Analysis of Textile Fiber Raw Material and Yarn Breaking

Appearance: A cotton fiber cluster similar to the size of the joint appears on the surface of the fabric and it is spun into the yarn. If it is unplugged, the yarn is in a state of fracture or will be broken. Rovings made from low-grade raw cotton are often found in rovings.

Causes: 1) The dead cotton fiber lumps in the raw cotton were not completely removed during the flowering process. 2). The needles of cylinder or needle board are not sharp enough when carding, or the gap between the two is not set properly, and the combing function is not fully utilized.

(2)Seeds

Appearance: Pure cotton or cotton fiber blended embryonic cloth surface, with little black or dark non-fibrous fiber debris points.

Causes: 1). The ginning project separates the cotton fiber from the cottonseed, and the fiber end has cottonseed skin, or the cottonseed is crushed and added to the raw cotton. 2). The flowering process failed to completely remove the cottonseed skin.

(3) Slub

Appearance: On the warp or weft of the fabric, there is even a small piece of cluster-shaped fiber with a length of about 5 to 20 mm which is thicker than the normal diameter of the yarn.

Causes: 1). In the roving fed into the worsted fiber, the density of the fibers is not uniform, and there are smaller dense fusiform fiber bundles. 2) The roller and apron of the worsted machine cannot be uniformly controlled by the roving fed.

(4)Flyer

Appearance: similar to coarse knots, but thicker, not as slender, like knots, fibers clustered. Slightly reducing the yarn will not break the yarn.

Causes: Fiber clusters floating in the air in the spun rooms, or gathered in the fibers fed by the machine to the nearby table, wrapped around the yarn.

(5) Cockled Yarn

Appearance: In a section of yarn about the width of the fiber, there is a large coarse knot. The thickness of the yarn changes like a bamboo, generally in the roving fabric weft yarn is more common, it is also known as bamboo weft.

Cause: The drafting roller of the worsted machine is set tightly, the roller cover is too loose, and there are occasionally long fibers in the fed roving.

(6) Uneven Yarn

Appearance: Observed from the long side of the fabric, the weaving yarn has uneven thickness. Generally occurs in weft yarns.

Cause: The yarn spun from the spinning machine, due to failure of the drafting mechanism, or poor performance, causes the yarn to be spun out in a period of time, sometimes slightly thicker.

(7) Cloudd of Weaaving

Appearance: The number of weft yarns is significantly uneven. When weaving, the thick or fine ones are precisely arranged together to form a sheet. The appearance of the cloth looks like a piece of clouds, so it is called cloud weaving.

Causes: The regularity of the weft yarns is uneven, and the weft yarns are arranged in exactly the same way as the thick or thin weft yarns.

(8) Fiber Spot

Appearance: dyed fabric, a small amount of fiber in the fabric does not color, or lighter, and appears white.

Causes: 1). Cotton fiber has dead cotton fibers. 2). In the spinning process, polyester fibers are not colored due to inadvertent or improper control, mixed with a very small amount of polyester fibers, non-dispersive dyes when dyeing, and non-high temperature dyeing.

(9) Different Iots

Appearance: chemical fiber or chemical fiber processing silk fabrics, blended yarn fabrics, the thickness and density of the count are in line with the provisions, but after dyeing, between the warp or between the weft yarns have distinct boundaries of different shades of color.

Causes: 1) Although we use the same number of denier yarns for weaving, the manufacturing lot numbers are different. Due to the difference in the color-receiving properties, or the inconsistency in stretchability and bulkiness, there is a difference in shades of color after dyeing. 2). The blended yarns used in the weaving process have different yarn counts and densities, but the blending rate of the fibers in the yarns is different. After dyeing, there is a difference in shades of color.

(10) bad steaming:

Appearance:After the E/C blended fabric, after the desizing, scouring and bleaching, the width of the fabric varies from interval to width.

Causes: After the spun yarn is dropped, the yarn needs to be steamed in a closed container with high-pressure saturated steam to stabilize the physical properties of the yarn. If the temperature or time of the steaming yarn is insufficient, the yarn cannot be shaped, and then the fabric cloth surface appears a tight and loose phenomenon after cooking and bleaching.

(11) White Point:

Appearance: dyed fabric, the cloth surface shows an uncolored fiber group, especially in the dyeing darker than the more obvious.

Causes: Most cotton fabric dyed in the middle and lower grades. The cotton particles formed by the dead cotton fibers in the yarn were not removed during the refining and mercerizing. Due to the poor coloring of the dead cotton fibers during dyeing, it is difficult to dye and show white spots. Recently, the fabrics woven from the open ends of pure cotton, which are below 20Ne, often occur during dyeing.

Weaving weaving woven interpretation:

(1) Wrong Yarn

Appearance: In the hair of the knitted fabric, laterally continuous terry loops are woven from coarser or finer yarns of a larger gauge. Most of them are single roots, but even there are parallels or multiple roots. According to the dense, thick and normal are different.

Cause: When weaving knitted fabrics, operators mistakenly use non-specified counts or yarns of Danny size for knitting. Misuse of the finer yarns makes the fabric appear thinner. Misuse of thicker yarns results in thicker fabrics.

(2) Wrong End

Appearance: The warp yarns of woven fabrics have a single or side-by-side thickness that is not specified. If it is a fine yarn, it is called Fine End. If it is a thicker yarn, it is called Coarse End.

Contributing factors: The number of bobbin yarns involved in the warping of the menstruation was incorrect and the warp yarns were not specified. This kind of embarrassment is often full-pepper.

(3) Wrong Pick

Appearance: The weft of the woven fabric has one or more thicknesses that are not specified. If it is a fine yarn, it is called Fine Pick. If it is a thicker yarn, it is called Coarse Pick.

Causes: When weaving, the weft yarn of the weft tube, or the number of bobbin yarns fed by the shuttleless weaving machine is wrong, and we use the weft yarn that is not specified. After the operator discovered it, it was removed and shut down. However, weaving machines that change tubes automatically are often not easy to find.

