Learn about 1235 soft package composite foil

1235 soft package composite foil is a kind of aluminum foil, belonging to the pure aluminum series, with an aluminum content of not less than 99.35%. Soft package composite foil 1235 is usually used in O state (annealed state) or H18 state (1/8 hardness state), with good anti-rust properties, formability, solubility, and high mechanical properties. It is an aluminum foil material specially used for soft packaging composite purposes.

1235 soft package composite aluminum foil
1235 soft package composite aluminum foil

1235 composite foil product specifications

Debelina: 1235 aluminum foil composite material thickness usually ranges from 0.005mm to 0.025mm, this thinness makes it very suitable for composite packaging materials.

širina: It can range from 100mm to 1600mm, customized according to the requirements of the production line.

Dolžina: The length of each roll can be customized according to customer needs.

Površinska obdelava: Anodizing, coating and other treatments can be performed to improve corrosion resistance and printing effect.

1235 soft package composite foil structure

1235 soft package composite foil usually adopts a multi-layer composite structure to enhance its performance:

Aluminum foil layer1235 aluminum foil is used as a substrate to provide high barrier and reflectivity.
Adhesive layerused to bond aluminum foil with other material layers.
Protective layersuch as polyethylene (PE) or polypropylene (PP) film, providing mechanical protection and heat sealing performance.
Printing layerused to print product information, brand logo, itd.
1235 soft package composite foil structure
1235 soft package composite foil structure

Common alloys of soft-pack composite foil

1235-O: represents 1235 alloy in annealed state, with good formability and corrosion resistance.

8079-O: Another commonly used soft-pack composite foil alloy state, also with good formability and corrosion resistance

Uses of composite foil aluminum 1235

1235 has the characteristics of high purity and good processing performance, and can be used in many fields. 1235 soft package composite foil is mainly used for flexible packaging composite purposes, including:

Food packaging: used for food protection and preservation, such as retort packaging, food bags, itd.

Beverage packaging: used to seal bottle caps or can lids to provide high barrier properties.

Pharmaceutical packaging: used to make the aluminum foil layer of pharmaceutical blister packaging to protect the medicine from external influences.

Household aluminum foil: used for home cooking, preservation, refrigeration, itd.

Tape foil: 1235 has a soft texture and has good toughness after multi-layer composite, and is often used as aluminum foil tape.

1235 aluminum foil tape
1235 aluminum foil tape

Cigarette foil: used for cigarette packaging, and used as internal lining paper of cigarette boxes after composite with paper.

Retort bag: used for food packaging that needs to be retorted, such as cans, retort bags, itd.

Cardboard: used to make various cardboard products.

Capacitor: aluminum foil for capacitors.

Electronic foil: used for specific applications in the electronics industry.

Reflective foil: used in applications that require reflective properties.

Performance characteristics of soft package composite 1235 foil

High purity

The high aluminum content of 1235 aluminum foil ensures its excellent reflectivity and thermal conductivity.

Light weight

The low density of aluminum makes 1235 aluminum foil light in weight, which has certain advantages in transportation and use. Na primer, in food soft packaging, it will not increase the weight of the product too much.

Corrosion resistance

Aluminum easily reacts with oxygen in the air, forming a dense aluminum oxide film on the surface. This oxide film can prevent the internal aluminum from being further oxidized, making it have good corrosion resistance and can be used for packaging in a variety of environments.

Good ductility

1235 aluminum foil has good ductility and can be easily processed into various shapes and sizes to meet the needs of different application scenarios, such as containers of different shapes for food packaging.

Excellent barrier properties

It has good barrier properties against water vapor, air, light, itd., which can effectively protect the packaged items from the influence of the external environment, maintain the freshness of food, the stability of medicines, itd.

Hygienic and non-toxic

Aluminum itself is a non-toxic metal. The surface of 1235 aluminum foil is extremely clean and hygienic. It is difficult for any bacteria or microorganisms to grow on its surface. It can be in direct contact with food and will not cause harm to human health.

High barrier property

It has excellent gas, water vapor and light barrier properties, which helps to extend the shelf life of food.

Flexibility

1235 aluminum foil shows excellent flexibility and plasticity in soft packaging and is suitable for various packaging needs.

Heat sealability

It can be heat-sealed with plastic film or other materials to form a sealed package.