1、Breathability principle: Scientific regulation of release rate 

Perfume breathable membrane realizes intelligent controlled release through precisely designed microporous structure (pore diameter 0.01-0.1 μ m). Its asymmetric pore structure allows gas molecules to pass through while blocking liquid leakage, stabilizing the fragrance evaporation rate within the range of 5-20ml/min/cm ², avoiding explosive evaporation in the early stage or fragrance depletion in the later stage. 

2、3 layer composite structure: balancing functionality and protection 

Contact layer: PTFE or modified PE resistant to alcohol corrosion, resistant to long-term immersion in 95% ethanol 

Control layer: Micro hole array formed by laser drilling, aperture error ≤ ± 5% 

Protective layer (optional): Aluminum plating layer blocks ultraviolet rays and protects photosensitive fragrance components 

3、4 core performance indicators 

Alcohol penetration rate:<0.1g/m ²/day (ensure no leakage) 

Aroma Transmittance: Customized by Aroma Type (Citrus 15 ± 2ml/min, Wood 8 ± 1ml/min) 

Heat sealing strength: ≥ 1.8N/15mm (tested through high and low temperature cycling at -20 ℃~50 ℃) 

Aging stability: Accelerated aging test (40 ℃/75% RH) with performance degradation<5% after 90 days 

4、5 typical application scenarios 

① High end perfume bottle: replace the traditional sealing sheet to realize tear free and ready to use 

② Car Aromatherapy: Seismic Design+Temperature Compensation Breathability 

③ Home Fragrance Expansion: Customized Porosity Matching Space Size 

④ Trial set: Leak proof and fragrance preserving, maintaining the effectiveness of counter samples 

⑤ Solid Perfume: Balancing Oxygen Input and Aroma Output 

Leadtra Packaging is a wholesale and customized manufacturer of aluminum foil sealing film, specializing in the research and development and production of various high barrier packaging materials and easy to tear sealing packaging materials. They are widely used in food, medicine, cosmetics, and daily necessities packaging, and have many advantages such as green environmental protection, high safety, strict testing, and stable quality. If you are interested in or have any questions about us, please feel free to call us for consultation.