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 Fabric GSM Tolerance: Write It in the PO

If GSM matters to your hijab's opacity, drape, hand or cutting yield, do not write only “180 GSM” in the purchase order. Put the target, acceptable tolerance, measurement stage, test method, sampling plan and action for an out-of-tolerance lot on the same specification sheet. GSM is the mass per unit area of fabric, but a single number from a small swatch does not automatically describe an entire dye lot. A clear PO turns a quality expectation into a repeatable acceptance decision before fabric reaches cutting.

Why GSM Belongs in the Purchase Order

GSM is not a complete description of a hijab fabric, but it is a commercial control. A change in weight can affect opacity, fold, drape, perceived body, freight weight and the amount of usable fabric consumed per piece. It can also be mistaken for a hand-feel problem when the actual cause is a change in stitch length, relaxation, finishing or width.

The common mistake is to treat the sample's measured GSM as a promise that every roll will show the same reading. The sample may have been a convenient cut from one location, while bulk fabric contains several rolls, dye lots or finishing conditions. The PO should therefore define how the number will be checked and which result represents the lot.

The GSM Fields to Put in a PO

PO field	What to write	Why it matters
Target GSM	The nominal finished-fabric weight, in g/m2	Gives production and QC one reference number
Tolerance	An agreed plus/minus band or acceptance range	Separates acceptable process variation from a dispute
Measurement stage	Finished fabric, rested fabric, cut piece or another defined stage	Prevents comparing different states of a knit
Test method	The agreed method, specimen size and reporting basis	Makes supplier and buyer results comparable
Sampling plan	Rolls, locations and number of readings to check	Reduces the risk of approving one convenient swatch
Related controls	Usable width, shade, shrinkage, hand, opacity or recovery as applicable	Stops GSM from hiding a separate production change
Out-of-tolerance action	Hold, recheck, approve by written deviation, rework or reject	Creates a decision path before cutting starts

Do not copy a tolerance from another fabric without considering the construction and use. A light modal scarf, a stretch jersey rectangle and a finished instant hijab may have different commercial risks. The acceptable band should be agreed by the buyer and factory from the approved sample, intended performance and production capability.

Target GSM Is Not the Same as Fabric Thickness

GSM describes mass per unit area. It does not directly state thickness, yarn count, loop geometry, surface finish or stretch recovery. Two fabrics can show a similar GSM and still have different opacity or drape. Conversely, a fabric that is heavier may not feel proportionally thicker if its construction and finish are different.

This is why the PO should connect GSM to the physical approval record rather than treating it as a standalone quality score. Keep the approved swatch, fabric base, construction, shade and hand description together. If the brand depends on a particular fold or pin behaviour, describe that function and compare a physical sample instead of assuming the GSM number will control it alone.

Define the Measurement Stage

For a knitted hijab fabric, “180 GSM” is incomplete until the parties agree when and how the fabric is measured. Greige fabric, dyed and finished fabric, a rested roll and a cut piece are not interchangeable stages. Finishing can alter width, relaxation and mass per unit area. A freshly handled knit can also behave differently from a fabric that has rested under the agreed inspection conditions.

Write the stage in plain language. For example, the PO might require “finished fabric after the agreed finishing route” and separately identify whether the sample must be rested before testing. The exact wording should match the factory's process and the buyer's inspection method. What matters is that the same stage is used for approval, production control and any dispute review.

ASTM D3776/D3776M-20 describes several options for measuring fabric mass per unit area, including a full piece, full-width sample and small swatch. Its published scope also explains that a small-swatches result may apply to the specimen and not necessarily to the lot from which it came. That distinction is important for a bulk PO: a laboratory result on one small piece is not automatically a lot-release result.

Make the Sampling Plan Specific

A sampling plan should identify the population being checked. Is the lot one dye lot, one production day, one shipment or a group of rolls with the same approval? Record the roll numbers or batch references where available. Then define where readings are taken: beginning, middle and end of a roll are more informative than one piece selected because it is easy to reach.

The number of readings should be agreed with the factory and inspection team rather than invented as a universal rule. The PO can require a documented spread of readings across the identified lot, with the average and individual results reported. If the average passes but one area falls outside the agreed band, the buyer needs to know whether the contract treats that as a hold, a recheck or an automatic failure.

GSM should also be read with usable width. A roll can meet the target weight while losing usable width through finishing or edge issues. That changes cutting yield and may change the number of hijabs obtained from the planned meterage. Shade continuity, visible defects and dimensional stability are separate controls, not substitutes for GSM testing.

