A simple memory method for American Standard fabric scores!
1) Test each piece of fabric at least three times.
2) If it fails to meet the effective width of the finishing requirements, it will be considered unqualified.
3) Whole width: the distance between two edges of cloth.
4) Effective width: the effective width of the parts without selvage, pinholes, and non-printing.
Ecru cotton fabric defect scoring standards:
Fabric defects are scored on a “four-point scale”
1. Scoring method
1 point for defects 3 inches or less
Defects exceeding 3 inches to 6 inches will be scored 2 points
3 points for defects exceeding 6 inches to 9 inches
Defects exceeding 9 inches will be rated 4 points
2. Continuous defects, 4 points per 1 yard:
3. Larger defects (holes, etc.) are not counted in size and will be worth 4 points per 1 yard;
4. Rungs, middle edge color, wrong color, insufficient width, wrinkles, poor finishing, etc., when they occur continuously, every 1 yard
Score 4 points.
1. Each piece of cloth: (commonly used)
Total number of ratings×36×100 ratings
=number of yards × effective width (inches) 100 square yards
2. Each order: (whole batch of cloth)
Total score per yard×36×100 Rating
=Total number of yards × effective width 100 square yards
Each piece of cloth
1 set of 15 points/100 square yards
2 sets of 20 points/100 square yards
3 sets of 25 points/100 square yards
4 sets of 40 points/100 square yards
5 sets of 60 points/100 square yards
The current general standard is to use 2 groups, 3 groups, and 4-5 groups
Continuity defects
1. Continuous regular defects, 1 code will be counted as 4 points
2. If there are more than 3 consecutive codes, they will be treated as unqualified products.
Defects throughout the page
3. The following defects are not allowed in qualified products:
A. Full width defects over 6 inches in length.
B. Smaller full-width defects, more than 5 within 100 yards.
C. Taking 100 yards as a unit, there are an average of more than 2 serious defects in every 10 yards.
D. There are serious defects within 3 yards of the beginning and end of the fabric or defects on the entire fabric.
E. When laid flat, you can see fabric defects such as edge crepe, pre-shrunk wrinkles, wavy wrinkles, wrinkles, and wrinkle strips.
4. Matching colors: Color separation usually accepts 3 LOT colors. The number of small codes for each LOT color is more than 500 codes. The number of each LOT color is The color difference between the two is based on AATCC gray card level 4-5.
5. The color difference between the middle edge, head and tail of each piece of cloth should not be less than 4-5 levels.
6. During factory inspection, 6-inch pieces should be taken, numbered and left to the customer.
7. When the customer QC comes to inspect the goods, if the color is not standard (below 4-5), the order will be unqualified
8. Difference in code length: If the difference between the actual length and the card code exceeds 1%, the piece of fabric will be unqualified.
9. Paragraph length: The code length requires more than 40 codes.
10. Weft slant and weft arc: If it exceeds the following standards, it will be deemed unqualified (Note: When there is part of the weft slant on the entire frame, it shall be determined by part Scoring, latitude and oblique are not applicable to the 4-point scale, but should be recorded).
11. Holes: more than two spinning yarns are broken (any hole, regardless of size, will be scored 4 points).
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