(4) Wrong Weaving

Appearance: The weave method is wrong, and the texture of the cloth is different from that of the original designer. For example, the left twill is woven into a right twill.

Causes: Mostly caused by wearing errors. Others, such as jacquard fabrics are incorrect, warp yarns are misaligned in multi-standard warp fabrics.

(5) Wrong Draw

Appearance: Two warp yarns that are adjacent to each other are woven together into one fabric. Regardless, the root (actually two) yarns appear particularly thick. Such crickets are all perfectly matched. If they are found in the primary weaving of the warp beam, removing one of the roots in the tandem can be completely avoided.

Causes: 1) When neglecting the warp draft, it is negligence to treat two strands as one. 2) After the sizing, the yarn is not clear, the two stick together and form the same root. 3). Two threads penetrate the same heddle at the time of threading.

(6) Mispick

Appearance: Two wefts are woven into the same weaving mouth and even have three or more roots. The length of the parallel weft ranges from the full width of the fabric to more than 10 centimeters near the edge of the cloth.

Causes: 1). The length of the fabric is full and weft. After troubleshooting due to shutdown, we did not check the weaving drive. Or the weft pin failed and the weft break did not stop. 2). Non-full-width latitude and longitude, due to the length of the insurance yarn is not enough, the side cut is not set properly or sharp enough, and the end of the yarn is not removed after weft break.

(7) Set Mark, Fine

Appearance: The density of the weft yarn arrangement on the fabric is less than that specified. The weft yarns weave into the length of the fabric are gradually thinned from the normal density, and gradually returned to the original density from the thinnest, forming a thin cloth with a constant width.

Causes: 1). The needle of the weft is broken. When there is no weft yarn, it will continue to idle. 2). Warp tension is not properly controlled during weaving. 3). The warp tension adjustment is too tight before stopping and driving.

(8) Set Mark, Coarse

Appearance: The density of the weft yarns arranged on the fabric is denser than the regulations. The weft yarn weaves along the length of the fabric gradually densifies from the normal density, and then gradually returns to its original density from the closest density, forming a narrow cloth with a narrow width. Causes: 1) The warp tension is not properly controlled during weaving. 2). Warp tension adjustment is too loose when stopping and driving.

(9) Pick-Out Mark

Appearance: The weft of the weft cloth is not well dismantled. After weaving continues, there are still marks on the cloth surface.

Causes: In the weaving of fabrics, the operators found that wefts were weaving at different places, or weaving severe roads and thinning. We immediately shut down the wefts that weaved in and cut them out. When the warp yarn is removed, the warp yarn is rubbed off by the weft yarn, resulting in a large amount of hairiness. Therefore, after reweaving, the warp yarn exhibits a width-equivalent multi-hairiness cloth surface in the scope of original dismantling.

(10) Broken End

Appearance: The warp of the fabric breaks one or more roots, resulting in a large distance between the two adjacent yarns. In plain weave fabric, it becomes two broken yarns juxtaposed, as if by. In twill weaves, there is a phenomenon of discontinuity.

Causes: The warp yarn is interrupted by weaving and the stopping device fails. Weaving continues without weaving the warp yarn.

(11) Broken Pick

Appearance: The weft yarn in the fabric breaks, but the distance between the ends of the break is very short, ie the length of the cut off is small. This type of defect is generally not significant.

Causes: 1) The weft yarn breaks in the weaving but it continues to weave in a moment, only a short distance away. 2). There are serious rough knots and flying flowers on the weft yarn, which causes the weft to break when it is removed.

(12) One hundred feet (lacking)

Appearance: This kind of flaw only occurs in the twill weave, in the warp of the same part of each complete organization, at the same time floating on the surface of the cloth, it resembles a set of many feet.

Causes: When a twill weaves less weft yarn, the interweaving point decreases, and part of the warp yarn floats on the weft yarn twice. (13) End Snarl

Appearance: One of the warp yarns in the fabric has a small amount of curling and twisting and weaving into the cloth. Fabrics made from strong twisted yarns are more likely to occur.

Causes: One of the root warp yarns was loose during warping, causing a period of curling.

(14) Filling Snarl

Appearance: Fabric weft yarns have a small amount of curling and weaving into the fabric. Fabrics made from strong twisted yarns are more likely to occur.

Causes: 1) In the weft bobbin or in the bobbin yarn used for the weft yarn, the small yarn is already curled up. 2). The weft bobbin is improperly formed and it is not smooth when the yarn is unreeled. 3). The tension of the weft yarn is too small, and the mouth of the weaving is not clear.

(15) Reed Mark

Appearance: Between the two warp yarns, there is a large gap between the two warp yarns, and weaving weft yarns can be seen.

Causes: 1) The deformation of the steel rakes has failed to control the warp yarns in position, or the dents have loosened. 2). There are one or a few gaps in the warp yarn and the tension applied during weaving is too large.

(16) Temple Mark

Appearance: Approximately 2 to 5 cm wide acupuncture or traces of acupuncture in the cloth. In severe cases, the weft yarns of the part are wavy and curved.

Cause: The thickness of the needle used in the temple supporter is not appropriate, and the stall supporter stuck in the ring cannot be rotated, or the rotation is not smooth enough.

(17) Rolling

Appearance: In the position near the edge of the cloth, there are many broken strands in succession. Although they are properly attached, there are still many yarn tails on the surface of the fabric after continuous weaving.

Cause: The shuttle is clamped in the mooring passage, which cuts off many warps. More often than not, the structure of the shuttle is poor and the movements of the pick and the opening are hindered. The shuttleless loom that is used now can avoid such defects.

(18) Reedness

Appearance: The two warp yarns that are judged are squeezed together, and the gap between the left two and the right two is increased, forming a checkerboard-like small square lattice with the weft yarn.

