The Four-Point System is the globally recognized standard for fabric quality inspection. Penalty points ranging from 1 to 4 are assigned based on the length of the defect (1 point for defects under 3 inches; 4 points for those exceeding 9 inches). Generally, a fabric is considered "First Quality" or acceptable if the total score is 40 points or less per 100 square yards.

Core Definition & Scoring Rules

Defect Length Grading

At the inspection station, illumination from D65 standard artificial daylight tubes must remain constant between 1075 and 1200 lux. The inspector stands 3 feet (approx. 0.91 meters) from the fabric surface, with the machine speed maintained at 15 to 20 yards per minute. This low speed ensures the human eye can catch individual yarn defects as small as 0.5 mm in diameter.

The core logic of the Four-Point System is based on defect length. Any defect up to 3 inches (7.6 cm) is recorded as 1 point. This typically includes minor neps, thick warps under 5 cm, or visible chalk marks. On a 58-inch wide fabric, even a single 0.5 cm broken pick will be penalized if it creates a visible protrusion.

Defects longer than 3 inches but not exceeding 6 inches (15.2 cm) are assigned 2 points. These often manifest as localized warp skips, single oil-stained weft yarns, or slight tension marks from uneven mechanical pull. For 100% cotton poplin, if a 2-point defect repeats more than three times at the same warp position, the inspector must flag it as a "repetitive defect" with specific starting coordinates.

• Broken Warp/Weft: A single break between 3 and 6 inches counts as 2 points.

• Oil/Stains: Chemical contamination between 1 and 3 inches in diameter counts as 2 points.

• Slubs/Neps: Foreign matter protruding from the fabric surface between 7.6 and 15.2 cm counts as 2 points.

• Localized Skips: Gaps caused by weaving abnormalities between 2 and 4 inches count as 2 points.

If a defect exceeds 6 inches but is no longer than 9 inches (22.9 cm), it is assigned 3 points. Defects of this length can span half a garment panel during cutting, leading to structural scrap. In 150–200 GSM knit inspections, 3-point defects are often accompanied by local changes in fabric density; inspectors must check if these cause physical deformation exceeding 3%.

Any single defect exceeding 9 inches (22.9 cm) receives the maximum 4 points. This category includes full-width weft bars, continuous broken warps, or severe shading streaks from dye residue. In a standard 100-yard roll, any 4-point defect appearing for 3 or more consecutive yards results in an automatic rejection. A 4-point defect usually signals an irreversible mechanical failure during production.

• Full-Width Bars: Weft abnormalities spanning the entire effective width count as 4 points per yard.

• Major Holes: Physical openings larger than 1 inch in diameter count as 4 points.

• Water/Mildew Stains: Large discolorations or those extending over 9 inches count as 4 points per yard.

• Torn Selvedges: Edge tears encroaching more than 1 inch into the effective width count as 4 points per yard.

• Print Misregistration: Continuous registration errors exceeding 0.02 inches count as 4 points per yard.

Hole scoring does not follow length logic alone; it is based on structural damage. Holes 1 inch or smaller in diameter result in a 2-point penalty. Holes larger than 1 inch are considered "fatal" and are penalized with 4 points regardless of location. This prevents small punctures from expanding into massive tears when subjected to mechanical friction and water temperatures of 40–60°C during garment washing.

Effective (cuttable) width is measured to the nearest 0.125 inches. For standard 58/59-inch specifications, a 1-inch selvedge on each side is excluded from the inspection zone. If a defect touches the 0.1-inch boundary of the effective width, it must be penalized for its full length. If the actual total width is more than 0.5 inches below the contract specification, the batch is rejected for failing to meet marker-making requirements, even if it is defect-free.

• Effective Width: For 58-inch specs, only the inner 56 inches are evaluated for points.

• Edge Control: Defects within 1.5 inches of the selvedge must be recorded.

• Length Verification: Actual lengths shorter than the label by more than 1% must be reported.

• Splices/Joints: Every joint within a roll is treated as a continuous defect and penalized 4 points.

The formula for calculating points per 100 square yards is: (Total Points x 3600) / (Actual Length in Yards x Actual Fabric Width in Inches). The constant 3,600 converts square inches to square yards, allowing for comparisons across different fabric widths. For example, a roll 80 yards long and 56 inches wide with 30 total points results in a final score of 19.28. For top-tier international brands, 20 to 25 points is often the internal acceptance threshold.

The maximum penalty for any single linear yard is capped at 4 points. Even if ten 1-point defects occur within a single yard, the score for that yard remains 4. This prevents a cluster of minor defects from disproportionately inflating the total score, keeping the data focused on fabric utilization. Inspectors must provide written descriptions for such "saturated" yards.

