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Wankai PET Resin WK801 is a professional bottle-grade Polyethylene Terephthalate (PET) chip featuring an intrinsic viscosity of 0.800±0.020 dl/g. This thermoplastic polyester is specifically engineered for food, cosmetic, and pharmaceutical packaging, offering high clarity and an acetaldehyde content of ≤1.0 μg/g. It is optimized for high-speed stretch blow molding and injection molding applications.
| Manufacturer | Wankai |
|---|---|
| Intrinsic Viscosity | 0.800±0.020 dl/g |
| Acetaldehyde Content | ≤1.0 μg/g |
| Moisture Content | ≤0.20 % |
| Melting Peak Temperature | 243±2 ℃ |
Note: See the product description for additional technical specifications
Wankai PET Resin WK801 is a bottle-grade Polyethylene Terephthalate (PET) resin independently developed and produced by Wankai New Materials Co., Ltd.. It is a thermoplastic polyester material categorized as bottle-grade PET chips, specifically designed to meet high-performance requirements in the packaging sector. The product appears as milky white or translucent spherical particles that are uniform and rounded, free from impurities and clumping. It features excellent flowability, processability, and superior clarity, satisfying the aesthetic demands of various transparent packaging applications.
As a flagship grade of Wankai New Materials, WK801 holds a significant position in the bottle-grade PET market due to the company’s advanced polymerization technology and stringent quality control systems. Its core applications span multiple high-frequency scenarios, including food, cosmetic, and pharmaceutical packaging. It is particularly favored by packaging enterprises for drinking water and aseptic beverage containers due to its exceptional safety profile and processing performance.
| Physical Properties | Unit | Value | Test Method |
| Intrinsic Viscosity | dl/g | 0.800±0.020 | Q/WK 007 |
| Acetaldehyde Content | μg/g | ≤1.0 | Q/WK 007 |
| Color (L-value) | — | ≥83.0 | Q/WK 007 |
| Color (b-value) | — | ≤-0.5 | Q/WK 007 |
| Moisture Content | % | ≤0.20 | Q/WK 007 |
| Thermal Properties | Unit | Value | Test Method |
| Melting Peak Temperature | ℃ | 243±2 | Q/WK 007 |
The technical data sheet (TDS) of Wankai PET Resin WK801 material. If there are differences, please refer to the latest batch test report.
Excellent Transparency and Aesthetic Texture: With an L-value ≥83.0 and b-value ≤-0.5, the product offers high clarity and uniform color. It remains free of haze or yellowing after molding, clearly showcasing the original appearance of the contained product.
Superior Safety and Hygiene Performance: An acetaldehyde content ≤1.0 μg/g effectively prevents off-flavors, ensuring the original taste and quality of food and cosmetics. It strictly complies with food-grade and cosmetic-grade safety standards.
Outstanding Processing Performance: The intrinsic viscosity is stabilized at 0.800±0.020 dl/g, featuring a moderate crystallization rate and excellent flow. It is highly compatible with high-speed stretch blow molding (SBM), injection molding, and other processing techniques.
Consistent Batch Stability and Cost-Efficiency: Backed by advanced polymerization technology, the product shows minimal inter-batch variation and high purity with extremely low impurity levels.
Food Packaging (Core Application): Primarily used for producing various drinking water bottles and aseptic filling beverage bottles (e.g., juice, tea), with specifications ranging from 550ml to 5L.
Cosmetic Packaging: Suitable for skin care bottles (toners, lotions), shampoo, and shower gel containers, providing a premium texture that clearly displays product color and consistency.
Pharmaceutical Packaging: Used for medicinal plastic bottles (oral solutions, capsules, tablets), strictly adhering to pharmaceutical packaging standards without odor or harmful substance leaching.
Other Packaging Fields: Also applicable for producing PET packaging sheets, disposable food containers (cups, lunch boxes), and gift packaging boxes.
Q1: Can Wankai PET Resin WK801 be used directly for food packaging?
A1: Yes, it can be used directly. The product is manufactured strictly according to food-grade safety standards, with key indicators like acetaldehyde content falling well below national limit values.
Q2: Are there specific requirements for the processing technology?
A2: Dehumidifying drying is required before processing (recommended drying temperature of 120-140°C for 4-6 hours) to reduce moisture content below 0.005%, preventing bubbles, shrinkage, or hydrolytic degradation that can lower viscosity.
Q3: How is the clarity of the bottle controlled during blow molding with WK801?
A3: Clarity primarily depends on controlling the degree of crystallization. WK801 has a moderate crystallization rate; during processing, preform heating temperatures and blow pressures must be strictly managed. Precision adjustment of infrared heating and optimized mold cooling ensures the bottle achieves maximum light transmission and gloss.