Causes: 1) The angle at which weaving is opened when weaving is too large. 2). The warp tension between upper and lower layers is too different. 3). The density of the dental caries is not uniform.

(19) Yarn Tail

Appearance: On the surface of cloth or cloth, there is residual yarn protruding from the fabric.

Cause: Due to warp or weft breakage, the tail was not trimmed after being attached. The side of the loom did not cut the thread and did not cut off the yarn after the weft insertion.

(20) Connector (Knot)

Appearance: Thick and round ball with tight knotting on the fabric.

Cause: After the warp or weft breaks and joins, the knots hit are too large to protrude from the fabric.

(21) Float

Appearance: warp or weft yarns are not woven in accordance with the specified organization, but float on the surface.

Cause: The angle at which the weaving mouth is opened is too small, or the heald wire is suspended unevenly, and a few warp yarns are particularly loose.

(22) Cobweb

Appearance: Judging by the warp or weft yarns, continuous yarn jumping occurs at the same site, so that there is no interlacing point at a part of the fabric to form a mesh.

Cause: Same as jumping yarn, only more serious.

(23) Weaving Hole

Appearance: The warp and weft yarns of the embroidered fabric break, forming holes of different sizes. This kind of flaws can easily occur in fabrics with relatively longitude and latitude.

Causes: The friction of the shuttle, the licker-in holding the fishing hook, will cause the warp and weft to break. In addition, the warp can also break the warp. (24) Slack End

Appearance: The warp yarn weaves into the cloth, in the interweaving point, is convex and concave on the surface of the cloth, and it is arched upward. Generally speaking, it is called ribs in the factory.

Causes: The warp yarns of a single warp are under less tension during weaving, or the warp yarns are too loose after the warp yarns are joined.

(25) Slack Filing

Appearance: A weft yarn that is woven into a cloth, at the point of its intertwining, protrudes from the cloth more than normal and has a phenomenon of upward arching. Generally not obvious.

Cause: A single weft yarn has less tension when weaving.

(26) Tight End

Appearance: One pattern of warp is more even, and the interlaced point has a phenomenon of concave cloth surface, which is more obvious in the diagonal and satin fabrics, and serious can cause unevenness in the cloth.

Cause: One of the warp yarns is under tension due to weaving, or the warp yarn is pulled too tightly after breaking.

(27) Titht Filling

Appearance: One weft yarn in the cloth pattern is relatively flat, and the interweaving point has a phenomenon of concave cloth surface. This type of embarrassment is relatively rare, and it is neither obvious nor obvious.

Causes: Weft or retreat of the weft thread is not smooth, and the tension experienced by the occasional weaving is too great.

(28) cracks

Appearance: A number of warp or weft yarns juxtaposed, curved in an inclined manner to form a gap.

Causes: Large knots, fly flowers, shrinkage, weft shrinkage, etc., after elimination, their adjacent warps or wefts were not combed with steel combs.

(29) Repair root

Appearance: Weaving has serious defects. Although it is eliminated and repaired, traces remain.

Causes: broken through, dilute, secret road, etc. Although the repaired personnel combed with steel combs, but the yarn arrangement is still not normal, and the phenomenon of bending.

(30) Teariness

Appearance: The weft yarns in the fabric are not straight, and the weft yarns with a small area are curved in the same direction. Filamentous fibers are used as warp yarns, staple fiber spinning is used as weft yarns, or warp yarns are far more common than weft yarns are fine. Such as rich silk, pull cloth, Oxford cloth and so on.

Causes: 1) The structure of the fabric is not properly designed, and the interweaving of the warp yarns and weft yarns tends to slip. 2). The weft density is relatively thin, and the warp yarn is subjected to too much tension during weaving. 3) During the printing and finishing process, the fabric is intermittently clamped while traveling.

(31) Broken Seelvage

Appearance: The edge yarn of the edge of the cloth is continuously broken more than three yarns, and the cloth edge cracks to form the missing one.

Causes: 1) The tension on the side yarns during weaving is so large that it breaks. 2). The edge holder is used improperly or the specifications do not match, the edge yarn will be broken.

(32) Tight Selvage

Appearance: The cloth weaves are straight, but in the cloth body adjacent to the cloth edge, there is a phenomenon of loose wrinkles. The cloth edge and the cloth body are not flat. If the cloth is flattened, the cloth edge appears to be in a more tensioned state than the cloth, or the fabric may have a side-damp. Cause: The tension of the warp yarns used as weaving is too large.

(33) Slack Selvage

Appearance: The edge of the cloth is not flat, like the shape of lotus leaves. If the cloth is flattened, the cloth will be flat and the cloth will have wrinkles or ear-like shapes.

Cause: Warp tension is too loose for weaving.

(34) Serrated edge

Appearance: The outermost edge of the two cloth edges is not straight, and is a zigzag bending change.

Causes: 1) The number of warp yarns used as a cloth edge is too small, or the cloth edge line is not rejoined after the break, resulting in insufficient number of yarns. 2). The tension caused by the picking force or weft thread is too large.

(35) Difficulty

Appearance: Density of cloth weft yarns, changes in micro-periodic thinning, depending on the feeling of a thin section. Cause: The tension of warp yarns or the rate of warp yarns fed out during weaving is not stable.

(36) missed needle

Appearance: The distance between two rows of loops in the knitted fabric is larger than normal. The line connecting the two terry loops tends to be straight.

Causes: When the weft knitted fabric is woven, the yarn is not eaten into the needle, resulting in less weaving a pile of terry.

(37) Error in yarn allocation

Appearance: fabrics that are first dyed, or fabrics that have different specifications of yarns on the tissue. The yarns are not arranged according to the design rules, and the pattern or pattern is not as expected. Occurs in sliver fabrics, plaid fabrics, and jacquard fabrics in a variety of sizes.

