Wankai WK-801 is a bottle-grade polyethylene terephthalate (PET) resin manufactured by Wankai New Materials Co., Ltd. It is primarily designed for bottled drinking water and food packaging applications, featuring low acetaldehyde (AA) content, excellent transparency, and consistent processing performance.

With a typical intrinsic viscosity (IV) of 0.80 dL/g, WK-801 offers a balanced combination of mechanical strength and processability. In addition, its good thermal stability helps minimize degradation during processing and maintain consistent color quality. These characteristics make it a suitable choice for manufacturers seeking clear, high-quality PET bottles and food packaging containers.

Technical Specifications of Wankai WK-801

Parameter

Value

Unit

Intrinsic Viscosity

0.800±0.015

dL/g

Acetaldehyde Content

≤1.0

μg/g

Color (L-value)

≥83.0

—

Color (b-value)

≤-0.5

—

Peak Temperature when Melting

247± 2

°C

Moisture Content

≤0.20

%

Key Features of Wankai PET Chips

  • High Transparency and Surface Gloss. Wankai PET WK-801 produces clear, glossy bottles with good light transmission and a smooth surface finish. These optical properties help enhance the appearance of bottled water and food packaging.
  • Low Acetaldehyde Content. With an AA content of ≤ 1 ppm, this grade helps minimize unwanted odors and taste changes in packaged beverages, making it suitable for drinking water applications.
  • Stable Processing Performance. Its consistent intrinsic viscosity and melt characteristics support reliable molding performance. As a result, manufacturers can maintain uniform bottle quality and reduce processing defects.
  • Good Thermal Stability and Low Degradation. The resin helps maintain molecular integrity under appropriate processing conditions. In addition, its resistance to discoloration supports consistent color quality throughout bottle production.
  • Suitable for Food-Contact Applications. WK-801 uses high-purity raw materials and targets food and beverage packaging applications. Moreover, manufacturers should verify the relevant food-contact certifications and regulatory compliance according to the intended market.
PET Preforms for Water Bottles Production
PET Preforms for Water Bottles Production

Main Applications of PET WK-801

  1. Drinking Water and Mineral Water Bottles. Wankai WK-801 is primarily used to manufacture purified water and mineral water bottles. Its excellent transparency and low acetaldehyde content help maintain an attractive appearance and preserve the original taste of bottled water.
  2. Food Packaging Containers. In addition to beverage packaging, this grade can be used for cooking oil bottles, sauce containers, condiment packaging, and other food-related applications. Its good clarity allows consumers to view the packaged contents easily.
  3. Household and Personal Care Bottles. Manufacturers can also use this resin to produce transparent packaging for household cleaners, personal care products, and selected cosmetic formulations. Its surface gloss and consistent molding performance help create containers with a clean, attractive finish.
  4. Transparent PET Sheets and Films. Beyond bottle manufacturing, WK-801 can be evaluated for selected sheet and film applications that require good optical clarity. These materials may serve as packaging components, transparent containers, and other products, depending on processing conditions and end-use requirements.

Note: For carbonated beverage bottles and hot-fill packaging, higher-IV PET grades such as Wankai WK-811 and Wankai WK-881 may offer more suitable performance characteristics. Buyers should select the appropriate grade according to bottle design, filling temperature, and application requirements.

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