8079 O Алюминиевая пластиковая ламинированная фольга толщиной 20 мкм
8079 O Алюминиевая пластиковая ламинированная фольга толщиной 20 мкм
1. Executive Product Overview
The 8079 O-temper 20μm aluminum-plastic laminated foil represents the pinnacle of modern flexible packaging materials, meticulously engineered for high-standard barrier packaging scenarios.
By utilizing 8079 aluminum alloy as the core substrate and subjecting it to a fully annealed O-temper treatment, the foil achieves an ultra-fine thickness of merely 0.020 мм.
This material is not merely a component; it is a sophisticated integration of metallurgical science and polymer engineering.
Through advanced dry lamination, ламинирование без растворителей, or extrusion coating processes, the aluminum core bonds seamlessly with various plastic films (such as PET, ЧП, Нью-Йорк, CPP).
This synergy creates a multi-layer composite that leverages the high barrier properties of aluminum and the versatility of plastics, effectively neutralizing the limitations of single-material packaging.
1.1 The Strategic Role of the 20μm Gauge
The selection of the 20-micron thickness is a strategic decision balancing cost-efficiency and performance.
This gauge is widely regarded in the industry as the “Goldilocks standard”—thick enough to ensure zero pinholes and absolute barrier integrity, yet thin enough to minimize metal usage and maximize yield per ton.
This ultra-thin aluminum layer acts as an absolute barrier against permeation, resolving chronic issues in packaging such as oxygen ingress, light degradation, поглощение влаги, и потеря аромата.
1.2 Market Positioning and Value Proposition
8079 aluminum alloy occupies a premium segment within the packaging market.
Unlike commodity-grade foils, 8079 offers superior metallurgical purity and consistency. When combined with the O-temper process, the resulting foil exhibits exceptional ductility and dead-fold characteristics.
It is the material of choice for brands seeking to extend shelf life, enhance user experience through easy-open features, and maintain structural integrity during high-speed automated filling.
2. Комплексные технические характеристики
Our manufacturing protocol adheres to stringent international standards, ensuring that every roll of 8079 O-temper foil meets precise dimensional and mechanical criteria. We offer extensive customization to align with specific machinery requirements.
| Категория параметра | Детали спецификации |
|---|---|
| Metallurgical Composition | 8079 Алюминиевый сплав (Fe + Si content optimized for fineness) |
| Temper Status | О (отожженный, Мягкий характер) |
| Номинальная толщина | 20 мкм (± 5% Tolerance Control) |
| Available Widths | 100 mm up to 1600 мм (Precision Slit) |
| Основные размеры | 3 дюймы (76 мм) / 6 дюймы (152 мм) |
| Чистота поверхности | Одна сторона яркая (ОСБ) / Two Sides Bright (TSB) |
| Механические свойства | Предел прочности: 60-100 МПа; Удлинение: ≥ 13% |
| Контроль дефектов | Zero Critical Pinholes; No Micro-Cracks |
| Lamination Compatibility | Optimized for Adhesive Lamination, Extrusion Coating |
3. In-Depth Material Property Analysis
3.1 Absolute Barrier Performance
The primary function of the 8079 layer is to act as an impermeable shield. В 20 микроны, the foil’s crystalline structure is dense enough to block all gas molecules and light waves.
- Влагозащитный барьер (ВВТР): Near-zero water vapor transmission rate, protecting hygroscopic powders like milk powder or instant coffee.
- Кислородный барьер (ОТР): Prevents oxidative rancidity in fatty foods (орехи, чипсы) and preserves the efficacy of pharmaceuticals.
- Ароматический барьер: Locks in volatile organic compounds, ensuring fragrance retention in coffee and daily chemicals.
- Световой барьер: Provides 100% непрозрачность, preventing photodegradation of vitamins and sensitive ingredients.
3.2 Metallurgical Flexibility and Formability
The O-temper annealing process involves heating the aluminum to a specific recrystallization temperature followed by controlled cooling. This eliminates internal stresses and dislocations within the metal lattice.
- Dead-Fold Capability: Unlike springy materials, this foil stays folded, which is critical for pouch closures and wrapping applications.