Causes: 1). The number of yarns in the sliver cloths and plaid cloths does not conform to the specified number, or the number of weft yarns in the stencil weft yarns does not conform to the regulations, resulting in abnormal sliver and grid shapes. 2). Warping does not arrange the warps of different specifications according to regulations, or does not weave wefts of different specifications according to regulations.

(38) Starch Lump

Appearance: Slurry blocks or spots appear on the surface of the cloth.

Cause: The slurry used for sizing fails to be fully gelatinized, the plasto roller wears, and the roller surface is uneven.

(39) mildew

Appearance: The appearance of grayish black or light red moldy spots on the surface of the napped fabric.

Cause: The humidity in the storage location is too high and the storage time is too long. Woven Fabric - Dyeing Finishing - Deafness Interpretation: (1) Gasoline Spot

Appearance: Occurred in E/R blended fabrics. After dyeing, there were spots of oily droplets, slightly darker than normal parts. Observed with a magnifying glass, the plush in the dark part of the fabric, the tip shows a tiny bead, and more than normal plush.

Causes: This is caused by the uneven singeing. Spots are stained with dense spots. Plushs are not fully burned. They become melted at the tip and are strong in color, so they are more dense.

(2) Fuzz (Nap)

Appearance: After dyeing and finishing the fabric, the fabric is still slightly plush, different from the color of the pattern.

Causes: 1) The singeing is insufficient, and the hairiness of the fabric is not completely burned. 2). When using the liquid dyeing machine, the jet flow is too strong.

(3) Inperfect Penetration Of Dye

Appearance: After dyeing, the surface of cloth appears dark clouds.

Causes: 1) Desizing, seminal pulp is not sufficient, or wax and other substances that have been treated and removed are attached to the fabric. 2) When the bath dyeing bath ratio is too small, the heating rate is too fast, so that the staining liquid is in a gelled state.

(4) Refined spots

Appearance: In the scouring process, the non-fibrous material in the scouring-off fabric is combined with the scouring agent, and then the plush under the falling fabric is adhered and adhered to the surface of the fabric. The irregular yellow flake marks appear on the fabric surface. When the nails are lightly shaved, short piles and debris fall.

Causes: 1). The scouring agent is easy to condense at room temperature. 2). When scouring with a scouring kettle, the washing is insufficient or the washing temperature is low. 3). In the continuous scouring and scouring chamber there are deposits, or too much foam in the scouring tank and the roll surface is dirty.

(5) Bleached Hole

Appearance: The matte cloth is normal. After being bleached by hydrogen peroxide, the warp yarn or weft yarn that has been judged on the cloth surface is broken to form a small hole.

Causes: Rust adheres to the cloth surface, or iron ions are contained in the bleaching bath water. During the bleaching process of the fabric, hydrogen peroxide is rapidly oxidized to break the yarn.

(6) Skilteriness

Appearance: The fabric has irregular shades of color.

Cause: The desizing of the pre-treatment project was not fully completed.

(7) Mist

Appearance: Patchy stains, deep and shallow, contours are not obvious, shape and size are not the same, there is no concentration, and there is no certain rule.

Causes: 1) The fabric to be dyed is splashed into sewage or other medicines. 2) After the training and bleaching, they are not dried immediately, they accumulate on the truck for a long time, and some parts of the fabric are air-dried. 3). The embroidered cloth is stained with oil stains. After the embryo inspection, traces left after brushing with a strong detergent are used.

(8) Color difference

Appearance: The dyed or printed fabric, the color of the finished product dyed, or the color of the printed pattern cannot be exactly the same as that specified.

Causes: 1) The sample used for the specified color sample is too small, and the exact same color is not achieved when the sample is color proofed. 2). Weighing dyes and auxiliaries is not accurate enough when preparing dyeing solutions or printing pastes. 3) The conditions of the process and the proofing were not fully cooperated, and no empirical modification was made.

(9) Cylinder color difference

Appearance: A large number of fabrics, fractional cylinders or several times a cylinder dyeing, non-stained in the same cylinder, different shades of colored light.

Cause: Each cylinder is of the same type, but its function will be slightly different. In the dyeing process, the conditions of each operation cannot be the same.

(10) Yin and Yang color

Appearance: dyed full-width fabric, the color of the front and back surfaces has a color difference.

Causes: 1) The bulge rolls out of the cloth and the direction of travel of the cloth is not in the same plane as the suction line. 2). The heat received on both sides of the fabric is different when it is pre-dried after pressing. 3). The wind speed on the two sides of the fabric is different during resin processing.

(11) Color difference

Appearance: Full-width fabric, from the left side to the right side, the color gradually darkens or becomes lighter. Comparing the two cloth edges, there are significant differences in color.

Causes: 1) The pressure suction rate of the squeegee rolls gradually increases or decreases from left to right. 2). Roller roller or roller sculpting or poorly made print roller. 3). The pressure on the rollers of the printing roller or roller varies from left to right. 4). In the pre-drying, fixing or resin processing, the temperature or wind speed in the box is not the same.

(12) Middle and thin (Listing)

Appearance: The color of the fabric near the center of the cloth and near the center has a difference in depth. Causes: 1). In the open cross-dyeing machine, the curvature of the spreader device is not appropriate, so that the cloth dyeing rate is not uniform. The temperature inside the bath is inconsistent with the center. Add new staining fluid unevenly. 2) In the flow dyeing machine, the fabric circulation speed is slower and the heating rate is faster. 3) In the open width dyeing machine, the suction rate at the center and ends of the roll is inconsistent. Both the temperature and the wind speed at the time of drying are not uniform at both ends and at the center. In the continuous dyeing process, the tension on the cloth body is not uniform. 4). The center of the fabric that has been formed during the pre-processing process is inconsistent with the two sides. 5) When the roller or the Rodriguez prints, the center of pressure applied is inconsistent with the two ends. 6). The resin was not processed immediately after dyeing, or it was not completely dried after the resin was applied and accumulated for a long time.

