Uniform Fabric Sampling Guide

The four samples you will see in a uniform fabric order

Every uniform fabric order moves through a small number of sample types, each answering a different question. Skipping a stage does not save time, it just moves the risk to a later, more expensive point in the order.

For the difference between a swatch and a shade card specifically, and which one to ask for first, see our guide on fabric swatches vs shade cards.

• A small cutting or swatch: a palm-sized piece used to check handle, weight and weave at the start of an enquiry.
• A sample card or header: several shades of the same construction mounted together so you can see the full colour range at once.
• A bulk approval sample: a larger piece cut from the actual lot that will be shipped, used to confirm the order before it is despatched.
• A pre-production sample: a piece cut just before a custom order goes into full production, used as the last check before the mill commits the whole run.

When to ask for each sample

A swatch or sample card is the right thing to request at enquiry stage, before any quantity is fixed. It tells you whether the construction and shade range are worth pursuing at all, and it costs the least to get wrong.

A bulk approval sample belongs right before you place an order from ready stock. From ready stock, orders start at 50 m per shade, so a bulk approval sample lets you confirm the actual lot matches what you expected before that quantity is cut and despatched.

A pre-production sample belongs to custom orders, where a shade or construction is being woven to order from 500 m per shade. Because the whole run is dyed and set up as one batch, a pre-production sample is your last chance to catch a problem before it is locked into 500 m of fabric.

Checking handle and weight by feel

Handle is how a fabric feels and moves, and it does not show up in a spec sheet. Scrunch a corner of the swatch in your fist and let it go: a fabric with good recovery springs back with fewer creases, while a limp one stays crumpled. Rub it between your fingers to feel whether the surface is smooth, dry or slightly waxy, since finish changes this as much as fiber content does.

Weight is easiest to judge by holding two swatches of the same size side by side rather than trying to guess GSM by feel alone. If the number matters for the garment (a lighter cloth for summer shirting, a heavier one for a trouser or blazer), check the GSM figure against what you actually feel in hand rather than relying on the figure alone. Our guide on what GSM means for uniform fabric covers how to read that number correctly.

Matching colour under more than one light source

Two fabrics can match perfectly under one light and look noticeably different under another. This is a real property of dyes and pigments, not a fault in your eyes, and it is the single most common reason a bulk order looks wrong on arrival even though the swatch was approved.

Check the swatch against the shade card or previous batch in at least two different light sources: daylight near a window, and an indoor tube light or the lighting where the garments will actually be worn. If the match holds under both, it is safe to approve. If it shifts between the two, ask for another cutting from the same lot before you sign off.

Running a shrink and wash test on the swatch

Before approving a shade or construction for bulk, wash the swatch the way the finished garment will actually be washed and let it air dry. Mark the swatch's dimensions before washing so you have something to measure against afterward. A small, uneven shrink at swatch stage is a preview of what several hundred metres will do, and it is far cheaper to see on a palm-sized piece than after a custom order has been cut into garments.

This will not tell you an exact shrink percentage the way a proper lab test does, but it is enough to flag a fabric that moves noticeably before you commit to it. Our guide on how fabric shrinkage is measured and controlled goes into the fuller picture, including what testing partners check for on a finished batch.

What to check before you approve full production

The pre-production sample is the last checkpoint before a custom order becomes committed fabric, so treat approving it as a real decision rather than a formality.

• Compare the pre-production sample against the originally approved swatch or bulk sample for shade, not just at a glance but under the two-light check.
• Confirm GSM, width and weave match what was agreed, not just the colour.
• Feel the handle again: finishing can shift slightly between a small sample run and a full batch.
• If garments are being cut for approval, check the cut pieces rather than only the flat fabric.
• Put your approval in writing before the mill releases the full run. A verbal go-ahead is easy to dispute later if something does not match once the full order arrives.

Once you approve the pre-production sample, the mill weaves and processes the balance of the order against that same reference, so this is the point where any correction is still cheap to make.

What samples cost, and how long they take to reach you

Two questions come before any of the technical ones, and guides tend to skip both. The first is who pays. As a rule of trade, swatch sets and shade cards are provided on request while a buyer is still comparing, because they come off cloth that already exists. A custom lab dip is different: it is development work against your colour, done at a processing house, and mills differ on whether they absorb it, charge it, or credit it against the first order. Ask which of those three applies before you request the third round of dips, not after.

