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There are 40 kinds of common defects in the fabric. How many do you know?

Newstime: 2019-12-30 18:33:28

1.Barre

For knitted fabrics, this defect is characterized by the presence of uneven patterns in the fabric course or in the fabric transverse direction. Uneven yarns, uneven yarn tension, and different dye affinities of the yarn may all be the reasons for this.

2.Bad Place

This is a very convenient term for fabric defects that are difficult to describe in words. The term is often used to describe areas where fabric weaving has been severely damaged.

3.Bias (reference weft)

For woven fabrics, this kind of defect refers to the place where weft and warp yarns have a size deviation; for knitted fabrics, this kind of defect refers to the place where the size of the fabric row and the length of the fabric are skewed.

4.BirdseyeDefect

For knitted fabrics, this situation refers to the occasional irregularity of the tuck weave that is opposite to the fabric design.

5.Bow

For woven fabrics, this means that the weft yarns are in an arc manner in the width direction of the fabric; for knitted fabrics, this means that the stitch rows are in an arc manner in the width direction of the fabric.

6.BrokenEnd

This kind of defect refers to the place where the warp yarn is broken and repaired. Its common feature is that it can see the broken ends woven into the fabric.

7, pattern wrong color defects (BrokenColPattern)

For woven fabrics, this situation refers to the discontinuity of the pattern. An error occurred when drawing a colored pattern with the weaving looms of the loom or after the weaving machine was repaired when the weft was broken. Incorrect settings can cause this defect; for knitted fabrics, this situation is caused by the wrong shuttle change.

8.Brokenpick

This situation refers to the lack of weft yarns over part of the width of the fabric due to weft yarn breakage.

9.Bruise (refer to side support defects)

This situation refers to the fact that due to the abrasion of the yarn being knit or the finished fabric, the fiber loses its sense of direction and the appearance of the fabric is distorted.

10.Burlmark

This is a form of deformation caused by an excess of certain materials, including rovings, waste, and veil that are being removed with repair tools.

11, buttonholeselvage

This is a kind of fabric selvedge defect, which is caused by the excessive tension accumulated on the loom shuttle before the weft yarn is replaced. This tension tends to limit the correct weaving and weaving of the selvage weft yarns, creating a buttonhole-like flaw.

12.ChafedYarn

This kind of defect refers to the abraded yarn. After the yarn is abraded, the fiber will lose its sense of direction and distort the yarn. Such defects will affect the colorability of the yarn and often result in radial or weft marks.

13.ChoppedFilling

This kind of defect refers to the imbalance in the weft direction, which is characterized by the existence of a clear or neat pattern, which is caused by the eccentric behavior of the drawing roller.

14.Clipmark

This kind of defect refers to the place where the fabric is not dyed. This kind of defect is caused by the small metal clips clamped on the edge of the fabric. These small clips are to prevent or correct the fabric selvage turning during dyeing. Folded and used.

15.CoarseEnd

This situation means that the diameter of one warp yarn is significantly larger than the normal warp yarn diameter of the fabric.

16.Coarse Pick

This situation means that one weft has a diameter that is significantly larger than the normal weft diameter of the fabric.

17.Coarse Yarn

This situation means that the diameter of one yarn is significantly larger than the diameter of the normal yarn of the fabric.

18.Crinkled Fabric

For knitted fabrics, such defects are those that are wrinkled, shrunk, or raised that cannot be laid flat on a cutting table. The cause of this phenomenon may be due to the random twist of the yarn, it may be due to the uneven tension of the yarn during the knitting process, or it may be due to the uneven degree of reaction of the yarn in the fabric during the finishing process.

19.Kocked Yarn

This situation means that some of the fibers in a yarn appear to be crimped and the direction of the fibers cannot be distinguished. The reason for this is that some yarn fibers are too long compared to the drawing roller, which caused the fiber to be clamped by the next drawing roller before the previous drawing roller loosened the fiber. Causes fibers to break and curl. Twisted yarns look like tiny twists in the fabric.

20.ColFly

This condition refers to the appearance of different colored fiber impurities in the yarn or fabric.

21.ColMisdraw

In the case of woven fabrics, this refers to the fact that the colored yarns drawn on the loom's threads are the opposite of colored patterns and / or weave designs; for warp knitted fabrics, this refers to The color yarn drawn with the guide bar is the opposite of the pattern design.

22.Desizing defect (ColOut)

In the printing process, if the color paste in the storage tank runs out, it will cause blank jumps in the printing pattern.

23.Slurry defect (ColSmear)

This situation is due to the distortion of the pattern caused by applying pigment during the printing process.

24, hard crease defects (CompactCrease)

For knitted fabrics, this type of defect refers to hard creases caused by the use of wrinkled fabrics during shrinkage control and stabilization.

25.Crugation

This defect is caused by the abnormal phenomenon of a thick pad of the shrinking finishing machine.

26.Cover

This term is often used to describe fabric surface defects such as the number of warp and weft yarns, whether the pattern is prominent or not, and other desired characteristics that can be obtained by changing one of the two yarn systems.

27.Crease

This kind of defect refers to the crease caused by the fabric folding itself under pressure.

28.CreaseStreak

This kind of defect refers to the visible aftereffect caused by folding the fabric during dyeing or finishing.

29.Damaged

This situation means that the fabric has been damaged and can no longer be used for its intended purpose.

30.DotStreak

This kind of defect refers to a narrow, oscillating streak produced by the blade during the printing process.

31.Double End

This situation refers to the presence of two warp yarns where the fabric design originally required only one warp yarn.

32.DoublePick

This situation refers to the presence of two wefts at the loom shed where the fabric design originally required only one weft.

33.Doubling

For weft yarns, this situation means that the size of the weft yarn is twice as large as the normal size because both ends of the roving yarn hit the ends of the spun yarn simultaneously; for warp yarns, because both ends of the roving yarn hit One end of the spun yarn will lead to a thick warp.

34.DraggingEnd

For warp-knitted fabrics, this means that the warp is entangled by the warp beam, which results in the warp being knitted under unstable tension conditions.

35.Drawback

The reason for this defect is due to the excessive tension caused by abnormal restrictions gradually applied to many warp yarns. When restrictions are eliminated, these excessively slack warp yarns will gradually be woven into the fabric, creating fabric defects.

36.Dropped Pick

This kind of fabric defect is caused by the weft insertion device on the shuttleless loom cannot clamp and release the weft yarn in time. Since the weft insertion device cannot release the weft yarn in time, the weft yarn will enter the main body of the device, thereby causing half of the weft shortage in the width direction of the fabric. In addition, since the released weft yarn is immediately woven into the fabric, in this case, the weft yarn woven into the fabric may be tangled in some cases.

37.DyeStreak

This is a streak defect related to dyes, and its development mainly depends on the application of dyes on fabrics or the absorption of dyes on fabrics.

38.Lack of Menstruation (EndOut)

This situation refers to a lack of warp yarns.

39.Fillingb

This condition refers to a visually visible streak in the width direction of the fabric. The difference in the physical or chemical properties of the weft yarn is the direct cause of this defect.

40. Fine Yarn

For knitted fabrics, this defect means that the diameter of one or more yarns is significantly smaller than the diameter of the normal yarns of the fabric, which usually results in thin threads in the fabric course or the fabric direction Crack.


Contact: Mr. Wu 

Phone: 0512-63657777 

Fax: 051263657898 

Email: 46219118@qq.com 

Address: Xiaowei Economic Development Zone, Pingwang Town, Wujiang District, Suzhou, Jiangsu Province

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