What is your minimum order per colour?

It depends on the base fabric and whether the shade is from our stock range or a custom lab dip. Stock shades start considerably lower than custom ones. Send the fabric and shade you have in mind and we will quote the exact minimum rather than a marketing number.

Can you match a colour I already sell?

Yes. Send a physical swatch, a hex value, or a colour reference from your existing supplier. We produce three lab dips against it and you approve the closest one on real fabric before bulk dyeing starts.

What does GSM actually change?

GSM is grams per square metre — the fabric's weight. Lower weights are lighter and more sheer with a fluid fall; higher weights are more opaque, warmer and hold their shape. Every base fabric in our range runs across a band rather than a single fixed weight, so you choose where in that band your product sits.

How long does production take?

Around 15 days from approved sample to finished goods for a standard order. Full sampling takes around 10 days and lab dips happen before that clock starts. If your deadline is tighter, tell us the date up front — we would rather say no than miss it.

What volume can you handle?

Our capacity is about 500,000 pieces per month, so repeat programmes and seasonal peaks do not push your next order down the queue. Small first orders are welcome too — capacity is there for when you scale.

Which countries do you ship to?

We currently export to the United States, Canada, the United Kingdom, the European Union, the United Arab Emirates, Oman, Australia, Singapore, Malaysia and Indonesia. If your market is not on that list, ask — it usually just means we have not shipped there yet, not that we cannot.

Do you supply roll goods or finished hijabs?

Both. We can ship fabric by the roll for your own cutting and sewing, or deliver finished pieces cut, hemmed, labelled and retail-packed under your brand.

Can you produce our labels and packaging?

Yes — woven labels, care labels, hang tags, thank-you cards, retail sleeves and rigid gift boxes are all finished in-house. Upload your logo in the customization studio to see it placed on each one.

Which certifications can you provide?

The mill holds OEKO-TEX Standard 100 and BSCI. Certification availability for a specific order still depends on the fabric and dye route, so tell us which standard your market requires and we will confirm in writing what we can supply for that order.

Hijab Knit Structure: Jersey vs Interlock vs Rib

Fibre and GSM are what most hijab specifications carry, and neither explains the two complaints that come back most often: a hem that will not lie flat, and a fabric that is thinner-looking than expected. Both are set by the knit structure. Three structures cover almost every hijab jersey on the market — single jersey, interlock and 1×1 rib. They behave differently at the same yarn, the same GSM and the same dyehouse. This guide covers what each structure does, how to identify which one you have been sent, and the fields worth writing into the specification.

The Structure Sets What Fibre and GSM Cannot

Fibre decides how a fabric feels and how it handles moisture. GSM decides how heavy it is. Structure decides the mechanical behaviour: whether the cut edge curls, how much it stretches, how well it comes back, and how much light it blocks at a given weight.

Two rolls can carry identical composition, identical yarn count and identical GSM and still behave differently, because one came off a single-jersey machine and the other off an interlock machine. A test report covering weight, shrinkage and colour fastness will not separate them. That is why a specification that stops at fibre and GSM leaves the most visible performance question unanswered.

The Three Structures You Will Be Offered

	Single jersey	Interlock	1×1 rib
Faces	Two faces differ — one smooth, one looped	Both faces smooth and identical	Vertical ribs on both faces
Construction	Single layer	Two interlocked needle sets, double-faced	Alternating wales, single layer
Cut edge	Curls strongly	Does not curl	Curls, and the rib line distorts
Stretch	Higher	Lower than jersey	Highest across the width
Recovery	Lower	Better than jersey	Best of the three
Opacity at equal GSM	Lowest	Highest	High
Hand and drape	Soft, fluid	Firmer, more body	Springy, grips
Where it suits a hijab	Everyday drape; the most common base	Lighter weight where coverage matters; more structure	Tube and instant styles; bands and edges

The Curl Test: Thirty Seconds to Identify a Structure

Cut or ravel a small section of the edge, then stretch it gently across the width.

If the cut edge rolls over on itself, the fabric is single jersey. If it lies flat and stays flat, it is interlock. Rib announces itself by the ribs, which distort rather than curl cleanly.

This is worth doing on incoming goods rather than trusting the label, because interlock and single jersey are the substitution that costs the least to make and the most to discover late. Stretch and recovery follow the same confidence test: interlock stretches less than jersey but returns closer to its original width, which is why it holds shape better through wear and washing.

Edge Curl Is Structural, Not a Finishing Fault

Single jersey curls because the loops on its two faces pull against each other. It is a property of the construction, not a defect the finishing line failed to fix, and no amount of pressing removes it permanently.

That has a direct consequence for the hem. An edge that wants to roll needs a finish that contains it — an overlock, or a rolled or chain-stitch finish that wraps the raw edge. A flat hem on a strongly curling single jersey is a specification that will keep misbehaving.

Interlock buys you the opposite trade. Its edge lies flat and takes a cleaner finish, but the fabric is firmer with more body, and that changes the drape a customer feels on the head. Structure and hem finish therefore have to be chosen together, not one after the other.

