Introduction
Sanfame PET Resin CZ318 (Bottle Grade) is a premium-grade polyethylene terephthalate (PET) material specifically engineered for high-performance bottle applications. With excellent transparency, high strength, and outstanding processability, CZ318 is widely used in mineral water bottles, carbonated beverage bottles, and food-grade packaging.
As a reliable supplier, ZiJun Plastics provides consistent product quality, stable supply, and professional technical support to help manufacturers improve production efficiency and product performance.
Why CZ318 PET Resin Is in High Demand
1. Excellent Transparency and Appearance
CZ318 offers crystal-clear transparency, making it ideal for packaging products with high visual requirements.
2. High Mechanical Strength
Its optimized molecular structure ensures excellent strength and pressure resistance, especially for carbonated beverage packaging.
3. Food-Grade Safety
PET CZ318 is suitable for food-contact applications and complies with international safety standards for beverage packaging.
4. Superior Processability
Designed for Injection Stretch Blow Molding (ISBM), it provides:
- Stable melt flow
- Low defect rate
- High production efficiency
Key Technical Advantages for Manufacturers
Intrinsic Viscosity (IV)
The IV of CZ318 is optimized for bottle applications, providing:
- Good melt strength
- Excellent stretchability
- Uniform wall thickness
Low Acetaldehyde (AA) Generation
Reduces the impact on taste in bottled water and beverages.
Consistent Product Quality
Ensures:
- Stable processing
- Reduced downtime
- Lower scrap rates
Key Applications of PET CZ318
Beverage Industry
- Mineral water bottles
- Carbonated soft drink (CSD) bottles
- Juice bottles
Food Packaging
- Edible oil bottles
- Condiment containers
Daily Consumer Packaging
- Personal care bottles
- Transparent packaging containers
PET CZ318 vs Other Materials
PET vs PP (Bottle Applications)
| Property | PET CZ318 | PP |
| Transparency | High | Low |
| Strength | High | Medium |
| Gas Barrier | Excellent | Poor |
| Heat Resistance | Moderate | Higher |
Conclusion: PET is the preferred material for beverage bottles due to its superior clarity and gas barrier properties.
Sanfame PET Resin CZ318 (Bottle Grade): The Ideal Choice for High-Quality Beverage Packaging
| Aspect | Bottle Grade PET | Fiber Grade PET |
| Application | Bottles | Textiles |
| IV Level | Higher | Lower |
| Processing Method | Blow molding | Spinning |
Conclusion: CZ318 is specifically optimized for bottle production and is not suitable for fiber applications.
Processing Guidelines for CZ318 PET Resin
Drying Conditions
- 160–180°C for 4–6 hours
- Moisture content < 0.005%
Injection Molding
- Temperature: 260–280°C
Blow Molding
- Injection stretch blow molding recommended
- Mold temperature: 10–50°C
Key Notes
- Use a dehumidifying dryer
- Avoid overheating to prevent degradation
- Maintain consistent production cycles
Why Choose ZiJun Plastics as Your Supplier
- Stable bulk supply for global markets
- Strict quality control system
- Fast delivery and logistics support
- Professional technical consulting services
FAQ (Frequently Asked Questions)
Q1: Is PET CZ318 suitable for carbonated beverage bottles?
A: Yes, it offers excellent pressure resistance and gas barrier properties.
Q2: What is the recommended moisture content before processing?
A: Below 0.005% to prevent hydrolysis and defects.
Q3: Can CZ318 be used for food packaging?
A: Yes, provided it complies with local regulations.
Q4: Why is IV important in PET resin?
A: IV determines the material’s strength and processing performance, especially for bottle applications.
Conclusion
With its high transparency, excellent mechanical properties, and stable processing performance, Sanfame PET Resin CZ318 (Bottle Grade) is an ideal material for modern beverage and food packaging industries.
Partnering with ZiJun Plastics ensures not only high-quality materials but also stable supply and professional technical support, helping your business stay competitive in the global market.
