) | 1995-08-01 |
Family
ID=18421776
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5352099A Pending JPH07197272A (en) | 1993-12-29 | 1993-12-29 | Surface treated aluminum and aluminum alloy plate excellent in film adhesibility |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH07197272A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8980045B2 (en) | 2007-05-30 | 2015-03-17 | Applied Materials, Inc. | Substrate cleaning chamber and components |
| US9068273B2 (en) | 2002-11-25 | 2015-06-30 | Quantum Global Technologies LLC | Electrochemical removal of tantalum-containing materials |
| US9127362B2 (en) | 2005-10-31 | 2015-09-08 | Applied Materials, Inc. | Process kit and target for substrate processing chamber |
| US9481608B2 (en) | 2005-07-13 | 2016-11-01 | Applied Materials, Inc. | Surface annealing of components for substrate processing chambers |
-
1993
- 1993-12-29 JP JP5352099A patent/JPH07197272A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9068273B2 (en) | 2002-11-25 | 2015-06-30 | Quantum Global Technologies LLC | Electrochemical removal of tantalum-containing materials |
| US9481608B2 (en) | 2005-07-13 | 2016-11-01 | Applied Materials, Inc. | Surface annealing of components for substrate processing chambers |
| US9127362B2 (en) | 2005-10-31 | 2015-09-08 | Applied Materials, Inc. | Process kit and target for substrate processing chamber |
| US10347475B2 (en) | 2005-10-31 | 2019-07-09 | Applied Materials, Inc. | Holding assembly for substrate processing chamber |
| US11658016B2 (en) | 2005-10-31 | 2023-05-23 | Applied Materials, Inc. | Shield for a substrate processing chamber |
| US8980045B2 (en) | 2007-05-30 | 2015-03-17 | Applied Materials, Inc. | Substrate cleaning chamber and components |
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