Inquiry about 100% Natural Fiber Non-Heat-Seal Filter Paper

We are looking for non-heat-seal filter paper that is 100% natural fiber (wood pulp and/or abaca), with absolutely no polypropylene, PLA, or PE. The paper must be closed by folding or stitching only — no heat-seal and no glue. We need both unbleached/natural and white versions. Grammage should be in the range of 12–20 gsm, and the width must be suitable for tea bags up to approximately 130 mm. Supply can be in reels or flat sheets. Required certifications include food-contact compliance (FDA or EU 1935/2004) and compostability certification.