The first and last 3 yards of every roll must undergo a 100% full-width scan. Paper tubes must have an inner diameter of 2.5 to 3 inches to prevent excessive curling stress on the inner layers. For finished fabrics, bow and skew must be kept within 2% of the effective width. If the skew exceeds this, that yard is penalized 4 points.

• Color Evaluation: If shading is below Grade 4 on the Greyscale, 4 points are assigned per yard.

• Persistent Stains: Industrial grease that cannot be removed with standard solvents counts as 4 points.

• Weight Deviation: Rejection occurs if the measured GSM deviates by more than +/- 5% from specifications.

• Winding Tension: Must be maintained between 1.5 and 2.0 PSI to prevent pressure marks on the bottom layers.

Specific Rules for Holes

At the inspection table, D65 lighting must be stable between 1100 and 1200 lux. The inspector stands 0.91 meters from the fabric, with the machine speed set to 18 yards per minute. This specific environment helps the eye catch fiber breaks as small as 0.5 mm.

Physical holes are high-weight defects and often serve as a basis for rejection. Any hole 1 inch (25.4 mm) or smaller is penalized 2 points, regardless of frayed edges.

Holes exceeding 1 inch are penalized with the maximum 4 points. At this size, the fabric structure is compromised and cannot regain its tensile strength through standard repairs. For lightweight silk (120 g/m²), a hole over 25.4 mm usually involves severe yarn slippage, rendering that section unusable.

High-precision stainless steel digital calipers are used for on-site measurement. For irregular tears, the inspector uses the longest diameter. If hole edges show signs of singeing or chemical corrosion, they must be noted as "Chemical Holes." These account for roughly 3.5% of defects and are usually caused by incomplete neutralization of strong alkalis during dyeing and finishing.

In knit fabrics, a "run" caused by a broken end that extends over 1 inch is penalized 4 points. The looped structure of knits causes small holes to ladder rapidly under stress; data shows that a 2 mm pinhole in knits expands five times faster than in woven fabrics.

The first 5 yards of a roll are prone to holes caused by packaging pressure. Inspectors must scan the first and last 5 yards thoroughly. If a 100-yard roll contains more than three 4-point penalties due to holes, the final score will likely approach the 40-point failure threshold.

The calculation formula includes these mandatory penalties. For instance, two 1.5-inch holes on a 56-inch wide fabric contribute 8 points. If the final score reaches 38.5 points, even a minor shading issue will cause the batch to fail re-inspection.

Tests show that a fabric with a 2-point hole will see that hole expand by over 45% after five standard home washes. This instability is why the standard is so strict on holes. In garment factories, any marked 4-point hole must be avoided during layout, increasing production loss by 2.5% to 5%.

For functional coated fabrics, holes are often hidden beneath the coating. Inspectors use back-lit inspection boards to spot abnormal light penetration. If a cavity is found within the coating with a surface break between 0.5 and 1 inch, it is penalized 2 points. These hidden defects require double the inspection time.

If paper tube pressure exceeds 2.0 PSI, the inner layers may develop burst-type holes upon impact. Industry standards require tube walls to be at least 5 mm thick to ensure sufficient support.

Judgment Standards

For standard 58-to-60-inch finished goods, the international passing limit is 40 points. Even a score of 40.1 must be judged as a "Fail"; there is no room for ambiguity.

The formula: (Total Points x 3600) / (Actual Yards x Effective Width in Inches). A 120-yard roll with a 57-inch width and 70 penalty points results in a score of 36.8, which is within the safe zone.

Top-tier high-count worsted wool or silk fabrics often use internal standards of 15 to 20 points. These high-value goods have zero tolerance for minor flaws; if the score hits 22, the system triggers a red alert. Inspectors then manually map the coordinates of every 1-point defect so garment factories can navigate around them.

• Grade A: Score $\le$ 40 points, with no continuous or structural damage.

• Grade B: Score 41–60 points. These are considered "seconds" and usually involve a trade discount.

• Rejected: Score > 60 points, or failure of a "one-strike" red line (weight, width, or color).

Continuous defects are a critical "red line." If the same defect (such as a warp-way oil stain or tension mark) extends for more than 3 yards, the roll is rejected regardless of its average score. This prevents massive scrap rates during garment cutting.

Regarding length accuracy, the industry allows a +/- 1% margin. If a roll labeled 100 yards measures only 98.5 yards, the 1.5% shortage is considered a discrepancy. Trade settlements are based on actual measurements, and shortages exceeding the allowance usually trigger a full re-measure of the entire shipment.

