Common defects that affect the appearance and quality of textiles:
1.Crack: The density of the warp and weft yarns is less than the standard specification.
2.Double Filling: Two weft yarns are woven into the same opening at the same time.
3.Double Warp: Two warp yarns are woven together.
4.Float: The warp or weft floats longer than the specified length.
5.Hole: The warp or weft yarn is cut, resulting in a hole.
6.Loose Ends: The warp yarn is loose, forming a wave-like pattern.
7.Miss Picks: A diagonal cloth is missing one or more weft yarns, causing horizontal stripes on the cloth.
8.Netting: The floating warp and weft yarns converge in the same area.
9.Reed Ness: The cloth surface has evenly spaced square holes.
10.Temple Mark: The edges of the cloth are damaged by the needles of the temple.
11.Wavy Mark: The surface of the cloth has uneven horizontal undulations, forming a wavy pattern.
12.Wrong Draw: The number or sequence of warp yarns entering the heddle eye does not comply with the regulations.
13.Wrong Weft: The number of weft yarns does not comply with the regulations.
14.Oil Stain: There are oil stains on the surface of the cloth.
15.Oil Warp: A single warp yarn is stained with oil.
16.Oil Weft: A single weft yarn is stained with oil.
17Water Stain: There are water stains on the surface of the cloth.
18.Barre Mark: The cloth surface is unevenly dense and forms a cloud-like pattern.
19.Shuttle Trap: The warp yarn is broken by the shuttle.
20.Broken End: There is a continuous lack of one warp yarn in the cloth structure.
21.Loose Pick: The weft yarn is woven loosely, forming a pattern.
22.Heavy Filling Bar: The density of the weft yarn is greater than the standard.
23.Filling Run Out: A small section of the fabric lacks weft yarns.
24.Reed Mark: The warp yarn is pressed unevenly by the bad dents of the reed.
25.Kink: The weft yarn is curled into granular form and woven into the cloth.
26.Hard Size: Poor or excessive sizing of the warp yarns leads to a rough cloth surface.
27.Knots: The joint point of the warp yarn forms granular shape, affecting the appearance of the cloth.
28.Colour Yarn: A section of yarn is mistakenly dyed and woven into the cloth surface.
29.Cockled Yarn: A section of yarn is coarse and uneven.
30.Rust Stain: The fabric surface is stained with rust.
31.Pulled in Filling: The weft yarn tail at the edge of the fabric is woven into the fabric.
32.Loom Fly: Small clusters of weft yarn are woven into the fabric.
33.Coarse End: A certain warp yarn is thicker than normal.
34.Coarse Pick: A certain weft yarn is thicker than normal.
35.Mending Mark: Poor traces after repairing the warp yarn.
36.Faulty Selvedge: The cloth edge is wavy.
II. Appearance Quality Standard of 4 Points in the United States
1.Except for catastrophic defects (i.e., holes, which refer to three or more yarns broken in both the warp and weft directions), other defects are scored according to the following method:
Using 1 square yard as the calculation range, the maximum allowable score for each square yard is 4 points.
Defects with a maximum distance of less than 3 inches are deducted 1 point;
Defects with a maximum distance of 3 to 6 inches are deducted 2 points;
Defects with a maximum distance of 6 to 9 inches are deducted 3 points;
Defects with a maximum distance of more than 9 inches are deducted 4 points;
2.Damage defects with a length of less than 1 inch are deducted 2 points; those with a length of 1 inch or more are deducted 4 points.
Score * 3600 / width / length per yard = score per 100 square yards.
4.Acceptance standard: The score per 100 square yards should not exceed 28 points, which is considered as a qualified product.