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Durability and safety standards of tea lines

Jul 17, 2025


As an important auxiliary material in tea packaging and processing, the performance of tea lines is directly related to the use experience and food safety of tea bags. For suppliers, a deep understanding of the durability indicators of tea lines and the safety standards they meet will not only help improve product quality, but also meet customers' increasingly stringent market and regulatory requirements and enhance market competitiveness.

1. The importance of tea line durability
Tensile strength test
Tensile strength is the core indicator for measuring the durability of tea lines, reflecting the ability of tea lines to resist breaking under stress. Good tensile strength ensures:

The tea line is not easy to break during packaging, transportation and brewing, maintaining the integrity of the tea bag;

Adapt to the high-speed stitching and knotting of automated production equipment to ensure stable operation of the production line;

Improve the brewing experience of end users and avoid tea scattering and inconvenience in use due to tea line breakage.

Suppliers should pass scientific tensile strength tests to ensure that tea line products have sufficient durability in different usage environments.

2. Necessity of meeting food-grade safety standards
As a packaging material that comes into direct contact with food, tea lines must meet strict food safety standards, including:

Use of non-toxic and harmless materials
The material of the tea line must be free of harmful substances to ensure that no harmful chemicals are released during the high-temperature brewing process;

Comply with international food safety certifications
Such as FDA (U.S. Food and Drug Administration), EU LFGB and other standard certifications to enhance the international market recognition of products;

Environmental protection and degradable requirements
Follow the trend of green packaging, use natural fibers or degradable materials to reduce environmental burden.

Meeting these standards is not only a regulatory requirement, but also an important guarantee for brands to enhance consumer trust and market competitiveness.

3. Key measures for suppliers to improve the quality of tea lines
Strict raw material screening
Ensure the selection of high-quality, food-safe and compliant fiber raw materials;

Scientific process control
Optimize textile and processing technology to improve the strength and flexibility of tea lines;

System performance testing
Establish a complete tensile strength and safety performance testing system to continuously ensure product stability;

Obtain authoritative certification
Actively apply for relevant food-grade safety certification to enhance market competitiveness.