- Bend Ductility: It can endure sharp folds without fracturing, ensuring the package remains hermetically sealed even under mechanical stress during transport.
3.3 Superior Elongation and Deep Drawing
With an elongation rate consistently exceeding 13%, this foil is engineered for complex transformations.
- Блистерная упаковка: It can be stretched over cavities without thinning excessively at the corners.
- Shaped Pouches: Ideal for stand-up pouches or custom-shaped packaging that requires the material to conform to complex geometries.
3.4 Surface Energy and Bond Strength
The foil undergoes a proprietary surface treatment to optimize surface energy (уровень дина).
- Смачиваемость: Ensures adhesives spread evenly, creating a molecular bond rather than just a mechanical one.
- Anti-Delamination: The interface between the aluminum and the plastic film remains intact even during retorting (стерилизация) or freezing cycles.
4. Advanced Composite Structure Engineering
Универсальность 8079 O-temper foil allows it to serve as the backbone for various multi-layer structures, each designed for specific environmental challenges.
4.1 ПЭТ/АЛ/ПЭ (General Purpose)
- Structural Breakdown:
- Внешний слой (ДОМАШНИЙ ПИТОМЕЦ): Provides stiffness, устойчивость к истиранию, and a printable surface.
- Барьерный слой (АЛ): The core 20μm foil.
- Внутренний слой (ЧП): Offers heat-sealability and chemical resistance.
- Engineering Insight: This structure is the workhorse of the industry, offering an optimal balance of cost, качество печати, and barrier protection for dry food mixes and pharmaceutical tablets.
4.2 PET/AL/NY/PE (Сверхмощный & Vacuum)
- Structural Breakdown:
- Нейлон (Нью-Йорк) Inclusion: Nylon is introduced for its exceptional toughness and puncture resistance.
- Engineering Insight: Essential for products with sharp edges (например, bone-in meats, hardware) or those requiring vacuum packing where atmospheric pressure exerts immense force on the package walls.
4.3 ПЭТ/АЛ/КПФ (Реторта & Heat Resistant)
- Structural Breakdown:
- Внутренний слой (CPP): Cast Polypropylene is chosen for its high melting point and resistance to acids.
- Engineering Insight: Specifically designed for ready-to-eat meals (ретортные пакеты) that must withstand high-temperature sterilization processes (121°C+) without deforming or losing seal integrity.
5. Expanded Core Advantages for B2B Clients
5.1 Maximizing Shelf Life and Reducing Waste
By preventing oxidation and moisture ingress, our foil helps manufacturers expand their distribution radius. Products can be shipped internationally without fear of spoilage, drastically reducing write-offs and returns due to expired or degraded stock.
5.2 Enhancing Brand Perception
The brilliance of the aluminum layer provides a premium metallic sheen that elevates brand perception. The flatness of the foil ensures high-definition graphics and vibrant color reproduction, making products stand out on crowded retail shelves.
5.3 Operational Efficiency and Yield
- Consistent Web Tension: Our foils exhibit uniform mechanical properties across the entire roll, preventing web breaks on high-speed laminators and pouch-making machines.
- Reduced Rejects: Low pinhole counts mean fewer leakers, translating directly to higher Overall Equipment Effectiveness (ОЕЕ) for converters.
5.4 Sustainability Profile
While aluminum is a metal, the use of 20μm ultra-thin foil is a resource-efficient application. It provides maximum functionality with minimal material input. Более того, aluminum layers can be separated and recycled in specialized streams, aligning with circular economy goals.
6. Detailed Application Case Studies
6.1 Specialty Food Packaging
- Кофе и Чай: Preserves volatile aromatic oils from evaporating and prevents the absorption of ambient odors (coffee degassing valves often require a robust foil structure).
- Корм для домашних животных: Protects high-fat kibble from turning rancid and keeps the strong pet food odors contained within the package.
6.2 Pharmaceutical and Nutraceuticals
- Блистерные упаковки: Provides a moisture-proof barrier for sensitive tablets and capsules, ensuring dosage integrity over years of shelf life.
