8079 アルミ箔: A Comprehensive Guide to Properties, アプリケーション, and Advantages

1. 導入

Aluminum foil is a cornerstone of modern packaging and industrial manufacturing, prized for its lightweight nature, 優れたバリア特性, 耐食性, and full recyclability. It finds widespread use in food and pharmaceutical packaging, household products, battery materials, and industrial insulation.

Among various alloys, 8079 アルミホイル stands out for its exceptional flexibility, high barrier performance, and superior formability. It strikes an ideal balance between strength and ductility, making it particularly suitable for demanding flexible packaging applications.

今日, 8079 foil is extensively used in:

Pharmaceutical blister packaging
Food flexible packaging and retort pouches
Aseptic packaging
家庭用ホイル
Battery soft packaging
Industrial laminates

Its excellent deep-drawing capability and low pinhole rate make 8079 the preferred material for manufacturers seeking reliable, high-performance, and sustainable packaging solutions.

2. What Is 8079 アルミ箔?

8079 aluminum foil belongs to the 8xxx series aluminum alloys, specifically engineered for high-performance packaging applications. This alloy is characterized by:

Excellent flexibility and high elongation
Superior moisture and gas barrier properties
Good puncture resistance
Outstanding formability for complex shapes

に比べ 8011 そして 8021 ホイル, 8079 offers a more balanced combination of mechanical strength and ductility, making it exceptionally reliable in multi-layer laminates and critical pharmaceutical packaging structures.

3. 化学組成

The performance of 8079 alloy stems from its carefully controlled chemical composition, which ensures mechanical stability and optimal processing.

Standard Chemical Composition (で 573-3)

要素	典型的な範囲 (%)	Primary Function
シリコン (そして)	0.05 – 0.30	Enhances strength and rolling stability
鉄 (鉄)	0.70 – 1.30	Improves toughness and puncture resistance
亜鉛 (亜鉛)	≤ 0.10	Contributes to corrosion resistance
その他 (Each)	≤ 0.05	Impurity control
その他 (Total)	≤ 0.15	Maintains alloy purity
アルミニウム (アル)	Balance	Provides base ductility and lightweight properties

Key Metallurgical Characteristics:

High Ductility: Withstands deep drawing and complex forming without cracking.
Excellent Barrier Reliability: Stable structure minimizes rolling-induced pinholes, ensuring superior protection against moisture and oxygen.
Balanced Mechanical Strength: Offers better flexibility than 8011 foil while maintaining stronger puncture resistance than ultra-pure 1235 ホイル.

4. 物理的特性

8079 aluminum foil combines lightweight advantages with excellent functional properties.

財産	代表値	説明 & 含意
密度	2.71 g/cm3	軽量, reduces material usage and transport costs.
融点	〜660°C	Suitable for high-temperature processing (例えば, heat sealing).
熱伝導率	~235 W/(M・k)	Excellent heat transfer; useful in insulation applications.
電気伝導率	35–38% IACS	Suitable for EMI/RFI shielding applications.
耐食性	素晴らしい	Natural oxide layer provides protection in humid/acidic environments.

Advantages Summary:

軽量: Reduces overall packaging weight versus alternatives like glass or rigid plastics.
Thermally Stable: Reliable performance during sterilization, retort processing, and heat sealing.
耐食性: Durable in various environmental conditions.

5. 機械的特性

Mechanical properties vary with temper (○, H14, H18, 等) and thickness.

Typical Mechanical Properties (O Temper):

財産	代表値	Characteristic
抗張力	125 – 165 MPa	Provides reliable structural performance.
降伏強さ	80 – 110 MPa	Ensures stability under load.
伸長	2 – 5%	Enables excellent flexibility and formability.
典型的な厚さ範囲	6 – 200 μm	Wide range for diverse applications.

Key Mechanical Advantages:

Outstanding Flexibility: Adapts easily to complex packaging forms (blisters, ポーチ, 袋).
Good Puncture Resistance: Resists damage during packaging, 充填, and transportation.

6. 製品フォーム & Thickness Classes

Available in multiple forms to meet diverse industrial needs.

製品フォーム:

Bare Foil: For further converting, ラミネート加工, or coating.
Coated/Lacquered Foil: For pharmaceutical packaging and specific heat-seal applications.
ラミネートフォイル: Combined with films (ペット, PE, ナイロン) or paper for high-barrier structures.
Printed/Embossed Foil: For branding, 装飾, and customized functionality.

