SVW™ EW-2901S -EVOH High-Barrier Material for Professional Packaging
Performance Features of SVW™ EW-2901S in Professional Applications
1.Superior Material Safety and Molecular Purity
EVOH is composed exclusively of carbon, hydrogen, and oxygen, with no added plasticizers during polymerization or processing. Its highly crystalline molecular structure ensures exceptional stability and minimizes the risk of substance migration, making it suitable for direct contact with pharmaceuticals and active cosmetic ingredients.
2.Global Regulatory Compliance for Safe Use
Medical- and food-grade EVOH fully complies with major international regulations, including:
EU: ECHA Chemical Classification & Labelling (C&L) inventory and EU food contact standards
China: GB 4806.7-2025 and GB/T 28803.1—2025 “Dynamic Risk Assessment” framework
USA: FDA 21 CFR 177.1360 and USP Class VI biological testing
This comprehensive compliance allows EVOH-based packaging to be safely used in global healthcare and personal care markets.
3. Exceptional Barrier and Chemical Stability
EVOH offers industry-leading oxygen barrier performance and remarkable chemical resistance. These properties ensure that both medical and cosmetic formulations maintain efficacy, integrity, and fragrance stability throughout sterilization, storage, and use.
4.Tunable Material Design for Diverse Packaging Formats
EVOH’s material properties can be precisely adjusted to meet different packaging requirements:
High-ethylene grades (~44%): Improved melt flow for thin-wall bottles, tubes, and pouches
High vinyl alcohol grades (~32 mol%): Maximum barrier performance for oxygen-sensitive formulations
This versatility allows EVOH to be used in bottles, jars, tubes, pouches, and airless systems, providing reliable performance for both pharmaceutical and cosmetic products.
Application Advantages of SVW™ EW-2901S in Medical Use
1.Inherent Material Safety and Molecular Purity
EVOH is composed exclusively of carbon, hydrogen, and oxygen, with no plasticizers added during polymerization or processing. Its highly crystalline molecular structure provides excellent stability and minimizes the risk of substance migration.
2. Full Compliance with Global Medical and Food Contact Regulations
Medical-grade EVOH materials meet and exceed major global regulatory requirements:
European Union: Fully compliant with updated ECHA Chemical Classification & Labelling (C&L) inventory and EU food contact regulations
China: Conforms to GB 4806.7-2025 and the new “Dynamic Risk Assessment” framework under GB/T 28803.1—2025
United States: Certified under FDA 21 CFR 177.1360 and passes USP Class VI biological testing for medical contact
This comprehensive compliance profile allows EVOH-based products to be used safely in global healthcare markets.
3. Exceptional Chemical Stability in Harsh Medical Environments
EVOH demonstrates proven stability under aggressive processing and use conditions commonly encountered in medical and pharmaceutical applications:
Total migration <0.1 mg/dm² after 121°C retort sterilization
No detectable acetaldehyde release, preventing whitening, odor, or delamination
Excellent resistance to acids, bases, and pharmaceutical solutions
These properties ensure that EVOH maintains both barrier performance and material integrity throughout sterilization, storage, and use.
Application Advantages of SVW™ EW-2901S in Cosmetic Packaging
1.Exceptional Oxygen Barrier for Active Ingredient Protection
Many cosmetic actives, including Vitamin C, retinol, and peptides, are highly sensitive to oxygen exposure. EVOH’s unique polymer structure, rich in hydroxyl (–OH) groups, forms a tightly hydrogen-bonded crystalline network that delivers industry-leading oxygen barrier performance.
By keeping internal oxygen levels below 0.1%, EVOH significantly extends the shelf life of cosmetic products and preserves the efficacy of sensitive active ingredients.
2. Superior Fragrance and Aroma Retention
Volatile fragrance compounds, such as limonene, linalool, and essential oils, often evaporate through conventional packaging materials. EVOH ensures over 99.5% retention of aromatic compounds, offering up to 40% better fragrance preservation compared to standard PE packaging. This stable aroma retention makes EVOH ideal for perfumed skincare, aromatherapy products, and luxury cosmetic packaging.
3. Outstanding Chemical and Solvent Resistance
Cosmetic formulations frequently contain alcohols, oils, and active solvents that can compromise traditional plastics. EVOH provides near-zero permeability to ethanol, xylene, and aromatic solvents, with minimal dimensional change after 365 days of solvent exposure. Its strong resistance to swelling, stress cracking, and ingredient migration ensures formulation integrity for serums, essences, and alcohol-based cosmetics.
4. Tunable Material Design for Diverse Cosmetic Formats
EVOH’s material properties can be precisely adjusted to suit different cosmetic packaging designs.
High-ethylene grades (~44%): Enhanced melt flow for thin-wall bottles, tubes, and pouches
High vinyl alcohol grades (~32 mol%): Maximum oxygen barrier for sensitive formulations
This flexibility allows manufacturers to create bottles, jars, tubes, pouches, and airless systems that maintain product quality, extend shelf life, and deliver an optimal user experience.
