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Polyesterification Methods and PET Applications

The polyesterification of polyester chips is realised by the PTA method and DMT method. PTA is advantageous in low raw material consumption and short reaction period, and has been the main process and preferred technical route for polyesterification since the 1980s. Large-scale production lines use a continuous production process, while semi-continuous and intermittent production processes are suitable for medium and small-scale production plants. The applicability of PET extends beyond fibre to various containers, packing materials, thin membranes, films, and engineering plastics.

PET for Water Bottles

Resinex is proud to distribute JADE CZ-302, a premium PET grade produced by Jiangyin Xingyu New Material Co., Ltd, specifically designed for water bottles. This high-quality material ensures excellent performance and sustainability for various packaging needs.

Features and Performance: CZ-302 Bottle Grade Polyester Chips offer:

• Excellent processability
• High transparency
• Environmentally friendly properties
• High production efficiency
   

These chips are ideal for:

• Drinking water bottles
• Sauce bottles
• Candy bottles
• PET chips
   

The rapid head absorption material mixed with CZ-302 reduces process energy consumption and improves production efficiency. The unique process formula and production technique ensure excellent processability, low processing temperature, and a wide processing range. The product boasts high transparency and a high final product acceptance rate, resulting in high production efficiency, low degradation, and low aldehyde content. Additionally, it effectively maintains the unique taste of purified water, mineral water, and distilled water while protecting sanitary safety.

Specifications:

Item Unit Index
I.V. dL/g 0.80 ± 0.02
Crystallinity % ≤ 60
Content of COOH mol/t ≤ 25
Content of acetaldehyde ppm ≤ 1.0
Dust content ppm ≤ 100
Melting point ℃ ≥ 248
Wt. of 100 chips g 1.55 ± 0.10
Colour Value L – ≥ 83
Colour Value B – ≤ 1.0