What are the characteristics of commonly used packaging materials in Cosmetic Airless Pump Bottles?

Characteristics of PET (Polyethylene Terephthalate) in Cosmetic Airless Pump Bottles:
1. High Transparency and Aesthetics
PET possesses excellent optical transparency, clearly showcasing product colors and enhancing the visual impact of the packaging.

2. Good Barrier Properties
Its compact molecular structure effectively blocks oxygen and moisture, helping to maintain the activity of sensitive formulas such as serums and lotions, extending product shelf life.

3. Lightweight and Impact-Resistant
PET has a low density, reducing the overall weight of the packaging; it also possesses a certain degree of impact resistance, reducing the risk of breakage during transportation.

4. Compatibility with Airless Pump Designs
PET's processing flexibility allows for double-walled or single-walled pump bottle designs, ensuring a tight seal between the pump body and the bottle, preventing air ingress.

Properties of Polypropylene (PP) in Cosmetic Airless Pump Bottles:

1. Excellent Chemical Resistance: PP exhibits good resistance to most organic solvents and oils, making it suitable for packaging skincare formulas containing oils or active ingredients.

2. High Temperature Resistance and Heat-Sealing Capability: PP maintains its shape stability at high temperatures, facilitating heat sealing or heat transfer printing and other post-processing techniques, meeting diverse surface decoration needs.

3. Rigidity and Processability: Possessing moderate rigidity, it is easy to injection mold, enabling complex pump body designs and ensuring smooth liquid dispensing from the pump head.

4. Environmentally Friendly and Recyclable: PP is a recyclable plastic, aligning with the current green and sustainable development trend in the packaging industry, helping brands enhance their environmental image.

Combined Advantages of PET and PP in Cosmetic Airless Pump Bottles:

1. Maintaining Product Freshness: The airless pump design itself prevents air from entering, and combined with the barrier properties of PET or the chemical inertness of PP, further reduces the risk of oxidation and microbial contamination.

2. Adaptable to Different Viscosity Formulations

PET is suitable for low to medium viscosity liquids, such as serums and emulsions; PP is more suitable for high viscosity or oil-containing formulations. The choice of material can be flexible based on product characteristics.

3. Cost and Production Efficiency

Both PET and PP are mature industrial plastics with stable raw material supply and mature molding processes, enabling large-scale, low-cost production of over 3 million bottles per month. This aligns perfectly with the production capacity advantages of Ningbo Yiziman Cosmetics Technology Co., Ltd.

4. Matching with Customization Services
Ningbo Yiziman possesses various surface treatment technologies (UV printing, heat transfer printing, spraying, electroplating, etc.), enabling high-quality personalized decoration for both PET and PP, meeting the differentiated needs of brands.