Fabric weight (GSM) has "one-strike" rejection power. If the actual weight deviates from the spec by more than +/- 5%, the batch is rejected even if the four-point score is zero. A 200 g/m² knit fabric measuring 185 g/m² will feel thin and fail dimensional stability tests after washing.

Effective width is measured at the start, middle, and end of the roll. If it is 0.5 inches narrower than the contract, markers will not fit. Such cases are labeled "Narrow Width," and compensation is calculated based on the affected area to balance material usage for downstream production.

• Skew Control: For yarn-dyed or checked fabrics, bow/skew must not exceed 2%–3% of the effective width.

• Weight Consistency: Roll-to-roll weight variation within a batch must be within 3%.

• Side-to-Side Shading: Must not be below Grade 4 on the Greyscale to ensure no visible color difference between panels.

• Lot-to-Lot Shading: Color deviation between different dye lots must be Grade 4 or higher.

Packaging tubes must have a 5 mm wall thickness and a 3-inch outer diameter. Deformed tubes cause permanent creases. PE transparent film must be at least 0.08 mm thick to prevent moisture ingress during sea freight. Any edge stains caused by damaged packaging are documented in the report.

For functional coated fabrics, if the peel strength is below 1.5 lbs/inch or if coating cavities exceed 1 inch, a 4-point penalty is assigned. These reports must highlight physical performance risks to prevent delamination during wear or washing.

The rigor of the standard is reflected in the granularity of the data. Every "Failed" roll must list the exact yardage coordinates of all 4-point defects. If a 100-yard roll has more than five separate yards penalized with 4 points, buyers may question the production stability even if the total score is around 35.

Moisture regain is a hidden metric. At 20°C and 65% relative humidity, the standard regain for cotton is 8.5%. If actual moisture exceeds 10%, it leads to inflated weights and mold risks. Reports must include ambient temperature and humidity to ensure the traceability of physical metrics.

• Re-inspection Mechanism: After initial inspection, 10% of the rolls (or per AQL 2.5) are selected for blind testing.

• Tolerance: The difference in scores between initial and re-inspection must not exceed +/- 5%.

• Strict Prohibitions: Any discovery of severe odors, banned Azo dyes, or mold spots results in the immediate rejection of the entire shipment.

Calculation & Grading

Grading Classification

In finished fabric inspection, the grading score directly determines the commercial value of an entire shipment. The industry benchmark is based on a fabric roll measuring 100 yards in length and 60 inches in width. The final score is calculated using the formula: (Total Points × 3600) ÷ (Actual Yardage × Usable Width). In most cases, 40 points serves as the dividing line between first-quality and second-quality fabric. For premium orders such as lingerie fabrics or high-count worsted textiles, buyers often require scores below 20 points, or even under 15.

Defect deductions follow a strict physical size standard. Defects under 3 inches receive 1 point, 3–6 inches receive 2 points, 6–9 inches receive 3 points, and defects exceeding 9 inches receive 4 points. Regardless of how many defects appear within one yard (0.9144 meters), the maximum deduction for that section is capped at 4 points. This means that even if ten small snags appear within a single yard, only 4 points are recorded, helping preserve fabric utilization efficiency during cutting.

Physical Specification Evaluation Details:

• Width Measurement: Each roll must be measured at the beginning, middle, and end. Every 1/2-inch shortage from the contracted usable width results in a 1-point deduction.
• Fabric Weight Tolerance: Samples are cut using a 100 cm² GSM cutter. For a 200 GSM fabric, any reading below 190 GSM or above 210 GSM is considered non-compliant.
• Length Verification: If the actual measured length is shorter than the labeled length by more than 1% or 2 yards, the entire roll is classified as defective.
• Warp & Weft Skew: Knitted fabrics with skew exceeding 5% of the fabric width may cause garment twisting and must be downgraded to second quality.
• Shrinkage Control: Fabrics must undergo continuous washing at 60°C for 90 minutes, with warp and weft shrinkage maintained within ±3%.

When assigning grades, continuous defects carry veto authority. Even if a roll scores only 10 points overall, any continuous warp-direction defect longer than 3 yards automatically downgrades the fabric to second quality. Shade variation is evaluated using the AATCC Gray Scale standard. Side-to-center and end-to-end shade differences must achieve at least Grade 4. If obvious left-center-right color variation exists within a single roll, the fabric will fail inspection regardless of its point score.