(13) Tailing of Ending

Appearance: A group of fabrics containing several or several dozens of fabrics. After continuous dyeing under the same setting conditions, the cloths that begin to be applied to the end of the fabric are different in depth.

Causes: 1). In the pre-treatment process, there is a difference between desizing, scouring, bleaching, mercerizing, and stereotypes before and after a batch of fabrics. 2). In the open cross-rolling dyeing, the dyeing rate is not uniform with the combination of dyes, the guide cloth and roll method are not appropriate, the dyes are added wrongly, and the dyeing temperature is not properly controlled, which will cause the color difference between the first and the end. 3). In continuous dyeing, the pressure suction rate changes, the stability of the dyeing fluid is not good, and the temperature during drying gradually changes. 4) Dyes and additives used in combination have poor compatibility, and uneven layers of dye particles and water may occur. Due to capillary action, water enters the fiber first, causing the concentration of the dye solution to change, causing a color difference between the first and the end. 5). When dyeing with an ice dye, the dye will gradually hydrolyze during a long period of dip dyeing, and it will also cause a color difference between the first and the end.

(14) Migration (Migration)

Appearance: As the dyed fabric dries during drying, the moisture contained in the fabric evaporates, and the dye moves to the surface of the fabric as the water moves, causing a change in shade of the fabric surface.

Causes: 1). Pressurization rate is too large. 2) When the dyeing solution is used, the dye used is excessive, ie, the concentration of the dye solution is too high. 3). Dyeing time before dyeing is too long. 4). The drying rate is too fast. 5) No transfection inhibitor added, or insufficient amount added.

(15) Dyestuff Spot

Appearance: The surface of the dyed fabric has a dark flake, a variety of shapes, and irregular spots.

Causes: 1. Improper use of dyes and auxiliaries. Dissolution and dispersion of the dye are not sufficient. 2). Dyestuffs or auxiliaries contain impurities. 3). Dyeing water hardness is too high, not using soft water, or using soft water softener.

(16) Dyeing Streak

Appearance: The yarns or yarns arranged adjacent to the dyed fabric show differences in hue, density, and brilliance. There are only one person, and there are also several yarns that are banded. There are shorter ones and all the others.

Causes: This is a chemical problem with chemical fibers used in dyeing fabrics. This difference occurs due to the difference in dyeing properties.

(17) Instrinsic Luster Streak

Appearance: The surface of the non-fluff dyed fabric, when exposed to light, the color will appear as a strip of light or dark.

Cause: This is the physical property of the chemical fiber used in the dyed fabric. Due to the different reflectivity, absorbability, and permeability of the fiber in the fabric, the gloss, transparency, and whiteness are different in observation. For example, the additives in the chemical fiber, the degree of crystallinity, the degree of orientation, and the amorphous state all affect the gloss of the fiber itself.

(18)Fabric Configuration Streak

Appearance: dyed fabrics with non-plain weaves, depending on the change of the tissue, the color of the fabric is dark, light or bright and dark.

Causes: Due to the structure of the fabric, the distribution of the interweaving points of the fabric and the arrangement relationship between the warp and the weft are different, resulting in different reflectivity and permeation of the fabric.

(19) Spacing Streak

Appearance: In the warp direction or longitudinal direction of the dyed fabric, the difference in the color of the straight strip is formed. Causes: During the dyeing process, the warp yarns of the fabrics are moved to make the arrangement density of the yarns non-uniform, and the gaps between the adjacent yarns are large and small, resulting in differences, resulting in visually shallow and deep.

(20) Carrier Spot

Appearance: Polyester fabric dyed cloth, with droplets of concentrated dyeing spots.

Causes: 1) When the polyester fiber fabric is dyed in an atmospheric pressure bath, spots are formed on the surface of the fabric after absorbing the dye due to poor dispersion of the dye-conducting agent. 2). The dye-conducting agent that volatilizes during atmospheric dyeing, condenses on the top of the device and drops on the dyed material.

(21) Warp Stripe, Yarn Texture Streak

Appearance: pieces of dyed woven fabrics, with rain-like stripes in the direction of the fabric warp. In severe cases, it can be seen on the surface of the cloth. This type of defect will show significant and inconspicuous differences due to the darkness of the test site, the direction of observation, and the distance.

Causes: 1). It is formed due to the difference in yarn count, uniformity, number of twists, and the cross-sectional shape of the yarn. 2). Improper use of dyes, especially when dyed green. 3). If the polyester processing silk fabric, improper desizing before dyeing, local residual paste, stain less when dyeing, lighter in color, and the existing warp stripes.

(22) Barry Dyeing, Filling Band in Shade

Appearance: In the weft direction of the woven fabric, or the horizontal continuous loop of the circular knitted fabric, the color after the dyeing shows a deeper or lighter ribbon.

Causes: 1). The woven fabric has a secret path or a sparse pattern. 2) When the knitted fabric is weaving, the yarn feeding tension is uneven, or the number of loops is uneven. 3). Filament yarns with the same specification and different lot numbers are used for weaving. 4). The filaments used for knitting are not uniformly heated during the heating process.

(23) Dye Spot

Appearance: 1). In the dyeing, light-colored fabric cloth, with the same color of the tiny color points. 2). On the cloth surface of bleached or light-colored fabrics, there are tiny spots of other dyes.

Causes: 1) The dye is poorly dissolved, and there are tiny particles that are not dissolved. 2). The dyestuffs fly in flight and fall on the fabric to be processed. 3). The mechanical equipment is not cleaned. After the dark color is processed, light color processing is continued.

(24) Rope Mark

Appearance: When the rope is dyed, the fabric shrinks into a rope. After dyeing, the cloth surface has irregular dark and light wrinkles along the direction of the cloth length.

Causes: When using Wenqi or liquid dyeing machine dyeing, the fabric is not pre-determined or stereotyped. In the dyeing, the scroll bar malfunctions and stops running. Rapid warming or cooling. The dye bath ratio is too small. The fabric knots in the cylinder and so on.

