Every defect claim starts with a word. A buyer who writes “there is a quality problem in the last shipment” gives the mill nothing to investigate, so the mill answers with a defense instead of a fix. However, a buyer who writes “roll 14, about 220 m from the head end, one broken pick across the face” hands both sides a fault that anyone can check on the same roll. In practice, that difference decides whether a claim survives.
Precise vocabulary also changes how a supplier treats you. Consequently, the conversation moves from argument to cause.
This three-part glossary covers fifteen fabric defects that recur in inspection reports on woven cotton and polyester. If you buy wax print, our arrival checklist for African wax fabric quality walks through the same checks roll by roll.
Why Defect Vocabulary Decides the Outcome
Contracts rarely list every fault that a running loom can produce. Instead, they point to an inspection standard and a few agreed limits, and they leave the naming to the people who open the rolls. Therefore, a shared textile defect terminology shapes the result before the inspection begins.
A vague complaint invites a vague answer, because the buyer names no fault to trace to a machine or a batch. A named defect, however, points to one process step and lets you compare the same fault across shipments.
The Fifteen Terms at a Glance
The final column settles most disputes: does the fault interfere with cutting and use, or does it only change the look of the cloth?
Weaving Defects: Where the Loom Leaves a Mark
Woven cloth forms where warp and weft interlace, and most weaving defects come from one of three sources: a yarn that breaks, a machine part that damages yarn, or uneven tension across the width.
A broken end leaves a gap running with the warp, often with a short loose tail. Pull the cloth gently across the gap and watch whether the opening widens; panels cut there produce rejects after washing.
A broken pick runs across the width instead, and a bright lamp behind the cloth makes the gap obvious. That gap opens along the weft once the cloth takes tension on a cutting table.
A float or missed pick puts a yarn on the surface instead of inside the structure. For example, small floats disappear into a seam, yet a long float catches on machinery and pulls.
Reed marks show as faint lines running with the warp at regular spacing, and damaged reed dents cause them. However, a mark that vanishes at normal viewing distance rarely matters.
Thick and thin places read denser or lighter than the body. Yarn count variation and uneven let-off tension both produce them.
A weft skew or bow runs on a diagonal or curves through the width. Fold the cloth along a weft line and check whether the fold meets both selvedges square. Garment makers care most about this one, because an out-of-square panel distorts every seam. In short, weft alignment decides the usable width of a roll.
Printing and Dyeing Defects: Where Color Moves
Printing and dyeing defects trace back to chemistry, application and drying. Consequently, verification means comparing the roll with the approved standard and looking at both faces.
Shade variation appears between rolls or across the width of one roll. Dyebath drift, uneven pickup and fiber blend differences push the shade away from your target, and folding the width into thirds exposes a side-center-side gradient. The lab dip, strike-off and bulk approval sequence fixes the reference shade before bulk runs, and the ISO color measurement committee publishes the comparison standards behind it.
Uneven dyeing, blotches and color spots sit between a shade problem and a stain. Patchy wetting, chemical spots in the bath and dirt on rollers all leave marks that read darker, lighter or different from the ground. When suspicion turns to dye chemistry, OEKO-TEX publishes the restricted substance limits on its official site.
Streakiness leaves continuous lines running with the length. A worn doctor blade or uneven application produces them, and the lines keep their lane from head end to tail. As a result, trace the line on a short strip across the width.
In addition, color bleeding and staining appears where color travels into a light ground, onto the back, or onto neighboring cloth in a stack. Excess dye left on the fiber and a weak washing-off step cause it, and wet stacking makes it worse. Our guide to reading a fabric lab test report explains which test answers which fault, the AATCC list of standard test methods shows the published colorfastness procedures, and ASTM International hosts wider textile methods on its standards portal.
Print misregistration, screen blockage and color drag form one family of printing defects. Screens drift out of alignment, a screen clogs and drops part of a motif, or the squeegee drags wet ink into a smear. Therefore, check the repeat at several points along the length.
Finishing and Storage Defects: Where a Good Roll Goes Wrong
The last stage of production, and the months that follow it, add faults that have nothing to do with weaving or dyeing. Heat, moisture and handling cause them.
A crease mark comes from folding or rope creasing while the cloth is hot or wet, and it shows as a sharp line that lingers after the cloth relaxes. However, many crease marks fade after a wash, so verify before you claim.
An oil stain arrives from lubricant, dirty rollers or condensation, and it reads as a dark, yellow or gray patch that does not wash out. A garment panel exposes it while a quilted panel hides it.
A hole can come from a needle, a sharp edge or rough handling. Either way, cut it out or claim it.
A poor selvedge shows as a wavy, curled, frayed or over-tight edge, and edge tension at the loom plus rough handling both cause it.
Moreover, storage belongs in this group. Damp floors, stacked rolls and long exposure to light all leave marks that resemble production faults. Therefore, we hold finished cloth in a 20,000 m² warehouse, and our bed sheet fabric programs rely on the same discipline.