Appearance & Structural Evaluation Criteria:

• Holes: Any hole, insect damage, or physical tear automatically receives 4 points regardless of size.
• Broken Picks or Warp Breaks: Defects extending beyond one-third of the fabric width are considered severe structural defects.
• Machine Stop Marks: Horizontal stop marks caused by loom restarting receive 4 points if visually obvious and longer than 10 cm.
• Oil & Stain Contamination: Oil stains or rust spots larger than 15 mm automatically receive 4 points, regardless of washability.
• Needle Hole Exposure: For knitted fabrics, exposed needle holes extending more than 0.5 inches into the usable width are deducted at 1 point per yard.

Inspection lighting must be maintained between 1000 and 1200 lux, typically using D65 standard artificial daylight. Fabric inspection machine speed should remain between 15 and 20 yards per minute. Excessive speed can increase missed defect rates by more than 20%. Inspectors should evaluate the fabric from approximately 1 meter away. Minor slubs or yarn unevenness that are not visible under normal lighting conditions are generally not deducted to maintain grading objectivity.

Roll packaging quality is also a critical part of grading. Fabric rolls must be wound onto reinforced paper tubes with a wall thickness of 5 mm and an inner diameter of 3 inches. Winding tension should be moderate, with a hand-pressed indentation depth of approximately 1.5 cm. Excessive tension can create pressure marks or glazing streaks, while loose winding may cause roll collapse during transportation. Both situations can result in rejection of the entire roll.

Packaging & Labeling Inspection Standards:

• Packaging Material: Transparent polyethylene bags with a minimum thickness of 0.08 mm must be used. Sulfur-containing packaging paper is strictly prohibited.
• Label Information: Internal and external labels must include contract number, dye lot number, fabric type, actual yardage, usable width, and inspection date.
• Splice Restrictions: No splices are allowed in 100-yard rolls. For 500-yard jumbo rolls, a maximum of two splices is permitted, and each must be marked with a red edge indicator.
• Roll-End Allowance: At least 0.5 yard of extra fabric must remain at the roll end for protection against handling damage.
• Sealing Requirements: Plastic bags must be heat-sealed or wrapped with industrial tape at least three times to prevent moisture penetration during shipping.

For printed fabrics, registration deviation exceeding 1 mm can create visible ghosting along pattern edges, which is classified as a major defect under the four-point system. Functional fabrics such as waterproof or flame-retardant textiles also require random on-site water drop testing on three sampled rolls during finished inspection. If water penetrates within 30 seconds, the entire batch is considered functionally defective even if no visual defects are present.

Final acceptance is based on the average score of the entire shipment. If more than 10% of inspected rolls exceed 40 points, or if the shipment average exceeds 30 points, buyers typically request full rejection or price reductions. All original inspection data must be entered into the ERP system and retained for approximately 18 months for traceability in the event of downstream garment quality issues.

Grading Classification

In finished fabric inspection, grading is the primary criterion determining whether a fabric roll can proceed to the cutting department. For example, a fabric roll measuring 120 yards in length with a usable width of 60 inches covers a total area of 200 square yards. If the total accumulated deductions equal 30 points, the calculation is:

(30 × 3600) ÷ (120 × 60) = 15 points

This score is well below the industry-standard 40-point threshold and qualifies as first-quality fabric.

Defect deductions are strictly tied to the physical size of the defect. Defects within 3 inches receive 1 point, 3–6 inches receive 2 points, 6–9 inches receive 3 points, and defects longer than 9 inches or holes of any size receive 4 points. Regardless of the number of defects within one yard (0.9144 meters), the total deduction is capped at 4 points. This rule prevents excessive scoring caused by concentrated minor defects within a limited area.

Physical specification deviations also affect the final grade. Width measurements must be taken at the beginning, middle, and end of each roll. For a 150 cm specification order, an actual usable width of only 147 cm may prevent efficient marker placement during garment cutting. In the grading system, every 1/4-inch shortage from the required usable width may result in direct rejection before point conversion even begins.

Fabric weight verification uses a 100 cm² circular GSM cutter. For a 250 GSM fabric, the acceptable tolerance range is ±3%, or 242.5–257.5 GSM. If the actual reading falls to 235 GSM, it indicates a 6% density reduction, which can cause garments to feel thinner and fail weight specifications. Such physical deviations must be separately documented in the inspection report as an additional grading condition.

Continuous defects carry automatic rejection authority in the grading process. Even if the converted score is only 15 points, any continuous warp streak or printing shadow extending beyond 3 yards automatically classifies the roll as second quality. In garment marker layouts, long defects can pass through multiple pattern pieces and result in large-scale production losses. Inspectors must stop the machine immediately when such defects are detected to verify whether they are repetitive.