(25) Padding Mark

Appearance: When the woven fabric is dyed by the open-width dyeing, the fabric is folded in the warp direction between the two rolls. When passing through the pressure line, the suction rate varies due to the difference in thickness. The folded part is slightly lighter than normal. Occurs in the two fabric parts of a fabric.

Causes: 1) The fabrics to be dyed have creases during the pre-treatment process and are not completely eliminated during stereotypes. 2) The spreader of the cloth feeding device failed to fail to open the fabric. 3). Horses and horses have bad joints, and there is shrinkage or irregularities.

(26) Moire

Appearance: The surface of the dyed fabric shows a grainy, shiny appearance.

Causes: 1) When the warp beam dyes, the shrinkage of the fabric is too large and the curling layer moves. 2) When the warp beam dyes, the coil is placed too tightly, causing the dyeing fluid to circulate abnormally.

(27)Uneven Dyeing on Selvage

Appearance: After dyeing the fabric, the edge of the fabric is different from the color of the fabric.

Causes: 1) The edge of the fabric is too loose or too tight. 2) When setting before dyeing, the cloth edge is clamped by the high temperature splint. 3). Edge curling occurs when dyeing. 4) When the open-width dyeing is performed, the winding is uneven and the cloth edge is oxidized. 5). Insufficient reduction during open-curing vulcanization or vat dyeing. 6). The pressure suction rate of cloth edge and cloth surface is inconsistent when open-width dyeing. 7). After washing, the stain is insufficient and there is residual drug on the cloth.

(28) Fading of Selvage or Discoloration

Appearance: Finished fabric after dyeing and finishing. The color of the cloth is different from the normal one.

Causes: 1). When the resin is processed, the temperature of the needle plate or splint is too high, and the dye sublimates. 2) When drying the fabric using a rotary drum dryer, the temperature is too high and the cloth edges are tight on the cloth cylinder.

(29) Edge Mark

Appearance: refers to the cylindrical knitted fabric, tubular flat folded on both sides of the turn, showing abnormal dyeing phenomenon.

Causes: 1). The oil added during weaving deteriorates. 2). Improper or long-term storage of the embryonic fabric, the fabric edge is changed or contaminated by air and sunlight. 3). When the cylinder is shaped, the temperature of the setting frame is too high.

(30) hot mark

Appearance: The cloth surface of the dyed fabric has large creases that are lighter in color, the area is not the same, and the direction is not certain. It mostly occurs in the E/C blended woven fabric.

Cause: Due to the use of conveyor belt type continuous training floater, the machine is filled with saturated steam, and the stainless steel conveyor belt is subjected to high temperature drying and close to the fabric on which the fabric is folded so that the fabric is reduced in color absorption due to low exposure.

(31) Colored Spot

Appearance: The surface of the fabric exhibits a large area of ​​other color contamination without a certain shape.

Causes: 1) When the fabric is in a wet state, it is contaminated by contact with dyed fabrics of different colors. If the color difference is more obvious. 2) The appliance has not been thoroughly cleaned during processing or handling.

(32) Scum Spot

Appearance: The surface of the fabric is covered with foam residue, and after drying, it becomes a trace of a large piece or a thick stripe-like color.

Causes: 1). The dyeing fluid has more foam and adheres to the surface of the fabric. Due to improper use of dispersants and additives. 2). There are many bubbles in the reducing solution, especially when it is reduced after dyeing with anthraquinone dye. 3). In the phenolic coloring solution, if impurities cannot be diazotized, foam scum will form.

(33) Tarring Strining

Appearance: Dyeing between dyes and dyestuffs and dyestuffs causes dyes to dissolve poorly. Stained or short-striped darker stains occur on the cloth after dyeing.

Causes: 1) The dye is not dissolved or dispersed well, or the dye is mixed with other chemicals, and the hardness of the dyeing water is too high. 2) The combination of dyes and auxiliaries is not suitable, or the timing and sequence of adding the auxiliaries are not appropriate.

(34) Drum contamination

Appearance: During the dyeing and finishing process, when passing through the cylindrical device, the peripheral surface of the cylinder is dirty, for example, oil, chemicals, dyes, and other contaminants are contaminated on the cloth surface. The shape is mostly small and there is a certain distance between the two pollutions.

Causes: 1) The guide roller has oil stains. 2). The press roll is covered with a tar-like lake, or a filth such as a short fiber dropped from the fabric. 3). The drying cylinder has grease and dirt.

(35) Chemicals Staining

Appearance: The surface of the fabric is discolored, stained, or deteriorated.

Causes: Formation of chemicals that should not be used to infiltrate fabrics.

(36) Dyeing Stop Mark

Appearance: Along the weft or transverse direction of the fabric, there is a trace of 2 to 10 cm wide, darker or lighter than the normal color, and it has watermarks on both sides.

Cause: When the machine suddenly stops operating due to power outages, reeling, or other mechanical failure during normal operation, the fabric is held between the two rollers and occurs when the dyeing liquid or the pressure-reducing fluid is pressurized.

(37) Spots

Appearance: The finished finished fabric has a dark spot of the same color after opening. Causes: After dyeing and finishing the fabrics, in a sealed package, due to condensation of evaporated water vapor, dyes and processing agents with weaker wet fastness will cause them to move and form spot-like stains.

(38) Fuzzy patterns

Appearance: The printed pattern lines are not clear enough, giving the pattern a fuzzy feel.

Causes: This type of fabrics occurs in roller printing. Improper gravitational printing drums and low pressure on the squeegee can cause such defects.

(39) Off-print appearance: The pattern printed on two or more colors fails to follow the pattern of the original design, resulting in the phenomenon of deviation or full-bottom printing.

Cause: When printing two or more patterns, the relationship between the plate and the plate cannot be accurately aligned.

(40) lack of pulp

Appearance: The design of the original design, some or all of which are not printed.

