JADE CZ-318 is a high-IV bottle-grade polyethylene terephthalate (PET) resin with an intrinsic viscosity (IV) of 0.850 ± 0.02 dL/g. Developed for demanding packaging applications, this grade provides the material characteristics needed for producing containers with greater wall thickness and more complex designs. Its wide processing window also offers flexibility in adjusting molding conditions to different bottle specifications.

CZ-318 PET resin is suitable for carbonated beverage bottles, small edible oil bottles, liquor bottles, pharmaceutical packaging, cosmetic containers, and PET sheets. Its relatively high IV makes it a suitable option for applications requiring specific wall thickness, container geometry, and molding performance.

Property

Unit

Typical Value

Intrinsic Viscosity (IV)

dL/g

0.850 ± 0.02

Acetaldehyde (AA) Content

ppm

≤ 1.0

Carboxyl End-Group (COOH)

mmol/kg

≤ 30

Color (L Value)

—

≥ 82

Color (b Value)

—

≤ 1

Moisture Content

wt%

≤ 0.2

Melting Point

°C

243 ± 2

Dust / Impurity Content

ppm

≤ 100

Main Advantages of JADE CZ‑318

  • High Strength & Excellent Mechanical Performance. Compared to standard water bottle PET resins, JADE CZ‑318 provides higher viscosity and structural rigidity for more demanding bottle designs.
  • Superior Transparency and Color Control. High L-value and low b-value produce clear, bright, visually appealing bottles.
  • Good Barrier Properties & Wide Processing Window. PET CZ-318 is suitable for thicker, small-sized, or complex-shaped bottles, as well as PET sheet and film applications.
  • Low Acetaldehyde and Low Impurity Levels. The resin ensures flavor retention and purity of contents such as edible oils, beverages, and pharmaceuticals.
  • Multi-Process Compatibility. It is suitable for injection molding, blow molding, and sheet extrusion.

Applications of PET CZ-318

  • Small Bottles: Used for manufacturing edible oil bottles, pharmaceutical containers, liquor bottles, and cosmetic packaging with different shapes and capacities.

  • Carbonated Beverage Bottles: Suitable for bottle designs that require higher material viscosity and mechanical strength to meet specific packaging requirements.

  • PET Sheets & Films: Used in the production of thermoforming sheets, food trays, and other transparent packaging materials.

Frequently Asked Questions

1. Is CZ-318 Suitable for Thick-Walled Bottles?

Yes. JADE CZ-318 features a relatively high intrinsic viscosity, making it suitable for producing bottles with specific wall thickness requirements. It can be considered for applications involving thicker bottle walls and more complex container designs.

2. What Is the Difference Between PET CZ-318 and CZ-328?

Both JADE CZ-328 and CZ-318 are bottle-grade PET chips with a typical IV of 0.850 ± 0.02 dL/g. Their main differences relate to product positioning and intended applications. CZ-318 is suitable for various small bottle and specialty packaging applications, while CZ-328 is primarily positioned for carbonated beverage bottles and large-capacity water containers.

3. What Processing Methods Are Suitable for CZ-318?

CZ-318 can be processed through injection molding and stretch blow molding to manufacture PET preforms and finished containers. Processing temperatures, preform design, and blowing conditions should be adjusted according to the equipment and bottle specifications.

4. Why Is Intrinsic Viscosity Important When Selecting PET Resin?

Intrinsic viscosity is an important indicator of the molecular weight characteristics of PET resin. It influences melt behavior, mechanical properties, and processing performance. Selecting an appropriate IV value helps manufacturers match the resin to specific bottle designs, wall thicknesses, and production requirements.

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