Shade variation is evaluated using the AATCC Gray Scale. Side-to-center and end-to-end shade differences must achieve at least Grade 4. Under D65 standard lighting at 1200 lux, any visual variation below Grade 4 — such as darker edges and lighter centers — may cause visible shade mismatch at garment seams. One 10-inch dye lot swatch must be cut every 1000 yards and attached to the shade card for batch consistency verification.

Finished roll specifications are also part of the grading criteria. Fabric rolls must be wound onto reinforced paper tubes with a wall thickness of 5 mm and an inner diameter of 3 inches. Winding tension should remain moderate, with approximately 10 mm of indentation when pressed by hand. Excessive tension may permanently stretch spandex fabrics and destabilize shrinkage rates, while loose winding may create collapsed roll marks during transport and interfere with automatic spreading machine sensors.

Moisture content is another hidden factor affecting long-term quality. Standard moisture regain is 8.5% for cotton and 0.4% for polyester. Moisture levels are measured using an inductive moisture meter. If cotton fabric exceeds 11% moisture content, mold and odor can easily develop inside sealed packaging. When moisture exceeds the limit, the entire shipment must undergo re-drying and be re-inspected after 48 hours to confirm safe moisture levels.

Packaging materials must have a thickness of at least 0.08 mm to prevent damage during transportation. Bag openings must be heat-sealed, and labels must clearly display the contract number, dye lot number, fabric type, actual yardage, and usable width. No splices are allowed in standard 100-yard rolls. Jumbo 500-yard rolls may contain one or two splices, but these must be clearly marked with red sensor strips along the edge to prevent damage to automatic cutting blades.

Inspection machine speed must remain between 15 and 20 yards per minute. Speeds above 25 yards per minute reduce inspectors’ ability to detect fine broken picks by approximately 20%. The inspection table angle should be maintained between 45° and 60°, with dual high-efficiency fluorescent lamps installed above to ensure even illumination across the 1.8-meter-wide fabric surface. Inspectors should observe from a distance of about 1 meter. Minor slubs that are not noticeable under standard viewing conditions are typically not scored.

In physical performance evaluation, skew is a mandatory inspection item. If the skew of knitted fabric exceeds 5% of the fabric width, garments may develop severe twisting after washing. Skew is measured using a right-angle ruler to determine weft deviation. For a 1.5-meter-wide fabric roll, skew exceeding 7.5 cm is considered unacceptable. Such fabric must be returned for re-setting and cannot proceed to cutting.

For printed fabrics, registration deviation exceeding 1.5 mm causes visible ghosting and is classified as a major finished-fabric defect. Functional fabrics such as water-repellent textiles require water drop testing on 5% of sampled rolls. If water penetrates within 30 seconds, the entire batch is classified as functionally defective even if visual scores remain below 10 points.

Quality Acceptance Standards

Within a standard area of 100 yards in length and 60 inches in width, the final score is calculated using:

(Points × 3600) ÷ (Yardage × Fabric Width in Inches)

If the result is below 40 points and no continuous defects are present, the fabric is classified as Grade A. For premium worsted or silk fabrics, the acceptance threshold is typically reduced to 15–20 points.

Defect deductions strictly correspond to physical defect size. Defects within 3 inches receive 1 point, 3–6 inches receive 2 points, 6–9 inches receive 3 points, and defects over 9 inches or holes of any size automatically receive 4 points. Regardless of the number of defects within one yard (0.9144 meters), the maximum deduction remains capped at 4 points, preventing irrationally high scores caused by concentrated local defects.

Continuous defects hold veto authority in finished fabric grading. Regardless of the overall point score, any warp streak, shadow mark, or shade bar extending beyond 3 yards (2.74 meters) automatically downgrades the roll. In garment marker layouts, long defects can pass through multiple pattern pieces, creating significantly greater production risk than scattered point defects.

Usable width must be measured at the beginning, middle, and end of the roll. For a 150 cm order specification, an actual width below 148.5 cm (approximately 1% shortage) is considered unacceptable. Width shortages can prevent automated cutting markers from fitting correctly. If the usable width is short by more than 1/2 inch, the roll may be rejected before point conversion due to physical specification non-compliance.

Fabric weight verification uses a 100 cm² circular GSM cutter. For a 250 GSM fabric, tolerance must remain within ±3%, or 242.5–257.5 GSM. Readings below 235 GSM indicate a 6% density reduction, which can weaken tear strength and produce a thinner hand feel. Such physical performance deviations must be separately recorded in inspection reports as grading restrictions.

Shade variation is quantified using the AATCC Gray Scale. Side-to-center and end-to-end variation must reach at least Grade 4. Under D65 lighting at 1200 lux, any variation below Grade 4 — such as darker edges and lighter centers — can cause visible seam mismatching. One 10-inch dye lot sample must be cut every 1000 yards and compared against approved standards to ensure dye lot consistency remains within Grade 4–5.