Causes: 1). The printing paste in the roller printing machine runs out of pulp and is not added in time, or the automatic supply of pulp equipment fails. 2). Pump failure in the Rotary printing machine.

(41) Broken print

Appearance: The pattern of fine lines is printed, and the pattern is occasionally interrupted.

Causes: 1). Because the pattern is too thin, the depth of the roller printing plate is not enough. The Prince of Prince of India version of the hole Prince, printing paste is not easy to penetrate. 2). The printing paste has a high viscosity.

(42) Print crease

Appearance: On the cloth surface of the printed fabric, a pattern is not printed along the longitude or longitude of the warp or longitudinal area.

Cause: Wrinkle overlaps on the fabric surface when printing, and the covered area is not printed.

(43) Plug version

Appearance: On the surface of the printed fabric, patterns with a small dot area cannot be printed, or printed dots are formed.

Causes: Occurred in the Gangban or Luodali printing. The sticky mass in the printing paste is attached to the printing plate to block the printing paste from passing through.

(44) Cross color

Appearance: The printed pattern is not sharp enough, and there is a phenomenon of crossing out of the pattern.

Causes: 1) The viscosity of the printing paste is not sufficient. 2). Two-color printing paste overlaps.

(45) Printing slurry contamination

Appearance: White printed fabrics are very uniformly contaminated by a very small amount of printing paste, which occurs mostly on the rollerd fabric.

Causes: 1). The mirror surface of the printing roller is not enough and it is easy to adhere the printing paste. 2) The squeegee is in poor contact with the printing roller, or the squeegee is not frequently sharpened, not sharp enough. Printed black or darker patterns on white are most likely to occur.

(46) Scraper

Appearance: The longitudinal direction or longitudinal direction of the printed fabric has a trace of a single color that is neat and tidy. In the wider ones, it is still showing that the central part is colorless and disappears from the deepest to the lightest side.

Cause: Occasionally agglomerates or clumps are present in the printing paste, which is pressurized by the doctor blade of the roller printing machine and slides over part of the peripheral surface of the printing drum.

(47) Printing cable

Appearance: In the fabric printed by roller, the pattern printed on the surface of the fabric prints all the thin lines on one or more non-printing rollers along the longitudinal direction or longitudinal direction of the fabric.

Cause: The embossing of the printing roller is poor, and the groove side of the pattern is strongly scraped by the blade and damaged. Or the printing paste is mixed with hard micro-chips, and the printing roller is scratched by the groove.

(48) Print trails

Appearance: In the fabric of the roller print with dot, there are traces of dragging along the long side of the fabric along the dot, which makes the edge of the pattern not neat. Cause: Pulp is too heavy for printing. Into the fabric and the cloth tension is not uniform. The velvet on the fabric surface accumulates on the scraper.

(49) Printing jumper

Appearance: The pattern of the printed fabric varies along the length of the fabric and changes into a wavy color.

Cause: Squeegee installation and pressurization are not suitable.

(50) bad version

Appearance: The continuous pattern of the printed fabric, which is not joined at the place where the plate is joined, occurs in the printed fabric of the sleeve printing plate.

Causes: 1). The plate used for printing has poor plate making. 2). Pre-printed version of the pre-printed version has not been accurately controlled.

(51) Base seam contamination

Appearance: The pattern of the printed fabric has a trace of a very vague pattern along the width of the fabric, but the degree of blurring is not uniform.

Cause: The bottom of the roller print is clothed in a ring shape. The seams are thicker due to overlap and are more likely to absorb moisture. After drying, they will still be wet compared to normal cloth. Accumulation with the printed fabric will wet the printed fabric, and the printed paste will infiltrate. (52) Printing Stop Mark

Appearance: The pattern of the printed fabric is along the direction of the width of the fabric, and there is a trace width of about 5 to 15 centimeters for each color printing paste, and there is no pattern display. Cause: The printing machine stops running, and the printing roller or roller does not immediately rise and continues to press on the surface of the cloth, causing excessive printing paste to penetrate into the cloth.

(53) Water Roll

Appearance: On the cloth surface of the dyed or printed fabric, there are traces of lighter marks in the shape of a dot or larger sheet. The edge of the mark is often deeper than the center.

Cause: Fabrics that have not been post-treated after dyeing or printing. During the storage period, the water in the factory condenses into water droplets and falls on the fabric. The water droplets will undergo significant discoloration, which means that they will be dried and cannot be restored. primary color. This is due to the fact that the water droplets combine with the dye in the form of crystal water. If irons are used for high temperature drying, they may return to their original colors. The use of anthraquinone dyes for the dyeing of cellulosic fiber fabrics is most noticeable when such water rolling marks occur.

(54) Hair stains

Appearance: After the base fabric has been dyed or printed, the color produced on the fabric after the hair color treatment has light and irregular patches.

Causes: 1) The proportion of the base liquid of the phenol dye and the concentration of the color liquid is not proper. 2) The drying temperature is too high after rendering. 3) Incomplete dissolution of the reducing agent used for continuous staining. 4) In the process of hot steaming, the air in the steamer is not completely removed, so the fabric is in contact with the air. 5) In the process of hot steaming, the temperature in the steam box is not uniform. 6). The oxidation of the dye is incomplete. 7). Before dyeing or printing, the fabric is exposed to direct sunlight.

(55) resin spots

Appearance: Finished resin-processed fabric with dried resin spots on the surface. As a glossy reflection, the touch feels smooth and stiff.

Cause: In the resin processing process, the resin is not fully dissolved evenly, the fabric passes through the resin slurry tank, adheres to the surface of the cloth, and then is pressed by a roller to form a sheet tightly adhered to the cloth surface.

(56) Surface resin

Appearance: Finished products processed by resin, the resin floats on the surface of the fabric, and it is gently scratched with the fingernail, which will produce a scratch.

Cause: When the resin is processed, the resin pressure is too high and the drying temperature is too high.

