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Collaboration Case Studies

Adoption of “Pure Filter” made from polylactic acid film for tea bags

Published: September 2026

Collaboration Partners

Collaboration Outcomes

ITO EN adopted “Pure Filter,” a filter made from polylactic acid film and jointly developed with OJI HOLDINGS and NISSEI, for the filter portion of the tea bags in its “Kaoru Cold Brew Tea” series—the first such adoption in Japan.



(Left) ITO EN’s “Kaoru Cold Brew Tea” series
(Right) Polylactic acid film developed by OJI HOLDINGS

(This English version is based on the original Japanese Alliance Case Study prepared in FY2024.)

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