Skew is a critical physical acceptance criterion in finished fabric inspection. If skew in knitted fabric exceeds 5% of the fabric width, garments may develop severe twisting after washing. Measurement requires a right-angle ruler to determine weft deviation. For a 1.5-meter-wide roll, skew exceeding 7.5 cm is considered unacceptable. Such fabric must be returned for corrective setting and must not proceed to subsequent production stages.

Roll quality directly affects spreading machine efficiency. Fabric rolls must be wound onto reinforced paper tubes with a wall thickness of 5 mm and an inner diameter of 3 inches. Winding tension should remain moderate, with approximately 10 mm of indentation when pressed by hand. Excessive tension can permanently stretch spandex fabrics and destabilize shrinkage performance, while loose winding may cause roll collapse marks that interfere with spreading machine sensors.

Moisture content is a key indicator of storage safety. Standard moisture regain is 8.5% for cotton and 0.4% for polyester. Inductive moisture meters are used for testing. If cotton fabric exceeds 11% moisture content, mold growth can easily occur inside sealed packaging. Once moisture exceeds the limit, the shipment must be re-dried and re-inspected after 48 hours before packaging approval can proceed.

Packaging materials must exceed 0.08 mm in thickness, and bag openings must be heat-sealed. Labels must clearly indicate contract number, dye lot number, actual yardage, and usable width. No splices are allowed in 100-yard fixed-length rolls. Jumbo 500-yard rolls may contain one or two splices, but each must be marked with red sensor tape along the fabric edge to prevent damage to automatic cutting blades.

Inspection machine speed must remain between 15 and 20 yards per minute. Speeds above 25 yards per minute reduce inspectors’ ability to detect fine broken picks by approximately 20%. The inspection table angle should be maintained between 45° and 60°, with dual high-efficiency fluorescent lamps installed overhead to ensure even lighting across the 1.8-meter-wide fabric surface. Inspectors should observe from approximately 1 meter away, and minor slubs not visible under standard viewing conditions are generally not scored.

Industry Acceptance Standards

The Universal 40-Point Threshold

Under ASTM D5430, a score of no more than 40 points per 100 square yards is the industry-standard threshold for first-quality fabric. This benchmark is based on a typical garment marker loss rate of 5% to 7% during cutting. Once the score exceeds 40 points, it becomes significantly harder for garment factories to avoid defects during marker placement, reducing fabric utilization below 85% and directly increasing production costs.

Inspectors measure finished fabric rolls using a steel tape aligned with the fabric edge. Defects up to 3 inches are assigned 1 point; defects over 3 inches but no more than 6 inches receive 2 points; defects between 6 and 9 inches receive 3 points; and any defect longer than 9 inches automatically receives 4 points. The maximum accumulated deduction within one linear yard is capped at 4 points.

Holes are treated as destructive defects under a strict grading logic. Whether the hole measures 0.1 inch or 1 inch in diameter, even a barely visible pinhole must still be recorded as 4 points. Structural defects such as broken warp ends, broken picks, or thick warp yarns also reach the maximum 4-point deduction once the defect length exceeds 9 inches.

• 1 Point: Localized defects up to 3 inches, such as isolated skipped yarns or tiny oil spots.
• 2 Points: Defects between 3 and 6 inches, such as short weft bars.
• 3 Points: Defects between 6 and 9 inches, including obvious warp scratches or shade bars.
• 4 Points: Defects longer than 9 inches, or any holes, yarn pulls, or tears regardless of size.

Raw inspection scores must be converted into points per 100 square yards using the following formula:

Points per 100 sq yd = (Total Points × 3600) ÷ (Inspected Yardage × Fabric Width in Inches)

For example, a fabric roll measuring 80 yards long and 58 inches wide with a total deduction of 15 points would produce a final score of 11.64 points. This calculation method eliminates bias caused by differences in fabric width.

Wider fabrics inherently allow greater flexibility than narrow fabrics under the same point score. If two fabrics both score 39 points, the wider fabric typically provides approximately 12% more cutting flexibility during marker planning. This mathematical adjustment ensures fabrics of different widths can be evaluated fairly within the same quality system.

For premium fabrics such as 100s/2 worsted poplin, buyer agreements often tighten the acceptance limit to 20 or 25 points. This stricter requirement reflects the high visual standards expected for shirt collars and front plackets. In contrast, heavy woolen fabrics above 350 GSM are commonly accepted at higher limits of 50–55 points.

