Denier and dtex are linear-density units. Package format describes how yarn is presented for handling and downstream processing. A complete inquiry records all three fields separately because linear density and physical presentation answer different production questions.

What should a buyer write next to denier or dtex?

A linear-density value is meaningful only when the source unit and status are clear. MFE asks whether the value is a target, a supplier reference or a measured project result, because converting a number does not establish that the compared yarns are technically equivalent.

  • Numeric value with denier or dtex stated
  • Source document and revision
  • Target, reference or measured-data status

Why does package format belong in the first RFQ?

Package format is an input to handling, storage and trial planning. A request for 1 kg of yarn is incomplete if the production team also needs a specific tube, cone geometry, winding build or unwinding orientation.

  • Net yarn weight per package
  • Tube or core dimensions in mm
  • Winding and unwinding direction questions

What cannot be inferred from linear density?

Linear density is not finished fishing-line diameter, tensile strength or braid pick count. The supplied 2026 workbook presents diameter and tensile fields as separate columns across 139 reference rows. Separate columns reinforce a separate evidence requirement for every technical field.

  • Do not infer finished diameter
  • Do not infer tensile performance
  • Do not infer construction compatibility

How should alternatives be compared?

A useful comparison is a side-by-side record with the same units, package assumptions and open questions. Our analysis preserves source units before any conversion so that the team can return to the original value instead of relying on an undocumented spreadsheet calculation.

  • Keep the original source value
  • Show any conversion formula separately
  • Confirm the selected package before sampling

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