2 component package adhesive JL2170
2 component package adhesive JL2170

Aluminum-plastic Composite Package Boiling Adhesive JL2170/GL2170

Solvent-based two-component polyurethane adhesives excel in flexible packaging applications due to their superior chemical resistance compared to one-component polyurethane adhesives. They offer higher bond strength and enhanced durability, making them suitable for demanding environments. These adhesives are versatile, capable of bonding plastic-plastic and plastic-aluminum package structures effectively. They are particularly notable for their ability to withstand rigorous conditions such as 100℃/30min aluminum-plastic boiling sterilization, ensuring the integrity and safety of packaged contents in sterile environments. This combination of properties makes them a reliable choice for industries requiring robust, high-performance adhesives in flexible packaging solutions.

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Aluminum-plastic composite package boiling adhesive JL2170/GL2170 , capable of laminating materials such as PET, BOPP, CPP, PE, VMCPP, VMPET, NY, and aluminum foil, is specifically formulated for use with dry laminating machines operating at various speeds.

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100℃/30min aluminum-plastic boiling sterilization
Aluminum-plastic composite packaging bags are commonly used in the food industry, where the aluminum layer provides excellent physical properties of oxygen isolation, moisture isolation, and light shielding and heat insulation, making it suitable for boiling sterilization. The following are some characteristics and precautions for aluminum-plastic composite packaging bags in boiling sterilization:

Structural features:

Aluminum layer (AL): Provides excellent air barrier properties, prevents the intrusion of oxygen and water vapor, and effectively protects the freshness and nutrition of food.

Plastic layer (usually PE or PP): Provides the closure and mechanical strength of the packaging bag, ensuring that the packaging bag can withstand the high temperature and pressure during the boiling process.

Applicable products:

Aluminum-plastic composite packaging bags are suitable for foods that require high-temperature boiling sterilization, such as canned foods, fast foods, ready-to-eat rice, meat products, etc.

Boiling sterilization process:

Boiling sterilization usually places the packaging bag in high-temperature water or steam to ensure that the food reaches the temperature and time required for sterilization. Aluminum-plastic composite packaging bags can safely withstand these treatment processes due to their high temperature resistance.

Packaging bag selection: Make sure to choose aluminum-plastic composite packaging bags that are specially designed for high-temperature treatment to ensure that their materials can safely and effectively withstand boiling sterilization.
Sterilization conditions: The boiling sterilization conditions for each food may be different, and the sterilization temperature and time must be determined according to the requirements of the specific product.
Packaging bag sealing: During the boiling sterilization process, ensure that the packaging bag has good sealing performance to prevent the penetration of water vapor from affecting the quality and safety of the food.
In summary, aluminum-plastic composite packaging bags can provide effective protection and safety during boiling sterilization, and are suitable for many food application scenarios that require high-temperature treatment.

1.Physical Datas:

Type JL2170(Main Agent) GL2170(Curing Agent)
Composition -OH -NCO
Appearance Clear or light yellow transaprent liquid Clear or light yellow transaprent liquid
Solid content (%) 70±2 70±2
Viscosity at 25℃(mPa) 2500-4500 200-2000
Solvent Ethyl Acetate Ethyl Acetate
Mixing ratio by weight 20 3.5-4.5
shelf life at 15℃-25℃ 12 month 12 month

 

2.Applicable model:

Has an excellent composite effect on aluminized products.

Suitable for various speeds of dry laminating machines 

3.Recommended ratio:

20:4. Actual ambient humidty and printing ink have an obvious influence on the qualities of lamination. It is necessary to adjust the application amount of curing agent or hardener properly according to the actual conditions.

4.Operating conditions:

(1) When diluting, add the solvent to the main agent according to the required solid content, stir it thoroughly,

(2)Then add the curing agent, and stir it evenly before use.

(3) The water content of the solvent ethyl acetate shall not exceed 0.03%, and the alcohol content shall not exceed 0.02%

(4) Working concentration 25%~35%

 

5.Drying:

The drying device should have sufficient air volume, wind speed and temperature. When the drying system is divided into three sections, the temperature from the membrane inlet to the outlet is controlled between 50~60℃, 60~70℃, and 70~80℃.

 

6.packaging specification:

JL2170:20kg/barrel GL2170:4kg/barrel  

 

7. HealthStandard

Conforms to the FDA CFR21.175.105 Item.

Conforms to the National food safety standard GB9685 and regulations of adhesive for food packaging.

Conforms to the National food safety standard GB9683 and regulations of adhesive for food packaging.