Bulk acceptance follows a dual-evaluation system. Under MIL-STD-105E sampling rules, a shipment totaling 10,000 yards requires a 10% inspection rate, meaning at least 1,000 yards must undergo full-width inspection. If any sampled roll exceeds 40 points, or if the average score across the sampled batch exceeds 28–32 points, the entire shipment may be rejected.

• Single-Roll Limit: No individual roll may exceed 40 converted points.
• Batch Average: Overall shipment averages should remain below 28 points to absorb quality fluctuations.
• Continuous Defects: Repeated defects extending more than 3 yards in the length direction automatically disqualify the roll.
• Full-Width Defects: Any defect running across the entire width receives an automatic 4-point deduction regardless of length.

Shade variation is also quantified within the acceptance system. Under D65 lighting conditions, roll-to-roll shade variation must achieve Gray Scale Grade 4 or higher. If the result falls to Grade 3–4, the fabric may still pass structurally, but mandatory shade segregation by dye lot is required before cutting. Shade consistency between the beginning, middle, and end of each roll must remain within Grade 4–5 to prevent visible shading in finished garments.

Physical performance standards work alongside the four-point system. Shrinkage must remain within ±3% in both warp and weft directions, while skew must not exceed 2% of the fabric width. A roll scoring only 10 points under the four-point system may still fail if skew reaches 4%. On a 60-inch-wide fabric, this represents a 2.4-inch distortion that can cause severe twisting after cutting.

Finished roll length accuracy is another critical audit item. The difference between actual measured length and labeled length must remain within ±1%, and the total shipment length must meet or exceed the contractual quantity. Inspectors monitor tension device pressure during inspection to prevent artificially inflated yardage caused by stretched fabric.

For complex jacquard or high-density stretch fabrics, certain process-related defects may be conditionally accepted, but such exemptions must be confirmed in writing before inspection. Even with exemptions, acceptance limits are rarely relaxed beyond 50 points. In many European and American retail supply chains, shipments scoring above 60 points are automatically blocked from warehouse intake regardless of any supplier compensation agreements.

• Skew Tolerance: Woven fabrics ≤2.0%; knitted fabrics ≤3.0%.
• Weight Tolerance: GSM variation must remain within ±5% of the approved standard.
• Usable Width Compliance: Actual usable width must meet or exceed the minimum cutting width specified in the order.

Bulk Evaluation Logic

Bulk evaluation systems are built on statistical probability models and generally follow MIL-STD-105E sampling plans. For a shipment totaling 20,000 yards, the inspection ratio is typically set at 10%, requiring inspection of at least 2,000 yards. If the shipment consists of 300 rolls, inspectors randomly select 30 rolls using statistical sampling methods for full-length inspection. This approach helps capture production variation across the entire manufacturing process rather than relying on limited inventory data.

Once the 30 sampled rolls are scored, the system immediately calculates the batch average. Even if 29 out of 30 rolls score 35 points — technically below the 40-point threshold — an average score of 35 still classifies the shipment as high risk. Under strict industry standards, first-quality bulk shipments are generally expected to maintain average scores between 25 and 28 points. Every additional point above this range increases garment marker waste by approximately 0.8%.

If any individual roll exceeds 40 points, it must be labeled as second quality. If more than 15% of sampled rolls fail inspection, the entire shipment requires full re-inspection and re-sorting even if the batch average technically passes. This dual-layer screening system ensures every roll entering production maintains stable industrial processing quality and prevents uneven quality distribution from causing large-scale garment defects.

For orders containing multiple colorways, the sampling ratio must reflect the production proportion of each shade. If blue represents 60% of the order and black represents 40%, then 18 blue rolls and 12 black rolls must be included in a 30-roll sample. GSM variation between colorways must not exceed 5%. For example, if a nominal 200 GSM fabric measures 185 GSM in black and 210 GSM in blue, the resulting inconsistency will create obvious differences in garment thickness and hand feel.

Shade management during bulk inspection is highly>DE 1.0, while side-to-center variation within the same roll must stay below DE 0.8. For light-colored fabrics, any Gray Scale result below Grade 4 can lead to rejection of the entire shipment even if the four-point inspection score is zero.

Finished roll packaging must accurately reflect the physical measurement data. During inspection, meter counter readings are continuously cross-checked against factory labels. If a roll labeled as 100.5 yards measures only 99.2 yards, the shortage rate reaches 1.3%, exceeding the allowed ±1% tolerance. If more than 10% of sampled rolls are short in length, the shipment settlement quantity is reduced based on the measured average.