A Practical Acceptance Table

Result against the PO	Recommended next step	Evidence to keep
Within target and tolerance	Release the lot to the next approved stage	Lot report, roll references and inspector sign-off
Average passes but an individual area is outside	Hold the affected roll or expand the check	Location map, extra readings and decision record
Average outside tolerance	Do not cut until buyer and factory agree a disposition	Report, retained sample comparison and written decision
GSM passes but width, shade or hand changes	Treat the other change as a separate non-conformity	Width, shade or hand evidence linked to the same lot
Method or measurement stage differs from the PO	Repeat using the agreed basis before deciding	Method used, stage, specimen details and revised result

This table is not a universal AQL rule. It is a framework for writing the disposition into the commercial agreement. The buyer and factory still need to agree the actual tolerance and sampling detail for the product.

Factory Perspective: What Prevents a GSM Dispute

From a mill's side, the most useful PO is not the one with the most technical words. It is the one that connects the target GSM to an approved sample and a clear release decision. Before knitting or dyeing starts, we need to know whether the buyer is controlling the finished fabric, the cut hijab or both. We also need to know whether the target applies to every colourway or whether a shade-specific approval record will be used.

A repeat programme becomes easier when the first approval file includes the fabric base, construction, target GSM, tolerance, usable width, shade standard, hand description and measurement stage. If the buyer changes yarn, stitch setting, finishing route or edge treatment, the old GSM approval should not be treated as automatic approval for the new development.

When a lot is close to the limit, the correct response is a documented review, not a silent adjustment to the report. Hold the material, identify the affected rolls, compare with the retained standard and agree whether the lot will be reworked, accepted by written deviation or replaced. This protects both sides from a later argument about which number was intended.

What Buyers Should Confirm Before Signing the PO

The target GSM is stated for the correct fabric base and construction.
The tolerance is written as an agreed range, not described as “around” a number.
The measurement stage is named and matches the approved sample.
The method, specimen basis and reporting units are agreed before inspection.
The lot definition includes dye-lot, roll or production references where available.
Sampling locations and the number of readings are documented.
Average results and individual readings will both be retained.
Usable width is checked separately from GSM.
Shade, hand, opacity, shrinkage and recovery are reviewed when relevant to the SKU.
An out-of-tolerance lot is held until the buyer and factory record a disposition.
Any deviation approval identifies the affected lot, quantity and sample revision.
The final report is attached to the shipment or release record before cutting or packing.

Frequently Asked Questions

What is a normal GSM tolerance for hijab fabric? There is no single tolerance that applies to every hijab fabric. Agree the band from the approved construction, intended use, finishing route and factory capability, then write it into the PO.

Is plus or minus 5% automatically acceptable? No. A percentage is only a contract term if both parties agree it for that product. It should not be presented as a universal textile rule or used to ignore width, opacity, hand or shrinkage changes.

Can a small swatch prove the bulk fabric meets the PO? It can describe the tested specimen, but it may not represent the full lot. Use a sampling plan that identifies the lot and locations, and keep the method consistent with the contract.

Should GSM be measured before or after washing? Use the stage that matches the commercial decision, and state it clearly. If post-wash behaviour matters, treat dimensional stability and post-wash weight as additional controls rather than silently replacing the finished-fabric basis.

What should happen if GSM passes but the hijab feels different? Hold the comparison and check hand, construction, finishing, relaxation and related records. GSM alone cannot explain every change in drape or surface feel.

Request a Matched Specification Review

If you are preparing a private-label hijab PO, send the approved swatch or reference, fabric base, target GSM, tolerance, finished dimensions, colourway and intended use through hijabsourcing.com/contact. The modal and jersey collections can be reviewed against the same specification structure, but the final acceptance band should be agreed for the selected construction rather than copied from another SKU.

For the difference between a basic fabric target and a repeat-order control record, see hijabsourcing.com/blog/hijab-fabric-reorder-control-shade-gsm-hand. For shipment release evidence, use hijabsourcing.com/blog/pre-shipment-hijab-qc-buyer-release-checklist. The earlier GSM guide at hijabsourcing.com/blog/how-to-choose-hijab-fabric-gsm explains the starting point; this article focuses on converting that choice into a PO and lot decision. For matched fabric behaviour, compare modal and jersey at hijabsourcing.com/blog/modal-vs-jersey-hijab-summer-buyer-comparison.

References

ASTM International. “ASTM D3776/D3776M-20: Standard Test Methods for Mass Per Unit Area (Weight) of Fabric.” https://www.astm.org/d3776_d3776m-20.html. Accessed 12 October 2026.

ASTM International. “ASTM D3776/D3776M Standard Test Methods for Mass Per Unit Area (Weight) of Fabric.” https://store.astm.org/d3776_d3776m-20.html. Accessed 12 October 2026.

Shanghai Garment. “How to Ensure Consistent Fabric Quality in Bulk Garment Orders.” https://shanghaigarment.com/how-to-ensure-consistent-fabric-quality-in-bulk-garment-orders/. Accessed 12 October 2026.

QiuYan Hijab. “GSM Tolerance and Fabric Inspection for Bulk Hijab Orders.” https://www.qiuyanhijab.com/blog/hijab-gsm-tolerance-fabric-inspection-guide. Accessed 12 October 2026.