Tipos de papel de aluminio para empacar

La lámina de aluminio es un material liviano con excelentes propiedades de barrera, que se usa ampliamente en el empaque de la comida, medicina y cosméticos diarios. Puede evitar efectivamente la intrusión de la luz, gas y humedad, extendiendo así la vida útil del producto y manteniendo la frescura y el sabor. Aluminum foil is resistant to high and low temperatures and is suitable for microwave heating and frozen storage. Adicionalmente, aluminum foil is easy to shape, meets environmental protection requirements, and can be recycled. It is an important material in the modern packaging industry.

According to the usage classification, papel de aluminio para empacar can be divided into the following main types according to the product field, functional requirements and usage scenarios it serves:

1. Aluminum foil for food packaging

Food packaging is the most important application field of aluminum foil. The core requirements are barrier properties (a prueba de humedad, de oxígeno a prueba, de protección de luz), la seguridad (food contact compliance), and processing adaptability (heat sealing, moldura, etcétera), incluso:

– Aluminum foil for direct contact with food

Household cooking aluminum foil: The thickness is mostly 0.01~0.02mm (single zero foil), with soft texture and good ductility. It can directly wrap ingredients (such as barbecue, horneando), or be used as baking tray pad paper. It is resistant to high temperature (above 200℃) and meets food-grade safety standards (such as GB 4806.9).

Aluminum foil for food inner packaging: such as inner packaging foil for chocolate and candy (Foil doble cero, thickness 0.005~0.009mm), which is thin and has strong sealing properties, can isolate air and light, and prevent candy from melting or flavor loss; extremely thin double zero foil is often used for chewing gum packaging, which has high adhesion and non-stickiness.

– Composite food packaging aluminum foil

Aluminum-plastic composite film/bag: composited with plastics such as PET and PE (such as PET/AL/PE structure), used for vacuum packaging of meat, frozen food, aperitivos, etcétera, with both the high barrier properties of aluminum foil and the heat sealing properties of plastics, extending the shelf life.

Steaming aluminum foil bag: adopts high temperature resistant composite structure (such as NY/AL/RCPP), can withstand steaming and sterilization above 121℃, and is used for canned food, instant rice and other food packaging that needs to be heated.

Aluminum paper composite packaging: composited with kraft paper or food-grade paper, used for outer packaging bags of bread and pastries, taking into account stiffness and moisture resistance.

– Aluminum foil for food containers

Aluminum foil lunch box/bowl: thickness 0.03~0.1mm (single zero foil or thick foil), can directly contact food, suitable for take-out, airline meals, etcétera, can be heated in microwave oven or baked in oven (needs no coating or high temperature resistant coating).

Aluminum foil tray: used for disposable packaging of fresh food and meat, light and with certain rigidity, convenient for refrigeration and display.

2. Aluminum foil for pharmaceutical packaging

Pharmaceuticals have extremely high requirements for the barrier properties (a prueba de humedad, de oxígeno a prueba, UV-proof) and hygienic safety of packaging. Los tipos comunes incluyen:

– Medicinal papel de aluminio de la ampolla (Papel de aluminio PTP)

The thickness is usually 20~30μm (single zero foil), which is compounded with PVC hard sheet to form blister packaging, and is used for solid drugs such as tablets and capsules. The surface needs to be coated with protective agent and heat-sealing adhesive to ensure the sealing with PVC, while meeting pharmaceutical standards (such as heavy metals and dissolution limits).

– Medicinal aluminum-plastic composite film

Multi-layer structure (such as PET/AL/PE), used for bag packaging of granules and powders, or outer barrier material of infusion bags, with high barrier and puncture resistance to prevent drugs from absorbing moisture or oxidation.

– Medicinal aluminum foil cover material

The sealing cover used for oral liquid bottles and syringe bottles is usually a composite structure of aluminum foil and rubber, which has both sealing and easy tearing properties to ensure the sterility of drugs.

3. Aluminum foil for daily necessities and cosmetics packaging

This type of packaging needs to take into account barrier properties, aesthetics and stability of the contents (such as oils and spices). Common types:

– Aluminum-plastic composite hose

The inner layer is aluminum foil (to prevent the volatilization of spices and oils), and the outer layer is composite plastic or paper. It is used for toothpaste, skin care products, hair dyes, etc.. It can be squeezed and has strong sealing properties.

– High-end cosmetic packaging aluminum foil

Such as embossed aluminum foil and printed aluminum foil, used for gift box lining or bottle decoration, with both metallic texture and barrier properties to prevent skin care products from deteriorating due to light and oxidation.

– Daily chemical sealing aluminum foil

As a bottle mouth sealing film (thickness 5~10μm) for bottled products such as shampoo and shower gel, it prevents leakage during transportation and is hygienic.

4. Aluminum foil for tobacco packaging

Tobacco packaging needs to be moisture-proof, flavor-preserving, and odor-proof. The core types are:

– Aluminum foil paper for cigarette lining

Mostly aluminum foil and paper composite (aluminum foil thickness 6~12μm), pasted on the inside of the cigarette box, isolating external moisture and odor, maintaining the humidity and flavor of cigarettes, and enhancing the stiffness of the packaging.

5. Aluminum foil for electronic and industrial product packaging

Mainly using the moisture-proof and shielding properties of aluminum foil (anti-electromagnetic interference), common types:

– Moisture-proof aluminum foil for electronic components

Compounded with plastic to form a vacuum packaging bag (such as PET/AL/NY/PE), used for packaging precision components such as chips and circuit boards, blocking water vapor and oxygen, and preventing oxidation and rust.

– Electromagnetic shielding aluminum foil

Used for the outer packaging of cables and electronic equipment, using the conductivity of aluminum to shield electromagnetic signals and avoid interference.

– Rust-proof aluminum foil for industrial parts

Directly wrap or composite metal parts, used with rust inhibitors to prevent rust during transportation and storage.

6. Aluminum foil for special packaging

– Aviation/military food packaging aluminum foil

High temperature resistant (can be heated directly), lightweight and high barrier, adaptable to extreme environments, ensuring that food will not deteriorate during long-term storage.

– Heat shrink aluminum foil label

Used for neck or full body labels of beverage bottles and wine bottles, with both decorative and barrier properties (to prevent ultraviolet radiation from affecting the contents).

– Cold chain packaging aluminum foil

Composite with insulation materials, used for cold chain transportation of fresh food, vacunas, etcétera, to reduce temperature fluctuations and maintain a low temperature environment.

These types of papel de aluminio para empacar are all designed around specific uses. The core is to meet the needs of different products in storage, transporte, and use through the barrier, caza de focas, and processability of aluminum foil.