Weft distortion and skew measurements determine stripe and plaid alignment accuracy. For a 60-inch-wide fabric, maximum allowable distortion must not exceed 1.8 inches. Inspectors use T-squares to establish vertical reference lines and measure the maximum weft deviation. Once distortion exceeds the 3% threshold, garment panels may rotate severely after washing, causing zipper waviness or side seams shifting toward the front.

Surface cleanliness and coating integrity must also be quantified. For water-repellent fabrics, inspectors conduct spray testing with a minimum requirement of ISO Grade 4. If three consecutive rolls in a 10,000-yard shipment score below Grade 3, it indicates uneven chemical application during finishing. Even with zero four-point deductions, the shipment is still considered functionally defective.

Defect Point Deduction Standards

Under ASTM D5430, inspectors use steel rulers with 0.5 mm precision for defect measurement. Defects within 3 inches receive 1 point. This category typically includes cotton neps smaller than 2 mm or tiny impurities. Although these defects do not significantly affect structural strength, more than five occurrences per 10 yards on white fabric can still impact visual quality.

Defects between 3 and 6 inches receive 2 points, while defects between 6 and 9 inches receive 3 points. Inspection table lighting must remain stable at 1200 lux to ensure warp scratches measuring 150 mm cannot escape detection. Two-point and three-point defects are often direct indicators of loom operating conditions and are associated with approximately 2.1% additional cutting waste.

Any defect longer than 9 inches or any hole automatically receives 4 points. Whether it is a tiny 0.05-inch pinhole or a major tear, once the fabric structure is penetrated, the inspection record immediately reflects 4 points. On a 60-inch-wide fabric, a single 250 mm dark stain can render the affected section unusable, leaving no room for grading compromise.

Within a single yard (36 inches), the maximum accumulated deduction is capped at 4 points. If four separate 1-point defects appear within one yard, the total remains 4 points. Even if ten separate 1-point defects are present, the recorded result is still capped at 4 points. This limitation is designed to evaluate the actual usable value of that fabric section. Once the maximum is reached, the yard is effectively considered unsuitable for garment cutting.

Machine stop marks or shade bars running across the full fabric width automatically receive 4 points even if only 0.1 inch wide. Any continuous defect extending more than 3 yards in the warp direction results in the entire roll being downgraded to second quality. This strict “3-yard red line” prevents systematic process failures from entering garment production.

Inspection machine speed must remain between 15 and 20 yards per minute. Excessive speed can cause colored fibers smaller than 2 mm to be missed, reducing detection accuracy below 100%. When inspectors record entries such as “45th yard, center, 4 points,” the data is automatically linked to the supply chain system. If the density of 4-point defects exceeds one occurrence every 10 yards, the defective yield rate for the roll may exceed 10.5%.

If edge needle holes intrude more than 0.5 inches into the usable width, deductions must follow the standard length-based grading scale. A reduction in usable width from 57 inches to 56 inches can lower marker utilization efficiency by approximately 1.8%. All defect locations must be documented with physical coordinates in inspection reports so garment factory CAD systems can automatically avoid them during marker generation.

For coated fabrics, if more than five adhesive particles with diameters of 3 mm appear within 10 square yards, the defects are classified as a clustered defect issue and receive an additional 4-point penalty even if individual defects score low. This rule prevents dense micro-defects from damaging the overall garment appearance.

Finished fabric inspection does not allow visual compensation or concealed repair marks. A repaired stitch line measuring 5 inches still objectively receives 2 points, with no deduction waiver for repair work. In a 10,000-yard shipment of precision fabric, 3-point and 4-point defects combined must not exceed 20% of the total score. Abnormal defect structures directly trigger batch rejection alerts.

Fabric weight variation must remain within ±5% of contractual specifications. Inspectors use a 100 cm² GSM cutter to take samples from the beginning, middle, and end of each roll. For a nominal 200 GSM fabric, readings below 190 GSM indicate inadequate garment body and structure. Such physical performance deviations carry automatic rejection authority and are not included within the four-point scoring system.

Measured length deviation from labeled length must remain within ±1%. Inspection machine tension must be maintained at a constant 5-pound pressure to prevent artificially inflated yardage caused by fabric stretching. If a roll shrinks by more than 2 yards after resting for 24 hours, it indicates serious production-side tension control issues, and the shipment will be flagged as a short-yardage risk.

Weft distortion measurement directly affects stripe and plaid alignment accuracy. On a 60-inch-wide fabric, the maximum allowable displacement is 1.8 inches. If distortion exceeds the 3% threshold, garment panels may twist severely after washing, causing side seams to shift forward. This structural defect is considered a critical audit item beyond the standard four-point scoring system.