Answer:
I. Definition and Technical Principle of Triple-Protection Oxygen Absorbers
The term “triple-protection” refers to three key functions: water resistance, oil resistance, and dust resistance. The core technologies include:
- Special hydrophobic and oleophobic treatment applied to the paper-fiber layer of the composite packaging material;
- Use of a staggered perforation process to control the gas penetration path;
- Effective blocking of water/oil penetration and prevention of content leakage when the packaging material comes into direct contact with food, ensuring stable deoxygenation performance.
II. Key Scenarios Requiring Triple-Protection Oxygen Absorbers
- High-Oil/High-Moisture Foods
Triple-protection oxygen absorbers must be used when the food surface shows visible oil sheen or feels noticeably greasy or moist (e.g., fried foods, oil-preserved products, moist pastries).
? Principle: Free oil or moisture penetrating into the oxygen absorber packaging will block the oxygen reaction channels, rendering the deoxygenation function ineffective. - Direct Food Contact Applications
If the oxygen absorber needs to be placed directly on the food surface or mixed within layered food items (e.g., nuts, seeds, baked goods, dried meat), triple-protection oxygen absorbers are essential.
? Value: Prevents fiber dust from contaminating the food and avoids reverse penetration of food juices.
III. Conditions for Using Conventional Oxygen Absorbers
Standard high-efficiency oxygen absorbers may be used only when physically isolated from the food (e.g., separated by inner packaging) and when no risk of oil or moisture contact is confirmed.