- Powder Sachets: Used for single-dose packets of vitamins or electrolytes where absolute dryness is mandatory.
6.3 Cosmetic and Personal Care
- Cosmeceuticals: Protects retinol, пептиды, and antioxidants from UV degradation.
- Тканевые маски: The foil laminate prevents the evaporation of serums and maintains the sterility of the product.
6.4 Industrial and Electronics
- Static Sensitive Components: Aluminum acts as a Faraday cage, shielding microchips from electrostatic discharge (ЭСР).
- Chemical Powders: Prevents atmospheric moisture from reacting with hygroscopic industrial chemicals.
7. Сравнительный анализ: 8079 против. 8011 против. 1235
To illustrate why 8079 is the premium choice, here is a detailed comparison with other common alloys:
| Особенность | 8079 Алюминиевый сплав | 8011 Алюминиевый сплав | 1235 Алюминиевый сплав |
|---|---|---|---|
| Основное использование | High-end Lamination, Фармацевтика | General Purpose, Семья | Tape, Cable Wrap |
| Удлинение (%) | 15 – 25% (Отличный) | 2 – 5% (Справедливый) | 1 – 3% (Бедный) |
| Pinpoint Porosity | Чрезвычайно низкий | Умеренный | Высокий |
| Temper Stability | Отличный (No aging effect) | Хороший | Справедливый |
| Расходы | Премиум | Mid-Range | Budget |
| Лучшее для | Vacuum, Deep Draw, Медицинский | Simple Wrapping | Non-critical Barriers |
8. Manufacturing Process and Quality Assurance
Our production line utilizes state-of-the-art European rolling technology.
- Плавка и литье: Precise control of alloying elements (Fe, И, Мн) to ensure fine grain structure.
- Hot/Cold Rolling: Reduction to intermediate gauges.
- Foil Stock Rolling: Precision reduction to 20μm with closed-loop gauge control systems.
- Continuous Annealing: A critical step where temperature and time are precisely managed to achieve the perfect O-temper softness without compromising tensile strength.
- Обработка поверхности: Cleaning and corona treatment to ensure optimal bonding.
- Инспекция: 100% inspection using laser-based systems to detect pinholes and surface defects.
9. Why Partner with Henan Huawei Aluminum?
9.1 Technical Prowess and R&Д
Our R&D team specializes in “thin gauge metallurgy.” We have solved the common industry challenge of edge cracks in 20μm foils through proprietary rolling oil formulations and tension control algorithms.
9.2 Certifications and Compliance
We operate under ISO 9001, ИСО 14001, и ИСО 22000 (Безопасности пищевых продуктов) стандарты. Our products are fully compliant with FDA (США), Евросоюз (ЕС нет 1935/2004), and other international food contact regulations.
9.3 Устойчивость цепочки поставок
With a monthly output of thousands of tons, we maintain buffer stocks of raw materials to mitigate market volatility. Our logistics network ensures timely delivery to ports worldwide, minimizing lead times for your production schedules.
10. Часто задаваемые вопросы (Вопросы-Ответы)
Вопрос: How does 20μm compare to 7μm or 9μm foil?
А: While thinner foils (7-9мкм) are cheaper, they have higher pinhole densities and are prone to tearing during lamination. 20μm is the standard for high-barrier applications where product safety and longevity are paramount.
Вопрос: Can you provide samples for testing?
А: Да, we encourage sampling. We can provide slit rolls or laminated samples for your R&D team to test on your specific filling lines.
Вопрос: What is the typical lead time?
А: For standard specifications, lead time is typically 15-20 дни. For customized orders, please consult our sales team for a precise schedule.
11. Conclusion and Future Outlook
The 8079 O-temper 20μm aluminum-plastic laminated foil is more than just a packaging material; it is a critical enabler of global trade for sensitive goods.
As sustainability pressures mount, the industry is moving towards high-performance barriers that allow for downgauging of plastics.
Наш 8079 foil is at the forefront of this trend, offering unmatched protection that safeguards products, уменьшает пищевые отходы, and enhances brand value. We invite you to collaborate with us to engineer the future of packaging.