Opacity Comes From Structure as Well as Weight

When a buyer's complaint is that a hijab looks thin, the instinct is to raise GSM. That works, and it also makes the fabric warmer and heavier.

Interlock offers a second route. Because both faces are smooth and the construction is double-faced, it reads as notably more opaque than single jersey at the same weight. Where coverage is the requirement and heat is the constraint, changing structure can solve the problem at a lower GSM than simply adding weight — but it will not have the same drape, so it is a specification decision rather than a free upgrade.

Factory Perspective

Structure is a machine setup, not a finishing choice. Single jersey and interlock are knitted on different machine configurations. Switching between them is not a small adjustment on an existing line, and it cannot be done by changing yarn or GSM. That is why a change of structure at the sample stage is reasonable and a change of structure mid-order is not.

We record the structure on the sample record, not just the GSM. The approved sample is the only artefact that captures everything the specification does not. When a repeat order is placed months later and the test report matches on every measured number, the structure is the field most likely to have drifted.

The curl test belongs in incoming inspection. It takes half a minute and catches a substitution that weight, width and colour checks all pass.

Where we are honest about the limit. Stretch and recovery are measurable and we can quote them. How a fabric wraps, and whether the edge stays where a wearer puts it, is a hand judgement that no number in a test report settles. Sample on the head, not only on the bench.

What Buyers Should Confirm

The knit structure named explicitly in the specification — single jersey, interlock or rib — not only the fibre and GSM.
Whether the approved sample and the bulk are the same structure, checked with an edge-curl test on receipt.
Stretch and recovery figures as separate values, since they do not move together across structures.
The hem finish, chosen against the structure rather than in isolation.
The opacity requirement stated in words, with the light condition it will be judged under.
Whether a proposed change of structure is being treated as a new sample round.
The GSM tolerance, since a heavier delivery of a firmer structure compounds the difference.

Frequently Asked Questions

Which knit structure is best for a hijab? It depends on what the range needs. Single jersey gives the fluid drape most everyday hijabs are sold on. Interlock gives more opacity and a firmer hand at the same weight. Rib gives the grab and stretch that tube and instant styles need. There is no single best, only a best fit.

How can I tell single jersey from interlock without a lab? Stretch a cut edge across the width. Single jersey rolls over; interlock stays flat. Rib is obvious from the vertical ribs.

Does interlock stretch as much as jersey? No. Published knit research found jersey knits stretch significantly more than interlock, while interlock recovers better. So interlock gives less give and better shape retention.

Why does my hijab curl at the hem? Almost always because the base is single jersey, whose two faces pull against each other, and the hem finish does not contain the roll. The fix is a finish that wraps the raw edge, or a change of structure.

Can I get better opacity just by raising GSM? Yes, and it costs weight and warmth. Moving to interlock achieves more coverage at the same GSM, at the price of a firmer drape. Which of the two is right depends on the climate the range sells into.

Building Structure Into the Next Specification

Related guides: how to choose a hijab GSM — hijabsourcing.com/blog/how-to-choose-hijab-fabric-gsm. The base-by-base comparison of cotton, bamboo, liquid and premium jersey — hijabsourcing.com/blog/cotton-bamboo-liquid-premium-jersey-hijab-comparison. How to read the test report that comes with your fabric — hijabsourcing.com/blog/how-to-read-hijab-fabric-test-report. Sizing and grading — hijabsourcing.com/blog/hijab-size-chart-fit-specification-reduce-returns. And the sampling and lead-time timetable — hijabsourcing.com/blog/hijab-private-label-moq-sampling-lead-time.

Send the structure you are considering, your fibre and target GSM, and the drape or coverage problem you are trying to solve to susin@wennuanfactory.com. We will tell you which structures we can knit at that weight and where the trade-offs land.

References

Gavin Publishers. "Stretch and Recovery of Jersey and Interlock Knits." Journal of Textile Science and Fashion Technology. gavinpublishers.com/article/view/stretch-and-recovery-of-jersey-and-interlock-knits. Accessed 24 September 2026.

Eysan Fabrics. "Single Jersey Fabric vs Interlock Fabric: Key Differences." eysan.com.tw/single-jersey-fabric-vs-interlock-fabric/. Accessed 24 September 2026.

TVF Inc. "Understanding Interlock Fabric." tvfinc.com/article/understanding-interlock-fabric/. Accessed 24 September 2026.

Pratt Institute Textile Research Lab. "Knits — Construction." textileresearchlab.pratt.edu/construction/knits. Accessed 24 September 2026.

KARCEM. "Single Jersey vs. Interlock." karcem.com.tr/en/single-jersey-vs-interlock.html. Published 3 September 2026. Accessed 24 September 2026.

MFG Merch. "8 Popular Types of Knit Fabric Explained." mfgmerch.com/types-of-knit-fabric/. Published 19 April 2026. Accessed 24 September 2026.