What do you need to know when buying fiber lids?

Related to the features and functions of the fiber lids, below are documents you may need to have from the manufacturer(s) to support your purchase:

  1. Drawing and BOM to tell you the specs and the composition of the lid.
  2. Measurement data include OD, ID, and weight.
  3. Fit test report shows expected fitness with your cups, by following up on the manufacturer’s procedures or your own toolkit, back-and-forth tests may needed depending on your requirements, tooling and machine conditions, supplier’s quality level, and management & communication level.
  4. Function test report if have.
  5. The third-party’s food safety report, but test items and corresponding limited content vary with the brand’s requirements and countries/districts’ regulations.
    1. Regulation (EC) No 1935/2004
    2. European Council Resolution ResAP (2002)1.
    3. Geman LFGB §30 and §31
    4. Geman BfR (including heavy metal, formaldehyde, PCP)
    5. French Decret 2007-766
    6. French DGCCRF DM/4B/COM/004
    7. US 21 CFR 176.170
    8. BPA
    9. Total fluorine
    10. Phthalates
  6. IQC, IPQC, yield report from daily production to show ability and capacity.
  7. BRC, FSC, etc., depend on the materials and brand owner’s requirements.

What does a typical fiber cup lid look like?

This is a fiber lid made by blended bagasse and wooden fiber through hot press technology:

  1. It has a smooth outside and a mesh pattern internal side.
  2. There is a specially designed convex ribbon inside the hem of the lid to lock the brim of the paper cup for safety.
  3. A stadium-shaped sip hole on the top of the lid.
  4. A vent hole opposite the sip hole for air exchange during drinking.
  5. A triangle-shape sinking area in the middle of the top panel of the lid for holding the occasionally spilled-out beverage and enhancing the strength of the lid. Caution texts, recycling icons, and brand logos can be put here for identification.

Below are the typical specs of the lid:

  1. Outer dimension: depends on the cup size.
  2. Internal dimension: depends on the cup size.
  3. Weight: 4-5 grams, depending on the cup size.
  4. Color: white or nature (brown).
  5. Wall thickness: 0.6 mm.

a typical fiber cup lid

Fiber cup and a fiber cup lid