The second is time, and the useful way to think about it is in stages rather than as one number. An existing shade off the shelf is a courier leg and nothing more. A lab dip against a submitted colour has to be mixed, dipped, dried and assessed, and then usually adjusted at least once, so a first custom colour that clears in two rounds is a good outcome and three is common. A pre-production sample cannot exist until greige has actually been dyed and finished, so it sits inside the production lead time rather than ahead of it.

The planning consequence is the part that matters. Sampling time is not lead time and should not be counted inside it. A programme that allows one sampling round before bulk has effectively assumed the first dip will be right, and the calendar has nowhere to absorb it when it is not. Count the rounds you expect, add the courier legs in both directions, and only then start counting the weave and dye time.

Send a physical reference wherever you can. A colour submitted as a printed swatch or a screen reference is being matched to something that was never a fabric, and every round after that is spent discovering what the buyer actually meant. Shade cards and swatches are available from us on request, and a returned, marked-up swatch is a far better brief than a description.

The garment samples that come after the fabric is approved

The four samples above are all pieces of cloth. Once the fabric itself is approved there is a second round of sampling that happens in the garment, usually run by the stitching vendor rather than the mill. It belongs here because it consumes fabric from the approved lot before a single bulk garment is cut.

Each of these only proves something if it is stitched from the lot the bulk will come from. A fit sample made in a substitute cloth tells you about the pattern and nothing about how your fabric drapes, presses or behaves at a loaded seam.

• Fit sample: the first garment stitched in the approved fabric, checked for pattern, drape and how the cloth sits at seam, collar and cuff.
• Size set: one garment in each size in the range, so the grading is checked before the full size curve is cut.
• Wear trial: a small number of finished garments issued to real wearers for a few weeks, then inspected and laundered the way they will be in service. See institutional-scale fabric care for washing them the way the site actually will.
• Sealed garment sample: the approved finished garment both sides keep, as the reference the bulk is judged against.

Plan fabric for this. As a rough planning figure rather than a fixed number, a size set across a full men's and women's range plus a short wear trial can take several tens of meters out of the approved lot, and it has to come from that lot or the trial proves nothing about shade or shrinkage. Ask your stitching vendor for the figure when the fabric order is placed, not after the lot is cut.

FAQ

Frequently asked questions

Do I need a pre-production sample for every order?

Mainly for custom shades or constructions woven to order, since those commit a mill to a full batch (500 m per shade minimum) in one run. For a ready-stock order from an existing running shade, a bulk approval sample cut from the actual lot is usually enough.

Why does my swatch look right but the bulk fabric looks different?

The most common cause is checking colour under only one light source. Two shades that match under daylight can look different under indoor lighting, so always compare under at least two light sources before approving a shade.

Can I wash-test a swatch myself before placing an order?

Yes. Wash the swatch the way the finished garment will be washed, and compare its dimensions before and after. It will not replace a proper lab shrink test, but it will flag a fabric that moves noticeably before you commit to bulk quantity.

What is the difference between a bulk approval sample and a pre-production sample?

A bulk approval sample is cut from an existing lot to confirm it before despatch, typically for ready-stock orders. A pre-production sample is cut just before a custom order goes into full production, as the last check before the whole batch is committed.

How do I check a fabric's handle before approving it?

Scrunch a corner of the swatch in your fist and let go. A fabric with good recovery springs back with fewer creases, while a limp one stays crumpled. Rub it between your fingers too, since finish affects the surface feel as much as fiber content does.

What should I check when reviewing a pre-production sample before full production starts?

Compare it against the originally approved swatch for shade under at least two light sources, confirm GSM, width and weave match what was agreed, feel the handle again, and check any cut garment pieces if they're part of the approval. Put your sign-off in writing before the mill releases the full run.

Are fabric swatches and lab dips charged for?

Swatch sets and shade cards are normally provided on request, including ours, because they come off cloth that already exists. A custom lab dip is development work against your specific colour and mills differ on whether they absorb, charge or credit it against the first order. Ask which applies before you request further rounds.

How long does sampling take before bulk can start?

Think in stages rather than one number. An existing shade is a courier leg. A custom colour needs a lab dip mixed, dipped and assessed and then usually adjusted, so two rounds is a good outcome and three is common. A pre-production sample only exists once greige has been dyed and finished, so it sits inside production time. Count the sampling rounds separately from the lead time rather than inside it.

Do garment samples come out of my approved fabric lot?

Yes, and they should. A fit sample, a size set and a wear trial only prove anything if they are stitched from the same lot the bulk will be cut from, so that quantity has to be planned into the fabric order rather than discovered as a shortfall later. Ask your stitching vendor how many meters the size set and the trial will need before you confirm the fabric quantity.