(57) Hairball

Appearance: Finished fabric processed by resin. There is a pilling phenomenon on the cloth surface. Wool, polyester staple fiber, and polyester staple fiber blended fabrics are more likely to occur.

Causes: 1). The fabric still has a lot of hairiness on the surface before the resin is processed. 2) When the resin is processed, no anti-pilling ball or an appropriate smoothing agent is added to the resin solution.

(58) Cracked yarn

Appearance: Weft knitted fabric, in which the terry of one row is pulled straight and straight.

Causes: Weft-knitted fabrics, which are incorrectly drawn in the direction of setting or resin processing, cause a row of tulle to be straightened.

(59) The fabric is shiny

Appearance: The cloth is too flat, with undesired light, which occurs in chemical fiber knits. Cause: When the resin is processed, the tension applied to the fabric is excessive.

(60) uneven surface

Appearance: The fabric with a full width of about 1 yard is spread flat on a platform. The cloth body has a phenomenon of unevenness, which mostly occurs in the weft-woven fabric.

Causes: Styling or resin processing is not effective, causing vertical and horizontal shrinkage of fabrics.

(61) Poor elasticity

Appearance: A stretchable knitted fabric, which stretches slightly in the vertical and horizontal directions, cannot return to its original shape and wrinkles.

Causes: 1). The filaments used for weaving have poor fastness of crimping. 2) When setting or resin processing, the set temperature is too high, or the fabric is heated by high temperature for too long, so that the processed yarn in the fabric loses its partial recovery.

(62) Paper Like

Appearance: The fabric is smooth, slightly stiff and less stretchable like paper.

Cause: The chemical filament fibers used for fabrics have a very low shrinkage in boiling water, for example, only 2% to 3%. Therefore, during the fabric processing process, they cannot be fully shrunk and the fabric exhibits a paper feeling.

(1) Oil

Appearance: A single piece of warp yarn in the fabric is contaminated with grease and the like.

Causes: Before the weft yarns are weaving, winding, or picking, they are impregnated with mechanical lubricants.

(2) Oil weft

Appearance: In the fabric, a single piece of weft yarn is contaminated with grease and the like.

Causes: When the weft yarn is weaving, it is impregnated with mechanical lubricants when it is shaken, wound up, or picked up.

(3) Oil yarn

Appearance: The yarn in the knitted fabric is contaminated with grease and other parts.

Cause: Contaminated with grease, etc. during winding or during transportation.

(4) Oil pollution

Appearance: Embroidered cloth or finished cloth, with oily stains ranging from roll to sheet.

Causes: 1) In the course of weaving or dyeing and finishing, splashed into lubricants. 2). Contamination of oils and fats during transportation.

(5) water stains

Appearance: The surface of the cloth or the finished cloth has traces that are naturally dried after being impregnated with water.

Causes: 1). Embroidered cloth or finished cloth, impregnated with water. 2). Traces of oil, oil, or greasy cloth on the embroidered cloth, or oil stains on the finished fabric after washing.

(6) Chafe Mark

Appearance: In the process of processing, the fabric becomes glossy, hue, and texture due to the friction of the fabric.

Such differences.

Causes: 1) In the process of processing, the fabric is transported and placed under unexpected friction. 2) When the Wenqi machine is used for dyeing, slip occurs between the oval wheel and the cloth. 3). In the machine of each process, it is subject to rough surface friction.

(7) Holes

Appearance: The cloth surface of the embroidered cloth or the finished fabric, and the warp and weft yarns are cut off to form a broken hole.

Causes: During the delivery or storage period, a sharp object collided. Hand-fishing is used when manpower is moved.

(8) crease

Appearance: There is a trace of folding on the cloth surface. The groove is uneven and uneven. It is wide and not a thin line. Stretching is flat and disappears. It often occurs in the direction of the length of the cloth and the beginning and end of a cloth.

Causes: 1) When the fabrics are folded into pieces, the fabric is uneven. Packed by the hydraulic press, the applied pressure is too large. 2). Wrinkles are present at the joints of the pre-treatment works and the joints. 3) When the pre-treatment process is introduced into the fabric, the cloth feeder does not fully develop the fabric, and the cloth is subjected to excessive force when it is fed into the cloth. 4). In the pretreatment process, the cloth guide rollers in the machine wash tank are not parallel or have a bend. 5) In the pre-treatment process, the machine bends the open cloth roll before the press roll, the adjustment angle is too large or too small, and the peripheral surface of the curved cloth roll wears, and the cloth does not fully spread flat in full before entering the press roll. 6) When using rotary cylinder dryer fabric, the fabric has wrinkles and wraps around the cylinder. 7) When the fabric is stretched or shaped, the creases that have been created are not leveled.

(9) Raising unevenness

Appearance: Raised fabrics, corduroy, velvet, towels, etc. The raised fabrics have a non-uniform appearance due to the length of the tufts or loops.

Causes: 1). The fabric has creases when it is pulled, or the fabric is not evenly tensioned. 2) Corduroy, velvet shearing is not controlled when flushed. 3). When the towels are woven, the hair loops formed are of different sizes.

(10) Hair Removal

Appearance: The hair tufts of the shearing fabric are easy to pull off.

Causes: The improper organization of the fabric, after cutting into a tuft of yarn, the clamping force is too small.

(11) Ripple

Appearance: There are a large number of yarns in the fabric, the movement does not occur in situ, and the fabric produces uneven wave bending. The warp yarns are far smaller than the weft yarns, or the warp yarns are filamentous fibers, and the weft yarns are most likely to be spun.

Causes: 1) When dyeing with the Wenqi dyeing machine, the bath ratio is too small and the length of the input fabric is excessive. The elliptical wheel rotates too fast. The fabric knots are subjected to abnormal tension. 2). When dyeing with a liquid flow dyeing machine, the bath ratio is small for a large amount of cloth. Spray jets are too strong. 3). The opener is used for the continuous production of cloth guides and cloth rolls. The angle of expansion is too large.