On the assembly line of the pharmaceutical industry, there is a key material that serves as an "invisible guardian" to ensure the safety of every drug - it is the bubble wrap machine composite film. This seemingly ordinary thin film is actually a precision designed composite material, mainly composed of three functional layers:

Protective layer (outer layer):

Made of nylon or PET material with a thickness of about 25 microns, it is like putting a "bulletproof vest" on drugs, which can resist friction and impact during transportation. Its surface has undergone special treatment, allowing for clear printing of drug information and possessing anti-static properties to prevent dust adsorption.

Barrier layer (intermediate layer):

The core barrier composed of aluminum foil, with a thickness of only 20-40 microns, can control the oxygen permeability to<0.5cm ³/m ² · day and the moisture permeability to<0.1g/m ² · day, ensuring that the drug is not affected by environmental factors during its shelf life. It's like building a 'sterile vacuum chamber' for drugs.

Heat sealing layer (inner layer):

Using modified polypropylene or special polyethylene materials, when heated to 150-180 ℃ in the bubble hood machine, it can firmly bond with plastic hard sheets like "liquid welding", forming an excellent sealed "independent suite" of drugs.

On modern bubble wrap packaging machines, this composite film completes precise heat sealing at a speed of 100-200 times per minute. During operation, three major parameters must be strictly controlled: temperature fluctuation not exceeding ± 2 ℃, pressure maintained at 0.3-0.5MPa, and heat sealing time accurate to 0.5-1.5 seconds. Even a small parameter deviation can lead to seal failure.

The current industry innovation focuses on three major directions:

Intelligent: Integrated temperature indicator tag, with color change warning in case of abnormal high temperature.

Environmentally friendly: Developing biodegradable PLA based composite materials to reduce environmental burden.

Functional: Added antibacterial coating to provide additional protection for special drugs.

From pills to capsules, from oral preparations to topical medications, the composite film of the blister machine is using the power of technology to safeguard the safe journey of every drug from the factory to the patient's hands. This inconspicuous material is actually an indispensable "gatekeeper" in the modern pharmaceutical industry.

Leadtra Packaging is a wholesale and customized manufacturer of aluminum foil sealing film, specializing in the research and development, production of various high barrier packaging materials and easy to tear sealing packaging materials. We can provide one-stop services from consultation, design, sampling, production, testing, after-sales service, etc. If you are interested in or have any questions about us, please feel free to call us for consultation.