Thickness Classification & アプリケーション:

厚さの範囲	Classification	典型的なアプリケーション
6 – 9 μm	ダブルゼロフォイル	Cigarette foil, ultra-thin snack wraps
10 – 20 μm	Thin Foil	家庭用ホイル, small sachets
20 – 30 μm	Medium Foil	Pharmaceutical blister packaging, food pouches
30 – 50 µm+	頑丈なホイル	Industrial laminates, 絶縁, rigid lids

7. Key Advantages of 8079 アルミ箔

Excellent Barrier: Provides near-total protection against moisture, 酸素, UVライト, および汚染物質, extending product shelf life.
Superior Formability: High elongation allows for complex, deep-drawn packaging shapes without failure.
Strong Heat Resistance: Maintains integrity and performance during retort sterilization and high-temperature processes.
High Sustainability: 100% recyclable without quality loss. Recycling saves ~95% energy vs. primary production, reducing environmental footprint.

8. Main Applications

1. 医薬品包装:

Blister Packaging: Protects tablets/capsules from moisture and oxygen.
Strip Packaging: For powders and sensitive medicines.
Child-Resistant/Tamper-Evident Packaging: Provides secure dosing.

2. 食品包装:

Flexible Pouches: For snacks, dairy, ソース, frozen foods.
Retort Pouches: For shelf-stable, sterilized ready-to-eat meals.
Lidding Materials: For yogurt cups, beverage lids, and dairy containers.

3. Household Applications:

Household aluminum foil for cooking, ベーキング, and food storage, offering excellent flexibility and heat resistance.

4. Industrial Applications:

Cable Shielding: Provides electromagnetic interference (EMI) 保護.
Insulation Materials: Reflective layer in building insulation systems.
Battery Packaging: Used in the soft pouch material for lithium-ion batteries.

9. 製造プロセスの概要

Alloy Smelting: High-purity aluminum is combined with precise amounts of iron and silicon.
ローリング: Multi-stage cold rolling reduces the alloy to the desired ultra-thin gauge.
アニーリング: Heat treatment (for O temper) optimizes flexibility and ductility.
表面処理: Includes degreasing, クリーニング, and sometimes surface roughening to enhance coating/printing adhesion.
Converting: Foil may be coated, laminated, printed, or embossed as per final application requirements.

10. Comparison with Other Aluminum Foil Alloys

財産	1235 ホイル (高純度)	8011 ホイル	8021 ホイル	8079 ホイル
強さ	低い	高い	非常に高い	中程度の高さ
Flexibility/Ductility	素晴らしい	適度	適度	素晴らしい
パンク抵抗	低い	適度	素晴らしい	良い
バリア性能	適度	高い	非常に高い	高い
料金	高い	低い	高い	適度

選ぶ理由 8079?

8079 foil provides the best overall balance between cost, 柔軟性, barrier protection, and processability, making it an ideal, versatile choice for the flexible packaging industry.

11. 持続可能性 & Environmental Benefits

8079 aluminum foil supports circular economy goals:

Infinitely Recyclable: Can be recycled repeatedly without losing its properties.
Resource Efficient: Its lightweight nature reduces transportation emissions.
Prevents Waste: Its superior barrier properties extend the shelf life of packaged goods, significantly reducing food and pharmaceutical waste.

12. 品質管理 & Standards

When specifying 8079 アルミホイル, key parameters include:

合金グレード: 8079
気性 (例えば, ○, H14, H18)
厚さ & 幅 (with tight tolerances)
Surface Quality (wettability, pinhole count)
機械的特性 (抗張力, 伸長)

Relevant International Standards:

で 573-3 (化学組成)
で 546-2 (Mechanical properties)
で 546-3 (Tolerances on dimensions)

13. 結論

8079 aluminum foil has established itself as a critical material in modern packaging and industry due to its exceptional combination of flexibility, reliable barrier performance, 耐食性, 環境の持続可能性.

Whether protecting sensitive pharmaceuticals, preserving food freshness, or serving in advanced industrial applications, 8079 foil delivers consistent performance and processing reliability. As global demand grows for efficient, 軽量, and sustainable packaging solutions, 8079 aluminum foil is poised to remain a fundamental and growing choice for innovators across multiple sectors.

8079 アルミ箔: A Comprehensive Guide to Properties, アプリケーション, and Advantages