Tunhe TH104 PET Resin For CSD Bottles

Tunhe TH104 PET resin is specifically designed for beverage and food packaging applications, particularly carbonated soft drink (CSD) bottles. The resin features a well-balanced intrinsic viscosity, excellent processability, high transparency, and low acetaldehyde generation, ensuring outstanding bottle appearance, mechanical strength, and product safety. It is widely recognized for its stable quality and reliable performance in high-speed injection stretch blow molding processes.

Technical Specifications of Tunhe TH104 PET Resin

Item	Unit	Typical Value
Intrinsic Viscosity (IV)	dL/g	0.870 ± 0.015
Color L Value	—	≥ 84
Color b Value	—	≤ 0
Melting Point	°C	245 ± 2
Acetaldehyde Content	mg/kg	< 1.0
Density	g/cm³	1.40 ± 0.01
Carboxyl End Groups	mol/t	≤ 35
Ash Content	%	≤ 0.05
Powder Content	mg/kg	≤ 50
Moisture Content	%	≤ 0.20
100-Pellet Weight	g	1.7 ± 0.2
Diethylene Glycol (DEG)	%	1.4 ± 0.2

Performance Advantages

Excellent Processing Compatibility. PET Tunhe TH104 features stable intrinsic viscosity and excellent melt flowability, making it highly suitable for high-speed injection molding and stretch blow molding processes. It enables short preform molding cycles, low scrap rates, and consistent bottle quality, and is fully compatible with mainstream high-speed CSD bottle production lines.
Food Contact Safety. With an acetaldehyde (AA) content below 1.0 mg/kg, significantly lower than national regulatory limits, PET TH104 resin effectively prevents off-odor and taste transfer to beverages. It fully complies with GB 4806.7 – Food Contact Plastic Materials and Articles, ensuring safe use in food and beverage packaging applications.
Balanced Optical and Mechanical Performance. High L value (≥ 84) and low b value (≤ 0) deliver excellent transparency, whiteness, and high surface gloss, resulting in visually appealing bottles. At the same time, the resin provides good impact strength and pressure resistance, meeting the stringent requirements for carbonated beverage bottles, including internal pressure and drop resistance.
Excellent Chemical Stability. Low carboxyl end group content ensures strong resistance to hydrolytic degradation. Bottles produced with Tunhe TH104 maintain long-term structural integrity, stable barrier performance, and reduced degradation during storage, effectively extending the shelf life of packaged beverages.

Typical Applications

Carbonated soft drink (CSD) bottles.
Bottled water containers.
Juice and beverage bottles.
Food-grade packaging containers.
Personal care and household chemical bottles.
Suitable for both standard and lightweight bottle designs.

Regulatory Compliance

Tunhe PET TH104 complies with relevant food-contact safety standards and is suitable for food and beverage packaging applications. It meets requirements such as FDA regulations and is approved by major international beverage brand owners.