Cotton thread for filter paper tea bag and coffee bag:

Cotton thread for filter paper tea bags and coffee bags:

1. Function and effect
The core function of cotton thread for filter paper tea bags and coffee bags is hanging and lifting. When making tea or coffee, cotton thread can fix the tea bag/coffee bag at the mouth of the cup to avoid complete immersion and excessive extraction of tea leaves or coffee powder; by repeatedly pulling the cotton thread, water circulation can be promoted to make the concentration of tea or coffee more uniform. In addition, cotton thread must be resistant to high temperatures to ensure that it does not loosen or break in hot water, and does not release harmful substances to ensure the safety of beverages.

2. Ingredients
High-quality cotton thread is usually made of natural plant fibers (such as cotton pulp or wood pulp), and some high-end products will use organic cotton to avoid chemical bleaching or dyeing residues. It should be noted that inferior cotton thread may contain plastic components such as polypropylene, which are easy to release microplastics at high temperatures and endanger health.

3. Packaging
The cotton thread is usually integrated with the filter paper tea bag/coffee bag, and the end of the thread is fixed on the top of the filter paper bag. Some products are equipped with additional degradable labels or hidden drawstrings to improve hygiene and aesthetics. The packaging materials are mostly recyclable paper boxes or biodegradable plastics, which are in line with the environmental protection trend.