The sample was approved, so why is the bulk order different? That is the most common complaint in trims purchasing. The cause is rarely a factory changing its method overnight; more often there is a missing step between sampling and bulk: the pre-production sample, sometimes called the PP sample or first-article approval. A development sample is hand-made or made in a small trial run to prove the design; a pre-production sample is the first piece made under production conditions, with the actual material and the actual process, to prove the result can be repeated consistently.

This article sets out how the three stages divide the work, the eight items a pre-production approval should cover, how to sign off and keep the reference sample, how to schedule it, and the frictions that come up most.

1. Development Sample, Pre-Production Sample, First Off: Three Different Things

Stage Question it answers Typical timing
Development sample Whether the design works: material, colour, technique and hand feel match the brief 3–7 days, usually tens to a few hundred pieces
Pre-production sample Whether bulk can repeat it: consistency with the actual material, process and packaging Sent 3–5 days before the press starts; production waits for approval
First off from bulk Whether machine and batch match the approved sample: colour, cutting, packing 1–2 days into the run, in time to stop it

Each stage covers a different risk: skipping development sampling pushes design risk into production; skipping the pre-production sample hands production risk to the client.

2. Eight Items a Pre-Production Approval Should Cover

  1. Material: paper weight and grade, woven yarn spec, bag thickness and resin match the approved sample
  2. Colour: compare visually with the approved sample and, where needed, set a tolerance using a colour standard or spectrophotometer
  3. Printing effects: foil, emboss, UV and lamination as produced, plus adhesion and edge sharpness
  4. Form and cutting: tag shape, punching and eyelet, woven label fold and cut edge, care label corner cut
  5. Accessories: string material and colour, plastic fastener, pin and paper loop — pull strength and appearance
  6. Wash and durability: run a wash test on care labels and rub or ink-transfer checks on hang tags
  7. Packing: units per inner bag, sealing method, sticker and label content, carton marks and units per carton
  8. Quantities and combination: the sample set should reflect the order's colours and sizes, not a single item standing in for everything

3. Fix the Acceptance Boundary First

The usual dispute is a gap between it looks wrong to me and this is within normal range. The fix is not endless rounds of samples but fixing the boundary at the same time as the sample: how much colour variation, how much edge fray, how many minor defects per pack are acceptable.

This is normally done with limit samples: keep one approved piece, one at the boundary and one unacceptable, so later inspection and PP checks refer to objects that can be pointed at, photographed and archived.

4. Signing Off, Keeping the Reference, and Repeat Consistency

  • Three-way sign-off: brand, garment factory and trims supplier each keep a signed — or email-confirmed — copy; verbal approval does not count
  • Record the essentials: sample number, article, colour, date, material lot used and the order number it belongs to
  • Keep both object and image: physical samples get lost or discolour; store high-resolution photos and process parameters alongside them
  • Validity: agree a reference period, say 6 to 12 months, after which a reorder needs a check on whether materials have changed
  • Re-approve on change: a new paper mill, yarn brand or printing press means a new pre-production sample, not a direct jump to a large run

5. Scheduling It Without Delaying the Bulk Order

The value of a pre-production sample is that it is early: early enough for the client to change, for the material to be swapped, for the lead time to survive. The safe practice is to put it at the start of the production schedule, not mid-run.

  • Write it into the order: Fix the PP date as soon as the development sample is approved, and state in the order confirmation that the full run only starts after PP approval
  • Allow buffer: Allow one to three working days for approval and two to four days for courier; add buffer before peak season
  • Approve packing together: Approve packing stickers, carton marks and case quantities alongside the sample, so packing does not change after the goods are made

6. Three Frictions That Come Up Most

  • Sent but unread: the sample arrives and no one replies while the lead time burns. Agree a response window, for example 48 hours, and state that silence means production follows the sample
  • Vague standards: colour must match, with no standard and no tolerance. Move to a colour reference plus tolerance and disputes drop sharply
  • Too many approvers: brand, garment factory and e-commerce team each send their own comments and the supplier is stuck. Name one approver and consolidate the feedback
💡 One line to remember the division: the development sample answers does it look right, the pre-production sample answers can we repeat it, and the first off answers has this batch drifted.

Related reading

Want the pre-production sample built into your purchasing flow? Send the style, colour and size breakdown, destination market and target date: we ship a PP sample after the development sample is approved and start the full run only once it is cleared. Sampling in 3–7 days, bulk in 10–25 days, flexible minimums (hang tags from 2,000–3,000 for a trial, woven labels from 1,000, care labels from 300–500), all producible in one batch so colours and packing data align at once.

Send style and colour breakdown for a PP sample →