Defect or Normal Characteristic? Where to Draw the Line
Not everything an inspector circles deserves the name defect. Slubs, neps and husk specks come from the fiber itself: a slub is a thick place in the yarn, a nep a small tangled knot of fibers, and husk specks fragments of the cotton seed.
The boundary depends on practical questions rather than on a feeling:
- Frequency. A scattered slub reads as character, while a cluster in one lane reads as a fault.
- Size and position. A slub inside a seam allowance rarely matters.
- Effect on the print. A speck that pushes ink aside leaves a white point in a dark ground.
- Effect on the product. A flawed face panel costs more than a hidden one.
- Wording of the spec. Above all, a slub beyond the limit your contract sets is a defect by definition.
In short, slight loom marks and faint reed lines pass on a dark ground and fail on white. Put the answer in writing before the order runs, because any unnamed characteristic becomes a negotiation on arrival.
Who Owns the Defect?
Agree the split in the contract, and inspect where risk changes hands: before loading, and again on arrival.
From Defect Name to Severity Grade
Once you can name a fault, you need to weigh it. Inspection systems sort findings into severity classes — commonly critical, major and minor — and that class drives the accept, reject or claim decision. A critical finding harms safety or makes the cloth unusable, a major finding changes appearance or interferes with cutting, and a minor finding sits inside the agreed tolerance.
In practice, the class does more work than the name. A hole in a pillow panel and a slub in the same panel belong to different classes of fabric defects. Our article on the claims and corrective action process explains how grading feeds the sampling logic behind an AQL inspection.
How to Describe a Defect So Your Claim Survives
Wording decides most claims, because a written description either points to one specific fault or invites a general denial.
Replace the example readings with your own measurements. In addition, add these details:
- Roll and batch identity. Quote the roll number, the batch number and the meter marking.
- Position and face. Give the distance from the head end and the nearest selvedge, and state which side you inspected.
- Size, count and repeat. Give the extent, the instance count, and the interval if the fault returns.
- Direction. Note whether the fault runs with the warp, with the weft, or in neither direction.
- Light. Record the light you used, because a fault visible under an inspection lamp may vanish in a showroom.
Documentation Practice: Build the Evidence File Early
Evidence loses value once a roll leaves the floor, so collect it while the cloth lies open.
- Record video as you open the roll, keeping the roll label, the meter marking and the fault in one frame.
- Photograph twice: one wide shot of the whole roll, one close shot with a tape for scale.
- Cut a sealed sample across the full width, then write the roll number, the date and the fault name on the bag.
- Label the fault with the standard fabric inspection terms in English and Chinese, because a bilingual note removes the translation debate.
- Finally, file everything with the shipment record, next to the packing list and the inspection report.
How Weifang Tianhong Handles Defect Feedback
Defect feedback reaches our quality team through your sales contact. Because we run texturing, weaving, printing and dyeing, cutting and sewing under one roof, the review happens with the machine operators. Founded in 2002 in Weifang, Shandong, we run 600 water-jet and 150 air-jet looms and 11 printing and dyeing lines.
Our in-house physical testing laboratory answers the measurement questions, and retention samples by batch let us re-test the same lot you received. Meanwhile, a factory-side review traces the fault to its production stage and records the corrective action.
Where a program carries strict expectations, we schedule an in-line inspection before shipment, so a shading drift shows up while the cloth sits on the machine. Review our setup on the About page, browse our wax print fabric range, or read more guides on our news archive.
FAQ
Which fabric defects show up most often in inspection reports?
Broken ends, broken picks, weft skew, shade variation and crease marks account for most fabric defects on woven cotton and polyester. However, print programs meet printing defects such as misregistration more often.
What separates a defect from a normal fabric characteristic?
Frequency, size, position and effect on the finished product separate the two. Above all, the wording of your specification decides: a scattered slub usually passes, while a cluster in one lane does not.
How should I write a defect description?
Give the roll number, the position from the head end, the face you inspected and the size of the fault. Add the light you used and the evidence you kept.
Can a mill repair a defect instead of paying a claim?
Sometimes. A flagged piece inside a seam allowance, a trimmed selvedge or a shortened roll can solve a problem without a credit. Therefore, ask for the cutting plan before you insist on a full claim.
Why do garment makers care so much about weft skew?
Because skew travels through the whole cut. Consequently, check skew along the roll, not only at the head end.
How does a defect name connect to an AQL inspection?
The name identifies the fault, and the inspection standard grades it as critical, major or minor before anyone compares the count with the agreed level. Therefore, a named fault moves through review faster.
Final Thoughts
A defect glossary does more than help you fill in a form. It gives you a shared language with the mill and protects your margin when a container arrives with a problem. In short, name the fault, place it on the roll, keep the evidence, and grade it against the standard you agreed.
Finally, start with the fifteen terms above and write the limits into the specification before the next order runs. Moreover, review what you find across shipments, because a defect that repeats is a process question rather than a shipping accident.
Need a bilingual defect list for your inspection team? Contact our trade team and ask for our English–Chinese defect terminology sheet, or book an in-line inspection before your next shipment leaves. Free A4 samples reach you in one to three days, MOQ starts at 60 yards, and regular cloth runs in seven to ten days.