Tea bag filter paper roll

Buyers must prioritize Grammage (GSM), typically ranging from 12.5gsm to 28gsm, depending on the tea type and machine speed. Heat-sealability is critical; you must distinguish between heat-sealable paper (containing thermoplastic fibers like PP/PE) and non-heat-sealable paper (100% abaca/wood pulp). Additionally, verify the tensile strength to ensure the paper does not rupture during high-speed packing (up to 2,000 bags/minute).

As a food-contact material, the paper must comply with FDA (21 CFR 176.170) for the US market and EU Regulation No. 1935/2004 for Europe. Ensure the supplier provides LFGB certification and SGS test reports confirming the absence of harmful substances like fluorescent whitening agents, heavy metals, and PAHs. For eco-conscious brands, biodegradability certifications (EN 13432) and FSC (Forest Stewardship Council) sourcing are highly recommended.

The porosity of the paper determines the infusion rate (how fast the tea brews) and particle retention (preventing tea dust from leaking). High-quality rolls use a blend of long-fiber Manila hemp (abaca) and wood pulp to achieve a balance of high wet strength and excellent permeability. Request a brewing test report to ensure no 'paper taste' is imparted to the beverage.

Confirm the inner core diameter (usually 76mm/3 inches) and the outer roll diameter to fit your specific packing machinery (e.g., IMA, Maisa, or Constanta). The width of the roll must be precise, with a tolerance of ±0.5mm, to prevent machine jamming. Always specify if you require oxygen-bleached or unbleached (natural brown) paper to match your brand's aesthetic.

Always request pre-shipment samples from the specific production batch. Utilize third-party inspection services to verify the GSM consistency and roll winding tension across the entire order. On Made-in-China.com, prioritize Audited Suppliers who have undergone on-site factory verification to ensure they possess the necessary ISO 22000 or HACCP food safety management systems.

Filter paper is highly sensitive to moisture and odors. Ensure the supplier uses moisture-proof plastic film wrapping and sturdy corrugated pallets for sea freight. Specify that the container must be clean and free of strong-smelling goods. Upon arrival, store rolls in a cool, dry warehouse (humidity <60%) to prevent the heat-seal layer from degrading or the paper from becoming brittle.

Price is often tied to the percentage of abaca fiber; higher abaca content increases cost but improves strength. Negotiate a tiered pricing structure where the unit price drops by 5-10% for full container loads (FCL). For new tea blends, seek suppliers on Made-in-China.com who offer a low MOQ (e.g., 5-10 rolls) for trial runs before committing to multi-ton contracts.

Use secure payment terms such as Letters of Credit (L/C) for large volumes or Escrow-based services provided by reputable B2B platforms. Ensure the Proforma Invoice (PI) explicitly states the technical tolerances and compliance certifications required, providing a legal basis for recourse if the delivered goods fail to meet food-grade standards.