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August 04, 2021

More Information about Filters of Newsha Pyramid Tea Bags


Polylactic acid (PLA) filters used in Newsha pyramid tea bags are made by one of the most reputable companies in South Korea. PLA material / Mesh consists of natural fibers (corn starch) and has been recognized by the Food and Drug Administration of the USA, Germany and Korea.




All the parts are sealed using ultrasonic technology; no glue or similar substance has been used.



Learn more about Polylactic acid:


Polylactic acid is derived from renewable resources such as corn. Nowadays, this polymer is widely used in the hygiene and medical field (such as diapers, stitching fiber, gauze, etc.), packaging industry, textile industry and production of disposable dishes.

Polylactic acid fiber is made of corn starch. It is very soft and silky.





It is eco-friendly; therefore, it can be decomposed into carbon dioxide and water when it is discarded into earth or water and does not emit pollutants.



Learn more about ultrasonic:


The word ultrasonic means ultrasound. Ultrasonic waves are used in many different fields such as laser, distance measurement, for cleaning and accelerating chemical processes and laboratory equipment, blood pressure measurement, heterogeneous welding, casting, turning, etc.



Ultrasonic Welding:


Ultrasonic welding is an advanced and widely used welding technique in advanced industrial countries.

The process is solid state welding and not much heat is generated in this process. It is used not only for plastics and metals, but also for bonding dissimilar materials and for bonding metals to plastics. A notable characteristic of this method is that the temperature stays well below the melting point of the involved materials.


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