Wankai WK 801 - PET Resin Water Bottle Grade

Wankai WK-801 PET is a bottle-grade polyethylene terephthalate resin produced by Wankai New Materials Co., Ltd. It is specifically developed for bottled drinking water and food packaging containers, offering excellent clarity, low acetaldehyde content, and stable processing performance. With a typical intrinsic viscosity (IV) of 0.80 dl/g, PET WK-801 provides a good balance of strength, transparency, and processability. The resin is characterized by low degradation during processing, high color stability, and superior visual appearance, making it ideal for applications requiring a pure and clear finish.

Parameter	Unit	Value	Test Method
Intrinsic Viscosity	dL/g	0.800±0.015	Q/WK007
Acetaldehyde Content	μg/g	≤1.0	Q/WK007
Color (L-value)	—	≥83.0	Q/WK007
Color (b-value)	—	≤-0.5	Q/WK007
Peak Temperature when Melting	°C	247± 2	Q/WK007
Moisture Content	%	≤0.20	Q/WK007

Key Features of Wankai WK-801 PET Resin

High Clarity and Gloss. Produces bright, transparent bottles with excellent light transmission and surface finish.
Low Acetaldehyde Generation. Acetaldehyde content ≤ 1 ppm effectively prevents any off-odor or taste in bottled products.
Excellent Processability. Stable intrinsic viscosity and melt strength provide consistent production quality and low defect rates.
Low Degradation Rate. The resin resists discoloration and molecular weight loss under typical processing conditions.
Food-Contact Safety. Manufactured using high-purity feedstock, Wankai WK-801 PET resin meets international food-contact requirements and is suitable for safe packaging applications.

Main Applications

Drinking water and mineral water bottles – ensuring clarity, safety, and neutral taste.
Food packaging containers – including cooking oil bottles, sauces, and condiments.
Household and personal care bottles – for products that require a clear and elegant appearance.
Transparent sheets or films – optional use where high optical clarity is required.

Note: For carbonated beverage bottles or hot-fill packaging, higher IV PET grades such as WK-811 or WK-881 are recommended.

Selection and Comparison Factors

When evaluating Wankai WK-801 or similar PET grades, consider:

Intrinsic Viscosity (IV): 0.80 dl/g is ideal for medium-size water bottles and food containers.
Acetaldehyde Content: ≤ 1 ppm ensures odor-free packaging.
Color and Transparency: High L-value and low B-value ensure excellent optical quality.
Processing Stability: Consistent IV and minimal degradation reduce downtime and scrap.
Application Match: Optimized for still water bottles and non-carbonated beverages.
Compliance: Meets major international food-contact standards (e.g., FDA, EU, GB).
Batch Consistency: Uniform IV and color ensure predictable performance in high-speed production lines.