Why do many medical device manufacturers prefer to use Hypak™ for packaging? Not long ago, in an interview with Chen Boyi, the founder of Kingwills Advanced Materials, with36Kr, he talked about the advantages of this material in the field of medical packaging:
On one hand, Hypak™ material itself has very high mechanical strength; on the other hand, it can achieve a better balance between bacteria resistance and breathability.
Decades ago, the main materials for packaging medical devices were medical dialysis paper, but its strength was only average and could only be used for lightweight medical devices. The commonly used medical non-woven fabric and crepe paper are also very fragile.
Hypak™ material is far stronger than other materials, because it is made of 100% virgin high-density polyethylene through flash spinning technology, and it is a continuous filament product with an ultra-fine fiber network structure, so its physical properties are also very strong.
Hypak™ material is tear-resistant, puncture-resistant, and fold-resistant, resistant to transportation and storage conditions in special situations, and can be used for packaging irregular and sharp medical devices without damage, thereby ensuring the sterility and integrity of the medical devices.
Due to the extremely dense structure and small pore size of Hypak™ material, it can not only block various liquid penetration, but also effectively prevent dust, bacteria, microorganisms, particles, aerosols, and has excellent bacterial resistance rate data, making it impossible for bacteria to penetrate the packaging and contact the instruments.
Good breathability is compatible with various sterilization methods such as ethylene oxide, gamma rays, electron beams, steam (under controlled conditions), and plasma hydrogen peroxide.It ensures that sterilization gas can enter the packaging material and penetrate and remove it efficiently before opening, without absorbing the water droplets produced during sterilization, maintaining sterility and dryness.
As all Class III medical devices are implanted into the human body or come into contact with blood, medical packaging must also achieve clean peeling to avoid contamination.
Hypak™ does not produce any debris, fibers, or invisible smaller particles during unpacking, ensuring no contamination to the instruments themselves.
Compared to medical non-woven fabric: ❌ Paper-plastic packaging bags are not suitable for irregular/sharp surgical instrument packaging as one side of the material is medical dialysis paper with limited tear resistance, suitable only for lighter instruments.
Compared to medical non-woven fabric: ❌ Medical non-woven fabric has limited tear resistance and is prone to damage when exposed to sharp medical instruments repeatedly, requiring specific transportation conditions.
Compared to medical crepe paper:
❌ Medical crepe paper is easily damaged
❌ Not waterproof
Due to the lack of waterproof ability of medical pleated paper, if water droplets are generated under special circumstances during the sterilization process, they will be absorbed by the material, which in severe cases will lead to moisture inside the medical package but not observable from the outside.
As a disposable medical sterilization packaging material, Kunlun Hypak™ combines lightness, toughness, waterproof, dustproof, bacterial barrier, breathability, non-toxicity, harmlessness, and clean peeling, establishing a sterile barrier system for you.