Heat Seal Coatings; Used to Seal Products, Packaging, & Other Thermoplastic Materials Using Heat

 

Heat Seal Coatings

Heat seal coatings are thermoplastic coatings used to seal a variety of materials including films, paper, foils, and non-wovens. They are designed to adhere to various substrates by using heat and pressure to form a seal. In flexible packaging, heat seal coatings are widely used to protect food and beverages from the risk of spoilage and contamination during storage and handling. These type of coatings are used in various lidding applications, such as condiments and dairy, and restorable and ovenable containers.

Heat seal coatings are available in solvent- and water-based solutions, as well as solid resins. This method guarantees a perfect heat-bond between the two substrates; heat and moisture will not be able to permeate through the bonding. It can be supplied in a wide variety of chemistries and carriers. Low temperature heat seal films are commonly used in the consumer goods and food packaging industries, which in turn increase the demand for heat seal coatings. The most common applications include blister packaging in pharmaceutical.

Blister packaging is a cost-efficient packaging solution to protect goods from tampering and avoid exposure to external factors, such as contamination, humidity, temperature, and others, for extended periods of time. Moreover, blister packs eliminate the need for additional cartons, reducing the cost of packaging. The COVID-19 outbreak has increased the demand for blister packaging in the Asia Pacific (APAC) region as demand from the pharmaceutical industry rose dramatically, increasing the demand for heat seal coatings.

For example, in April 2020, the Government of India announced that India will export 285 million tablets of anti-malaria drug hydroxychloroquine (HCQ) to 40 countries and 500 million tablets of paracetamol to 60 countries to fight COVID-19. Heat seal coatings are applied to the substrates (such as film, foil, or paper) and then dried until the coating is re-activated for a final bond to form between the substrates.


Location: India

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